ATE207278T1 - Mehrkanal-fernsehsignal ver- und entschlüsselungssystem und -verfahren - Google Patents
Mehrkanal-fernsehsignal ver- und entschlüsselungssystem und -verfahrenInfo
- Publication number
- ATE207278T1 ATE207278T1 AT93903401T AT93903401T ATE207278T1 AT E207278 T1 ATE207278 T1 AT E207278T1 AT 93903401 T AT93903401 T AT 93903401T AT 93903401 T AT93903401 T AT 93903401T AT E207278 T1 ATE207278 T1 AT E207278T1
- Authority
- AT
- Austria
- Prior art keywords
- signals
- television signal
- description system
- quadrature
- signal encryption
- Prior art date
Links
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
-
- 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
-
- 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
- H04N7/169—Systems operating in the time domain of the television signal
-
- 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
- H04N7/1713—Systems operating in the amplitude domain of the television signal by modifying synchronisation signals
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Television Systems (AREA)
- Details Of Television Systems (AREA)
- Time-Division Multiplex Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81875292A | 1992-01-08 | 1992-01-08 | |
PCT/US1993/000148 WO1993014597A1 (en) | 1992-01-08 | 1993-01-07 | Multichannel television signal scrambling and descrambling system and method |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE207278T1 true ATE207278T1 (de) | 2001-11-15 |
Family
ID=25226320
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT01104853T ATE292356T1 (de) | 1992-01-08 | 1993-01-07 | Verfahren und gerät zur erzeugung eines mehrkanalsignal |
AT93903401T ATE207278T1 (de) | 1992-01-08 | 1993-01-07 | Mehrkanal-fernsehsignal ver- und entschlüsselungssystem und -verfahren |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT01104853T ATE292356T1 (de) | 1992-01-08 | 1993-01-07 | Verfahren und gerät zur erzeugung eines mehrkanalsignal |
Country Status (8)
Country | Link |
---|---|
US (7) | US5430799A (de) |
EP (3) | EP1115248B1 (de) |
JP (2) | JPH07503111A (de) |
KR (1) | KR100269004B1 (de) |
AT (2) | ATE292356T1 (de) |
AU (1) | AU693766B2 (de) |
DE (2) | DE69333787T2 (de) |
WO (1) | WO1993014597A1 (de) |
Families Citing this family (101)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5682426A (en) * | 1993-07-12 | 1997-10-28 | California Amplifier | Subscriber site method and apparatus for decoding and selective interdiction of television channels |
IL106796A (en) * | 1993-08-25 | 1997-11-20 | Algorithmic Res Ltd | Broadcast encryption |
JP3328046B2 (ja) * | 1994-02-16 | 2002-09-24 | 富士通株式会社 | 情報受信システム |
DE69516822D1 (de) * | 1994-07-11 | 2000-06-15 | California Amplifier Camarillo | Ver- und entschlüsselungsverfahren und -gerät für mehrkanalfernsehsystem |
US6334219B1 (en) | 1994-09-26 | 2001-12-25 | Adc Telecommunications Inc. | Channel selection for a hybrid fiber coax network |
JPH08263438A (ja) * | 1994-11-23 | 1996-10-11 | Xerox Corp | ディジタルワークの配給及び使用制御システム並びにディジタルワークへのアクセス制御方法 |
US6963859B2 (en) | 1994-11-23 | 2005-11-08 | Contentguard Holdings, Inc. | Content rendering repository |
US7280564B1 (en) | 1995-02-06 | 2007-10-09 | Adc Telecommunications, Inc. | Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing |
USRE42236E1 (en) | 1995-02-06 | 2011-03-22 | Adc Telecommunications, Inc. | Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing |
US5764094A (en) * | 1995-06-02 | 1998-06-09 | Matsushita Electric Industrial Co., Ltd. | Level shift circuit for analog signal and signal waveform generator including the same |
AP896A (en) * | 1995-07-11 | 2000-11-17 | California Amplifier | Subscriber site method and apparatus for decoding and selective interdiction of television channels. |
US5978480A (en) * | 1996-08-30 | 1999-11-02 | Vtech Communications, Ltd. | System for scrambling and descrambling video signals by altering synchronization patterns |
US6020189A (en) * | 1996-08-30 | 2000-02-01 | The Johns Hopkins University School Of Medicine | Fibroblast growth factor homologous factors (FHFs) and methods of use |
JP3671992B2 (ja) * | 1996-10-28 | 2005-07-13 | ソニー株式会社 | 映像信号受信装置および映像信号受信方法 |
IL122978A0 (en) * | 1997-02-20 | 1998-08-16 | Motorola Inc | Broadband interactive media |
US6195090B1 (en) | 1997-02-28 | 2001-02-27 | Riggins, Iii A. Stephen | Interactive sporting-event monitoring system |
US6233684B1 (en) * | 1997-02-28 | 2001-05-15 | Contenaguard Holdings, Inc. | System for controlling the distribution and use of rendered digital works through watermaking |
EP1074967A4 (de) * | 1999-02-19 | 2010-12-15 | Panasonic Corp | Bildsignal-verarbeitungs-vorrichtung |
US6697489B1 (en) * | 1999-03-30 | 2004-02-24 | Sony Corporation | Method and apparatus for securing control words |
US7730300B2 (en) | 1999-03-30 | 2010-06-01 | Sony Corporation | Method and apparatus for protecting the transfer of data |
US7039614B1 (en) | 1999-11-09 | 2006-05-02 | Sony Corporation | Method for simulcrypting scrambled data to a plurality of conditional access devices |
US6724178B1 (en) * | 1999-12-15 | 2004-04-20 | Broadband Innovations, Inc. | Measuring composite distortion using a coherent multicarrier signal generator |
US7225164B1 (en) | 2000-02-15 | 2007-05-29 | Sony Corporation | Method and apparatus for implementing revocation in broadcast networks |
US20030053927A1 (en) * | 2000-03-31 | 2003-03-20 | Dober Chemical Corporation | Controlled Rellease of oxygen scavengers in cooling systems |
US20040205812A1 (en) * | 2000-06-22 | 2004-10-14 | Candelore Brant L. | Method and apparatus for routing program data in a program viewing unit |
US7743259B2 (en) * | 2000-08-28 | 2010-06-22 | Contentguard Holdings, Inc. | System and method for digital rights management using a standard rendering engine |
US7269735B2 (en) * | 2000-08-28 | 2007-09-11 | Contentgaurd Holdings, Inc. | Instance specific digital watermarks |
US20060253330A1 (en) * | 2000-10-12 | 2006-11-09 | Maggio Frank S | Method and system for automatically substituting media content |
US7343324B2 (en) * | 2000-11-03 | 2008-03-11 | Contentguard Holdings Inc. | Method, system, and computer readable medium for automatically publishing content |
US6912294B2 (en) * | 2000-12-29 | 2005-06-28 | Contentguard Holdings, Inc. | Multi-stage watermarking process and system |
US7774279B2 (en) * | 2001-05-31 | 2010-08-10 | Contentguard Holdings, Inc. | Rights offering and granting |
US6754642B2 (en) * | 2001-05-31 | 2004-06-22 | Contentguard Holdings, Inc. | Method and apparatus for dynamically assigning usage rights to digital works |
US8069116B2 (en) * | 2001-01-17 | 2011-11-29 | Contentguard Holdings, Inc. | System and method for supplying and managing usage rights associated with an item repository |
US20040039704A1 (en) * | 2001-01-17 | 2004-02-26 | Contentguard Holdings, Inc. | System and method for supplying and managing usage rights of users and suppliers of items |
US7028009B2 (en) * | 2001-01-17 | 2006-04-11 | Contentguardiholdings, Inc. | Method and apparatus for distributing enforceable property rights |
US8275709B2 (en) * | 2001-05-31 | 2012-09-25 | Contentguard Holdings, Inc. | Digital rights management of content when content is a future live event |
US8001053B2 (en) * | 2001-05-31 | 2011-08-16 | Contentguard Holdings, Inc. | System and method for rights offering and granting using shared state variables |
US7222104B2 (en) * | 2001-05-31 | 2007-05-22 | Contentguard Holdings, Inc. | Method and apparatus for transferring usage rights and digital work having transferrable usage rights |
US6895503B2 (en) * | 2001-05-31 | 2005-05-17 | Contentguard Holdings, Inc. | Method and apparatus for hierarchical assignment of rights to documents and documents having such rights |
US7725401B2 (en) | 2001-05-31 | 2010-05-25 | Contentguard Holdings, Inc. | Method and apparatus for establishing usage rights for digital content to be created in the future |
US8275716B2 (en) | 2001-05-31 | 2012-09-25 | Contentguard Holdings, Inc. | Method and system for subscription digital rights management |
US20030009424A1 (en) * | 2001-05-31 | 2003-01-09 | Contentguard Holdings, Inc. | Method for managing access and use of resources by verifying conditions and conditions for use therewith |
US8099364B2 (en) * | 2001-05-31 | 2012-01-17 | Contentguard Holdings, Inc. | Digital rights management of content when content is a future live event |
US6876984B2 (en) | 2001-05-31 | 2005-04-05 | Contentguard Holdings, Inc. | Method and apparatus for establishing usage rights for digital content to be created in the future |
US7139398B2 (en) * | 2001-06-06 | 2006-11-21 | Sony Corporation | Time division partial encryption |
US7747853B2 (en) | 2001-06-06 | 2010-06-29 | Sony Corporation | IP delivery of secure digital content |
US7895616B2 (en) | 2001-06-06 | 2011-02-22 | Sony Corporation | Reconstitution of program streams split across multiple packet identifiers |
US20030140003A1 (en) * | 2001-06-07 | 2003-07-24 | Xin Wang | Method and apparatus managing the transfer of rights |
US7774280B2 (en) | 2001-06-07 | 2010-08-10 | Contentguard Holdings, Inc. | System and method for managing transfer of rights using shared state variables |
KR20030096250A (ko) * | 2001-06-07 | 2003-12-24 | 콘텐트가드 홀딩즈 인코포레이티드 | 디지털 권리 관리시스템에서 다중 신뢰구역들을 지원하기위한 방법 및 장치 |
US7974923B2 (en) * | 2001-11-20 | 2011-07-05 | Contentguard Holdings, Inc. | Extensible rights expression processing system |
MXPA04004681A (es) * | 2001-11-20 | 2004-09-10 | Contentguard Holdings Inc | Sistema de procesamiento de expresion de derechos extensible. |
US7840488B2 (en) * | 2001-11-20 | 2010-11-23 | Contentguard Holdings, Inc. | System and method for granting access to an item or permission to use an item based on configurable conditions |
US7765567B2 (en) | 2002-01-02 | 2010-07-27 | Sony Corporation | Content replacement by PID mapping |
US7039938B2 (en) * | 2002-01-02 | 2006-05-02 | Sony Corporation | Selective encryption for video on demand |
US7292691B2 (en) | 2002-01-02 | 2007-11-06 | Sony Corporation | Progressive video refresh slice detection |
US7155012B2 (en) * | 2002-01-02 | 2006-12-26 | Sony Corporation | Slice mask and moat pattern partial encryption |
US7218738B2 (en) * | 2002-01-02 | 2007-05-15 | Sony Corporation | Encryption and content control in a digital broadcast system |
US7215770B2 (en) * | 2002-01-02 | 2007-05-08 | Sony Corporation | System and method for partially encrypted multimedia stream |
US7292690B2 (en) | 2002-01-02 | 2007-11-06 | Sony Corporation | Video scene change detection |
US7242773B2 (en) * | 2002-09-09 | 2007-07-10 | Sony Corporation | Multiple partial encryption using retuning |
US7823174B2 (en) | 2002-01-02 | 2010-10-26 | Sony Corporation | Macro-block based content replacement by PID mapping |
US20030229593A1 (en) * | 2002-03-14 | 2003-12-11 | Michael Raley | Rights expression profile system and method |
JP2005532610A (ja) * | 2002-03-14 | 2005-10-27 | コンテントガード ホールディングズ インコーポレイテッド | 変調された信号を使用して使用権を表現するシステム及び方法 |
US7805371B2 (en) * | 2002-03-14 | 2010-09-28 | Contentguard Holdings, Inc. | Rights expression profile system and method |
US8543511B2 (en) * | 2002-04-29 | 2013-09-24 | Contentguard Holdings, Inc. | System and method for specifying and processing legality expressions |
JP4026403B2 (ja) * | 2002-04-30 | 2007-12-26 | 日本電気株式会社 | 放送鉄塔選択方法、放送鉄塔選択プログラム及び放送受信装置 |
US7530084B2 (en) * | 2002-05-28 | 2009-05-05 | Sony Corporation | Method and apparatus for synchronizing dynamic graphics |
US8818896B2 (en) | 2002-09-09 | 2014-08-26 | Sony Corporation | Selective encryption with coverage encryption |
US7724907B2 (en) | 2002-11-05 | 2010-05-25 | Sony Corporation | Mechanism for protecting the transfer of digital content |
US8572408B2 (en) | 2002-11-05 | 2013-10-29 | Sony Corporation | Digital rights management of a digital device |
US8645988B2 (en) | 2002-12-13 | 2014-02-04 | Sony Corporation | Content personalization for digital content |
US8667525B2 (en) * | 2002-12-13 | 2014-03-04 | Sony Corporation | Targeted advertisement selection from a digital stream |
US20040165586A1 (en) * | 2003-02-24 | 2004-08-26 | Read Christopher Jensen | PID filters based network routing |
US7292692B2 (en) * | 2003-03-25 | 2007-11-06 | Sony Corporation | Content scrambling with minimal impact on legacy devices |
US7685642B2 (en) * | 2003-06-26 | 2010-03-23 | Contentguard Holdings, Inc. | System and method for controlling rights expressions by stakeholders of an item |
US7853980B2 (en) | 2003-10-31 | 2010-12-14 | Sony Corporation | Bi-directional indices for trick mode video-on-demand |
US20050097593A1 (en) * | 2003-11-05 | 2005-05-05 | Michael Raley | System, method and device for selected content distribution |
US7461012B2 (en) * | 2004-06-08 | 2008-12-02 | Elbex Video Ltd. | Method and apparatus for simplified e-commerce shopping via home shopping terminals |
US20060067293A1 (en) * | 2004-09-24 | 2006-03-30 | John Santhoff | Digital synthesis of communication signals |
US20060107326A1 (en) * | 2004-11-12 | 2006-05-18 | Demartini Thomas | Method, system, and device for verifying authorized issuance of a rights expression |
US20060106726A1 (en) * | 2004-11-18 | 2006-05-18 | Contentguard Holdings, Inc. | Method, system, and device for license-centric content consumption |
US8660961B2 (en) * | 2004-11-18 | 2014-02-25 | Contentguard Holdings, Inc. | Method, system, and device for license-centric content consumption |
US20060112015A1 (en) * | 2004-11-24 | 2006-05-25 | Contentguard Holdings, Inc. | Method, system, and device for handling creation of derivative works and for adapting rights to derivative works |
US8041190B2 (en) | 2004-12-15 | 2011-10-18 | Sony Corporation | System and method for the creation, synchronization and delivery of alternate content |
US7895617B2 (en) | 2004-12-15 | 2011-02-22 | Sony Corporation | Content substitution editor |
WO2006093723A2 (en) * | 2005-02-25 | 2006-09-08 | Data Fusion Corporation | Mitigating interference in a signal |
US20060248573A1 (en) * | 2005-04-28 | 2006-11-02 | Content Guard Holdings, Inc. | System and method for developing and using trusted policy based on a social model |
US20060271915A1 (en) * | 2005-05-24 | 2006-11-30 | Contentguard Holdings, Inc. | Usage rights grammar and digital works having usage rights created with the grammar |
WO2007041170A2 (en) * | 2005-09-29 | 2007-04-12 | Contentguard Holdings, Inc. | System for digital rights management using advanced copy with issue rights and managed copy tokens |
US7720767B2 (en) * | 2005-10-24 | 2010-05-18 | Contentguard Holdings, Inc. | Method and system to support dynamic rights and resources sharing |
US8185921B2 (en) | 2006-02-28 | 2012-05-22 | Sony Corporation | Parental control of displayed content using closed captioning |
TW200828192A (en) * | 2006-12-27 | 2008-07-01 | Amtran Technology Co Ltd | Remote control locating system |
US8799955B2 (en) * | 2008-08-26 | 2014-08-05 | At&T Intellectual Property I, Lp | Apparatus and method for managing media content |
US8760585B2 (en) * | 2012-05-17 | 2014-06-24 | Sony Corporation | Nested symbol constellations representing respective services for graceful degradation in the presence of noise |
US8489469B1 (en) | 2012-08-30 | 2013-07-16 | Elbex Video Ltd. | Method and structure for simplified coding of display pages for operating a closed circuit E-commerce |
US9143808B2 (en) * | 2012-09-14 | 2015-09-22 | Cisco Technology, Inc. | Multi-channel MPEG between headend and fiber node |
US9635309B2 (en) | 2013-03-15 | 2017-04-25 | Arris Enterprises, Inc. | CATV video and data transmission system with digital input |
US9461744B2 (en) | 2013-03-15 | 2016-10-04 | Arris Enterprises, Inc. | CATV video and data transmission system with signal insertion |
US9900634B2 (en) * | 2013-03-15 | 2018-02-20 | Arris Enterprises, Inc. | CATV video and data transmission system with automatic parameter control |
US9166611B2 (en) * | 2013-08-27 | 2015-10-20 | Raytheon Company | Efficient high speed ADC interface design |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB742977A (en) * | 1953-12-14 | 1956-01-04 | Standard Telephones Cables Ltd | Improvements in or relating to electric carrier current communication systems |
US3573380A (en) * | 1969-05-15 | 1971-04-06 | Bell Telephone Labor Inc | Single-sideband modulation system |
US3898566A (en) * | 1972-10-02 | 1975-08-05 | Phasecom Corp | Method and apparatus for reducing distortion in multicarrier communication systems |
US3852519A (en) * | 1972-10-20 | 1974-12-03 | Optical Systems Corp | Video and audio encoding/decoding system employing suppressed carrier modulation |
US4253114A (en) * | 1976-04-08 | 1981-02-24 | Twin County Trans-Video Inc. | High security subscription television system employing real time control of subscriber's program reception |
US4349704A (en) * | 1979-12-31 | 1982-09-14 | Bell Telephone Laboratories, Incorporated | Digital multifrequency signal generator |
US4330794A (en) * | 1979-12-31 | 1982-05-18 | Gte Automatic Electric Laboratories, Inc. | Multichannel subscription television system |
JPS57196678A (en) * | 1981-05-27 | 1982-12-02 | Pioneer Electronic Corp | Table network managing mechanism in catv system |
US4598312A (en) * | 1984-03-27 | 1986-07-01 | Ortech Electronics Inc. | Secure video distribution systems |
US4598313A (en) * | 1984-10-31 | 1986-07-01 | Zenith Electronics Corporation | Television signal scrambling system |
US4845436A (en) * | 1985-05-29 | 1989-07-04 | Trio Kabushiki Kaisha | Frequency synthesizer suited for use in a time division multiplexing system |
US4825468A (en) * | 1986-10-24 | 1989-04-25 | Broadband Engineering, Inc. | Video noise jammer |
US4864613A (en) * | 1986-11-10 | 1989-09-05 | General Instrument Corporation | Broadband converter/descrambler interface for cable TV |
US4761798A (en) * | 1987-04-02 | 1988-08-02 | Itt Aerospace Optical | Baseband phase modulator apparatus employing digital techniques |
US4816783A (en) * | 1988-01-11 | 1989-03-28 | Motorola, Inc. | Method and apparatus for quadrature modulation |
US4864403A (en) * | 1988-02-08 | 1989-09-05 | Rca Licensing Corporation | Adaptive television ghost cancellation system including filter circuitry with non-integer sample delay |
US4926477A (en) * | 1988-06-14 | 1990-05-15 | General Instrument Corporation | Cable television descrambler |
US5121348A (en) * | 1989-08-31 | 1992-06-09 | The United States Of America As Represented By The Secretary Of The Navy | Broad-band programmable harmonics generator |
WO1991015925A1 (en) * | 1990-03-30 | 1991-10-17 | National Transcommunications Limited | Transmission and reception in a hostile interference environment |
US5125100A (en) * | 1990-07-02 | 1992-06-23 | Katznelson Ron D | Optimal signal synthesis for distortion cancelling multicarrier systems |
US5319709A (en) * | 1991-06-13 | 1994-06-07 | Scientific-Atlanta, Inc. | System for broadband descrambling of sync suppressed television signals |
US5162763A (en) * | 1991-11-18 | 1992-11-10 | Morris Keith D | Single sideband modulator for translating baseband signals to radio frequency in single stage |
US5267021A (en) * | 1992-04-03 | 1993-11-30 | The Trustees Of Columbia University In The City Of New York | Multiresolution digital television broadcast system |
-
1993
- 1993-01-07 AT AT01104853T patent/ATE292356T1/de not_active IP Right Cessation
- 1993-01-07 DE DE69333787T patent/DE69333787T2/de not_active Expired - Fee Related
- 1993-01-07 AU AU34681/93A patent/AU693766B2/en not_active Ceased
- 1993-01-07 EP EP01104853A patent/EP1115248B1/de not_active Expired - Lifetime
- 1993-01-07 EP EP05006721A patent/EP1553776A1/de not_active Withdrawn
- 1993-01-07 AT AT93903401T patent/ATE207278T1/de active
- 1993-01-07 JP JP5512586A patent/JPH07503111A/ja active Pending
- 1993-01-07 WO PCT/US1993/000148 patent/WO1993014597A1/en active IP Right Grant
- 1993-01-07 EP EP93903401A patent/EP0622003B1/de not_active Expired - Lifetime
- 1993-01-07 DE DE69330946T patent/DE69330946D1/de not_active Expired - Lifetime
- 1993-01-07 KR KR1019940702367A patent/KR100269004B1/ko not_active IP Right Cessation
-
1994
- 1994-04-25 US US08/233,212 patent/US5430799A/en not_active Expired - Lifetime
-
1995
- 1995-05-03 US US08/433,135 patent/US5754650A/en not_active Expired - Fee Related
-
1998
- 1998-05-18 US US09/080,621 patent/US6148320A/en not_active Expired - Fee Related
-
2000
- 2000-11-14 US US09/712,096 patent/US6731757B1/en not_active Expired - Fee Related
-
2003
- 2003-08-11 US US10/639,146 patent/US7292286B2/en not_active Expired - Fee Related
-
2004
- 2004-04-21 JP JP2004125417A patent/JP2004304816A/ja active Pending
-
2007
- 2007-10-26 US US11/924,759 patent/US20090174820A1/en not_active Abandoned
- 2007-11-05 US US11/935,317 patent/US7724309B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1553776A1 (de) | 2005-07-13 |
ATE292356T1 (de) | 2005-04-15 |
DE69333787T2 (de) | 2006-02-02 |
JP2004304816A (ja) | 2004-10-28 |
AU693766B2 (en) | 1998-07-09 |
US20080080622A1 (en) | 2008-04-03 |
US20040052370A1 (en) | 2004-03-18 |
AU3468193A (en) | 1993-08-03 |
KR940704104A (ko) | 1994-12-12 |
KR100269004B1 (ko) | 2000-10-16 |
EP0622003A4 (de) | 1994-09-08 |
EP0622003B1 (de) | 2001-10-17 |
WO1993014597A1 (en) | 1993-07-22 |
US6148320A (en) | 2000-11-14 |
US6731757B1 (en) | 2004-05-04 |
US5430799A (en) | 1995-07-04 |
DE69330946D1 (de) | 2001-11-22 |
DE69333787D1 (de) | 2005-05-04 |
EP1115248A1 (de) | 2001-07-11 |
EP1115248B1 (de) | 2005-03-30 |
JPH07503111A (ja) | 1995-03-30 |
US7292286B2 (en) | 2007-11-06 |
US20090174820A1 (en) | 2009-07-09 |
US7724309B2 (en) | 2010-05-25 |
EP0622003A1 (de) | 1994-11-02 |
US5754650A (en) | 1998-05-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE207278T1 (de) | Mehrkanal-fernsehsignal ver- und entschlüsselungssystem und -verfahren | |
DK612389D0 (da) | Fremgangsmaade og apparat til tilvejebringelse af digital audio i fm-sendebaandet | |
US4621282A (en) | Transmitting stereo audio programs in cable TV systems | |
DE59604958D1 (de) | Verfahren zur terrestrischen übertragung digitaler signale | |
AU2374595A (en) | Method and apparatus for am compatible digital broadcasting | |
GB9500285D0 (en) | A method of labelling an audio signal | |
ES2132213T3 (es) | Transmision utilizando ofdm con multiplexion en polarizacion. | |
ATE178174T1 (de) | Verfahren zur gemeinsamen übertragung digital und analog modulierter rundfunk- und/oder fernsehrundfunksignale | |
ATE18842T1 (de) | Verfahren zum zeitweisen abschalten eines fernsehempfaengers. | |
US6167241A (en) | Technique for performing amplitude modulation without cheating side-bands | |
CA2527157A1 (en) | Multichannel quadrature modulation compatible with standard television channel plans | |
US4519067A (en) | Communication system providing amplifier gain by half-cycle carrier signal control | |
US4194088A (en) | Modulation monitor for AM stereophonic broadcasts | |
FI981294A0 (fi) | Menetelmä ja laite informaation välittämiseksi radioteitse | |
EP0393856A3 (de) | Modulierung von Nachbarkanälen | |
US5461347A (en) | Apparatus and method for geometrically modulating electromagnetic radiation and a receiver for decoding geometrically modulated signals | |
SU1732481A1 (ru) | Способ передачи сигналов стереофонического звукового сопровождени телевидени | |
GB2407462A (en) | Multi-channel coded orthogonal frequency division modulation system | |
DK0744105T3 (da) | Fremgangsmåde og apparat til audiomaskering og -afmaskering med lave omkostninger | |
RU94031184A (ru) | Устройство унифицированных дополнительных радиоканалов для передачи аналоговых и дискретных сигналов в тракте передатчиков с частотной модуляцией сети овч-радиовещания и (вариант) в тракте передатчиков звукового сопровождения телевидения | |
TH17701EX (th) | การป้อนกลับหลายคลื่นพาห์แบบคาร์ทีเชียน | |
GB931421A (en) | Improvements relating to stereophonic sound transmission systems |