JPH09506227A - ディジタル・サービスのために可変長の許認制御を送受信するためのシステム及び方法 - Google Patents
ディジタル・サービスのために可変長の許認制御を送受信するためのシステム及び方法Info
- Publication number
- JPH09506227A JPH09506227A JP7515780A JP51578095A JPH09506227A JP H09506227 A JPH09506227 A JP H09506227A JP 7515780 A JP7515780 A JP 7515780A JP 51578095 A JP51578095 A JP 51578095A JP H09506227 A JPH09506227 A JP H09506227A
- Authority
- JP
- Japan
- Prior art keywords
- data
- receiver
- authorization
- service
- location
- 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
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/2041—Spot beam multiple access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/4508—Management of client data or end-user data
- H04N21/4524—Management of client data or end-user data involving the geographical location of the client
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management e.g. creating a master electronic programme guide from data received from the Internet and a Head-end or controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4627—Rights management associated to the content
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8355—Generation of protective data, e.g. certificates involving usage data, e.g. number of copies or viewings allowed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
- H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
- H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Databases & Information Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Time-Division Multiplex Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Radio Relay Systems (AREA)
- Television Systems (AREA)
- Communication Control (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.一連のフレームの各々に多重化された複数のサービスのディジタル・データ ・ストリームを受信し、かつユーザに対して少なくとも1つの許認されたストリ ームを提供するための通信システムの受信機であって、前記一連のフレームが複 数のセッションへ分けられ、各セッションがサービスを許認するのに必要な第1 の許認制御情報を含み、付加的な許認制御を提供する第2の許認制御情報が1つ 以上のセッションにわたって分配される受信機において、サービスを許認する装 置が、 受信した一連のフレームに含まれるサービスの選択に応答して、前記複数のセ ッションから選択されたサービスと対応する前記第1および第2の許認制御情報 を引出す引出し手段と、 前記選択されたサービスが前記の引出された第1および第2の制御許認情報に 基いて許認されるかどうかを決定する決定手段と、 前記選択されたサービスが許認されるべきと決定される時、前記決定手段に応 答して、ユーザに対する前記選択されたサービスの提供を可能にする可能化手段 と、 を含む装置。 2.前記第2の許認制御情報が複数の許認モードを含み、前記決定手段が更に、 選択されたサービスが前記許認モードの各々に基いて許認されるかどうかを決定 する請求項1記載の装置。 3.前記第2の許認制御情報が許認コマンドと、許認されたモードの1つに固有 の許認データとを含む請求項2記載の装置。 4.前記許認コマンドと許認データとが円形のブラックアウト許認モードを指定 する請求項3記載の装置。 5.前記許認コマンドと許認データとが円形スポットライト許認モードを指定す る請求項3記載の装置。 6.前記許認コマンドと許認データとがグループ・ブラックアウト許認モードを 指定する請求項3記載の装置。 7.前記許認コマンドと許認データとがグループ・スポットライト許認モードを 指定する請求項3記載の装置。 8.前記許認コマンドと許認データとが階層許認モードを指定する請求項3記載 の装置。 9.前記決定手段が、各々が第1と第2のデータのいずれか一方と対応する値の ストリングを含み、 前記許認データが、前記値のストリングの値を指示する階層ポインタを含み、 これにより階層ポインタにより指示された値が第1の状態と対応するならば前記 選択されたサービスが許認され、前記階層ポインタにより指示された値が第2の 状態と対応するならばサービスが許認されない 請求項8記載の装置。 10.前記決定手段が、各々が第1と第2の状態のいずれか一方と対応する値の ストリングを含み、 前記許認データが、各々が前記値のストリングにおける値を指示する複数の階 層ポインタを含み、これにより複数の階層ポインタにより指示された値が第1の 状態と対応するならば前記選択されたサービスが許認され、前記階層ポインタの 各々が第2の状態と対応する値を指示するならば前記選択されたサービスが許認 されない 請求項8記載の装置。 11.前記許認データが長さにおいて可変である請求項3記載の装置。 12.前記可変長さの許認データが、「開始」許認コマンドにより先行されかつ 「停止」許認コマンドが後に続き、複数のフレームにわたって分けられる請求項 11記載の装置。 13.前記一連のフレームの各々が、パケット・データと中間速度データと高速 データとを含み、前記第1および第2の制御許認情報が前記パケット・データに 含まれ、複数のサービスのディジタル・データ・ストリームが少なくとも前記中 間速度データと前記高速データに含まれる請求項1記載の装置。 14.前記第2の制御許認情報がパケット・データの別個のパケットを含む請求 項13記載の装置。 15.前記別個のパケットが固定長さである請求項14記載の装置。 16.前記可能化手段が、各フレームにおいて選択されたサービスの場所に関す る場所情報を提供することにより、受信機が各フレームから選択されたサービス を引出すことを可能にする手段を含む請求項1記載の装置。 17.前記可能化手段が、前記選択されたサービスと対応する解読情報を提供す ることにより、受信機が各フレームにおいて前記選択されたサービスを解読する ことを可能にする手段を含む請求項1記載の装置。 18.前記可能化手段が、 各フレームにおいて前記選択されたサービスの場所に関する場所情報を提供す ることにより、受信機が各フレームから前記選択されたサービスを引出すことを 可能にする手段と、 前記選択されたサービスと対応する解読情報を提供することにより、受信機が 各フレームにおいて前記選択されたサービスを解読することを可能にする手段と を含む請求項1記載の装置。 19.前記第2の許認制御情報が、中心点の場所と該中心点からの半径方向距離 とを含む円形領域を規定する情報を含み、前記決定手段が 受信機の場所を規定する情報と、地理的歪み係数とを格納する記憶手段と、 受信機の場所が中心点、半径方向距離、受信機の場所、および地理的歪み係数 に基いて円形領域内にあるかどうかを計算する計算手段と を含み、 前記決定手段が、前記選択されたサービスが受信機の場所が円形領域内にある かどうかに基いて許認されるかどうかを決定する 請求項1記載の装置。 20.前記第2の許認制御情報がブラックアウトの円形領域を規定し、受信機の 場所が該ブラックアウトの円形領域の内側にあると計算されるならば、前記決定 手段が、選択されたチャンネルが許認されないことを決定する請求項19記載の 装置。 21.前記第2の許認制御情報がスポットライトの円形領域を規定し、受信機の 場所が前記スポットライトの円形領域の外側にあると計算されるならば、前記決 定手段が、選択されたチャンネルが許認されないことを決定する請求項19記載 の装置。 22.前記計算手段が、 r2>cos2(B)*(A−X)2+(B−Y)2ならば、受信機の場所が前記 円形領域内にあることを計算する請求項19記載の装置。 但し、rは半径方向距離、(A,B)は受信機の場所を規定し、(X,Y)は中 心点を規定し、cos2(B)は地理的歪み係数である。 23.受信されたフレーム・シーケンスに含まれるサービスを選択する選択手段 を更に含む請求項1記載の装置。 24.通信システムにおける受信機におけるサービスの許認を制御する方法にお いて、 受信機の場所と地理的歪み係数とを規定する情報を受信するステップと、 中心点の場所と該中心点からの半径方向距離とを含む円形領域を規定する情報 を受信するステップと、 受信機の場所、地理的歪み係数、中心点および半径方向距離を用いて、受信機 が前記円形領域内に配置されるかどうかを決定するステップと、 受信機が円形領域内に配置されると決定されるかどうかに従ってサービスを許 認するステップと を含む方法。 25.受信機が前記円形領域の外に配置される場合にのみサービスが許認される 請求項24記載の方法。 26.受信機が前記円形領域の内側に配置されなければサービスが許認されない 請求項24記載の方法。 27.受信機が、 r2>cos2(B)*(A−X)2+(B−Y)2ならば、 前記円形領域内に配置されるものと決定される請求項24記載の方法。 但し、rは半径方向距離、(A,B)は受信機の場所を規定し、(X,Y)は中 心点を規定し、cos2(B)は地理的歪み係数である。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/160,830 | 1993-12-03 | ||
| US08/160,830 US5506904A (en) | 1993-08-04 | 1993-12-03 | System and method for transmitting and receiving variable length authorization control for digital services |
| PCT/US1994/013844 WO1995015634A1 (en) | 1993-12-03 | 1994-12-02 | System and method for transmitting and receiving variable length authorization control for digital services |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09506227A true JPH09506227A (ja) | 1997-06-17 |
| JP3537439B2 JP3537439B2 (ja) | 2004-06-14 |
Family
ID=22578640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51578095A Expired - Lifetime JP3537439B2 (ja) | 1993-12-03 | 1994-12-02 | ディジタル・サービスのために可変長の許認制御を送受信するためのシステム及び方法 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5506904A (ja) |
| EP (1) | EP0732017B1 (ja) |
| JP (1) | JP3537439B2 (ja) |
| KR (1) | KR960706727A (ja) |
| AU (1) | AU680090B2 (ja) |
| BR (1) | BR9408235A (ja) |
| MA (1) | MA23386A1 (ja) |
| WO (1) | WO1995015634A1 (ja) |
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| JP2004528616A (ja) * | 2000-10-30 | 2004-09-16 | ゲオコデックス・エルエルシー | 位置識別属性を使用してデジタル情報へのアクセスを制御するためのシステムおよび方法 |
| US7660418B2 (en) | 2000-10-30 | 2010-02-09 | Geocodex Llc | Cryptographic system and method for geolocking and securing digital information |
| US8472627B2 (en) | 2000-10-30 | 2013-06-25 | Geocodex Llc | System and method for delivering encrypted information in a communication network using location indentity and key tables |
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| US5652795A (en) * | 1994-11-14 | 1997-07-29 | Hughes Electronics | Method and apparatus for an adapter card providing conditional access in a communication system |
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- 1993-12-03 US US08/160,830 patent/US5506904A/en not_active Expired - Lifetime
-
1994
- 1994-12-01 MA MA23713A patent/MA23386A1/fr unknown
- 1994-12-02 EP EP95904793A patent/EP0732017B1/en not_active Expired - Lifetime
- 1994-12-02 WO PCT/US1994/013844 patent/WO1995015634A1/en not_active Ceased
- 1994-12-02 BR BR9408235A patent/BR9408235A/pt not_active Application Discontinuation
- 1994-12-02 JP JP51578095A patent/JP3537439B2/ja not_active Expired - Lifetime
- 1994-12-02 AU AU13340/95A patent/AU680090B2/en not_active Ceased
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1996
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004528616A (ja) * | 2000-10-30 | 2004-09-16 | ゲオコデックス・エルエルシー | 位置識別属性を使用してデジタル情報へのアクセスを制御するためのシステムおよび方法 |
| US7660418B2 (en) | 2000-10-30 | 2010-02-09 | Geocodex Llc | Cryptographic system and method for geolocking and securing digital information |
| US8472627B2 (en) | 2000-10-30 | 2013-06-25 | Geocodex Llc | System and method for delivering encrypted information in a communication network using location indentity and key tables |
Also Published As
| Publication number | Publication date |
|---|---|
| MA23386A1 (fr) | 1995-07-01 |
| KR960706727A (ko) | 1996-12-09 |
| AU1334095A (en) | 1995-06-19 |
| AU680090B2 (en) | 1997-07-17 |
| EP0732017A1 (en) | 1996-09-18 |
| WO1995015634A1 (en) | 1995-06-08 |
| BR9408235A (pt) | 1997-08-26 |
| US5506904A (en) | 1996-04-09 |
| EP0732017A4 (en) | 2002-10-25 |
| JP3537439B2 (ja) | 2004-06-14 |
| EP0732017B1 (en) | 2008-03-12 |
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