DE69330946D1 - Mehrkanal-fernsehsignal ver- und entschlüsselungssystem und -verfahren - Google Patents
Mehrkanal-fernsehsignal ver- und entschlüsselungssystem und -verfahrenInfo
- Publication number
- DE69330946D1 DE69330946D1 DE69330946T DE69330946T DE69330946D1 DE 69330946 D1 DE69330946 D1 DE 69330946D1 DE 69330946 T DE69330946 T DE 69330946T DE 69330946 T DE69330946 T DE 69330946T DE 69330946 D1 DE69330946 D1 DE 69330946D1
- Authority
- DE
- Germany
- Prior art keywords
- signals
- television signal
- encryption system
- quadrature
- composite baseband
- 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.)
- Expired - Lifetime
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)
- Time-Division Multiplex Systems (AREA)
- Details Of Television Systems (AREA)
- Television 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 |
---|---|
DE69330946D1 true DE69330946D1 (de) | 2001-11-22 |
Family
ID=25226320
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69333787T Expired - Fee Related DE69333787T2 (de) | 1992-01-08 | 1993-01-07 | Verfahren und Gerät zur Erzeugung eines Mehrkanalsignal |
DE69330946T Expired - Lifetime DE69330946D1 (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 |
---|---|---|---|
DE69333787T Expired - Fee Related DE69333787T2 (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) | EP1553776A1 (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 |
WO1996002111A1 (en) * | 1994-07-11 | 1996-01-25 | California Amplifier | Encryption/decryption process and apparatus for a multichannel television system |
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 |
USRE42236E1 (en) | 1995-02-06 | 2011-03-22 | Adc Telecommunications, Inc. | Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing |
US7280564B1 (en) | 1995-02-06 | 2007-10-09 | Adc Telecommunications, Inc. | Synchronization techniques in multipoint-to-point communication using orthgonal 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 |
EP0806116A4 (de) * | 1995-07-11 | 2000-06-28 | California Amplifier | Selektive sperrung von fernsehkanalen |
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 |
US6233684B1 (en) | 1997-02-28 | 2001-05-15 | Contenaguard Holdings, Inc. | System for controlling the distribution and use of rendered digital works through watermaking |
US6195090B1 (en) | 1997-02-28 | 2001-02-27 | Riggins, Iii A. Stephen | Interactive sporting-event monitoring system |
EP1074967A4 (de) * | 1999-02-19 | 2010-12-15 | Panasonic Corp | Bildsignal-verarbeitungs-vorrichtung |
US7730300B2 (en) | 1999-03-30 | 2010-06-01 | Sony Corporation | Method and apparatus for protecting the transfer of data |
US6697489B1 (en) * | 1999-03-30 | 2004-02-24 | Sony Corporation | Method and apparatus for securing control words |
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 |
US8832852B2 (en) * | 2000-08-28 | 2014-09-09 | Contentguard Holdings, Inc. | Method and apparatus for dynamic protection of static and dynamic content |
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 |
US6754642B2 (en) * | 2001-05-31 | 2004-06-22 | Contentguard Holdings, Inc. | Method and apparatus for dynamically assigning usage rights to digital works |
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 |
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 |
US7774279B2 (en) * | 2001-05-31 | 2010-08-10 | Contentguard Holdings, Inc. | Rights offering and granting |
US7028009B2 (en) * | 2001-01-17 | 2006-04-11 | Contentguardiholdings, Inc. | Method and apparatus for distributing enforceable property 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 |
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 |
US8275709B2 (en) * | 2001-05-31 | 2012-09-25 | Contentguard Holdings, Inc. | Digital rights management of content when content is a future live event |
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 |
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 |
US8099364B2 (en) * | 2001-05-31 | 2012-01-17 | Contentguard Holdings, Inc. | Digital rights management of content when content is a future live event |
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 |
US8001053B2 (en) * | 2001-05-31 | 2011-08-16 | Contentguard Holdings, Inc. | System and method for rights offering and granting using shared state variables |
US7124303B2 (en) * | 2001-06-06 | 2006-10-17 | Sony Corporation | Elementary stream partial encryption |
US7895616B2 (en) | 2001-06-06 | 2011-02-22 | Sony Corporation | Reconstitution of program streams split across multiple packet identifiers |
US7747853B2 (en) | 2001-06-06 | 2010-06-29 | Sony Corporation | IP delivery of secure digital content |
US20030140003A1 (en) * | 2001-06-07 | 2003-07-24 | Xin Wang | Method and apparatus managing the transfer of rights |
KR20030096250A (ko) * | 2001-06-07 | 2003-12-24 | 콘텐트가드 홀딩즈 인코포레이티드 | 디지털 권리 관리시스템에서 다중 신뢰구역들을 지원하기위한 방법 및 장치 |
US7774280B2 (en) | 2001-06-07 | 2010-08-10 | Contentguard Holdings, Inc. | System and method for managing transfer of rights using shared state variables |
WO2003044716A2 (en) * | 2001-11-20 | 2003-05-30 | Contentguard Holdings, Inc. | An extensible rights expression processing system |
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 |
US7974923B2 (en) * | 2001-11-20 | 2011-07-05 | Contentguard Holdings, Inc. | Extensible rights expression processing system |
US7242773B2 (en) * | 2002-09-09 | 2007-07-10 | Sony Corporation | Multiple partial encryption using retuning |
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 |
US7039938B2 (en) * | 2002-01-02 | 2006-05-02 | Sony Corporation | Selective encryption for video on demand |
US7155012B2 (en) * | 2002-01-02 | 2006-12-26 | Sony Corporation | Slice mask and moat pattern partial encryption |
US7292690B2 (en) | 2002-01-02 | 2007-11-06 | Sony Corporation | Video scene change detection |
US7292691B2 (en) | 2002-01-02 | 2007-11-06 | Sony Corporation | Progressive video refresh slice detection |
US7765567B2 (en) | 2002-01-02 | 2010-07-27 | Sony Corporation | Content replacement by PID mapping |
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 |
KR20040101312A (ko) * | 2002-03-14 | 2004-12-02 | 콘텐트가드 홀딩즈 인코포레이티드 | 변조된 신호를 사용하여 사용권을 표현하는 시스템 및 방법 |
US7805371B2 (en) * | 2002-03-14 | 2010-09-28 | Contentguard Holdings, Inc. | Rights expression profile system and method |
JP2005524177A (ja) * | 2002-04-29 | 2005-08-11 | 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 | 法的表現を指定および処理するシステムおよび方法 |
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 |
US8572408B2 (en) | 2002-11-05 | 2013-10-29 | Sony Corporation | Digital rights management of a digital device |
US7724907B2 (en) * | 2002-11-05 | 2010-05-25 | Sony Corporation | Mechanism for protecting the transfer of digital content |
US8667525B2 (en) * | 2002-12-13 | 2014-03-04 | Sony Corporation | Targeted advertisement selection from a digital stream |
US8645988B2 (en) | 2002-12-13 | 2014-02-04 | Sony Corporation | Content personalization for digital content |
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 |
US8660961B2 (en) | 2004-11-18 | 2014-02-25 | Contentguard Holdings, Inc. | Method, system, and device for license-centric content consumption |
US20060106726A1 (en) * | 2004-11-18 | 2006-05-18 | 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 |
GB2438347B8 (en) * | 2005-02-25 | 2009-04-08 | Data Fusion Corp | 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 |
US20060271493A1 (en) * | 2005-05-24 | 2006-11-30 | Contentguard Holdings, Inc. | Method and apparatus for executing code in accordance with usage rights |
JP2009510625A (ja) * | 2005-09-29 | 2009-03-12 | 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 | 権利発行を伴うアドバンストコピー、及び管理されたコピートークンを用いたデジタル著作権管理システム及び方法 |
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 |
US9900634B2 (en) * | 2013-03-15 | 2018-02-20 | Arris Enterprises, Inc. | CATV video and data transmission system with automatic parameter control |
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 |
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 |
DE69120401T2 (de) | 1990-03-30 | 1997-01-02 | Digi Media Vision Ltd | Sendung und empfang bei einer störenden interferenzumgebung |
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 AU AU34681/93A patent/AU693766B2/en not_active Ceased
- 1993-01-07 DE DE69333787T patent/DE69333787T2/de not_active Expired - Fee Related
- 1993-01-07 AT AT01104853T patent/ATE292356T1/de not_active IP Right Cessation
- 1993-01-07 EP EP05006721A patent/EP1553776A1/de not_active Withdrawn
- 1993-01-07 EP EP01104853A patent/EP1115248B1/de not_active Expired - Lifetime
- 1993-01-07 DE DE69330946T patent/DE69330946D1/de not_active Expired - Lifetime
- 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 AT AT93903401T patent/ATE207278T1/de active
- 1993-01-07 KR KR1019940702367A patent/KR100269004B1/ko not_active IP Right Cessation
- 1993-01-07 EP EP93903401A patent/EP0622003B1/de not_active Expired - Lifetime
-
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 |
---|---|
US6731757B1 (en) | 2004-05-04 |
WO1993014597A1 (en) | 1993-07-22 |
US5754650A (en) | 1998-05-19 |
EP0622003A1 (de) | 1994-11-02 |
AU693766B2 (en) | 1998-07-09 |
US20090174820A1 (en) | 2009-07-09 |
JP2004304816A (ja) | 2004-10-28 |
EP1115248A1 (de) | 2001-07-11 |
EP1115248B1 (de) | 2005-03-30 |
DE69333787D1 (de) | 2005-05-04 |
US6148320A (en) | 2000-11-14 |
ATE207278T1 (de) | 2001-11-15 |
EP0622003A4 (de) | 1994-09-08 |
EP0622003B1 (de) | 2001-10-17 |
AU3468193A (en) | 1993-08-03 |
KR940704104A (ko) | 1994-12-12 |
KR100269004B1 (ko) | 2000-10-16 |
DE69333787T2 (de) | 2006-02-02 |
US7292286B2 (en) | 2007-11-06 |
ATE292356T1 (de) | 2005-04-15 |
US7724309B2 (en) | 2010-05-25 |
US5430799A (en) | 1995-07-04 |
JPH07503111A (ja) | 1995-03-30 |
US20040052370A1 (en) | 2004-03-18 |
US20080080622A1 (en) | 2008-04-03 |
EP1553776A1 (de) | 2005-07-13 |
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