DE3125767A1
(de)
*
|
1980-07-05 |
1982-06-09 |
Communications Patents Ltd., London |
Kabelfernsehsystem
|
AU547877B2
(en)
*
|
1980-09-26 |
1985-11-07 |
B. Lofberg |
Method for processing an information signal and means for carrying out the method
|
AU562395B2
(en)
*
|
1981-09-10 |
1987-06-11 |
Sony Corporation |
Subscription television system
|
US4965825A
(en)
|
1981-11-03 |
1990-10-23 |
The Personalized Mass Media Corporation |
Signal processing apparatus and methods
|
US7831204B1
(en)
|
1981-11-03 |
2010-11-09 |
Personalized Media Communications, Llc |
Signal processing apparatus and methods
|
USRE47642E1
(en)
|
1981-11-03 |
2019-10-08 |
Personalized Media Communications LLC |
Signal processing apparatus and methods
|
USRE33189E
(en)
*
|
1981-11-19 |
1990-03-27 |
Communications Satellite Corporation |
Security system for SSTV encryption
|
US4484027A
(en)
*
|
1981-11-19 |
1984-11-20 |
Communications Satellite Corporation |
Security system for SSTV encryption
|
CA1186028A
(en)
*
|
1982-06-23 |
1985-04-23 |
Microdesign Limited |
Method and apparatus for scrambling and unscrambling data streams using encryption and decryption
|
US4531020A
(en)
*
|
1982-07-23 |
1985-07-23 |
Oak Industries Inc. |
Multi-layer encryption system for the broadcast of encrypted information
|
CA1253616A
(en)
*
|
1982-07-29 |
1989-05-02 |
Robert W. Field |
Secure coding and decoding system and method for television program signals
|
US4740912A
(en)
*
|
1982-08-02 |
1988-04-26 |
Whitaker Ranald O |
Quinews-electronic replacement for the newspaper
|
JPS59112783A
(ja)
*
|
1982-12-20 |
1984-06-29 |
Sony Corp |
デジタルデ−タ受信機
|
GB2140656A
(en)
*
|
1983-05-13 |
1984-11-28 |
Philips Electronic Associated |
Television transmission system
|
US4613901A
(en)
*
|
1983-05-27 |
1986-09-23 |
M/A-Com Linkabit, Inc. |
Signal encryption and distribution system for controlling scrambling and selective remote descrambling of television signals
|
US4608456A
(en)
*
|
1983-05-27 |
1986-08-26 |
M/A-Com Linkabit, Inc. |
Digital audio scrambling system with error conditioning
|
GB2141905A
(en)
*
|
1983-06-20 |
1985-01-03 |
Philips Electronic Associated |
Secure transmission system
|
US4642688A
(en)
*
|
1983-06-24 |
1987-02-10 |
Scientific Atlanta, Inc. |
Method and apparatus for creating encrypted and decrypted television signals
|
US4554584B1
(en)
*
|
1983-07-08 |
1998-04-07 |
Browne Lee H |
Video and audio blanking system
|
EP0151147B1
(en)
*
|
1983-07-22 |
1988-04-20 |
Independent Broadcasting Authority |
Security system for television signal encryption
|
AU559311B2
(en)
*
|
1984-02-15 |
1987-03-05 |
Matsushita Electric Industrial Co., Ltd. |
Pay tv charge/time data display
|
US4890322A
(en)
*
|
1984-02-23 |
1989-12-26 |
American Telephone And Telegraph Company |
Method and apparatus for subscription broadcast
|
US4634808A
(en)
*
|
1984-03-15 |
1987-01-06 |
M/A-Com Government Systems, Inc. |
Descrambler subscriber key production system utilizing key seeds stored in descrambler
|
FR2563402B1
(fr)
*
|
1984-04-19 |
1987-08-28 |
Loire Electronique |
Procede de codage et de decodage pour un systeme de television a peage
|
US4905280A
(en)
*
|
1984-10-12 |
1990-02-27 |
Wiedemer John D |
High security videotext and videogame system
|
US4696034A
(en)
*
|
1984-10-12 |
1987-09-22 |
Signal Security Technologies |
High security pay television system
|
US4907273A
(en)
*
|
1984-10-12 |
1990-03-06 |
Wiedemer John D |
High security pay television system
|
US4908834A
(en)
*
|
1984-10-12 |
1990-03-13 |
Wiedemer John D |
High security pay television system
|
US5036537A
(en)
*
|
1984-11-19 |
1991-07-30 |
General Instrument Corp. |
Geographic black-out method for direct broadcast satellite system
|
US4868866A
(en)
*
|
1984-12-28 |
1989-09-19 |
Mcgraw-Hill Inc. |
Broadcast data distribution system
|
US4815129A
(en)
*
|
1985-01-02 |
1989-03-21 |
General Instrument Corp. |
Video encryption system
|
FR2583946B1
(fr)
*
|
1985-06-24 |
1988-07-29 |
France Etat |
Systeme de television a controle d'acces utilisant une cle electronique variable
|
FR2604021B1
(fr)
*
|
1986-09-17 |
1988-10-28 |
Commissariat Energie Atomique |
Procede de realisation de tetes magnetiques en couches minces et a structure planaire et tete obtenue par ce procede
|
US4771429A
(en)
*
|
1986-09-18 |
1988-09-13 |
Abbott Laboratories |
Circuit combining functions of cyclic redundancy check code and pseudo-random number generators
|
US4849817A
(en)
*
|
1987-02-19 |
1989-07-18 |
Isix, Inc. |
Video system, method and apparatus for incorporating audio or data in video scan intervals
|
GB8704850D0
(en)
*
|
1987-03-02 |
1987-04-08 |
Mars Inc |
Access systems
|
US4771458A
(en)
*
|
1987-03-12 |
1988-09-13 |
Zenith Electronics Corporation |
Secure data packet transmission system and method
|
US4876718A
(en)
*
|
1987-03-12 |
1989-10-24 |
Zenith Electronics Corporation |
Secure data packet transmission system and method
|
US4944006A
(en)
*
|
1987-03-12 |
1990-07-24 |
Zenith Electronics Corporation |
Secure data packet transmission system and method
|
FR2621204B1
(fr)
*
|
1987-09-24 |
1994-07-01 |
Aeta |
Procede et dispositif de cryptage/decryptage analogique d'un signal video analogique
|
FR2632148B1
(fr)
*
|
1988-05-27 |
1990-08-10 |
France Etat |
Procede de diffusion et de reception de messages de gestion de titres d'acces
|
US4937865A
(en)
*
|
1988-11-15 |
1990-06-26 |
Syrcuits International Inc. |
Cable TV channel security system having remotely addressable traps
|
FR2643529B1
(fr)
*
|
1989-02-22 |
1991-06-07 |
Kudelski Sa Fabr Enregistr Nag |
Systeme de television a peage utilisant une carte a memoire associee a un decodeur
|
US5140420A
(en)
*
|
1990-10-05 |
1992-08-18 |
General Electric Company |
Information in vertical blanking interval of video sync signal
|
JPH03179841A
(ja)
*
|
1990-10-19 |
1991-08-05 |
Matsushita Electric Ind Co Ltd |
暗号デジタル放送受信装置
|
US6002720A
(en)
*
|
1991-01-07 |
1999-12-14 |
H. Lee Browne, D/B/A Greenwich Information Technologies Llc |
Audio and video transmission and receiving system
|
US5253275A
(en)
|
1991-01-07 |
1993-10-12 |
H. Lee Browne |
Audio and video transmission and receiving system
|
EP0496459A1
(en)
*
|
1991-01-18 |
1992-07-29 |
THOMSON multimedia |
Method and apparatus for access control and/or identification
|
US5642418A
(en)
*
|
1995-02-21 |
1997-06-24 |
Bell Atlantic Network Services, Inc. |
Satellite television system and method
|
DE19604691A1
(de)
*
|
1996-02-09 |
1997-08-14 |
Sel Alcatel Ag |
Chip-Karte, Verfahren und System zur Nutzung von kostenpflichtigen Diensten
|
US6216263B1
(en)
|
1998-04-24 |
2001-04-10 |
Soundview Technologies Incorporated |
Receiver apparatus and method for providing conditional access to received televison programs
|
US6820203B1
(en)
*
|
1999-04-07 |
2004-11-16 |
Sony Corporation |
Security unit for use in memory card
|
GB0005878D0
(en)
*
|
2000-03-10 |
2000-05-03 |
British Broadcasting Corp |
Method and apparatus for broadcast signal recording
|
US9107030B2
(en)
|
2000-12-13 |
2015-08-11 |
Thomas E. Coverstone |
Communication system for sending advertisements based on location determination and previously specified user selections
|
US7239705B2
(en)
*
|
2003-12-10 |
2007-07-03 |
Motorola Inc. |
Apparatus and method for broadcast services transmission and reception
|