JPH10507546A - Audiovisual distribution system - Google Patents
Audiovisual distribution systemInfo
- Publication number
- JPH10507546A JPH10507546A JP8512989A JP51298996A JPH10507546A JP H10507546 A JPH10507546 A JP H10507546A JP 8512989 A JP8512989 A JP 8512989A JP 51298996 A JP51298996 A JP 51298996A JP H10507546 A JPH10507546 A JP H10507546A
- Authority
- JP
- Japan
- Prior art keywords
- audiovisual
- server
- network
- request
- distribution system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/04847—Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
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- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
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- G06F16/60—Information retrieval; Database structures therefor; File system structures therefor of audio data
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- G06F3/16—Sound input; Sound output
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- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/02—Payment architectures, schemes or protocols involving a neutral party, e.g. certification authority, notary or trusted third party [TTP]
- G06Q20/027—Payment architectures, schemes or protocols involving a neutral party, e.g. certification authority, notary or trusted third party [TTP] involving a payment switch or gateway
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- G06Q30/00—Commerce
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- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
- G06Q30/0641—Shopping interfaces
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/0014—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for vending, access and use of specific services not covered anywhere else in G07F17/00
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- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/30—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for musical instruments
- G07F17/305—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for musical instruments for record players
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- G10H1/00—Details of electrophonic musical instruments
- G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
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- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
- G10H1/0041—Recording/reproducing or transmission of music for electrophonic musical instruments in coded form
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- G10H1/00—Details of electrophonic musical instruments
- G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
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- G10H1/0058—Transmission between separate instruments or between individual components of a musical system
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- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
- G10H1/361—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
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- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
- G10H1/361—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
- G10H1/365—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems the accompaniment information being stored on a host computer and transmitted to a reproducing terminal by means of a network, e.g. public telephone lines
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/002—Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
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- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/34—Indicating arrangements
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- H—ELECTRICITY
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- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/40—Arrangements for broadcast specially adapted for accumulation-type receivers
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- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/76—Wired systems
- H04H20/77—Wired systems using carrier waves
- H04H20/78—CATV [Community Antenna Television] systems
- H04H20/79—CATV [Community Antenna Television] systems using downlink of the CATV systems, e.g. audio broadcast via CATV network
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- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/21—Billing for the use of broadcast information or broadcast-related information
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
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- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
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- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
- H04N21/4184—External card to be used in combination with the client device, e.g. for conditional access providing storage capabilities, e.g. memory stick
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- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
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- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
- H04N21/4314—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for fitting data in a restricted space on the screen, e.g. EPG data in a rectangular grid
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- H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
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- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
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- H04N21/81—Monomedia components thereof
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- H04N21/8113—Monomedia components thereof involving special audio data, e.g. different tracks for different languages comprising music, e.g. song in MP3 format
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- G06F9/46—Multiprogramming arrangements
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- G06F9/4806—Task transfer initiation or dispatching
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- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/155—User input interfaces for electrophonic musical instruments
- G10H2220/405—Beam sensing or control, i.e. input interfaces involving substantially immaterial beams, radiation, or fields of any nature, used, e.g. as a switch as in a light barrier, or as a control device, e.g. using the theremin electric field sensing principle
- G10H2220/411—Light beams
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- G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
- G10H2240/011—Files or data streams containing coded musical information, e.g. for transmission
- G10H2240/026—File encryption of specific electrophonic music instrument file or stream formats, e.g. MIDI, note oriented formats, sound banks, wavetables
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Abstract
(57)【要約】 本発明は、各オーディオビジュアル機器(8)が、ある作品またはメニューを選択するためのユーザとのインタラクティブ通信手段と、支払手段と、情報処理ネットワークカードと、曲選択によって生じる作品の実行順序がハードディスクへの逐次アクセスタスクとみなされ、要求の処理のためにネットワークを通して要求をサーバ(9)に送ることができるようにするために、周辺装置としてのハードディスクの宣言が機器のネットワークカードに対応する少なくとも一つのハードディスクアクセス管理タスクを含むマルチタスクオペレーティングシステムを有する半導体パーマネントメモリを含むオーディオビジュアル分配システムに関する。 (57) Abstract: The present invention provides that each audiovisual device (8) is provided by means of interactive communication with a user for selecting a certain work or menu, payment means, an information processing network card, and song selection. The order of execution of the works is regarded as a sequential access task to the hard disk, and the declaration of the hard disk as a peripheral device is set to the device so that the request can be sent over the network to the server (9) for processing the request. The present invention relates to an audiovisual distribution system including a semiconductor permanent memory having a multitasking operating system including at least one hard disk access management task corresponding to a network card.
Description
【発明の詳細な説明】 オーディオビジュアル分配システム 本発明は、ネットワークにおいて中央サーバに接続された複数のオーディオビ ジュアル機器のうちの少なくとも一つにおいてオーディオビジュアル作品を演奏 するためのオーディオビジュアル分配システムに関する。 テレビのチャンネルの放送に使用する同軸ケーブル型のケーブルネットワーク 上で選択作品を周波数多重化することによりジュークボックス型の機器から音楽 を供給することができるネットワークが知られている。このような装置は特に特 許文献EP 0140593号によって知られている。この装置は、信号を分離 するための変換器を必要とするという欠点と、あるチャンネルに関し全ての受信 機に同一の選択作品を分配することになる同軸型ネットワークを使用するという 欠点がある。 本発明の第一の目的は、選択作品が音声型であるか映像型である時、ネットワ ークが任意に、全ての機器に同一の選択作品を分配すること、あるいは各機器毎 に異なる選択作品を分配することができるようにすることである。 また、例えば英国特許文献2193420号および特許文献 PCT WO 9415416号などから、電話回線を必要とする音声作品の分 配ネットワークが知られている。電話回線が使われているため、ネットワークの データレートには限界があり、高画質の映像再生ができるようにするためにきわ めて高いデータレートを必要とする映像作品の分配には使用することができない 。 特許文献PCT WO 9415416号は、ISDN型の電話回線の使用を 示唆しているが、データレートが18メガビット/秒を限度とするこの種の回線 でも、高品質の映像情報を充分な数の機器に分配するには不充分である。 従って本発明は、各オーディオビジュアル再生機器の性能をほとんど犠牲にす ることなくそのコストを削減するためにコストが高い要素がサーバのレベルに移 されるネットワークを提供することも目的とする。このようにコストが高い要素 は、十分な数の特に映像情報作品の保存ができる大容量ハードディスク、ならび に複数のネットワークにつながっている中央システムとの間でネットワークの接 続ができるデータレートを有する遠隔通信モデムである。 この目的は、それぞれのオーディオビジュアル機器が曲の演 奏用の音声または映像手段を含み、各機器から選択可能な複数のオーディオビジ ュアル作品の磁気的または光学的大容量記憶手段を含む情報処理中央サーバに接 続された複数のオーディオビジュアル機器のうちの少なくとも一つの機器上にお いてオーディオビジュアル作品を演奏するためのオーディオビジュアル分配シス テムが、その特徴として、各オーディオビジュアル機器(8)が、ある作品また はメニューを選択するためのユーザとのインタラクティブ通信手段と、支払手段 と、情報処理ネットワークカードと、曲選択によって生じる作品の実行順序がハ ードディスクへの逐次アクセスタスクとみなされ、要求の処理のためにネットワ ークを通して要求を、マルチタスクオペレーティングシステムを含むサーバ(9 )に送ることができるようにするために、周辺装置としてのハードディスクの宣 言(declaration)が機器のネットワークカードに対応する少なくとも一つのハー ドディスクアクセス管理タスクを含むマルチタスクオペレーティングシステムを 有する半導体パーマネントメモリ(memorie permanente a semi-conducteur)と、 磁気的または光学的大容量記憶手段と、種々の機器の要求を受信するネットワー クカードとを含み、オペレーティングシステムが、機器 (8)によって出されるディスクアクセス要求を本来のディスクアクセス要求と みなすことを特徴とすることによって達成される。 別の特徴によれば、各オーディオビジュアル機器のオペレーティングシステム 内において、遠隔通信アクセスのタスクに属する遠隔通信モデルの周辺装置とし ての宣言はネットワークカードの宣言に相当し、機器のレベルにおいて遠隔通信 アクセス要求が行われると、この機器のネットワークカードは、少なくとも一つ の遠隔通信モデムを含むサーバにこの要求を送信する。 別の特徴によれば、オーディオビジュアル機器は要求によりあらかじめ、サー バのモデムカードが使用可能であることを確認する。 別の特徴によれば、各ネットワークカードのデータレートならびに映像および 音声制御回路のバッファは、少なくとも八個のオーディオビジュアル機器を含む ネットワーク上で動画を実現するのに充分なデータレートで情報の交換ができる ように規模が決定される。 別の特徴によれば、オーディオビジュアル機器は、タッチスクリーンと、ユー ザとのインタラクティブ通信手段としての付 属インタフェースソフトウェアとを含む。 別の特徴によれば、ネットワークは、8の倍数のオーディオビジュアル機器数 に対応するサーバ数と同数の、それぞれがハードディスクに結合されたサーバを 含む。 別の特徴によれば、各サーバのオペレーティングシステムは、ネットワークの 機器の要求に対する応答として供給される情報がネットワークの機器全体または 要求を発した各機器に供給されるかどうか判定することができる切換手段に結合 される。 別の特徴によれば、サーバは、作品の音声または映像実現手段と、支払手段と 、ユーザまたはネットワークの管理者とのインタラクティブ通信手段とを備える 。 本発明の他の長所および特徴は、本発明の非限定的例として示した添付の図面 を参照して行う以下の図面を読むことにより明らかになろう。 第1図は、本発明によるネットワークの略図である。 第2図は、ネットワークのオーディオビジュアル機器を構成する回路の略図で ある。 第3図は、ネットワークのサーバを構成する回路の略図である。 第4図は、ネットワークの各機器または各サーバのハードウェアおよびソフト ウェア手段を管理するマルチタスクシステムの構成を示す図である。 第5図は、マルチタスクオペレーティングシステムの動作を説明するフローチ ャートである。 第6図は、マルチタスクシステムの内部でのタスクの活動の確認用フローチャ ートである。 第7図は、タスクの待ち行列への投入のフローチャートである。 オーディオビジュアル再生システムは以下に第1図に関して列記し符号を付け たハードウェア要素を使用するのが好ましいが、それに限定されるものではない 。 システムは、相互に接続されさらに情報処理ネットワークにより少なくとも一 つのサーバ(91、92)に接続された複数のオーディオビジュアル機器(81、 82、…、8i、…、816)から成る。 LAN(10)に接続できるサーバには、ホストサーバ(91)とミラーサー バ(92)の二種類のサーバ(91、92)がある。ホストサーバ(91)は、LA N上で能動的に必要と されるサーバである。ジュークボックス(8)からの要求を受信し作業を行うの はこれらのサーバである。 ミラーサーバ(92)の作業はホストサーバ(91)のクローンをつくることで ある。ミラーサーバはあらゆる変化に関しホストと完璧に同期されなければなら ない。ホストサーバ(91)がジュークボックス(8)の要求を満たすことがで きなくなったことをミラーサーバが検出した時には、ホストサーバが再び正常に 動作するようになるまで交替を務めるために、ネットワークの管理者に救助信号 を送らなければならない。 各サーバ(91、92)は、例えば高性能PCコンパチブルシステムであるマイ クロプロセッサ中央処理装置(第3図の1)から成る。実施時は、記憶手段およ び以下の仕様を有するインテル80486DX/2型のシステムを採用した。 − Vesaローカルバスとのコンパチビリティ − プロセッサのキャッシュメモリ:256キロバイト − ネットワークカード(71)100メガビット − 高性能シリアルおよびパラレルポート − SCSI/2型バスコントローラ 32ビット − 32Mbyte自動給電(auto-alimentee)R/Wスタティ ックRAM ネットワークカードのオペレーティングシステムは、NOVELL、OS/2 LAN SERVER、UNIXなどのLANサーバ、あるいは他の同様のオ ペレーティングシステムでなければならない。 このネットワークのサーバのソフトウェアを使用して、優先度およびLANに 接続された各クライアントへのアクセス規定を適用することにより、装置のデー タおよびリソースへのアクセス、交換および共有をスムーズに行うことができる 。 同等またはそれ以上の性能を有する他の中央処理装置を本発明において使用す ることができる。 サーバの中央処理装置(第3図の1)は、ネットワーク制御回路(7)と、遠 隔通信制御回路(4)と、入力制御回路(3)と、大容量記憶制御回路(2)と を制御し管理する。サーバ(9)がジュークボックスとして動作しなければなら ない場合には、音声制御回路(5)、および機器(8)と同じ表示手段制御回路 (6)を追加することが可能である。表示手段の主要な構成要素は、高解像度低 放射型(faible rayonnement)SVGA型非インターレスの14インチ(35.5 6cm)フラットスクリ ーン式ビデオモニタ(62)であり、グラフィックまたはビデオクリップの画像 (例えば選択した音楽のアルバムのカバー)の再生に使われるのはこのモニタで ある。 サーバ(9)は、メンテナンス用として、インタフェース回路(3)によって 管理されるキーボードコネクタを有するシステムに接続することができる外部キ ーボード(34)を使用する。 高速および大容量SCSI型ハードディスクを使用する大容量記憶手段(21 )は、サーバ(9)のマイクロプロセッサ装置内に既に存在する記憶手段に結合 される。これらの手段は、記憶され圧縮されたオーディオビジュアル情報の保存 に使用される。 複数のサーバを管理する中央サーバによって制御されるオーディオビジュアル 情報分配ネットワークとの結合を行えるようにするために、28.8kbps高 速通信モデム回路(41)がサーバ(9)に内蔵される。 各オーディオビジュアル機器(8)は、例えば高性能PCコンパチブルシステ ムであるマイクロプロセッサ中央処理装置(第2図の1)を含む。 実施時は、記憶手段および以下の仕様を有するインテル80486DX/2型 のシステムを採用した。 − Vesaローカルバスとのコンパチビリティ − プロセッサのキャッシュメモリ:256kByte − 100Mbitsのネットワークカード(71) − 32Mbyteの自動給電R/WスタティックRAM − 高性能シリアルおよびパラレルポート 同等またはそれ以上の性能を有する他の中央処理装置を本発明において使用す ることができる。 この中央処理装置は、音声制御回路(5)と、遠隔通信制御回路(4)と、入 力制御回路(3)と、大容量記憶制御回路(2)と、表示手段制御回路(6)と を制御し管理する。表示手段の主要な構成要素は、高解像度低放射SVGA型非 インターレスなしの14インチ(35.56cm)フラットスクリーン式ビデオ モニタ(62)であり、グラフィックまたはビデオクリップの画像(例えば選択 した音楽のアルバムのカバー)の再生に使われるのはこのモニタである。 選択した音楽の音声情報を再生するために、機器および場合によっては単数ま たは複数のサーバは、後記する目的のために 二つのバッファメモリ(56、57)が追加された例えばCreative L abs Inc社のSBP32AWE「Sound Blaster」カード型 マイクロプロセッサ内蔵マルチメディア音声アダプタなどのCD(コンパクトデ ィスク)の音質を有する出力を提供しつつ、多数の入力音源をサポートするよう にした音楽シンセサイザ型電子回路(5)に接続されたアンプ−チューナ(53 )から信号を受け取るスピーカ(54)を含む。この回路(5)はネットワーク を介して到着したデジタル情報を伸長する役割をもつ。 同様に、表示手段制御回路も、後記する目的のために二つのバッファメモリ( 66、67)を含む。 送風され温度調整された240ワットの電源によりシステムにエネルギーが供 給される。この電源は、過電流および過振動から保護されている。 機器(8)および場合によっては単数または複数のサーバ(9)は、その入力 制御回路(3)を介して、「先進的表面波技術」を使用するガラス被覆パネルお よびAT型バスコントローラを含むElo Touch Systems In c.社の14インチ(35.56cm)「Intelli Touc h」タッチスクリーン(33)を管理する。このタッチスクリーンにより、ビデ オモニタ(62)またはテレビ(61)の画面土に表示した後、クライアントが 使用する種々の選択情報、ならびにシステムの管理者または所有者が使用する制 御および管理チェック情報が得られる。このタッチスクリーンは、インタフェー ス回路(3)を通じてキーロック(32)によって管理されるキーボードコネク タを有するシステムに接続することができる外部キーボード(34)と組み合わ せて、メンテナンスの用途にも使用される。 入力回路(3)はシステムとともに、例えば − マイクロプロセッサシステム用として15個の制御キーと投射装置として 8個の制御キーとを有する発信器であるMind Path Technolo gies Inc.社の赤外線リモートコントローラと、 − Mind Path Technologies Inc.社のシリアル アダプタ付き赤外線受信器と から成る遠隔制御アセンブリ(31)との間のインタフェースになる。 National Rejectors Inc.社の聴取 料支払いシステム(35)を具備するネットワークの各機器も入力インタフェー ス回路(3)に接続される。また、硬貨、札、メダル、チップ磁気カード、ある いは複数の支払い手段の組合せなどあらゆる支払い方法による受領ができる全く 別の装置を使用することも可能である。 システムを収納するために、カスタム化が可能な外側パッキンをもつ鋼鉄製シ ャーシまたはベッドがさらに設けられる。 これらの要素の他にも、有線または無線マイクロフォン(55)を各機器の音 声コントローラ(5)に接続することができ、それにより機器を、高出力一般向 け連絡情報システム、あるいは場合によってはカラオケマシンに変えることがで きる。また、システムは無線スピーカシステムを使用することもできる。 遠隔制御アセンブリ(31)により管理者は、 − マイクロフォンの入/切スイッチ − スピーカのミュートスイッチ − 音量の調節スイッチ − 演奏中の選択曲のキャンセルスイッチ などのスイッチにアクセスしそれらを制御することができる。 四分の一秒の音に相当する情報をバッファ(56、57)がそれぞれ交互に記 憶できるように、これら二つのバッファが音声コントローラ回路(5)に接続さ れる。同様に、二つのバッファ(66、67)が、十分の一秒の映像をそれぞれ 交互に記憶することができるビデオコントローラ回路(6)に接続される。最後 に入力インタフェースバッファ(36)は各機器(8)またはサーバ(9)の各 入力インタフェース(3)に接続される。 広くマルチメディア環境のオーディオビジュアル領域を指向するツールおよび サービスライブラリの周囲に、システムの各機器(8)またはサーバ(9)の運 用ソフトウェアが作成された。このライブラリは、多くのコードフラグメントを 効果的に同時実行することができる高性能マルチタスクオペレーティングシステ ムを含むのが有利である。この運用ソフトウェアにより、表示手段および音声再 生手段上で行われる操作を、コンフリクトが一切おこらないようにして整然と同 時実行することができるとともに、分配ネットワークを通して遠隔通信リンクの 管理を行うことができる。さらにこのソフトウェアは高い柔軟性を有する。 デジタル化され圧縮されたオーディオビジュアルデータはサーバ(9)の記憶 手段(21)に保存される。 各選択曲は、二つのデジタル化フォーマット、すなわちハイファイ品質または CD品質、で利用することができる。 各機器(8)の運用ソフトウェアは、各機器(8)の自動給電R/Wスタティッ クRAMに置かれるが、サーバ(9)の運用ソフトウェアは、ハードディスク( 21)内に保存し、サーバのRAM内にロードし利用することができる。 オペレーティングシステムを構成するモジュールに特有なタスタは、マルチタ スクオペレーティングシステムを使用する環境内で同時に実行されることについ て留意する必要がある。従ってフローチャートは、あるモジュールが実行すべき 特有な作業を示すものであって、他のモジュールによって実行される作業を全て 無効化するモジュールへの分岐を示すものではない。 SSMで参照される第一モジュールは起動モジュールである。このモジュール は一つのサービスしか供給しない。従ってこのモジュールは機器またはサーバの 電源投入時に自動的にロードされ、直接、RMMモジュールの「運転中」モード に入る。 RMMモジュールは、機器またはサーバの登録番号が有効化 された時点で機器またはサーバが入る動作モードである「運転中」モードのモジ ュールである。このモードでは機器(8)またはサーバ(9)は、例えば、 − ユーザが機器(8)の画面に触れて、フォワグラウンドのセッションの制 御がクライアント選択および検索モードのCBSMモジュールに移る、 − TSMテレコムサービスモジュールによる遠隔通信ネットワークの呼び出 し要求、 のようにあらかじめ定義された種々のイベントによって起動することができる要 求を操作する準備ができている。 機器(8)またはサーバ(9)は前記に記載のイベントのうちの一つが発生す るまで「運転中」モードのままである。 CBSMモジュールはクライアント選択および検索モードモジュールである。 このモジュールへのアクセスは、クライアントが画面に触れた時、「運転中」モ ードから起動される。表示によりユーザは、曲の選択における案内をするための デジタル化音声メッセージ支援強力検索のために用意されたメニューを視覚化す ることができる。 TSMモジュールは、ネットワークのサーバと、異なるネッ トワークに属する複数のサーバを管理する中央システムとの間の遠隔通信サービ スモードモジュールである。このモジュールにより、分配ネットワーク上で使用 可能な管理サービスを全て管理することができる。遠隔通信に固有なタスクは全 て、バックグラウンドタスクとして管理される。これらのタスクは常に、機器ま たはサーバがそのフォワグラウンドタスクを全て終了した時点で残っている処理 時間の部分のみを使用する。従って、機器がより優先度の高いタスクのうちの一 つに占有されると、遠隔通信タスクは、システムのリソースに関する制約を自動 的に軽減しようとするとともに、まだ使用可能なマイクロプロセッサの処理時間 を回収しようとする。 SPMMモジュールにより、選択順に演奏するためにシステムにより待ち行列 にされる歌またはビデオの選択曲の管理を行うことができる。 マルチタスオペレーティングシステムは、多くのコードフラグメントを同時に 実行できるようにし、起動される種々のタスク間の優先度を管理するためにはな くてはならない要素である。 このマルチタスオペレーティングシステムは、第4図に示すように、タスク間 の優先度決定モジュール(11)を含むカー ネルと、タスクスーパーバイザモジュール(12)と、使用ハードウェアの系列 化モジュール(13)およびプロセス通信モジュール(14)とを中心に構成さ れる。各モジュールは、アプリケーションのプログラミングインタフェース(1 5)およびデータベース(16)との間で通信を行う。アプリケーションと同数 のプログラミングインタフェースが存在する。例えばモジュール(15)は、タ ッチスクリーン(33)用のプログラミングの第一インタフェース(153)と 、キーボード(34)用のプログラミングの第二インタフェース(154)と、 支払装置(35)用のプログラミングの第三インタフェース(155)と、音声 制御回路(5)用のプログラミングの第四インタフェース(156)と、映像制 御回路(6)用のプログラミングの第五インタフェース(157)と、情報処理 ネットワーク制御回路(7)用のプログラミングの最後のインタフェース(15 8)とを含む。 ネットワークキットの購入時、ネットワークカードのプログラミングインタフ ェースはカードとともに供給されること、ならびにネットワークカードは、各オ ーディオビジュアル機器(8)のハードディスクまたは遠隔通信モデムカードを 構成す る周辺装置としてオペレーティングシステムに宣言されることに注意することが 肝要である。従って、各機器(8)の各オペレーティングシステムは、選択に引 き続いて遠隔通信手順またはハードディスクアクセスの呼び出しがあると、サー バのネットワークカードにより各オーディオビジュアル機器(8)が呼び出され たリソースを使えるようになる通信セッションを開始する。 優先度の高い順に並べられる五つのタスクは、オペレーティングシステムの核 (カーネル)によって管理され、映像入出力用の第一タスク(76)は最も高い 優先度を有し、第二レベルの第二タスク(75)は音声に関し、第三レベルの第 三タスク(74)は遠隔通信に関し、第四レベルの第四タスク(73)はインタ フェースに関し、第五レベルの第五タスク(70)は管理に関する。これらの優 先順位は、タスクの出現および消失に応じて、優先度決定モジュール(11)に よって考慮される。従って、映像タスクが現れると実行中の他のタスクは一時停 止され、このタスクに優先度が与えられ、システムのリソースは全て映像タスク に割り当てられる。出力側における映像タスク(76)は、大容量メモリ(21 )から映像ファイルを二つの バッファ(66、67)の一つに交互にアンロードすることを目的とするが、こ の時、他方のバッファ(67または66)は、映像コントローラ回路(6)によ り、データの伸長後、表示を行うために使用される。入力側では映像タスク(7 6)は、遠隔通信バッファ(46)内に受信したデータを大容量メモリ(21) に転送することを目的とする。入力側における遠隔通信バッファ(46)と大容 量メモリ(21)のバッファ(26)との間も、出力側における大容量メモリ( 21)のバッファ(26)と音声コントローラ回路(5)の二つのバッファ(5 6、57)のうちのいずれかの間も同様である。 次に第5図を参照しながらタスクスーパーバイザモジュール(12)について 説明する。このモジュールは、映像タスクがアクティブであるかどうか、すなわ ち映像バッファ(66、67)のうちのいずれかが空であるかどうかを判定する ために、優先順位に従い、第一テスト(761)を行う。答えが否定であった場 合には、タスクスーパーバイザモジュールは、音声タスクがアクティブであるか どうか、すなわち音声バッファ(56、57)のうちのいずれかが空であるかど うかを判定するために、第二テスト(751)である次のテストに移る。答 えが否定であった場合には、第三テスト(741)が、通信タスクがアクティブ であるかどうか、すなわちバッファ(46)が空であるかどうかを判定する。テ ストの一つにおいて答えが肯定であった場合には、タスクスーパーバイザモジュ ール(12)はステップ(131)でメモリアクセス要求(13)を待ち行列に 投入し、ステップ(132)で、大容量メモリ(21)とアクティブなタスクに 対応するバッファとの間においてこの読み込みまたは書き込み要求を実行し、次 に第一テストに再ループする。通信の動作についてのテスト(741)が肯定で あると、スーパーバイザ(12)は、メモリの情報の読み込みまたは書き込みを 行うのかどうかを判定するためのテスト(742)を実行する。肯定であれば、 ステップ(131)で、書き込みまたは読み込み要求が行列に投入される。肯定 でない場合には、スーパーバイザはステップ(743)で、送信であるのか受信 であるのかを判定し、送信の場合には、ステップ(744)で、情報ブロックを 中央サーバに送る。受信の場合には、スーパーバイザはステップ(746)で、 カーネルのバッファにアクセスがないことを確認し、肯定であれば、ステップ( 747)でデータブロックの受信に同意するために中央 サーバにメッセージを送る。ブロックの受信後、サイクリック冗長度チェックC RC型のエラーチェック(748)が行われる。所与の番号をもつブロックが拒 否または許可されたことを示す対応するメッセージを中央サーバに送信すること により、エラーの場合にはステップ(740)でブロックが拒否され、そうでな い場合にはステップ(749)で許可され、当初のテストに再ループする。上位 レベルのタスクが一切アクティブでない場合には、スーパーバイザはステップ( 731または701)で、インタフェースまたは管理タスクの処理を行う。 アクティブまたは準備ができているタスクの検出は、第6図に示すように、中 央処理装置(1)に接続された各ハードウェア装置の各コントローラ回路(2、 3、4、5、6)に結合された、ハードディスクのハードウェアまたはソフトウ ェアバッファ(26)、インタフェースバッファ(36)、遠隔通信バッファ( 46)、音声バッファ(56および57)、映像バッファ(66および67)上 の各テスト(721から761)によって行われる。 テスト(721)により、ディスクの入出力メモリのバッファ内にデータが存 在するかどうかがわかり、テスト(731) により、クライアントインタフェース装置のハードウェアまたはソフトウェアメ モリバッファ内にデータが存在するかどうかがわかり、テスト(741)により 、遠隔通信装置のハードウェアまたはソフトウェアメモリバッファ内にデータが 存在するかどうかがわかり、テスト(751)により、音声用ハードウェアまた はソフトウェアメモリバッファ内にデータが存在するかどうかがわかり、テスト (761)により、映像装置のハードウェアまたはソフトウェアメモリバッファ 内にデータが存在するかどうかがわかる。 これらのバッファのうちの単数または複数にデータがある場合には、スーパー バイザ(12)は、動作を示すロジック状態にあるハードウェアに相当する単数 または複数の、ハードディスク用状態バッファ(821)、インタフェース用状 態バッファ(831)、遠隔通信用状態バッファ(841)、音声用状態バッフ ァ(851)、映像用状態バッファ(861)の位置決めを行う。データがない 場合には、スーパーバイザの状態バッファはステップ(800)で、非動作を示 す値に戻される。 サーバ(9)と機器(8)の動作状態はそれぞれ、サーバ(9)のハードディ スク(21)上、機器(8)の自動給電メモリ内 で維持される。 システムは、記録すべきイベントが発生する毎に、それを直ちにパーマネント 保管リソース(ressource de stockage permanent)上に記録する。 従って、万一停電または設備の破損が発生しても、システムは、停止された位 置と全く同じ位置から再起動することができることになる。 動作における状態の保存を発生させるイベントは、 − 入金(クレジットの追加)、 − 待ち行列への曲名の追加、 − 選択曲の終了(現在聴取中の曲の変更) である。 ファイルは処理装置だけが読める機械フォーマットであり、64バイト以上に はならない。 アクティブなタスクの数および種類は、フローチャートを第7図に示す選択曲 管理SPMMモジュールの実行によりスーパーバイザ(12)に示される。この モジュールが実行する管理は、選択曲が行列内で待機中であるかどうかを判定す るためのテスト(61)から始まる。 次に、待ち行列に関するテスト(61)により、選択曲が待機中であると判定 された場合には、クライアントが聞こうとする曲名を選択すると、この曲は、ハ ードディスク上のシステムの待ち行列ファイル内に自動的に書き込まれる。 従って、停電時でも各選択曲は決して失われない。システムは選択曲全体を演 奏(再生)した後、待ち行列ファイルから削除する。 選択曲全体の再生が終ると、選択曲は待ち行列ファイルから削除され、購入年 月日および時間、ならびに曲の演奏年月日および時間とともに、システムの統計 ファイル内に書き込まれる。 システムは、終了した選択曲を統計ファイルに転送した直後、待ち行列ファイ ル内に別の選択曲があるかどうかを確認する。別の選択曲がある場合には、シス テムはその選択曲の演奏を直ちに開始する。 選択曲が音声シナリオ(scenario audio)を含むかどうかを判定するためのテス ト(65)によって処理は継続する。含む場合には、このシナリオはステップ( 651)でスーパーバイザ(12)のタスク行列に登録される。含まない場合、 あるいはこの登録の後は、選択曲が動画を含むかどうかを判定するため のテスト(66)によって処理は継続する。含む場合には、映像のシナリオはス テップ(661)でスーパーバイザ(12)のタスク行列に登録される。含まな い場合、あるいはこの登録の後は、選択曲が静止グラフィックを含むかどうかを 判定するためのテスト(64)によって処理は継続する。含む場合には、グラフ ィックの表示のシナリオはステップ(641)でスーパーバイザ(12)のタス ク行列に登録される。含まない場合、あるいはこの登録の後は、選択曲が広告の シナリオを含むかどうかを判定するためのテスト(63)によって処理は継続す る。含む場合には、シナリオはステップ(631)でスーパーバイザ(12)の タスク行列に登録される。このようにして、開かれたタスクを知らされたスーパ ーバイザ(12)は、タスクの進行を同時に管理することができる。 映像タスクに最も高い優先度を割り当てることによるタスク管理モードである ことと、データを一時的に記憶するために各タスクに割り当てられたハードウェ アまたはソフトウェアバッファが存在すること、ならびに各タスクに関する状態 バッファが存在し、情報処理ネットワークを介して各機器とサーバとの間で通信 が行われることとにより、機器(8)のいくつかのタ スクに必要なコストが高いリソースを、同じくマルチタスクオペレーティングシ ステムを有する単一の中央処理装置(9)に移すことができる。 基本サーバ(9)は、8合までのクライアントジュークボックスを有するLA Nを管理することができる。追加のハードディスクなどの適当な周辺装置を追加 することにより、サーバは最大8合の追加のジュークボックスを管理することが できる。さらにジュークボックスを追加するために、タスクを共有する複数のサ ーバを有するLAN環境を創り出すことができる。このようにして、どのような ニーズも管理できる環境を創り出すことができる。 設備が完備したサーバは16合のジュークボックスを管理するのに充分なリソ ースを有する。一つのサーバは、曲に必要な空きスペースがある限り曲を格納す ることができるディスクを7枚までサポートすることができる。音声および部分 グラフィック作品の場合、3.4125MBitsの空き容量が必要であり、音 声および映像作品の場合、39.568MBitsの空き容量が必要である。 これらの限界を越えて、時には数百もの部屋をもつホテルな どの施設の需要に応えるために、曲および/またはジュークボックスを管理する ための多くのサーバとのネットワークの構成を保存するためのRAIDなどの大 容量保存技術を使用することが可能である。 また、外部へのネットワークの遠隔通信における追加的需要に応えるために、 モデムなどの追加遠隔通信周辺装置(41)を追加することも可能である。 ネットワークによりサーバは、作業、情報処理操作および設備の冗長を防ぐた めに、各ジュークボックスに共通な複数のタスクを行う責任を遂行することがで きる。 LANは、ジュークボックス全てに共通なデータを維持することができるリン クを確立し、これを各ジュークボックスからアクセスできるようにすることによ り、全てのジュークボックス間の重要なリンクの役割も果たす。 サーバ上に維持される共通データは、オーディオビジュアル作品、各ジューク ボックスの使用および買い上げ統計、又はオーディオビジュアル作品に関する統 計である。 遠隔通信周辺装置はサーバ(9)に集中化されているため、ジュークボックス またはオーディオビジュアル機器(8)は遠 隔通信周辺装置をもたないが、サーバ(9)に要求を出し、サーバはこれを優先 的に処理する。また、ジュークボックスまたはオーディオビジュアル機器は、オ ーディオビジュアル作品を保存するために必要なディスク空間ももたない。なぜ なら、LANの全てのジュークボックスがオーディオビジュアル作品を共有でき るようにするため、サーバ(9)に集中化されているからである。 情報は全て集中化され、ハードディスクをもたないユニットを実現し、最も故 障しやすい部品をなくすことにより保守が軽減されることから、ネットワークの ジュークボックス(8)は永久的保存のスペースをほとんど必要としない。ハー ドディスクをもたないジュークボックス(8)内のパーマネントメモリ区域は、 全情報と、サーバとのリンクを確立しジュークボックスのオペレーティングシス テムを起動するのに必要な運用プログラムとを含む。 このパーマネントメモリは、EEPROMメモリ、電池により保持されるスタ ティックメモリバンク、さらには、電池により保持されるスタティックメモリバ ンクであってハードディスクのタスクのクローンをつくることができる機能を有 するHA RD CARDと呼ばれるカードとすることができる。 ジュークボックス(8)のオペレーティングシステムは、作業を行う前に、必 要なリソースがあることを確認する。オペレーティングシステムは、これを行う ために、集中周辺装置とのリンク状態を管理し、必要であれば、ジュークボック スと必要な周辺装置との間に適当なリンクを確立する要求をサーバに出す。ジュ ークボックスが例えば遠隔通信リソースを利用していない場合、サーバ(9)は ジュークボックスに対し独占的リンクを与える。 一旦リンクが確立されれば、ジュークボックス(8)はあたかもリソースが自 分自身のものであるかのようにして作業を行うことができる。ジュークボックス (8)は、作業の終了後、リソースへの接続を解くようサーバに要求を送り、そ の結果、リソースはネットワークの他のジュークボックス(8)が利用できるよ うになる。 分配、および整理されたリソースへのアクセス権を許可するために使われる順 序およびロジックは、サーバ(9)上に駐在するネットワークのオペレーティン グシステムによって管理される。 従って、ハードウェアまたはソフトウェアキーなどの切り換え装置により、ネ ットワークの利用者は、サーバ(9)に、ネットワークの全ての機器(8)に同 一の曲を送信させるか、各機器(8)に異なる曲を送信させるかを決めることが できる。後者の場合、ハードディスクのリソースへのアクセスは、各機器間でタ イムシェアリングで行われ、各機器(8)のバッファ(56、57;66、67 )は、音声または映像の実行時に切れ間がないようにしつつ次のアクセスを待機 するのに充分な容量を有する。 さらに、一式のツールおよびサービスを含むライブラリを有するマルチタスク オペレーティングシステムは、それが記憶手段内に組み込まれ、そのようにして 得られる柔軟性がきわめて高いため、運用を非常に著しく容易にすることができ る。これにより、音声の再生、画像およびグラフィックスの表示、動画映像を同 時に、簡単かつ効果的に管理することにより、マルチメディア環境を作り出すこ とが可能である。さらに、オーディオビジュアル情報がデジタル化され記憶手段 内に保存されることから、ネットワークのコストは大幅に軽減される。 同様に、各機器(8)の遠隔通信機能に必要なハードウェア をネットワークのサーバ上に移したことにより、コストが大幅に下げられ、10 0Mビット/秒のデータレートを有する情報処理ネットワークを使用することに より、少なくとも八つの機器を同時に使用することができる。これらの機器は全 て、各機器上で異なる動画像を同時に再生することができる。 このことは、動画像にとってはもはや不充分であるデータレートが1Mビット /秒程度であるWO 94/15416号のISDNネットワークでは不可能で あっただろう。また、他のデータ遠隔伝送回線でも同じことが言える。 当業者にとって可能なあらゆる変更も本発明の一部を構成する。従って、バッ ファが問題になる場合、バッファはそれが割り当てられる回路上に物理的に存在 するか、あるいはシステムのメモリ内に記憶領域を確保することによりソフトウ ェアによってつくることができることに留意されたい。DETAILED DESCRIPTION OF THE INVENTION Audiovisual distribution system The present invention relates to an audiovisual distribution system for playing audiovisual works on at least one of a plurality of audiovisual devices connected to a central server in a network. There is known a network in which music can be supplied from a jukebox-type device by frequency-multiplexing a selected work on a coaxial cable-type cable network used for broadcasting a television channel. Such a device is known in particular from the patent document EP 0 140 593. This device has the disadvantage of requiring a transducer to separate the signals, and the disadvantage of using a coaxial network that will distribute the same selection to all receivers for a given channel. A first object of the present invention is to distribute the same selected work to all devices arbitrarily when the selected work is audio type or video type, or to select a different selected work for each device. Is to be able to distribute. Also, for example, a distribution network of audio works that requires a telephone line is known from British Patent No. 2,193,420 and Patent Document PCT WO 9415416. Due to the use of telephone lines, network data rates are limited and cannot be used for distribution of video works that require extremely high data rates to enable high quality video playback. . Patent Document PCT WO 9415416 suggests the use of an ISDN type telephone line, but even with this type of line having a data rate limit of 18 Mbit / s, a sufficient number of devices can provide high quality video information. Is insufficient to distribute to It is therefore an object of the present invention to provide a network in which expensive components are moved to the server level in order to reduce the cost of each audiovisual playback device with little sacrifice in performance. Such costly factors include a large hard disk capable of storing a sufficient number of especially video information works, as well as telecommunications with a data rate that allows a network connection with a central system connected to multiple networks. It is a modem. The purpose of this is to provide an information processing central server in which each audiovisual device includes audio or video means for playing a song and includes magnetic or optical mass storage means for a plurality of audiovisual works selectable from each device. An audiovisual distribution system for playing audiovisual works on at least one of a plurality of connected audiovisual devices, characterized in that each audiovisual device (8) selects a work or a menu. Means for interactively communicating with the user, payment means, an information processing network card, and the execution order of the work caused by the song selection are regarded as a sequential access task to the hard disk, and the request is processed through the network for processing the request. , Multitasking operation A multitasking operating system, wherein the declaration of the hard disk as a peripheral device comprises at least one hard disk access management task corresponding to the network card of the device, so that it can be sent to the server (9) containing the operating system. A semiconductor permanent memory having a system, a magnetic or optical mass storage means, and a network card for receiving various device requests, the operating system comprising: This is achieved by characterizing the issued disk access request as an original disk access request. According to another feature, within the operating system of each audiovisual device, the declaration of a telecommunications model as a peripheral belonging to the task of telecommunications access corresponds to the declaration of a network card, and the telecommunications access request at the device level. Is performed, the device's network card sends the request to a server that includes at least one telecommunications modem. According to another feature, the audiovisual device confirms in advance on request that the server's modem card is available. According to another feature, the data rate of each network card and the buffers of the video and audio control circuits allow the exchange of information at a data rate sufficient to achieve moving pictures over a network containing at least eight audiovisual devices. The scale is determined so that it can be done. According to another feature, an audiovisual device includes a touch screen and ancillary interface software as a means of interactive communication with a user. According to another feature, the network includes as many servers, each coupled to a hard disk, as the number of servers corresponding to a multiple of eight audiovisual devices. According to another feature, the operating system of each server can determine whether the information provided in response to the request of the device of the network is provided to the entire device of the network or to each device that made the request. Coupled to the means. According to another feature, the server comprises means for audio or video realization of the work, means for payment, and means for interactive communication with the user or the administrator of the network. Other advantages and features of the invention will become apparent on reading the following drawings made with reference to the accompanying drawings, given by way of non-limiting example of the invention. FIG. 1 is a schematic diagram of a network according to the present invention. FIG. 2 is a schematic diagram of a circuit constituting an audiovisual device of a network. FIG. 3 is a schematic diagram of a circuit constituting a server of a network. FIG. 4 is a diagram showing a configuration of a multitask system for managing hardware and software means of each device or each server of the network. FIG. 5 is a flowchart for explaining the operation of the multitask operating system. FIG. 6 is a flowchart for confirming the activity of a task inside the multitask system. FIG. 7 is a flowchart for putting a task into a queue. The audiovisual playback system preferably uses, but is not limited to, the hardware elements listed and numbered below with respect to FIG. The system comprises at least one server (9) interconnected by an information processing network. 1 , 9 Two ) Connected to multiple audiovisual devices (8 1 , 8 Two ,…, 8 i ,…, 8 16 ). Servers that can be connected to the LAN (10) include host servers (9 1 ) And mirror server (9 Two ) Two types of servers (9 1 , 9 Two ). Host server (9 1 ) Is a server that is actively needed on the LAN. It is these servers that receive and work on requests from the jukebox (8). Mirror server (9 Two ) Work on the host server (9 1 ). The mirror server must be perfectly synchronized with the host for any changes. Host server (9 1 ) Can no longer fulfill the request of the jukebox (8), the rescue signal is sent to the administrator of the network in order to take over until the host server is operational again, when the mirror server has failed. Must be sent. Each server (9 1 , 9 Two ) Comprises a microprocessor central processing unit (1 in FIG. 3) which is a high-performance PC-compatible system, for example. At the time of implementation, an Intel 80486DX / 2 type system having storage means and the following specifications was adopted. -Compatibility with Vesa local bus-Processor cache memory: 256 Kbytes-Network card (71) 100 Mbit-High performance serial and parallel port-SCSI / 2-type bus controller 32 bits-32 Mbyte auto-alimenteeR / W Static RAM The operating system of the network card must be a LAN server such as NOVELL, OS / 2 LAN SERVER, UNIX, or other similar operating system. By using the software of the server of this network and applying the priority and the access rule to each client connected to the LAN, it is possible to smoothly access, exchange and share data and resources of the device. . Other central processing units having equivalent or better performance can be used in the present invention. The central processing unit (1 in FIG. 3) of the server controls a network control circuit (7), a remote communication control circuit (4), an input control circuit (3), and a mass storage control circuit (2). And manage. If the server (9) has to operate as a jukebox, it is possible to add an audio control circuit (5) and a display control circuit (6) which is the same as the equipment (8). A key component of the display means is a high resolution, low radiation, non-interlaced, 14 inch (35.66 cm) flat screen video monitor (62) of the SVGA type, which displays graphics or video clip images ( It is this monitor that is used for playback of the selected music album cover, for example. The server (9) uses an external keyboard (34) that can be connected to a system having a keyboard connector managed by the interface circuit (3) for maintenance. The mass storage means (21) using a high speed and large capacity SCSI type hard disk is coupled to the storage means already present in the microprocessor device of the server (9). These means are used to store stored and compressed audiovisual information. A 28.8 kbps high speed communication modem circuit (41) is included in the server (9) to enable coupling with an audiovisual information distribution network controlled by a central server managing a plurality of servers. Each audiovisual device (8) includes a microprocessor central processing unit (1 in FIG. 2), for example a high performance PC compatible system. At the time of implementation, an Intel 80486DX / 2 type system having storage means and the following specifications was adopted. -Compatibility with Vesa local bus-Processor cache memory: 256 kBytes-100 Mbits network card (71)-32 Mbytes of auto-powered R / W static RAM-High performance serial and parallel ports Others with equal or better performance A central processing unit can be used in the present invention. This central processing unit includes a voice control circuit (5), a remote communication control circuit (4), an input control circuit (3), a large-capacity storage control circuit (2), and a display means control circuit (6). Control and manage. A key component of the display means is a high-resolution low-emission SVGA non-interlaced, 14-inch (35.56 cm) flat-screen video monitor (62) that displays graphics or video clip images (eg, selected music). It is this monitor that is used to play the album cover). In order to play the audio information of the selected music, the device and possibly one or more servers may be provided with two buffer memories (56, 57) for the purpose to be described later, for example from Creative Labs Inc. SBP32AWE "Sound Blaster" A music synthesizer-type electronic circuit (5) that supports a large number of input sound sources while providing an output having a CD (compact disk) sound quality such as a card-type multimedia audio adapter with a built-in microprocessor. A speaker (54) for receiving a signal from the connected amplifier-tuner (53) is included. This circuit (5) has a role of expanding digital information arriving via the network. Similarly, the display means control circuit also includes two buffer memories (66, 67) for the purpose described below. The system is powered by a blown and temperature regulated 240 watt power supply. This power supply is protected from over-current and over-vibration. The equipment (8) and possibly one or more servers (9), via its input control circuit (3), Elo, including glass-coated panels using "advanced surface wave technology" and an AT-type bus controller. Touch Systems Inc. Manage the company's 14 inch (35.56 cm) "Intelli Touch" touch screen (33). The touch screen provides various selection information used by the client, as well as control and management check information used by the system administrator or owner, after being displayed on the screen of a video monitor (62) or television (61). Can be This touch screen is also used for maintenance applications in combination with an external keyboard (34) that can be connected through a interface circuit (3) to a system having a keyboard connector managed by a key lock (32). The input circuit (3) is provided with the system, for example: Mind Path Technologies Inc., a transmitter with 15 control keys for a microprocessor system and 8 control keys as a projection device. An infrared remote controller from Mind Path Technologies Inc .; Interface with a remote control assembly (31) consisting of an infrared receiver with a serial adapter from the company. National Rejectors Inc. Each device of the network comprising the company's subscription payment system (35) is also connected to the input interface circuit (3). It is also possible to use a completely different device that can accept any payment method, such as coins, bills, medals, chip magnetic cards, or a combination of a plurality of payment means. A steel chassis or bed with customizable outer packing is further provided to house the system. In addition to these elements, a wired or wireless microphone (55) can be connected to the audio controller (5) of each device, thereby connecting the device to a high-power general contact information system or, in some cases, a karaoke machine. Can be changed to The system can also use a wireless speaker system. The remote control assembly (31) allows the administrator to access and control switches such as: a microphone on / off switch, a speaker mute switch, a volume control switch, and a cancel switch for the selected song being played. . These two buffers are connected to the audio controller circuit (5) so that the buffers (56, 57) can alternately store information corresponding to a quarter-second sound. Similarly, the two buffers (66, 67) are connected to a video controller circuit (6) that can alternately store a tenth of a second of video. Finally, the input interface buffer (36) is connected to each input interface (3) of each device (8) or server (9). Operating software for each device (8) or server (9) of the system was created around tools and service libraries that are oriented widely in the audiovisual area of the multimedia environment. This library advantageously includes a high performance multitasking operating system that can effectively execute many code fragments concurrently. With this operation software, the operations performed on the display means and the sound reproduction means can be executed systematically and simultaneously without any conflict, and the remote communication link can be managed through the distribution network. In addition, the software is highly flexible. The digitized and compressed audiovisual data is stored in the storage means (21) of the server (9). Each selected song is available in two digitized formats, Hi-Fi quality or CD quality. The operation software of each device (8) is stored in the automatic power supply R / W static RAM of each device (8), while the operation software of the server (9) is stored in the hard disk (21) and stored in the RAM of the server. Can be loaded and used. It should be noted that the testers that are specific to the modules that make up the operating system run concurrently in an environment that uses a multitasking operating system. Thus, the flowchart shows a specific task to be performed by one module, and does not indicate a branch to a module that invalidates all tasks performed by other modules. The first module referred to in the SSM is an activation module. This module provides only one service. Thus, this module is automatically loaded when the equipment or server is powered up and directly enters the "running" mode of the RMM module. The RMM module is a module in an “operating” mode, which is an operation mode in which the device or server enters when the registration number of the device or server is validated. In this mode, the device (8) or the server (9) may for example:-touch the screen of the device (8), the control of the foreground session is transferred to the CBSM module in client selection and search mode,-TSM telecom It is ready to handle requests that can be triggered by various predefined events, such as a call request for a telecommunications network by a service module. The device (8) or server (9) remains in the "running" mode until one of the above-mentioned events occurs. The CBSM module is a client selection and search mode module. Access to this module is activated from the "running" mode when the client touches the screen. The display allows the user to visualize a menu prepared for digitized voice message support powerful search for guidance in song selection. The TSM module is a telecommunications service mode module between a network server and a central system managing a plurality of servers belonging to different networks. With this module, all management services available on the distribution network can be managed. All tasks specific to telecommunications are managed as background tasks. These tasks always use only the portion of the processing time remaining when the device or server finishes all its foreground tasks. Thus, when the device is occupied by one of the higher priority tasks, the telecommunications task automatically seeks to reduce the constraints on system resources and the processing time of the still available microprocessor. Try to recover. The SPMM module allows for the management of selected songs or videos of songs or videos that are queued by the system to play in the selected order. A multi-tasking operating system is an essential element for enabling many code fragments to be executed simultaneously and managing the priority between various tasks to be started. As shown in FIG. 4, the multi-task operating system includes a kernel including a priority determining module (11) between tasks, a task supervisor module (12), a hardware grouping module (13), and a process. The communication module (14) is mainly configured. Each module communicates with the application's programming interface (15) and database (16). There are as many programming interfaces as applications. For example, the module (15) comprises a first interface (153) for programming for the touch screen (33), a second interface (154) for programming for the keyboard (34), and a second interface (154) for programming for the payment device (35). Three interfaces (155), a fourth programming interface (156) for the audio control circuit (5), a fifth programming interface (157) for the video control circuit (6), and an information processing network control circuit (7). )) (158). At the time of purchase of the network kit, the programming interface of the network card is supplied with the card, and the network card is declared to the operating system as a hard disk of each audiovisual device (8) or as a peripheral device constituting a telecommunications modem card. It is important to note that Accordingly, each operating system of each device (8), upon selection, following a call for telecommunications procedures or hard disk access, enables each audiovisual device (8) to use the called resources by the server's network card. Start a new communication session. The five tasks arranged in descending order of priority are managed by the kernel of the operating system, and the first task (76) for video input / output has the highest priority and the second task at the second level. (75) relates to voice, third level third task (74) relates to telecommunications, fourth level fourth task (73) relates to interface, and fifth level fifth task (70) relates to management. These priorities are taken into account by the priority determination module (11) according to the appearance and disappearance of tasks. Thus, when a video task appears, other running tasks are suspended, this task is given priority, and all system resources are allocated to the video task. The video task (76) on the output side aims at alternately unloading the video file from the mass memory (21) into one of two buffers (66, 67), at which time the other buffer is used. (67 or 66) is used by the video controller circuit (6) for display after data expansion. On the input side, the video task (76) aims to transfer the data received in the telecommunications buffer (46) to the mass memory (21). Between the remote communication buffer (46) on the input side and the buffer (26) of the large capacity memory (21), there are also two buffers, the buffer (26) of the large capacity memory (21) and the voice controller circuit (5) on the output side. The same applies to any of the buffers (56, 57). Next, the task supervisor module (12) will be described with reference to FIG. This module performs a first test (761) in priority order to determine whether the video task is active, ie, whether any of the video buffers (66, 67) are empty. . If the answer is no, the task supervisor module determines whether the audio task is active, ie, whether any of the audio buffers (56, 57) are empty. The next test (751) is performed. If the answer is no, a third test (741) determines whether the communication task is active, ie, whether the buffer (46) is empty. If the answer is affirmative in one of the tests, the task supervisor module (12) queues the memory access request (13) in step (131), and in step (132) the large memory ( Perform this read or write request between 21) and the buffer corresponding to the active task, then re-loop to the first test. If the communication operation test (741) is affirmative, the supervisor (12) executes a test (742) to determine whether to read or write information in the memory. If so, a write or read request is submitted to the queue in step (131). If not, the supervisor determines in step (743) whether it is a transmission or a reception, and if so, in step (744), sends the information block to the central server. If so, the supervisor verifies in step (746) that the kernel buffer has not been accessed, and if so, sends a message to the central server in step (747) to agree to receive the data block. send. After receiving the block, a cyclic redundancy check CRC type error check (748) is performed. By sending a corresponding message to the central server indicating that the block with the given number has been rejected or granted, the block is rejected in step (740) in case of error, otherwise step (740) 749), and loop back to the original test. If no higher-level tasks are active, the supervisor processes the interface or administrative task in step (731 or 701). The detection of an active or ready task is performed by each controller circuit (2, 3, 4, 5, 6) of each hardware device connected to the central processing unit (1) as shown in FIG. Each test (from 721) on the combined hard disk hardware or software buffer (26), interface buffer (36), telecommunications buffer (46), audio buffer (56 and 57), video buffer (66 and 67) 761). The test (721) determines whether data is present in the buffer of the input / output memory of the disk, and the test (731) determines whether data is present in the hardware or software memory buffer of the client interface device. , Test (741) indicates if data is present in the hardware or software memory buffer of the telecommunications device, and test (751) indicates whether data is present in the audio hardware or software memory buffer. And the test (761) shows whether data is present in the hardware or software memory buffer of the video device. If there is data in one or more of these buffers, the supervisor (12) will provide one or more hard disk status buffers (821) corresponding to the hardware in logic state indicating operation, The status buffer (831), the remote communication status buffer (841), the audio status buffer (851), and the video status buffer (861) are positioned. If there is no data, the supervisor status buffer is returned to a value indicating inactivity at step (800). The operating states of the server (9) and the device (8) are maintained in the automatic power supply memory of the device (8) on the hard disk (21) of the server (9). The system records each event to be recorded immediately on a permanent resource (ressource de stockage permanent). Therefore, even if a power failure or equipment damage occurs, the system can be restarted from the exact same position where it was stopped. The events that cause the saving of the state in the operation are: deposit (addition of credit), addition of the song name to the queue, end of the selected song (change of the song currently being listened to). The file is in a machine format that can only be read by the processing unit and is no longer than 64 bytes. The number and types of active tasks are indicated to the supervisor (12) by executing the selected music management SPMM module whose flowchart is shown in FIG. The management performed by this module begins with a test (61) to determine if the selected song is waiting in the queue. Next, if the queuing test (61) determines that the selected song is waiting, the client selects the song title to listen to, and the song is stored in the system queue file on the hard disk. Automatically written in. Therefore, even when a power failure occurs, each selected song is never lost. The system plays (plays) the entire selected song and then deletes it from the queue file. When the entire selected song has been played, the selected song is deleted from the queue file and written into the system's statistics file along with the date and time of purchase and the date and time the song was played. Immediately after transferring the completed selected song to the statistics file, the system checks whether there is another selected song in the queue file. If there is another selected song, the system immediately starts playing the selected song. Processing continues with a test (65) to determine whether the selected song includes a scenario audio. If so, this scenario is registered in the task matrix of the supervisor (12) in step (651). If not, or after this registration, processing continues with a test (66) to determine whether the selected song contains a moving image. If so, the video scenario is registered in the task matrix of the supervisor (12) in step (661). If not, or after this registration, processing continues with a test (64) to determine whether the selected song contains a still graphic. If so, the graphic display scenario is registered in the task matrix of the supervisor (12) in step (641). If not, or after this registration, processing continues with a test (63) to determine whether the selected song includes an advertising scenario. If so, the scenario is registered in the task matrix of the supervisor (12) in step (631). In this way, the supervisor (12) notified of the opened task can simultaneously manage the progress of the task. A task management mode by assigning the highest priority to the video tasks, and the presence of a hardware or software buffer assigned to each task to temporarily store data, and a status buffer for each task And the communication between each device and the server via the information processing network makes it possible to increase the costly resources required for some tasks of the device (8), and also to increase the multitasking operating system. Having a single central processing unit (9). The base server (9) can manage a LAN with up to eight client jukeboxes. By adding appropriate peripherals, such as additional hard disks, the server can manage up to eight additional jukeboxes. To add more jukeboxes, a LAN environment can be created with multiple servers sharing tasks. In this way, an environment can be created that can manage any needs. A fully-equipped server has enough resources to manage a 16-piece jukebox. One server can support up to seven disks that can store songs as long as the songs have the necessary free space. 3.4125 Mbits of free space is required for audio and partial graphic works, and 39.568 Mbits of free space for audio and video works. Beyond these limitations, sometimes to meet the demands of facilities such as hotels with hundreds of rooms, RAID to store the network configuration with many servers to manage songs and / or jukeboxes It is possible to use large-capacity storage technologies such as. It is also possible to add additional telecommunications peripherals (41), such as a modem, to meet the additional demands in telecommunications of the external network. The network allows the server to perform its responsibilities to perform multiple tasks common to each jukebox in order to prevent work, information handling operations and equipment redundancy. The LAN also serves as an important link between all jukeboxes by establishing a link that can maintain data common to all jukeboxes and making it accessible from each jukebox. Common data maintained on the server is audiovisual works, usage and purchase statistics for each jukebox, or statistics about the audiovisual works. Since the telecommunications peripheral is centralized on the server (9), the jukebox or audiovisual device (8) does not have a telecommunications peripheral, but makes a request to the server (9), and the server Process preferentially. Also, the jukebox or audiovisual device does not have the necessary disk space to store the audiovisual work. This is because all the jukeboxes on the LAN are centralized on the server (9) in order to be able to share audiovisual works. The network's jukebox (8) requires little permanent storage space, since all information is centralized, realizing units without hard disks and reducing maintenance by eliminating the most fault-prone parts And not. The permanent memory area in the jukebox (8) without hard disk contains all the information and the operating programs necessary to establish a link with the server and start the jukebox operating system. This permanent memory is an EEPROM memory, a static memory bank held by a battery, and a card called a HARD CARD which is a static memory bank held by a battery and has a function of cloning a task of a hard disk. It can be. The operating system of the jukebox (8) verifies that the necessary resources are available before proceeding. To do this, the operating system manages the link state with the centralized peripheral and, if necessary, issues a request to the server to establish an appropriate link between the jukebox and the required peripheral. If the jukebox does not utilize telecommunications resources, for example, the server (9) provides an exclusive link to the jukebox. Once the link is established, the jukebox (8) can work as if the resource were its own. When the jukebox (8) has finished its work, it sends a request to the server to break the connection to the resource, so that the resource is available to other jukeboxes (8) in the network. The order and logic used to grant distribution and access to organized resources is managed by the network operating system resident on the server (9). Therefore, the switching device such as a hardware or software key allows the network user to make the server (9) transmit the same music to all the devices (8) on the network or to send different music to each device (8). Can be determined. In the latter case, access to the hard disk resources is performed by time sharing among the devices, and the buffers (56, 57; 66, 67) of the devices (8) are not interrupted when executing audio or video. While having sufficient capacity to wait for the next access. In addition, a multitasking operating system with a library containing a set of tools and services can be very significantly easier to operate because it is built into the storage means and the flexibility obtained is so high. it can. This makes it possible to create a multimedia environment by simultaneously and simply and effectively managing the reproduction of audio, the display of images and graphics, and the moving image. Furthermore, the cost of the network is greatly reduced since the audiovisual information is digitized and stored in the storage means. Similarly, by moving the hardware necessary for the remote communication function of each device (8) to a server on the network, the cost is greatly reduced and an information processing network having a data rate of 100 Mbit / sec is used. By doing so, at least eight devices can be used simultaneously. All of these devices can simultaneously play different moving images on each device. This would not have been possible with the ISDN network of WO 94/15416, where the data rate, which is no longer sufficient for moving pictures, is of the order of 1 Mbit / s. The same can be said for other data remote transmission lines. Any modifications possible by a person skilled in the art also form part of the present invention. Thus, it should be noted that if a buffer is a concern, the buffer may be physically present on the circuit to which it is allocated, or it may be created by software by reserving storage in system memory.
Claims (1)
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PCT/FR1994/001185 WO1996012255A1 (en) | 1994-10-12 | 1994-10-12 | Intelligent digital audiovisual playback system |
AT94/01185 | 1994-10-12 | ||
PCT/FR1995/001337 WO1996012260A1 (en) | 1994-10-12 | 1995-10-12 | Audiovisual distribution system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000134678A (en) * | 1998-07-22 | 2000-05-12 | Touchtunes Music Corp | Remote controller for intelligent digital audio visual reproduction system |
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