KR970022973A - 신호 기록 방법 및 장치 - Google Patents

신호 기록 방법 및 장치 Download PDF

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Publication number
KR970022973A
KR970022973A KR1019960044039A KR19960044039A KR970022973A KR 970022973 A KR970022973 A KR 970022973A KR 1019960044039 A KR1019960044039 A KR 1019960044039A KR 19960044039 A KR19960044039 A KR 19960044039A KR 970022973 A KR970022973 A KR 970022973A
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KR
South Korea
Prior art keywords
signal
recording
flag
recording area
analog video
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KR1019960044039A
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English (en)
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KR100415339B1 (ko
Inventor
마사키 오구로
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이데이 노부유키
소니 가부시키가이샤
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Publication of KR970022973A publication Critical patent/KR970022973A/ko
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Publication of KR100415339B1 publication Critical patent/KR100415339B1/ko

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording
    • 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
    • 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
    • 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
    • H04N2005/91314—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 pulse signal inserted in blanking intervals of the video signal, e.g. pseudo-AGC pulses, pseudo-sync pulses
    • 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
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/7824—Television signal recording using magnetic recording on tape with rotating magnetic heads
    • H04N5/7826—Television signal recording using magnetic recording on tape with rotating magnetic heads involving helical scanning of the magnetic tape
    • H04N5/78263—Television signal recording using magnetic recording on tape with rotating magnetic heads involving helical scanning of the magnetic tape for recording on tracks inclined relative to the direction of movement of the tape
    • 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)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

본 장치는 AGC나 칼라 스트라이핑(color striping)과 같은 다양한 기술을 통해 복사 방지를 제공하기 위해 다른 디지탈 VTR이나 다른 아날로그 VTR에 의한 기록이 디지탈 인터페이스와 아날로그 인터페이스 모두를 통해 블록화될 수 있도록 테이프상에 디지탈 비디오 신호를 기록하고 재생한다. 디지탈 기록 포맷은 부호화도니 비디오 신호를 위한 기록 영역과 팩에 구성된 보조 정보를 위한 기록 영역을 포함한다. 방해 신호 발생 플래그는 보조 정보팩(pack)에 포함되어 보조 정보 기록 영역에 기록된다, 플래그의 상태를 근거로, 방해 신호는 부호화된 비디오 신호에서 아날로그 비디오 신호로 재생되는 복사 방지 신호로서 삽입된다.

Description

신호 기록 방법 및 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명을 구체화한 디지탈 VTR에서 한 트랙상의 기록 포맷을 도시한 도면.
제3도는 응용 데이터(APT)에 의해 설정될 때 트랙상의 데이터 구조를 도시한 도면.
제6도는 팩 데이터의 구조를 도시한 도면.

Claims (9)

  1. 부호화된 화상 신호를 위한 화상 기록 영역과 팩으로 구성된 보조 정보를 위한 보조 기록 영역을 포함하는 포맷을 이용해 다수의 디지탈 화상 신호를 기록 매체상에 기록 및 재생하고, 입력 화상 신호를 인코딩하는 단계, 인코드된 입력 화상 신호를 화상 기록 영역에 기록하는 단계, 상기 입력 화상 신호에 대한 복사 방지를 확실히 하도록 보조 정보 팩에 방해 신호를 발생 플래그를 제공하는 단계, 상기 보조 기록 영역에 상기 방해 신호발생 플래그를 기록하는 단계, 아날로그 비디오 신호를 회복하도록 기록된 화상 신호와 방해 신호 발생 플래그를 재생하는 단계, 및 그에 이어지는 기록을 방해하도록 상기 아날로그 비디오 신호에 상기 재생된 방해 신호 발생 플래그의 함수인 방해 신호를 삽입하는 단계를 구비하는 것을 특징으로 하는 방법.
  2. 제1항에 있어서, 상기 방해 신호가 상기 아날로그 비디오 신호의 수직 공백 주기에 삽입되는가 여부를 나타내도록 또 다른 플래그를 제공하는 단계를 더 구비하는 것을 특징으로 하는 방법.
  3. 제1항에 있어서, 상기 방해 신호가 자동 이득 제거(AGC) 신호인 것을 특징으로 하는 방법.
  4. 제1항에 있어서, 상기 방해 신호가 칼라 스트라이프 신호인 것을 특징으로 하는 방법.
  5. 부호화된 화상 신호를 위한 화상 기록 영역과 팩으로 구성된 보조 정보를 위한 보조 기록 영역을 포함하는 포맷을 이용해 다수의 디지탈 화상 신호를 기록 매체상에 기록 및 재생하고, 입력 화상 신호를 인코딩하는 수단, 인코드된 입력 화상 신호를 부호화된 화상 신호를 위한 상기 화상 기록 영역에 기록하는 수단, 상기 입력 화상 신호에 대한 복사 방지를 확실히 하도록 보조 정보 팩에 방해 신호 발생 플래그를 제공하는 수단, 상기 보조 기록 영역에 상기 방해 신호 발생 플래그를 기록하는 수단, 아날로그 비디오 신호를 회복하도록 기록된 화상 신호와 방해 신호 발생 플래그를 재생하는 수단, 및 그에 이어지는 기록을 방해하도록 상기 아날로그 비디오 신호에 상기 재생된 방해 신호 발생 플래그의 함수인 방해 신호를 삽입하는 수단을 구비하는 것을 특징으로 하는 장치.
  6. 제5항에 있어서, 상기 방해 신호가 상기 아날로그 비디오 신호의 수직 공백 주기에 삽입되는가 여부를 나타내도록 또 다른 플래그를 제공하는 단계를 더 구비하는 것을 특징으로 하는 장치.
  7. 제5항에 있어서, 디지털 인터페이스를 통해 상기 방해 신호 발생 플래그를 전달하는 수단을 더 구비하는 것을 특징으로 하는 장치.
  8. 제5항에 있어서, 상기 방해 신호가 자동 이득 제어(AGC) 신호인 것을 특징으로 하는 장치.
  9. 제5항에 있어서, 상기 방해 신호가 칼라 스트라이프 신호인 것을 특징으로 하는 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960044039A 1995-10-05 1996-10-05 디지탈화상신호기록및재생방법및장치 KR100415339B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP95-284690 1995-10-05
JP28469095A JP3341546B2 (ja) 1995-10-05 1995-10-05 デジタル画像信号の記録再生方法及び記録再生装置

Publications (2)

Publication Number Publication Date
KR970022973A true KR970022973A (ko) 1997-05-30
KR100415339B1 KR100415339B1 (ko) 2004-05-06

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KR1019960044039A KR100415339B1 (ko) 1995-10-05 1996-10-05 디지탈화상신호기록및재생방법및장치

Country Status (4)

Country Link
US (1) US5907655A (ko)
JP (1) JP3341546B2 (ko)
KR (1) KR100415339B1 (ko)
CN (1) CN1122409C (ko)

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KR100519179B1 (ko) * 1996-10-15 2005-11-28 소니 가부시끼 가이샤 비디오신호를처리하는방법및장치와저장매체

Also Published As

Publication number Publication date
JP3341546B2 (ja) 2002-11-05
CN1122409C (zh) 2003-09-24
US5907655A (en) 1999-05-25
KR100415339B1 (ko) 2004-05-06
CN1157532A (zh) 1997-08-20
JPH09102929A (ja) 1997-04-15

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