GB8625487D0 - Decoding transmitted scrambled signals - Google Patents

Decoding transmitted scrambled signals

Info

Publication number: GB8625487D0
Authority: GB; United Kingdom
Prior art keywords: scrambled signals; decoding transmitted; transmitted scrambled; decoding; signals
Prior art date: 1986-08-13
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

GB868625487A

Other versions

GB2193867A (en

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Philips Electronics UK Ltd

Original Assignee

Philips Electronic and Associated Industries Ltd

Priority date (The priority date 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 date listed.)

1986-08-13

Filing date

1986-10-24

Publication date

1986-11-26

1986-10-24 Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd

1986-11-26 Publication of GB8625487D0 publication Critical patent/GB8625487D0/en

1987-07-29 Priority to US07/079,541 priority Critical patent/US4937866A/en

1987-08-06 Priority to EP87201500A priority patent/EP0256596B1/en

1987-08-06 Priority to DE3789178T priority patent/DE3789178T2/en

1987-08-10 Priority to FI873461A priority patent/FI83828C/en

1987-08-11 Priority to JP62199245A priority patent/JPH0793621B2/en

1988-02-17 Publication of GB2193867A publication Critical patent/GB2193867A/en

Status Withdrawn legal-status Critical Current

Classifications

- 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
- 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
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
- 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
- H04N21/47211—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 pay-per-view 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
- H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
- H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
- 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

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Computer Security & Cryptography (AREA)
Databases & Information Systems (AREA)
Computer Networks & Wireless Communication (AREA)
Human Computer Interaction (AREA)
Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

GB08625487A 1986-08-13 1986-10-24 Decoding transmitted scrambled signals in a pay television system Withdrawn GB2193867A (en)

Priority Applications (5)

Application Number	Priority Date	Filing Date	Title
US07/079,541 US4937866A (en)	1986-08-13	1987-07-29	System for decoding transmitted scrambled signals
EP87201500A EP0256596B1 (en)	1986-08-13	1987-08-06	Decoding transmitted scrambled signals
DE3789178T DE3789178T2 (en)	1986-08-13	1987-08-06	Decoding transmitted veiled signals.
FI873461A FI83828C (en)	1986-08-13	1987-08-10	FOERFARANDE FOER DEKODNING AV SAENDA FOERVRAENGDA SIGNALER.
JP62199245A JPH0793621B2 (en)	1986-08-13	1987-08-11	System for decoding scrambled signal transmitted to receiver and receiver used in the system

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB868619737A GB8619737D0 (en)	1986-08-13	1986-08-13	Business management

Publications (2)

Publication Number	Publication Date
GB8625487D0 true GB8625487D0 (en)	1986-11-26
GB2193867A GB2193867A (en)	1988-02-17

Family

ID=10602671

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GB868619737A Pending GB8619737D0 (en)	1986-08-13	1986-08-13	Business management
GB08625487A Withdrawn GB2193867A (en)	1986-08-13	1986-10-24	Decoding transmitted scrambled signals in a pay television system

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
GB868619737A Pending GB8619737D0 (en)	1986-08-13	1986-08-13	Business management

Country Status (1)

Country	Link
GB (2)	GB8619737D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2237711A (en) *	1989-07-31	1991-05-08	Rank Brimar Ltd	Security of video monitors.
US5179446A (en) *	1991-10-22	1993-01-12	Samsung Electronics Co., Ltd.	Radio transmitting and receiving circuits of a video camera having a detached view finder
GB9407038D0 (en) *	1994-04-08	1994-06-01	Amstrad Plc	Method and apparatus for transmitting and receiving encrypted signals
UA69439C2 (en) *	1999-07-09	2004-09-15	Награвізьйон Са	System for performing purchase being influenced by the impulse for pay television

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4621285A (en) *	1980-12-10	1986-11-04	Jerrold Division, General Instrument Corporation	Protected television signal distribution system

1986
- 1986-08-13 GB GB868619737A patent/GB8619737D0/en active Pending
- 1986-10-24 GB GB08625487A patent/GB2193867A/en not_active Withdrawn

Also Published As

Publication number	Publication date
GB8619737D0 (en)	1986-09-24
GB2193867A (en)	1988-02-17

Publication	Publication Date	Title
EP0256596A3 (en)	1990-03-21	Decoding transmitted scrambled signals
KR960001515B1 (en)	1996-01-31	Digital signal transmitting system
GB8715629D0 (en)	1986-12-23	Video signals
GB8700795D0 (en)	1987-02-18	Processing scrambled video signal
DE3473552D1 (en)	1988-09-22	Scrambled television signals
GB8715654D0 (en)	1987-08-12	Transmitting & receiving television signal
GB2190270B (en)	1990-05-23	Television receiver
GB2187366B (en)	1989-11-08	Synchronizing signal decoding
GB8623821D0 (en)	1986-11-05	Teletext decoders
GB8621875D0 (en)	1986-11-05	Signal receiver
GB2214677B (en)	1991-06-26	Decoding transmitted scrambled signals
GB2198015B (en)	1990-09-12	Decoding apparatus
GB2198008B (en)	1990-12-19	Limiting component video signals
GB8625487D0 (en)	1986-11-26	Decoding transmitted scrambled signals
GB2191062B (en)	1988-05-25	Transmitting television signals
GB8529004D0 (en)	1986-01-02	Receiving scrambled signals
GB8617029D0 (en)	1986-12-17	Optical receiver
GB8624274D0 (en)	1986-11-12	Optical receiver
GB8629759D0 (en)	1987-01-21	Transmitting scrambled signals
GB8705715D0 (en)	1987-04-15	Transmitting scrambled signals
GB8630156D0 (en)	1987-01-28	Transmitting scrambled signals
GB8601970D0 (en)	1986-03-05	Television receiver
GB8718190D0 (en)	1987-09-09	Transmitting scrambled signals
GB2197770B (en)	1990-08-29	Teletext decoder
GB2190816B (en)	1989-12-20	Transmitting video timing signals

Legal Events

Date	Code	Title	Description
1988-11-09	WAP	Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)