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KR940015977A - 비디오 신호 재생 장치 - Google Patents

비디오 신호 재생 장치 Download PDF

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Publication number
KR940015977A
KR940015977A KR1019930030162A KR930030162A KR940015977A KR 940015977 A KR940015977 A KR 940015977A KR 1019930030162 A KR1019930030162 A KR 1019930030162A KR 930030162 A KR930030162 A KR 930030162A KR 940015977 A KR940015977 A KR 940015977A
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KR
South Korea
Prior art keywords
video signal
reproducing apparatus
frame
pair
head
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KR1019930030162A
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English (en)
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KR100253041B1 (ko
Inventor
유까 오이까와
Original Assignee
오오가 노리오
소니 가부시끼가이샤
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Publication of KR940015977A publication Critical patent/KR940015977A/ko
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Publication of KR100253041B1 publication Critical patent/KR100253041B1/ko

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • G11B15/125—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams conditioned by the operating function of the apparatus
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/1808—Driving of both record carrier and head
    • G11B15/1875—Driving of both record carrier and head adaptations for special effects or editing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
    • 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
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
    • G11B5/00878—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes transducing different track configurations or formats on the same tape
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
    • G11B5/53—Disposition or mounting of heads on rotating support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
    • H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • 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
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate
    • 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
    • H04N9/8047—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 using transform coding
    • 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
    • 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
    • H04N5/78266—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 using more than one track for the recording of one television field or frame, i.e. segmented 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
    • H04N5/917—Television signal processing therefor for bandwidth reduction
    • H04N5/919—Television signal processing therefor for bandwidth reduction by dividing samples or signal segments, e.g. television lines, among a plurality of recording channels
    • 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
    • H04N9/87—Regeneration of colour television signals
    • H04N9/88—Signal drop-out compensation
    • H04N9/888—Signal drop-out compensation for signals recorded by pulse code modulation
    • 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
    • H04N9/87—Regeneration of colour television signals
    • H04N9/89—Time-base error compensation
    • H04N9/896—Time-base error compensation using a digital memory with independent write-in and read-out clock generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

〈목적〉 1프레임은 10개의 트랙으로 분할해서 기록한 트랙패턴의 변속 재생시에, 자연스럽고 보기 쉬운 화상을 재생한다.
〈구성〉 더블 방위 헤드를 써서 재생할때는, 테이프 속도를 5n±0.5배(n은 0 이외의 정수)에 설정한다. 이 속도로 설정하면, 헤드는 1주사마다 다음의 프레임의 인접한 트랙을 주사하므로, 다수 프레임의 재생 데이타가 트랙 방향으로 이어진다. 마찬가지로, 180°대향 헤드를 써서 재생할때는 테이프 속도를 5n±0.25배(n은 ±1,±3,±5,…)로 설정한다. 데이타 판독율이 50%보다 작은 경우는 더블 방위 헤드를 써서 재생할 때 5n±0.25배, 180°대향 헤드를 써서 재생할때 5n±0.125배로 설정한다.

Description

비디오 신호 재생 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 실시예에 의한 비디오 신호 기록 재생 장치의 비디오 신호 처리계의 구성을 도시하는 블럭도, 제2도는 본 발명의 실시예에 의한 비디오 신호 기록 재생장치의 회전 드럼과 자기 헤드 관계의 1예를 도시하는 도면, 제3도는 제2도에 도시한 기록 재생 헤드가 형성하는 트랙의 패턴을 도시하는 도면, 제4도는 본 발명의 실시예에 의한 비디오 신호 재생 기록 장치의 회전 드럼과, 자기 헤드 관계 다른 1예를 도시하는 도면.

Claims (6)

  1. 서로 방위각이 상이한 1쌍의 기록 헤드에 의해서, 1프레임의 비디오 신호를 2m개(단, m은 1이상의 정수)의 경사트랙으로 하고, 자기 테이프에 기록된 트랙 패턴을 재생하는 비디오 신호 재생 장치에 있어서, 회전 드럼의 근접한 위치에 설치된 서로 방위각이 상이한 1쌍의 재생 헤드를 구비하는 동시에, 상기 자기 테이프의 주행 속도를 기록시의 m×n±0.5배 또는 m×n±0.25배(단, n은 0이외의 정수)로 설정하는 것을 특징으로 하는 비디오 신호 재생 장치.
  2. 서로 방위각이 상이한 1쌍의 기록 헤드에 의해서, 1프레임의 비디오 신호를 2m개(단, m은 1이상의 정수)의 경사진 트랙으로 하고, 또한 1프레임마다 1프레임을 구성하는 데이타를 인접한 트랙간에서 서로 교체하고 기록한 트랙 패턴을 재생하는 비디오 신호 재생 장치에 있어서, 회전 드럼의 180°대향한 위치에 설치된 서로 방위각이 다른 1쌍의 재생 헤드를 구비하는 동시에 상기 자기 테이프의 주행 속도를 기록시의 m×n±0.25배 또는 m×n±0.125배(단, n은 ±1,±3,±5,…)에 설정하는 것을 특징으로 하는 비디오 신호 재생 장치.
  3. 제1항 또는 제2항에 있어서, 데이타 판독율에 따라서 배속도비의 소수 부분을 선택하는 것을 특징으로 하는 비디오 신호 재생 장치.
  4. 제1항 또는 제 2항에 있어서, m이 5또는 6중의 어느 한쪽인 것을 특징으로 하는 비디오 신호 재생 장치.
  5. 제3항에 있어서, 기록하는 비디오 신호가 NTSC신호이며, m이 5인 것을 특징으로 하는 비디오 신호 재생 장치.
  6. 제3항에 있어서, 기록하는 비디오 신호가 PAL 신호이며, m이 6인 것을 특징으로 하는 비디오 신호 재생 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930030162A 1992-12-25 1993-12-24 비디오 신호 재생 장치 KR100253041B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP35952292 1992-12-25
JP92-359522 1992-12-25
JP5657693A JP3546434B2 (ja) 1992-12-25 1993-02-22 ビデオ信号再生装置
JP93-56576 1993-02-22

Publications (2)

Publication Number Publication Date
KR940015977A true KR940015977A (ko) 1994-07-22
KR100253041B1 KR100253041B1 (ko) 2000-05-01

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US (2) US5434677A (ko)
EP (1) EP0603875B1 (ko)
JP (1) JP3546434B2 (ko)
KR (1) KR100253041B1 (ko)
CA (1) CA2112430C (ko)
DE (1) DE69323973T2 (ko)

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EP0603875A2 (en) 1994-06-29
EP0603875B1 (en) 1999-03-17
CA2112430C (en) 2003-05-06
US5434677A (en) 1995-07-18
JP3546434B2 (ja) 2004-07-28
CA2112430A1 (en) 1994-06-26
JPH06245184A (ja) 1994-09-02
USRE37810E1 (en) 2002-07-30
KR100253041B1 (ko) 2000-05-01
EP0603875A3 (en) 1995-01-04
DE69323973D1 (de) 1999-04-22
DE69323973T2 (de) 1999-07-22

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