GB2297453A - Method and apparatus for providing on demand services in a subscriber system - Google Patents
Method and apparatus for providing on demand services in a subscriber systemInfo
- Publication number
- GB2297453A GB2297453A GB9608628A GB9608628A GB2297453A GB 2297453 A GB2297453 A GB 2297453A GB 9608628 A GB9608628 A GB 9608628A GB 9608628 A GB9608628 A GB 9608628A GB 2297453 A GB2297453 A GB 2297453A
- Authority
- GB
- United Kingdom
- Prior art keywords
- demand
- services
- processor
- file server
- demand services
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
-
- 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
-
- 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
- H04N7/171—Systems operating in the amplitude domain of the television signal
- H04N7/1716—Systems operating in the amplitude domain of the television signal by inverting the polarity of active picture signal portions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17336—Handling of requests in head-ends
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Computer Security & Cryptography (AREA)
- Meter Arrangements (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Television Systems (AREA)
Abstract
An on-demand services features for the provision of video, audio, and data services for a subscription system of the CTV type, or the like. The system comprises a headend (10) coupled to a distribution network (12) having a multiplicity of subscribers (14). Standard service signals forming scheduled program channels are coupled commonly with on-demand service signals forming on-demand program channels in a frequency division multiplexed system. The demand services are provided by a demand service processor having an input processor (50) which stores programs for the demand services in a file server (52) or other massive memory (53) and a plurality of output processors (54) which retrieve the programs on demand and convert them to the demand service signals for application to the distribution network (12). In the illustrated embodiment the input processor (50) scrambles, digitizes and compresses real time or other stored analog programming for storage in the file server (52). On demand from a subscriber, an output processor (54) reads out a stored program from the file server as a digital data stream, decompresses it and converts it back to an analog scrambled signal. The analog scrambled signal is then modulated on a carrier by the output processor (54) to become an on-demand services signal. <IMAGE>
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/142,670 US5631693A (en) | 1993-10-25 | 1993-10-25 | Method and apparatus for providing on demand services in a subscriber system |
US08/142,586 US5426699A (en) | 1993-10-25 | 1993-10-25 | Method and apparatus for digitizing a scrambled analog video signal |
PCT/US1994/012183 WO1995012284A1 (en) | 1993-10-25 | 1994-10-24 | Method and apparatus for providing on demand services in a subscriber system |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9608628D0 GB9608628D0 (en) | 1996-07-03 |
GB2297453A true GB2297453A (en) | 1996-07-31 |
Family
ID=26840236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9608628A Withdrawn GB2297453A (en) | 1993-10-25 | 1994-10-24 | Method and apparatus for providing on demand services in a subscriber system |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU694459B2 (en) |
CA (1) | CA2175040A1 (en) |
GB (1) | GB2297453A (en) |
WO (1) | WO1995012284A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69622233T2 (en) * | 1995-09-05 | 2003-03-27 | Hitachi, Ltd. | Digital access control procedures |
FR2758425B1 (en) * | 1997-01-14 | 1999-03-19 | Telediffusion Fse | INTERFACING SYSTEM BETWEEN SERVERS OF A BENEFIT EDITOR, AND A SERVER FOR ACCESS TO A BROADCASTING NETWORK, AND BETWEEN THIS NETWORK AND A USER |
US6718552B1 (en) * | 1999-04-20 | 2004-04-06 | Diva Systems Corporation | Network bandwidth optimization by dynamic channel allocation |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4956862A (en) * | 1989-02-02 | 1990-09-11 | General Instrument Corporation | Method of providing sound privacy system compatible with mono and btsc stereo audio |
US5091938A (en) * | 1990-08-06 | 1992-02-25 | Nec Home Electronics, Ltd. | System and method for transmitting entertainment information to authorized ones of plural receivers |
US5130792A (en) * | 1990-02-01 | 1992-07-14 | Usa Video Inc. | Store and forward video system |
US5175618A (en) * | 1990-10-31 | 1992-12-29 | Victor Company Of Japan, Ltd. | Compression method for interlace moving image signals |
US5285497A (en) * | 1993-04-01 | 1994-02-08 | Scientific Atlanta | Methods and apparatus for scrambling and unscrambling compressed data streams |
-
1994
- 1994-10-24 GB GB9608628A patent/GB2297453A/en not_active Withdrawn
- 1994-10-24 WO PCT/US1994/012183 patent/WO1995012284A1/en active Application Filing
- 1994-10-24 CA CA002175040A patent/CA2175040A1/en not_active Abandoned
- 1994-10-24 AU AU80893/94A patent/AU694459B2/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4956862A (en) * | 1989-02-02 | 1990-09-11 | General Instrument Corporation | Method of providing sound privacy system compatible with mono and btsc stereo audio |
US5130792A (en) * | 1990-02-01 | 1992-07-14 | Usa Video Inc. | Store and forward video system |
US5091938A (en) * | 1990-08-06 | 1992-02-25 | Nec Home Electronics, Ltd. | System and method for transmitting entertainment information to authorized ones of plural receivers |
US5091938B1 (en) * | 1990-08-06 | 1997-02-04 | Nippon Denki Home Electronics | Digital data cryptographic system |
US5175618A (en) * | 1990-10-31 | 1992-12-29 | Victor Company Of Japan, Ltd. | Compression method for interlace moving image signals |
US5285497A (en) * | 1993-04-01 | 1994-02-08 | Scientific Atlanta | Methods and apparatus for scrambling and unscrambling compressed data streams |
Also Published As
Publication number | Publication date |
---|---|
AU8089394A (en) | 1995-05-22 |
GB9608628D0 (en) | 1996-07-03 |
AU694459B2 (en) | 1998-07-23 |
WO1995012284A1 (en) | 1995-05-04 |
CA2175040A1 (en) | 1995-05-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |