KR960019110A - 디지탈 영상 시스템의 복사 방지 방법 및 장치 - Google Patents

디지탈 영상 시스템의 복사 방지 방법 및 장치 Download PDF

Info

Publication number
KR960019110A
KR960019110A KR1019940031373A KR19940031373A KR960019110A KR 960019110 A KR960019110 A KR 960019110A KR 1019940031373 A KR1019940031373 A KR 1019940031373A KR 19940031373 A KR19940031373 A KR 19940031373A KR 960019110 A KR960019110 A KR 960019110A
Authority
KR
South Korea
Prior art keywords
copy protection
key
bit stream
detecting
information
Prior art date
Application number
KR1019940031373A
Other languages
English (en)
Other versions
KR0152788B1 (ko
Inventor
박태준
Original Assignee
이헌조
엘지전자 주식회사
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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19399149&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR960019110(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 이헌조, 엘지전자 주식회사 filed Critical 이헌조
Priority to KR1019940031373A priority Critical patent/KR0152788B1/ko
Priority to US08/562,042 priority patent/US5761302A/en
Priority to CNB951203541A priority patent/CN1145576C/zh
Priority to CNA2006100071322A priority patent/CN1822166A/zh
Priority to CNB031073360A priority patent/CN1268126C/zh
Priority to CNA2006100071341A priority patent/CN1822168A/zh
Priority to CN95120356A priority patent/CN1123226C/zh
Priority to CN200410056681XA priority patent/CN1567993B/zh
Priority to CN200610055098.6A priority patent/CN1822668B/zh
Priority to CNA200510129704XA priority patent/CN1801919A/zh
Priority to CNB2003101179608A priority patent/CN1268127C/zh
Priority to CNA2006100071337A priority patent/CN1822167A/zh
Priority to CN200610055097.1A priority patent/CN1822667B/zh
Priority to JP7307915A priority patent/JP2824231B2/ja
Priority to DE69522424T priority patent/DE69522424D1/de
Priority to EP95308482A priority patent/EP0717564B1/en
Priority to JP7308005A priority patent/JP2898591B2/ja
Publication of KR960019110A publication Critical patent/KR960019110A/ko
Priority to US09/053,288 priority patent/US6028932A/en
Application granted granted Critical
Publication of KR0152788B1 publication Critical patent/KR0152788B1/ko
Priority to US09/497,465 priority patent/US6347144B1/en
Priority to US10/737,672 priority patent/USRE39319E1/en
Priority to US10/737,671 priority patent/USRE42950E1/en
Priority to US10/909,248 priority patent/USRE42921E1/en
Priority to US10/981,797 priority patent/USRE42951E1/en
Priority to HK04108794A priority patent/HK1066131A1/xx
Priority to HK04109762A priority patent/HK1068000A1/xx
Priority to US11/040,607 priority patent/USRE42922E1/en
Priority to US11/040,606 priority patent/USRE41074E1/en
Priority to HK06112984.7A priority patent/HK1092627A1/xx
Priority to HK05101189.4A priority patent/HK1069049A1/xx
Priority to HK06112983.8A priority patent/HK1092626A1/xx

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91328—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/806—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal
    • H04N9/8063—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal using time division multiplex of the PCM audio and PCM video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Storage Device Security (AREA)
  • Electric Vacuum Cleaner (AREA)

Abstract

본 발명은 디지탈 브이싸알의 복사 방지 방법 및 장치에 관한 것으로, 종래의 아날로그 방식은 제조 회사에 따라 일부 브이씨알에서 복사 방지 기능이 작동하지 않거나 원본 테이프가 제대로 재생되지 않는 문제점이 있고, 종래의 디지탈 방식은 퍼브릭-키 암호화 방식을 적용하였을 경우 연산량이 많아 고속 처리에 부적합하고 또한, DSM과 같은 프로그램에 대해 보호할 수 없는 문제점이 있다. 이러한 문제점을 해결하기 위하여 본 발명은 테이프를 복사할 때 암호화된 자신만의 키 정보를 전송하여 녹화시키므로써 암호화된 해당 키 정보를 내장한 브이씨알에서만 복사 테이프를 재생 가능하도록 창안한 것으로, 본 발명은 테이프를 복사할 때 자신의 키정보를 비트 스트림과 함께 녹화시키므로써 해당 키 정보를 가진 브이씨알에서만 테이프를 정상적으로 재생하도록 하여 테이프의 무단 복제를 방지할 수 있고, 또한, 퍼브릭-키 암호화 방식을 적용한 키 정보를 전송하므로써 복사 방지 기능의 해제가 불가능하게 하므로써 복사 방지 기능의 신뢰성을 향상시킬 수 있는 효과가 있다.

Description

디지탈 영상 시스템의 복사 방지 방법 및 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제4도는 본 발명에서 시스템간 접속도,
제5도는 본 발명을 적용한 브이씨알의 블럭도,
제6도는 제5도에서 복사 방지 정보 검출부의 블럭도.

Claims (15)

  1. 비트 스트림에 키 필드를 부가하는 제1단계와, 제1단계에서 키 필드가 부가된 비트 스트림을 복호하는 제2단계와, 제2단계에서 복호된 비트 스트림의 키 필드를 검출하여 복사 방지 정보를 검출하는 제3단계와, 제3단계에서 검출된 정보에 딸 부호화하여 녹화하는 제4단계로 이루어진 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 방법.
  2. 제1항에 있어서, 비트 스트림의 선두에 패킷 시작 코드를 부가한 후 키 필드를 부가하는 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 방법.
  3. 제1항에 있어서, 키 필드를 검출하여 필요에 따라 수정하는 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 방법.
  4. 제1항에 있어서, 복사 방지 정보는 Additional Copy Info. 필드에 기록 하는 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 방법.
  5. 제4하에 있어서, Additional Copy Info. 필드의 가변적인 위치를 보상하는 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 방법.
  6. 제1항에 있어서, 비트 스트림을 블럭 단위로 부호화하는 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 방법.
  7. 제1항 또는 제6항에 있어서, 비트 스트림을 Additional Copy Info. 필드이후부터 부호화하는 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 방법.
  8. 재생된 비트 스트림에 키 정보를 부가하여 복호화하는 재생 처리 블럭과, 이 재생 처리 블럭에서 전송된 비트 스트림의 키 정보를 검색하여 복사 방지 정보를 추출하고 이 추출된 복사 방지 정보에 따라 비트 스트림을 부호화하여 녹화하는 녹화 처리 블럭으로 구성한 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 장치.
  9. 제8항에 있어서, 재생 처리 블럭은 녹화 데이타를 재생하는 재생 수단과, 이 재생 수단의 비트 스트림에 키 정보를 부가하는 키 삽입 수단과, 이 키 삽입 수단의 출력을 복호하여 기록측 브이씨알로 전송하는 복호화 수단으로 구성한 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 장치.
  10. 제8항에 있어서, 재생측 브이씨알 전송 비트 스트림에서 키 정보를 검출하는 키 검출 및 수정 수단과, 이 키 검출 및 수정 수단에서 검출한 키 정보를 검색하여 복사 방지 정보를 검출하는 복사 방지 정보 검출 수단과, 이 복사 방지 정보 검출 수단의 복사 방지 정보에 따라 비트 스트림을 부호화하는 부호화 수단과, 이 부호화 수단에서 부호화된 비트 스트림을 기록하는 기록 수단으로 구성한 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 장치.
  11. 제10항에 있어서, 복사 방지 정보 검출 수단은 키 검출 및 수정 수단의 병렬 데이타에서 PES헤더를 검출하는 PES헤더 검출단과, 이 PES 헤더 검출단의 헤더 검출 신호에 인에이블되어 Additional Copy Info. 필드를 검출하는 복사 방지 정보 검출단으로 구성한 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 장치.
  12. 제11항에 있어서, PES 헤더 검출단은 클럭(CLK)에 동기되어 키 검출 및 수정 수단의 병렬 데이타를 지연시키는 제1지연기와, 이 지연기의 입출력 데이타를 검색하여 패킷 시작 코드를 검출하는 패킷 시작 코드 검출기와, 이 패킷 시작 코드 검출기의 출력을 소정 시간 지연시키는 제2지연기와, 상기 제1지연기의 출력 데이타를 검색하여 스트림 인식 코드를 검출하는 스트림 인식 코드 검출기와, 이 스트림 인식 코드 검출기와 상기 제2지연기의 출력을 논리 조합하여 헤더 검출 신호(is-PES-header)를 출력하는 검출 신호 발생기로 구성한 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 장치.
  13. 제12항에 있어서, 제1, 제2지연기는 디플립플롭을 다단으로 직렬 접속하여 구성한 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 장치.
  14. 제12항에 있어서, 검출 신호 발생기는 패킷 시작 코드 검출기의 패킷 시작 코드 검출 신호와 스트림 인식 코드 검출기의 스트림 인식 코드 검출 신호를 논리곱하는 앤드게이트와, 이 앤드게이트의 출력을 클럭(CLK)에 동기되어 상기 앤드게이트의 출력을 홀딩하는 플립플롭으로 구성한 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 장치.
  15. 제11항에 있어서, 복사 방지 정보 검출단은 PES 헤더 검출단의 병렬 데이타를 홀딩시키는 플립플롭(21)과, 이 플립플롭(21)의 출력중 CR플래그에 인에이블되어 전압(Vcc)을 홀딩시키는 플립플롭(23)과, 상기 플립플롭(21)의 출력중 OC플래그에 인에이블되어 전압(Vcc)을 홀딩시키는 플립플롭(24)과, 상기 PES 헤더 검출단의 병렬 데이타를 점검하여 Additional Copy Info. 필드의 위치를 산출하는 정보 위치 검출기(25)과, 이 정보 위치 검출기(25)의 출력을 계수하는 카운터(26)와, 이 카운터(26)의 출력에 동기되어 상기 플립플롭(21)의 출력중 Additional Copy Info. 필드를 홀딩시키는 플립플롭(27)과, 상기 PES 헤더 검출부의 헤더 검출신호(is-PES-header)에 동기되어 상기 플립플롭(23)(24)(27)을 인에이블시키는 플립플롭(22)으로 구성한 것을 특징으로 하는 디지탈 영상 시스템의 복사 방지 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940031373A 1994-11-26 1994-11-26 디지탈 영상 시스템의 복사 방지 방법 및 장치 KR0152788B1 (ko)

Priority Applications (30)

Application Number Priority Date Filing Date Title
KR1019940031373A KR0152788B1 (ko) 1994-11-26 1994-11-26 디지탈 영상 시스템의 복사 방지 방법 및 장치
US08/562,042 US5761302A (en) 1994-11-26 1995-11-22 Copy prevention method and apparatus for digital video system
CNB031073360A CN1268126C (zh) 1994-11-26 1995-11-26 用于数字数据处理和记录系统的防复制方法和记录装置
CNA2006100071322A CN1822166A (zh) 1994-11-26 1995-11-26 用于数字数据处理和记录系统的防复制方法
CNB951203541A CN1145576C (zh) 1994-11-26 1995-11-26 用于真空吸尘器的电线缠绕器
CNA2006100071341A CN1822168A (zh) 1994-11-26 1995-11-26 用于数字数据处理和记录系统的防复制方法和防复制设备
CN95120356A CN1123226C (zh) 1994-11-26 1995-11-26 用于数字视频系统的防复制方法和装置
CN200410056681XA CN1567993B (zh) 1994-11-26 1995-11-26 防复制方法和装置
CN200610055098.6A CN1822668B (zh) 1994-11-26 1995-11-26 防复制方法和装置
CNA200510129704XA CN1801919A (zh) 1994-11-26 1995-11-26 数字数据处理装置、防复制方法和记录介质
CNB2003101179608A CN1268127C (zh) 1994-11-26 1995-11-26 数字数据处理装置和防复制方法
CNA2006100071337A CN1822167A (zh) 1994-11-26 1995-11-26 用于数字数据处理和记录系统的防复制方法和防复制设备
CN200610055097.1A CN1822667B (zh) 1994-11-26 1995-11-26 防复制方法和装置
JP7308005A JP2898591B2 (ja) 1994-11-26 1995-11-27 ディジタル映像システムの複写防止方法及び複写防止装置
JP7307915A JP2824231B2 (ja) 1994-11-26 1995-11-27 真空掃除機の電源コード巻き取り装置
DE69522424T DE69522424D1 (de) 1994-11-26 1995-11-27 Kopierverhinderungsverfahren und Kopierverhinderungsvorrichtung für ein digitales Videosystem
EP95308482A EP0717564B1 (en) 1994-11-26 1995-11-27 Copy prevention method and apparatus for digital video system
US09/053,288 US6028932A (en) 1994-11-26 1998-04-01 Copy prevention method and apparatus for digital video system
US09/497,465 US6347144B1 (en) 1994-11-26 2000-02-03 Copy prevention method and apparatus for digital video system
US10/737,672 USRE39319E1 (en) 1994-11-26 2003-12-17 Copy prevention method and apparatus for digital video system
US10/737,671 USRE42950E1 (en) 1994-11-26 2003-12-17 Copy prevention method and apparatus for digital video system
US10/909,248 USRE42921E1 (en) 1994-11-26 2004-08-02 Copy prevention method and apparatus for digital video system
US10/981,797 USRE42951E1 (en) 1994-11-26 2004-11-05 Copy prevention method and apparatus for digital video system
HK04108794A HK1066131A1 (en) 1994-11-26 2004-11-09 Copy prevention method and recording medium for digital data processing and recording system
HK04109762A HK1068000A1 (en) 1994-11-26 2004-12-09 Apparatus for processing digital data and copy protection method
US11/040,606 USRE41074E1 (en) 1994-11-26 2005-01-24 Copy prevention method and apparatus for digital video system
US11/040,607 USRE42922E1 (en) 1994-11-26 2005-01-24 Copy prevention method and apparatus for digital video system
HK06112984.7A HK1092627A1 (en) 1994-11-26 2005-02-15 Copy prevention method and apparatus
HK05101189.4A HK1069049A1 (en) 1994-11-26 2005-02-15 Copy prevention method and apparatus
HK06112983.8A HK1092626A1 (en) 1994-11-26 2005-02-15 Copy prevention method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940031373A KR0152788B1 (ko) 1994-11-26 1994-11-26 디지탈 영상 시스템의 복사 방지 방법 및 장치

Publications (2)

Publication Number Publication Date
KR960019110A true KR960019110A (ko) 1996-06-17
KR0152788B1 KR0152788B1 (ko) 1998-10-15

Family

ID=19399149

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940031373A KR0152788B1 (ko) 1994-11-26 1994-11-26 디지탈 영상 시스템의 복사 방지 방법 및 장치

Country Status (7)

Country Link
US (9) US5761302A (ko)
EP (1) EP0717564B1 (ko)
JP (2) JP2898591B2 (ko)
KR (1) KR0152788B1 (ko)
CN (11) CN1145576C (ko)
DE (1) DE69522424D1 (ko)
HK (5) HK1066131A1 (ko)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980025007A (ko) * 1996-09-27 1998-07-06 이데이 노부유키 디지털 데이터의 저작권 보호 방법 및 보호 시스템
KR100281044B1 (ko) * 1997-12-30 2001-02-01 구자홍 디지털브이씨알의복사방지장치와그방법
KR100386238B1 (ko) * 2001-01-19 2003-06-02 엘지전자 주식회사 디지탈 오디오 복제 방지장치 및 방법
KR100430697B1 (ko) * 1995-07-25 2004-07-16 소니 가부시끼 가이샤 신호기록장치/신호재생장치및신호기록매체
KR100590147B1 (ko) * 1996-09-05 2006-11-30 소니 가부시끼 가이샤 디지탈인터페이스를구비한디지탈기록장치및그저작권보호방법
KR100700508B1 (ko) * 1999-03-18 2007-03-28 엘지전자 주식회사 멀티미디어 전송시스템의 저작권 보호 장치

Families Citing this family (145)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10361802B1 (en) 1999-02-01 2019-07-23 Blanding Hovenweep, Llc Adaptive pattern recognition based control system and method
KR0152788B1 (ko) 1994-11-26 1998-10-15 이헌조 디지탈 영상 시스템의 복사 방지 방법 및 장치
KR0136458B1 (ko) 1994-12-08 1998-05-15 구자홍 디지탈 자기 기록재생 시스템의 복사 방지장치
JP3467964B2 (ja) * 1995-08-10 2003-11-17 ソニー株式会社 データ記録装置及び方法、データ再生装置及び方法、記録媒体、並びにデータ伝送方法
US5703859A (en) 1995-09-01 1997-12-30 Sony Corporation Digital video copy protection system
KR0166923B1 (ko) * 1995-09-18 1999-03-20 구자홍 디지탈 방송 시스템의 불법 시청 및 복사 방지방법 및 장치
US7221853B1 (en) 1996-09-05 2007-05-22 Sony Corporation Digital recording apparatus and copyright protection method thereof
JP3941178B2 (ja) 1996-09-05 2007-07-04 ソニー株式会社 記録媒体、デジタル記録機器、及び制御用ｉｃ
GB9626574D0 (en) * 1996-12-20 1997-02-05 Thomson Consumer Electronics Control of consumer recording equipment
US6584275B1 (en) 1996-12-20 2003-06-24 Thomson Licensing Sa Control of consumer recording equipment
JP4110588B2 (ja) * 1997-03-19 2008-07-02 ソニー株式会社 データ受信装置および受信方法
JP3891230B2 (ja) * 1997-05-29 2007-03-14 ソニー株式会社 付加情報重畳装置および付加情報重畳方法
JPH1173725A (ja) * 1997-08-29 1999-03-16 Sony Corp 情報信号記録再生システム、情報記録装置、情報信号再生装置および情報信号記録再生方法
US6223285B1 (en) * 1997-10-24 2001-04-24 Sony Corporation Of Japan Method and system for transferring information using an encryption mode indicator
US8300832B2 (en) 1998-01-08 2012-10-30 Samsung Electronics Co., Ltd. System and method for copy protection for digital signals
US7778418B1 (en) * 1998-01-08 2010-08-17 Samsung Electronics Co., Ltd. System and method for copy protection for digital signals
JP3890737B2 (ja) * 1998-04-14 2007-03-07 株式会社日立製作所 ディジタル映像信号または音声信号の再生装置及び再生方法
US6345099B1 (en) * 1998-05-22 2002-02-05 S3 Incorporated System and method for copy protecting computer graphics
JP3835655B2 (ja) * 1998-06-09 2006-10-18 ソニー株式会社 情報信号再生装置、情報信号処理装置、情報信号再生方法および情報信号出力方法
CN1303599C (zh) 1998-11-02 2007-03-07 松下电器产业株式会社 高速缓存设备
DE19906432C1 (de) * 1999-02-16 2000-06-21 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Erzeugen eines Datenstroms und Verfahren und Vorrichtung zum Abspielen eines Datenstroms
DE19906449C1 (de) * 1999-02-16 2000-08-10 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Erzeugen eines verschlüsselten Nutzdatenstroms und Verfahren und Vorrichtung zum Abspielen eines verschlüsselten Nutzdatenstroms
MY131509A (en) * 1999-03-15 2007-08-30 Sony Corp Data processing method, apparatus and system for encrypted- data transfer
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
US6912513B1 (en) 1999-10-29 2005-06-28 Sony Corporation Copy-protecting management using a user scrambling key
US7010685B1 (en) 1999-11-09 2006-03-07 Sony Corporation Method and apparatus for storing scrambled digital programs by filtering product identifier
US7039614B1 (en) * 1999-11-09 2006-05-02 Sony Corporation Method for simulcrypting scrambled data to a plurality of conditional access devices
JP3740917B2 (ja) * 1999-11-26 2006-02-01 日本ビクター株式会社 記録方法及び記録媒体
US6701528B1 (en) * 2000-01-26 2004-03-02 Hughes Electronics Corporation Virtual video on demand using multiple encrypted video segments
SG97852A1 (en) * 2000-02-25 2003-08-20 Kent Ridge Digital Labs Method and apparatus for digital content copy protection
JP2001266480A (ja) * 2000-03-22 2001-09-28 Sony Computer Entertainment Inc 暗号化された音声データを記録した記録媒体、情報処理装置
JP4457474B2 (ja) * 2000-04-04 2010-04-28 ソニー株式会社 情報記録装置、情報再生装置、情報記録方法、情報再生方法、および情報記録媒体、並びにプログラム提供媒体
JP3896768B2 (ja) * 2000-05-31 2007-03-22 日本電気株式会社 Ｍｐｅｇビデオエレメンタリストリーム抽出装置及びそれに用いるエレメンタリストリーム抽出方法
US8082572B1 (en) 2000-06-08 2011-12-20 The Directv Group, Inc. Method and apparatus for transmitting, receiving, and utilizing audio/visual signals and other information
US20030206631A1 (en) * 2000-06-22 2003-11-06 Candelore Brant L. Method and apparatus for scrambling program data for furture viewing
US20040205812A1 (en) * 2000-06-22 2004-10-14 Candelore Brant L. Method and apparatus for routing program data in a program viewing unit
US6853728B1 (en) * 2000-07-21 2005-02-08 The Directv Group, Inc. Video on demand pay per view services with unmodified conditional access functionality
US7457414B1 (en) 2000-07-21 2008-11-25 The Directv Group, Inc. Super encrypted storage and retrieval of media programs with smartcard generated keys
US7203314B1 (en) 2000-07-21 2007-04-10 The Directv Group, Inc. Super encrypted storage and retrieval of media programs with modified conditional access functionality
US8140859B1 (en) 2000-07-21 2012-03-20 The Directv Group, Inc. Secure storage and replay of media programs using a hard-paired receiver and storage device
US7203311B1 (en) 2000-07-21 2007-04-10 The Directv Group, Inc. Super encrypted storage and retrieval of media programs in a hard-paired receiver and storage device
US7242772B1 (en) 2000-09-07 2007-07-10 Eastman Kodak Company Encryption apparatus and method for synchronizing multiple encryption keys with a data stream
JP2002133765A (ja) * 2000-10-20 2002-05-10 Pioneer Electronic Corp 情報記録装置、情報記録方法、情報再生装置、情報再生方法及び情報記録媒体
US7181017B1 (en) 2001-03-23 2007-02-20 David Felsher System and method for secure three-party communications
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
US7350082B2 (en) * 2001-06-06 2008-03-25 Sony Corporation Upgrading of encryption
KR100408287B1 (ko) * 2001-06-15 2003-12-03 삼성전자주식회사 컨텐트 보호 시스템 및 방법
US7039955B2 (en) 2001-09-14 2006-05-02 The Directv Group, Inc. Embedded blacklisting for digital broadcast system security
US7797552B2 (en) * 2001-09-21 2010-09-14 The Directv Group, Inc. Method and apparatus for controlling paired operation of a conditional access module and an integrated receiver and decoder
US7409562B2 (en) * 2001-09-21 2008-08-05 The Directv Group, Inc. Method and apparatus for encrypting media programs for later purchase and viewing
US20030088773A1 (en) * 2001-11-07 2003-05-08 Koninklijke Philips Electronics N. V. Method of and apparatus for preventing illicit copying of digital content
US7039938B2 (en) * 2002-01-02 2006-05-02 Sony Corporation Selective encryption for video on demand
US7215770B2 (en) * 2002-01-02 2007-05-08 Sony Corporation System and method for partially encrypted multimedia stream
US7218738B2 (en) * 2002-01-02 2007-05-15 Sony Corporation Encryption and content control in a digital broadcast system
US7765567B2 (en) * 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
US7376233B2 (en) * 2002-01-02 2008-05-20 Sony Corporation Video slice and active region based multiple partial encryption
US7242773B2 (en) * 2002-09-09 2007-07-10 Sony Corporation Multiple partial encryption using retuning
US7155012B2 (en) * 2002-01-02 2006-12-26 Sony Corporation Slice mask and moat pattern partial encryption
US7233669B2 (en) * 2002-01-02 2007-06-19 Sony Corporation Selective encryption to enable multiple decryption keys
US7302059B2 (en) * 2002-01-02 2007-11-27 Sony Corporation Star pattern partial encryption
US7823174B2 (en) * 2002-01-02 2010-10-26 Sony Corporation Macro-block based content replacement by PID mapping
ATE470311T1 (de) * 2002-02-22 2010-06-15 Nds Ltd Verarbeitung von verschlüsseltem datenpaketstrom
US7167574B2 (en) * 2002-03-14 2007-01-23 Seiko Epson Corporation Method and apparatus for content-based image copy detection
JP3769236B2 (ja) * 2002-03-15 2006-04-19 株式会社東芝 デジタル情報記録再生システム
US6873905B2 (en) * 2002-03-19 2005-03-29 Opnext Japan, Inc. Communications type navigation device
US7530084B2 (en) * 2002-05-28 2009-05-05 Sony Corporation Method and apparatus for synchronizing dynamic graphics
US20090180025A1 (en) * 2002-05-28 2009-07-16 Sony Corporation Method and apparatus for overlaying graphics on video
JP3737462B2 (ja) * 2002-07-30 2006-01-18 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 情報処理システム、情報通信端末および方法、情報処理装置および方法、記録媒体、並びにプログラム
US8818896B2 (en) * 2002-09-09 2014-08-26 Sony Corporation Selective encryption with coverage encryption
US7398008B2 (en) * 2002-09-19 2008-07-08 Hewlett-Packard Development Company, L.P. Copy protection for analog video signals from computing devices
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
CN100377684C (zh) * 2002-11-15 2008-04-02 乐金电子(天津)电器有限公司 蒸气喷射吸尘器
US7225458B2 (en) * 2002-11-21 2007-05-29 The Directv Group, Inc. Method and apparatus for ensuring reception of conditional access information in multi-tuner receivers
US7000241B2 (en) * 2002-11-21 2006-02-14 The Directv Group, Inc. Method and apparatus for minimizing conditional access information overhead while ensuring conditional access information reception in multi-tuner receivers
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
US9818136B1 (en) 2003-02-05 2017-11-14 Steven M. Hoffberg System and method for determining contingent relevance
US20040165586A1 (en) * 2003-02-24 2004-08-26 Read Christopher Jensen PID filters based network routing
US7409702B2 (en) * 2003-03-20 2008-08-05 Sony Corporation Auxiliary program association table
KR100974448B1 (ko) * 2003-04-24 2010-08-10 엘지전자 주식회사 광디스크의 복사 방지 정보 관리방법
KR100972831B1 (ko) * 2003-04-24 2010-07-28 엘지전자 주식회사 엔크립트된 데이터의 보호방법 및 그 재생장치
KR20040092649A (ko) * 2003-04-24 2004-11-04 엘지전자 주식회사 광디스크의 복사 방지 정보 관리방법
KR100974449B1 (ko) * 2003-04-24 2010-08-10 엘지전자 주식회사 광디스크의 복사 방지 정보 관리방법
US7532804B2 (en) * 2003-06-23 2009-05-12 Seiko Epson Corporation Method and apparatus for video copy detection
EP1646022A4 (en) * 2003-07-14 2010-09-08 Sony Corp METHOD AND DEVICE FOR ENCRYPTION AND DECRYPTION
FR2857813A1 (fr) * 2003-07-16 2005-01-21 St Microelectronics Sa Methode d'insertion de marques de synchronisation dans un flux video, compatible avec un chiffrage par blocs
US20050036067A1 (en) * 2003-08-05 2005-02-17 Ryal Kim Annon Variable perspective view of video images
US20050066357A1 (en) * 2003-09-22 2005-03-24 Ryal Kim Annon Modifying content rating
US7552334B2 (en) * 2003-09-24 2009-06-23 The Boeing Company System and method for presentation integrity
JP4336957B2 (ja) * 2003-09-30 2009-09-30 日本電気株式会社 トランスポートストリームの暗号化装置及び編集装置並びにこれらの方法
US7263187B2 (en) * 2003-10-31 2007-08-28 Sony Corporation Batch mode session-based encryption of video on demand content
US20050097596A1 (en) * 2003-10-31 2005-05-05 Pedlow Leo M.Jr. Re-encrypted delivery of video-on-demand content
US7620180B2 (en) * 2003-11-03 2009-11-17 Sony Corporation Preparation of content for multiple conditional access methods in video on demand
US7343013B2 (en) * 2003-12-16 2008-03-11 Sony Corporation Composite session-based encryption of video on demand content
US20050097597A1 (en) * 2003-10-31 2005-05-05 Pedlow Leo M.Jr. Hybrid storage of video on demand content
US7853980B2 (en) * 2003-10-31 2010-12-14 Sony Corporation Bi-directional indices for trick mode video-on-demand
US7346163B2 (en) * 2003-10-31 2008-03-18 Sony Corporation Dynamic composition of pre-encrypted video on demand content
US20050102702A1 (en) * 2003-11-12 2005-05-12 Candelore Brant L. Cablecard with content manipulation
JP4418431B2 (ja) * 2003-11-14 2010-02-17 パナソニック株式会社 データ処理装置
US7599494B2 (en) * 2004-01-16 2009-10-06 The Directv Group, Inc. Distribution of video content using a trusted network key for sharing content
US7580523B2 (en) * 2004-01-16 2009-08-25 The Directv Group, Inc. Distribution of video content using client to host pairing of integrated receivers/decoders
US7548624B2 (en) * 2004-01-16 2009-06-16 The Directv Group, Inc. Distribution of broadcast content for remote decryption and viewing
US20050169473A1 (en) * 2004-02-03 2005-08-04 Candelore Brant L. Multiple selective encryption with DRM
US7801303B2 (en) 2004-03-01 2010-09-21 The Directv Group, Inc. Video on demand in a broadcast network
US7590243B2 (en) * 2004-05-04 2009-09-15 The Directv Group, Inc. Digital media conditional access system for handling digital media content
US7543317B2 (en) * 2004-08-17 2009-06-02 The Directv Group, Inc. Service activation of set-top box functionality using broadcast conditional access system
US7895617B2 (en) * 2004-12-15 2011-02-22 Sony Corporation Content substitution editor
US8041190B2 (en) 2004-12-15 2011-10-18 Sony Corporation System and method for the creation, synchronization and delivery of alternate content
US7486827B2 (en) * 2005-01-21 2009-02-03 Seiko Epson Corporation Efficient and robust algorithm for video sequence matching
JP4706278B2 (ja) * 2005-02-24 2011-06-22 ソニー株式会社 情報処理システム、再生端末装置および再生方法、情報処理装置および方法、並びにプログラム
US8429004B2 (en) * 2005-04-13 2013-04-23 Store Eyes, Inc. Method and system for automatically measuring retail store display compliance
US7840489B2 (en) * 2005-07-01 2010-11-23 Sony Corporation Key sharing for DRM interoperability
US9325944B2 (en) 2005-08-11 2016-04-26 The Directv Group, Inc. Secure delivery of program content via a removable storage medium
US8874477B2 (en) 2005-10-04 2014-10-28 Steven Mark Hoffberg Multifactorial optimization system and method
US8185921B2 (en) 2006-02-28 2012-05-22 Sony Corporation Parental control of displayed content using closed captioning
US7555464B2 (en) * 2006-03-01 2009-06-30 Sony Corporation Multiple DRM management
US7992175B2 (en) 2006-05-15 2011-08-02 The Directv Group, Inc. Methods and apparatus to provide content on demand in content broadcast systems
US8275132B2 (en) 2006-05-15 2012-09-25 Buchen Neil B System and method for dynamically allocating stream identifiers in a multi-encryption transport system
US8775319B2 (en) 2006-05-15 2014-07-08 The Directv Group, Inc. Secure content transfer systems and methods to operate the same
US8095466B2 (en) 2006-05-15 2012-01-10 The Directv Group, Inc. Methods and apparatus to conditionally authorize content delivery at content servers in pay delivery systems
US8996421B2 (en) 2006-05-15 2015-03-31 The Directv Group, Inc. Methods and apparatus to conditionally authorize content delivery at broadcast headends in pay delivery systems
US8001565B2 (en) 2006-05-15 2011-08-16 The Directv Group, Inc. Methods and apparatus to conditionally authorize content delivery at receivers in pay delivery systems
US9225761B2 (en) 2006-08-04 2015-12-29 The Directv Group, Inc. Distributed media-aggregation systems and methods to operate the same
US9178693B2 (en) 2006-08-04 2015-11-03 The Directv Group, Inc. Distributed media-protection systems and methods to operate the same
CN101014129B (zh) * 2007-03-06 2010-12-15 孟智平 一种视频数据压缩方法
US7917747B2 (en) * 2007-03-22 2011-03-29 Igt Multi-party encryption systems and methods
US8175916B2 (en) * 2007-03-30 2012-05-08 Sharp Kabushiki Kaisha Image forming system and image forming apparatus
JP4876082B2 (ja) * 2008-01-28 2012-02-15 株式会社日立製作所 記録装置及び記録方法
US9535994B1 (en) 2010-03-26 2017-01-03 Jonathan Grier Method and system for forensic investigation of data access
US8997172B2 (en) * 2010-11-08 2015-03-31 Citrix Systems, Inc. Controlling information disclosure during application streaming and publishing
US20120134529A1 (en) * 2010-11-28 2012-05-31 Pedro Javier Vazquez Method and apparatus for applying of a watermark to a video during download
US20120210447A1 (en) * 2010-11-28 2012-08-16 Pedro Javier Vazquez Secure video download method
EP2645917A4 (en) * 2010-12-01 2013-12-04 Techtronic Floor Care Tech Ltd WHEEL ASSEMBLY FOR A VACUUM CLEANER
JP2012016053A (ja) * 2011-09-02 2012-01-19 Hitachi Consumer Electronics Co Ltd ディジタル信号処理装置
US9088805B2 (en) * 2012-02-08 2015-07-21 Vixs Systems, Inc. Encrypted memory device and methods for use therewith
EP3134995B1 (en) 2014-08-07 2021-12-22 DivX, LLC Systems and methods for protecting elementary bitstreams incorporating independently encoded tiles
CN105576589B (zh) * 2014-10-14 2018-02-02 北京星光影视设备科技股份有限公司 随动收放卷缆器阻尼装置
JP2018011645A (ja) * 2016-07-19 2018-01-25 日立アプライアンス株式会社 電気掃除機
CN108652512A (zh) * 2018-04-28 2018-10-16 深圳龙图腾创新设计有限公司 一种家用型玻璃外表面清洁装置
CN111685644B (zh) * 2020-06-23 2021-06-29 泰州鸿材科技有限公司 一种具有自动收放线功能的吸尘器及其使用方法
CN113511564A (zh) * 2020-08-27 2021-10-19 苏州市春菊电器有限公司 一种一键收线的卷线器结构

Family Cites Families (105)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753228A (en) 1971-12-29 1973-08-14 Westinghouse Air Brake Co Synchronizing arrangement for digital data transmission systems
US4405829A (en) 1977-12-14 1983-09-20 Massachusetts Institute Of Technology Cryptographic communications system and method
US4420829A (en) 1981-01-08 1983-12-13 Carlson John E Holographic system for the storage of audio, video and computer data
US4571642A (en) 1981-08-24 1986-02-18 Hofstein Steven R Method of and apparatus for modifying a video signal to prevent the unauthorized recording and reproduction thereof
USRE33189E (en) 1981-11-19 1990-03-27 Communications Satellite Corporation Security system for SSTV encryption
JPS59117395A (ja) 1982-12-24 1984-07-06 Hitachi Ltd 端末処理装置
EP0148235B1 (en) 1983-06-30 1988-10-05 Independent Broadcasting Authority Encrypted broadcast television system
WO1985000718A1 (en) 1983-07-22 1985-02-14 Independent Broadcasting Authority Security system for television signal encryption
US4577216A (en) 1983-11-14 1986-03-18 Macrovision Method and apparatus for modifying the color burst to prohibit videotape recording
US4819098A (en) 1983-11-23 1989-04-04 Macrovision Corporation Method and apparatus for clustering modifications made to a video signal to inhibit the making of acceptable videotape recordings
US4694489A (en) 1983-12-22 1987-09-15 Frederiksen Jeffrey E Video transmission system
US4890319A (en) 1984-09-21 1989-12-26 Scientific-Atlantic, Inc. Method for controlling copying of protected information transmitted over a communications link
GB2180127B (en) 1985-09-04 1989-08-23 Philips Electronic Associated Method of data communication
US4937679A (en) * 1986-08-11 1990-06-26 Macrovision Dual deck video recording apparatus having enhanced copy protection and method for providing enhanced copy protection to such a recording apparatus
US4916738A (en) 1986-11-05 1990-04-10 International Business Machines Corp. Remote access terminal security
US5109413A (en) 1986-11-05 1992-04-28 International Business Machines Corporation Manipulating rights-to-execute in connection with a software copy protection mechanism
US4817140A (en) 1986-11-05 1989-03-28 International Business Machines Corp. Software protection system using a single-key cryptosystem, a hardware-based authorization system and a secure coprocessor
EP0267039A3 (en) 1986-11-05 1990-04-04 Satellite Technology Services, Inc. Video system and method for controlled videotaping
US4796220A (en) 1986-12-15 1989-01-03 Pride Software Development Corp. Method of controlling the copying of software
EP0297539B1 (en) 1987-06-30 1993-09-01 Kabushiki Kaisha Toshiba Recording control apparatus
DE3851724T2 (de) * 1987-07-08 1995-05-04 Matsushita Electric Ind Co Ltd Verfahren und Gerät zum Schutz von Kopiersignalen.
US4999806A (en) 1987-09-04 1991-03-12 Fred Chernow Software distribution system
US4924513A (en) 1987-09-25 1990-05-08 Digital Equipment Corporation Apparatus and method for secure transmission of data over an unsecure transmission channel
US5231546A (en) 1988-02-10 1993-07-27 Matsushita Electric Industrial Co., Ltd. Recording and reproducing apparatus with limited digital copying
US5057947A (en) 1988-02-10 1991-10-15 Matsushita Electric Industrial Co., Ltd. Recording and reproducing apparatus with limited digital copying
JPH0823971B2 (ja) 1988-04-08 1996-03-06 日本ビクター株式会社 符号訂正装置
US4914694A (en) * 1988-04-11 1990-04-03 Eidak Corporation Modifying a television signal to inhibit recording/reproduction
US4871140A (en) 1988-05-20 1989-10-03 Moore Push-Pin Company Hanging device
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
GB8904912D0 (en) 1989-03-03 1989-04-12 Carlyle Investments Limited Telephone support device
US5907443A (en) 1990-05-30 1999-05-25 Canon Kabushiki Kaisha Recording and reproducing apparatus adapted to selectively control the number of copies made
US4964164A (en) 1989-08-07 1990-10-16 Algorithmic Research, Ltd. RSA computation method for efficient batch processing
US5034985A (en) 1989-11-13 1991-07-23 Pitney Bowes Inc. Matched mailing system employing address print array recognition
JPH0727715B2 (ja) 1989-11-24 1995-03-29 シャープ株式会社 ディジタルオーディオインターフェイス信号中継装置
US5003590A (en) * 1989-12-18 1991-03-26 Eidak Corporation Encoding an optical video disc to inhibit video tape recording
JPH03214834A (ja) 1990-01-19 1991-09-20 Canon Inc マルチメデイアネツトワークシステム
JP2751533B2 (ja) 1990-02-26 1998-05-18 ソニー株式会社 記録制御装置
SE464271B (sv) 1990-03-23 1991-03-25 Televerket Foerfarande och anordning foer kryptering/dekryptering av digitalt flerljud i teve
US5054064A (en) * 1990-03-29 1991-10-01 Gte Laboratories Incorporated Video control system for recorded programs
US5058162A (en) 1990-08-09 1991-10-15 Hewlett-Packard Company Method of distributing computer data files
DE4030026A1 (de) 1990-09-22 1992-03-26 Kodak Ag Vorrichtung zur begrenzung einer drehbewegung
US5193176A (en) 1990-10-17 1993-03-09 Powercard Supply C.A. Computer work saving during power interruption
DE69225346T2 (de) 1991-02-07 1998-09-03 Matsushita Electric Ind Co Ltd Verfahren und Vorrichtung zur Übertragung und Reproduktion von einem digitalen Signal
JPH04278262A (ja) 1991-03-05 1992-10-02 Sony Corp ディジタル信号記録再生装置
US5138659A (en) 1991-05-02 1992-08-11 General Instrument Corporation Conversion of television signal formats with retention of common control data stream
US5303294A (en) * 1991-06-18 1994-04-12 Matsushita Electric Industrial Co., Ltd. Video theater system and copy preventive method
US5260999A (en) 1991-06-28 1993-11-09 Digital Equipment Corporation Filters in license management system
US5265164A (en) 1991-10-31 1993-11-23 International Business Machines Corporation Cryptographic facility environment backup/restore and replication in a public key cryptosystem
JP3341291B2 (ja) * 1991-11-22 2002-11-05 ソニー株式会社 受信装置
US5956505A (en) 1991-12-24 1999-09-21 Pitney Bowes Inc. Remote activation of software features in a data processing device
US5215448A (en) * 1991-12-26 1993-06-01 Ingersoll-Dresser Pump Company Combined boiler feed and condensate pump
JP3073590B2 (ja) 1992-03-16 2000-08-07 富士通株式会社 電子化データ保護システム、使用許諾者側装置および使用者側装置
FI96157C (fi) 1992-04-27 1996-05-10 Nokia Mobile Phones Ltd Digitaalinen, solukkorakenteinen aikajakokanavointiin perustuva radiopuhelinverkko radioyhteyden siirtämiseksi tukiasemalta uudelle tukiasemalle
JPH0670282A (ja) 1992-06-16 1994-03-11 Matsushita Electric Ind Co Ltd 映像信号記録再生装置
US5289276A (en) 1992-06-19 1994-02-22 General Electric Company Method and apparatus for conveying compressed video data over a noisy communication channel
EP0582122B1 (en) 1992-07-21 1999-03-24 Matsushita Electric Industrial Co., Ltd. Scramble apparatus and descramble apparatus
JPH0644755A (ja) 1992-07-24 1994-02-18 Sony Corp ビデオ信号の伝送方法及び記録装置
JP3217137B2 (ja) 1992-07-28 2001-10-09 株式会社日立製作所 映像信号記録装置、再生装置及び伝送装置
US5590306A (en) 1992-09-08 1996-12-31 Fuji Photo Film Co., Ltd. Memory card management system for writing data with usage and recording codes made significant
JP3010930B2 (ja) * 1992-09-24 2000-02-21 松下電器産業株式会社 記録再生装置
JP3303368B2 (ja) 1992-11-20 2002-07-22 ソニー株式会社 伝送装置及び方法、伝送システム
US5477276A (en) * 1992-12-17 1995-12-19 Sony Corporation Digital signal processing apparatus for achieving fade-in and fade-out effects on digital video signals
JP3194638B2 (ja) 1993-01-07 2001-07-30 ペルメレック電極株式会社 液中推進装置
US5315448A (en) * 1993-03-18 1994-05-24 Macrovision Corporation Copy protection for hybrid digital video tape recording and unprotected source material
FR2703552A1 (fr) 1993-03-31 1994-10-07 Philips Electronics Nv Procédé et dispositif pour l'embrouillage et le désembrouillage d'une émission déterminée de télévision.
JP3250333B2 (ja) 1993-04-02 2002-01-28 ソニー株式会社 映像信号処理方法、映像信号記録方法、映像信号再生方法、映像信号処理装置、映像信号記録装置及び映像信号再生装置
US5757910A (en) * 1993-04-06 1998-05-26 Goldstar Co., Ltd. Apparatus for preventing illegal copying of a digital broadcasting signal
JP3581377B2 (ja) 1993-04-06 2004-10-27 ソニー株式会社 ディジタル多重伝送方法と装置
KR0184313B1 (ko) * 1993-04-09 1999-05-01 모리시타 요이찌 디지털영상신호를 스크램블 및 디스크램블해서 전송하는 스크램블전송장치
US5442541A (en) 1993-07-23 1995-08-15 Xerox Corporation Enabling features over common communication channel
US5381481A (en) 1993-08-04 1995-01-10 Scientific-Atlanta, Inc. Method and apparatus for uniquely encrypting a plurality of services at a transmission site
FR2710223A1 (fr) 1993-09-15 1995-03-24 Philips Electronics Nv Procédé pour l'embrouillage et le désembrouillage en télévision, et émetteur et récepteur utilisant ce procédé.
US5646992A (en) 1993-09-23 1997-07-08 Digital Delivery, Inc. Assembly, distribution, and use of digital information
JP3500671B2 (ja) 1993-10-08 2004-02-23 ソニー株式会社 ディジタル画像信号の記録及び／又は再生方法、記録及び／又は再生装置及び記録媒体
US5576843A (en) * 1993-10-29 1996-11-19 Time Warner Entertainment Co., L.P. System and method for controlling play of multiple dialog audio tracks of a software carrier
JP2927163B2 (ja) 1993-11-30 1999-07-28 日本ビクター株式会社 情報信号記録方法及び情報信号記録装置
US5495411A (en) 1993-12-22 1996-02-27 Ananda; Mohan Secure software rental system using continuous asynchronous password verification
US5504816A (en) 1994-02-02 1996-04-02 Gi Corporation Method and apparatus for controlling access to digital signals
JP3321972B2 (ja) 1994-02-15 2002-09-09 ソニー株式会社 ディジタル信号記録装置
US5881038A (en) * 1994-04-18 1999-03-09 Matsushita Electric Industrial Co., Ltd. Method and apparatus for preventing illegal copy or illegal installation of information of optical recording medium
US5563946A (en) 1994-04-25 1996-10-08 International Business Machines Corporation Method and apparatus for enabling trial period use of software products: method and apparatus for passing encrypted files between data processing systems
US5513260A (en) * 1994-06-29 1996-04-30 Macrovision Corporation Method and apparatus for copy protection for various recording media
US5659613A (en) 1994-06-29 1997-08-19 Macrovision Corporation Method and apparatus for copy protection for various recording media using a video finger print
US5574787A (en) 1994-07-25 1996-11-12 Ryan; John O. Apparatus and method for comprehensive copy protection for video platforms and unprotected source material
US5715403A (en) 1994-11-23 1998-02-03 Xerox Corporation System for controlling the distribution and use of digital works having attached usage rights where the usage rights are defined by a usage rights grammar
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
US5629980A (en) 1994-11-23 1997-05-13 Xerox Corporation System for controlling the distribution and use of digital works
KR100332743B1 (ko) * 1994-11-26 2002-11-07 엘지전자주식회사 디지탈영상시스템의불법시청및복사방지방법및장치
KR0152788B1 (ko) * 1994-11-26 1998-10-15 이헌조 디지탈 영상 시스템의 복사 방지 방법 및 장치
KR0136458B1 (ko) * 1994-12-08 1998-05-15 구자홍 디지탈 자기 기록재생 시스템의 복사 방지장치
CN100452071C (zh) 1995-02-13 2009-01-14 英特特拉斯特技术公司 用于安全交易管理和电子权利保护的系统和方法
DE69631393T2 (de) 1995-03-29 2004-10-21 Hitachi Ltd Dekoder für komprimierte und multiplexierte Bild- und Audiodaten
JP3617115B2 (ja) * 1995-03-31 2005-02-02 ソニー株式会社 ビデオ信号処理装置および処理方法
US5703859A (en) 1995-09-01 1997-12-30 Sony Corporation Digital video copy protection system
KR0166923B1 (ko) 1995-09-18 1999-03-20 구자홍 디지탈 방송 시스템의 불법 시청 및 복사 방지방법 및 장치
US5689561A (en) 1995-10-06 1997-11-18 Pace; Michael Computer-based trading card system and method
KR0186210B1 (ko) * 1995-11-10 1999-04-15 구자홍 디지탈 데이터의 저작권 보호와 변속 재생을 위한 자기 기록 테이프의 기록방법
US5790664A (en) 1996-02-26 1998-08-04 Network Engineering Software, Inc. Automated system for management of licensed software
US5925127A (en) 1997-04-09 1999-07-20 Microsoft Corporation Method and system for monitoring the use of rented software
CN1179566C (zh) 1998-01-23 2004-12-08 皇家菲利浦电子有限公司 条件性接入
US6009401A (en) 1998-04-06 1999-12-28 Preview Systems, Inc. Relicensing of electronically purchased software
US7069250B2 (en) 2001-10-15 2006-06-27 Payformance Corporation Check based online payment and verification system and method
DE20219124U1 (de) 2002-12-10 2003-04-17 Trw Automotive Safety Sys Gmbh Kontrollsystem für Rastverbindungen
US9626667B2 (en) * 2005-10-18 2017-04-18 Intertrust Technologies Corporation Digital rights management engine systems and methods
US20070204078A1 (en) * 2006-02-09 2007-08-30 Intertrust Technologies Corporation Digital rights management engine systems and methods

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100430697B1 (ko) * 1995-07-25 2004-07-16 소니 가부시끼 가이샤 신호기록장치/신호재생장치및신호기록매체
KR100590147B1 (ko) * 1996-09-05 2006-11-30 소니 가부시끼 가이샤 디지탈인터페이스를구비한디지탈기록장치및그저작권보호방법
KR100779806B1 (ko) * 1996-09-05 2007-11-27 소니 가부시끼 가이샤 디지털 인터페이스를 구비한 디지털 기록 장치 및 그 저작권 보호 방법
KR19980025007A (ko) * 1996-09-27 1998-07-06 이데이 노부유키 디지털 데이터의 저작권 보호 방법 및 보호 시스템
KR100281044B1 (ko) * 1997-12-30 2001-02-01 구자홍 디지털브이씨알의복사방지장치와그방법
KR100700508B1 (ko) * 1999-03-18 2007-03-28 엘지전자 주식회사 멀티미디어 전송시스템의 저작권 보호 장치
KR100386238B1 (ko) * 2001-01-19 2003-06-02 엘지전자 주식회사 디지탈 오디오 복제 방지장치 및 방법

Also Published As

Publication number Publication date
USRE42922E1 (en) 2011-11-15
JPH08252200A (ja) 1996-10-01
HK1068000A1 (en) 2005-04-22
CN1822167A (zh) 2006-08-23
CN1822668A (zh) 2006-08-23
USRE42950E1 (en) 2011-11-22
JP2898591B2 (ja) 1999-06-02
HK1092627A1 (en) 2007-02-09
HK1066131A1 (en) 2005-03-11
US5761302A (en) 1998-06-02
HK1069049A1 (en) 2005-05-06
HK1092626A1 (en) 2007-02-09
CN1822667A (zh) 2006-08-23
CN1268126C (zh) 2006-08-02
EP0717564B1 (en) 2001-08-29
CN1822667B (zh) 2014-03-12
CN1268127C (zh) 2006-08-02
US6347144B1 (en) 2002-02-12
EP0717564A3 (en) 1997-07-16
CN1145576C (zh) 2004-04-14
CN1567993A (zh) 2005-01-19
USRE42951E1 (en) 2011-11-22
CN1131528A (zh) 1996-09-25
DE69522424D1 (de) 2001-10-04
US6028932A (en) 2000-02-22
CN1822166A (zh) 2006-08-23
CN1567993B (zh) 2012-03-28
CN1822668B (zh) 2014-06-25
CN1505399A (zh) 2004-06-16
USRE42921E1 (en) 2011-11-15
JP2824231B2 (ja) 1998-11-11
USRE41074E1 (en) 2010-01-12
JPH08273299A (ja) 1996-10-18
CN1801919A (zh) 2006-07-12
CN1516464A (zh) 2004-07-28
CN1123226C (zh) 2003-10-01
CN1822168A (zh) 2006-08-23
KR0152788B1 (ko) 1998-10-15
USRE39319E1 (en) 2006-10-03
EP0717564A2 (en) 1996-06-19
CN1150737A (zh) 1997-05-28

Similar Documents

Publication Publication Date Title
KR960019110A (ko) 디지탈 영상 시스템의 복사 방지 방법 및 장치
US8929188B2 (en) Content transmitting apparatus for transmitting content with copy control information, content identification information and content status information
US20020150246A1 (en) Additional information embedding device and additional information embedding method
KR970012604A (ko) 신호 기록/재생 방법 및 장치, 신호 기록(기록, 기록가능 또는 기록된) 매체, 신호 송신/수신 방법 및 장치
CN1957417B (zh) 再现方法和再现设备
EP2535896B1 (en) Content assessment apparatus, content assessment method, information reproducing apparatus, and information reproducing method
RU2292092C2 (ru) Способ копирования, устраняющий возможность побитного копирования цифровых данных, и считывающее устройство для его осуществления
KR100611965B1 (ko) 암호화된 오디오 데이터를 저장하는 기록 매체, 그 기록장치와 방법 및 그 재생 장치와 방법
KR100262632B1 (ko) 디브이씨알의 동기신호 검출장치
KR900006955A (ko) 기록 확인 장치
JPH064026A (ja) 許可情報記述方法およびコピーガード付きデータ生成装置
US7146508B2 (en) Image processing apparatus and system and method of same
KR0176131B1 (ko) 디지탈 비디오 카세트 레코더의 기록/재생시 데이타 암호화 처리 방법 및 회로
JP3321884B2 (ja) 同期ブロック検出方法および同期ブロック検出装置
KR0150817B1 (ko) 동화상 재생장치에서의 스타트코드 검출장치
JP2959320B2 (ja) Ｉｄ符号検出方法及びｉｄ符号検出装置
KR940026929A (ko) 디지틀 데이터 처리장치
JP2606549B2 (ja) シンクブロック構成方法
JPH027269A (ja) ディジタル信号伝送装置
JP2000285604A (ja) 再生装置及び再生方法
KR970003114A (ko) 의사동기신호 제거장치
JPH08172605A (ja) デジタル映像信号再生回路
JP2005182937A (ja) デジタル信号再生装置
KR19990018923A (ko) 기록/재생시 보안기능을 구비한 디지탈

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130514

Year of fee payment: 16

FPAY Annual fee payment

Payment date: 20140523

Year of fee payment: 17

EXPY Expiration of term