KR950007491A - Video signal recording and recording player using discriminant signal - Google Patents

Video signal recording and recording player using discriminant signal Download PDF

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Publication number
KR950007491A
KR950007491A KR1019930017215A KR930017215A KR950007491A KR 950007491 A KR950007491 A KR 950007491A KR 1019930017215 A KR1019930017215 A KR 1019930017215A KR 930017215 A KR930017215 A KR 930017215A KR 950007491 A KR950007491 A KR 950007491A
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South Korea
Prior art keywords
signal
discrimination
horizontal
discrimination signal
sync
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KR1019930017215A
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Korean (ko)
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KR950014339B1 (en
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정상철
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배순훈
대우전자 주식회사
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Publication of KR950007491A publication Critical patent/KR950007491A/en
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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

본 발명은 기록시 테이프 내용 판별신호를 삽입하여 재생시 삽입된 판별신호의 검출에 의해서 테이프를 판별하게 하는 테이프 내용 판별신호 삽입회로와 테이프 내용 판별신호의 검출회로를 제공하는 것이며, 또한 이들 요소가 일체화 된 비디오 테이프 레코더를 제공하기 위한 것으로, 영상신호 기록기는 기록하고자 하는 복합영상신호의 동기신호를 추출하는 동기신호 분리부와, 분리된 동기신호로부터 수평동기신호를 카운트하는 수평동기신호카운터와, 소정의 카운트된 수평동기신호 펄스에 판별신호를 삽입하기 위한 판별신호 발생부와, 판별신호를 입력된 영상신호의 수평동기신호에 삽입하는 신호합성부로 구성하고, 영상녹화 재생기는 수평동기신호중 포함된 프로 내용 판밸신호를 갖는 복합영상신호의 동기신호를 추출하는 동기신호 분리부와, 분리된 동기신호로부터 수평동기신호를 카운트하는 수평동기신호 카운터와, 소정의 카운트된 수평동기신호 펄스에서 판별신호를 생성하기 위한 판별신호 발생부와, 소정의 카운트된 수평동기신호 펄스에서 입력된 복합영상신호의 판별신호를 추출하는 판별신호 검출부와, 판별신호 발생부와 판별신호 검출부의 출력을 비교하는 비교수단으로 구성한 것이다.The present invention provides a tape content discrimination signal insertion circuit and a tape content discrimination signal detection circuit for inserting a tape content discrimination signal during recording to discriminate a tape by detecting a discrimination signal inserted during reproduction. In order to provide an integrated video tape recorder, the video signal recorder includes: a sync signal separator for extracting a sync signal of a composite video signal to be recorded; a horizontal sync signal counter for counting a horizontal sync signal from the separated sync signal; And a discrimination signal generator for inserting the discrimination signal into the predetermined counted horizontal synchronizing signal pulses, and a signal synthesizing unit for inserting the discrimination signal into the horizontal synchronizing signal of the input video signal. Synchronization signal separation for extracting synchronization signal of composite video signal with professional content And a horizontal synchronous signal counter for counting horizontal synchronous signals from the separated synchronous signals, a discrimination signal generator for generating a discrimination signal from predetermined counted horizontal synchronous signal pulses, and a predetermined counted horizontal synchronous signal pulses. And a discrimination signal detector for extracting the discrimination signal of the composite video signal, and a comparison means for comparing the outputs of the discrimination signal generator and the discrimination signal detector.

Description

판별신호를 사용하는 영상신호 기록 및 영상녹화 재생기Video signal recording and recording player using discriminant signal

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 영상신호 기록기의 판별신호 삽입회로를 위한 블록도,1 is a block diagram for a discrimination signal insertion circuit of an image signal recorder according to the present invention;

제2도는 본 발명에 따른 영상신호 재생기의 판별신호 검출회로를 위한 블록도,2 is a block diagram for a discrimination signal detection circuit of a video signal player according to the present invention;

제3도는 본 발명의 판별신호를 설명하는 동기신호 파형도.3 is a synchronization signal waveform diagram illustrating a discrimination signal of the present invention.

Claims (5)

기록하고자 하는 복합영상신호의 동기신호를 추출하는 동기신호 분리부와; 분리된 동기신호로 부터 수평동기신호를 카운트하는 수평동기 신호 카운터와 ; 소정의 카운트된 수평동기신호 펄스에 판별신호를 삽입하기 위한 판별신호 발생부와 ; 판별신호를 입력된 상기 영상신호의 수평동기신호에 삽입하는 신호합성부로 이루어진 판별신호를 사용하는 영상신호 기록기.A sync signal separator for extracting a sync signal of the composite video signal to be recorded; A horizontal synchronous signal counter for counting horizontal synchronous signals from the separated synchronous signals; A discrimination signal generator for inserting a discrimination signal into a predetermined counted horizontal synchronizing signal pulse; And a discriminating signal comprising a signal synthesizing section for inserting a discriminating signal into a horizontal synchronous signal of the input video signal. 제1항에 있어서, 상기 판별신호는 수평동기신호 레벨을 기준으로 상하로 교번하는 수평동기신호의 주파수보다 높은 펄스인 것을 특징으로 하는 판별신호를 사용하는 영상신호 기록기.The image signal recorder using a discrimination signal according to claim 1, wherein the discrimination signal is a pulse higher than a frequency of a horizontal synchronizing signal alternately up and down based on a horizontal synchronizing signal level. 수평동기신호중 포함된 프로 내용 판별신호를 갖는 복합영상 신호의 동기신호를 추출하는 동기신호 분리부와 ; 분리된 동기신호로부터 수평동기신호를 카운트하는 수평동기신호 카운터와 ; 소정의 카운트된 수평동기신호 펄스에서 판별신호를 생성하기 위한 판별신호 발생부와 ; 상기 소정의 카운트된 수평동기신호 펄스에서 입력된 복합영상 신호의 판별신호를 추출하는 판별신호 검출부와 ; 상기 판별신호 발생부와 판별신호 검출부의 출력을 비교하는 비교수단으로 이루어진 판별신호를 사용하는 영상녹화 재생기.A synchronization signal separation unit for extracting a synchronization signal of the composite video signal having the pro content discrimination signal included in the horizontal synchronization signal; A horizontal synchronous signal counter for counting horizontal synchronous signals from the separated synchronous signals; A discrimination signal generator for generating a discrimination signal from a predetermined counted horizontal synchronizing signal pulse; A discrimination signal detector for extracting a discrimination signal of the composite video signal inputted from the predetermined counted horizontal sync signal pulses; And a discrimination signal comprising a comparison means for comparing outputs of the discrimination signal generator and the discrimination signal detector. 제3항에 있어서, 상기 비교수단의 출력은 VTR비디오/오디오 뮤팅부에 연결되는 것을 특징으로 하는 판별신호를 사용하는 영상녹화 재생기.4. The video recording and reproducing apparatus according to claim 3, wherein the output of said comparing means is connected to a VTR video / audio muting unit. 제3항에 있어서, 상기 판별신호는 수평동기신호 레벨을 기준으로 상하로 교번하는 수평동기신호의 주파수보다 높은 펄스인 것을 특징으로 하는 판별신호를 사용하는 영상녹화 재생기.4. The video recording and reproducing apparatus according to claim 3, wherein the discrimination signal is a pulse higher than a frequency of the horizontal synchronizing signal alternately up and down on the basis of the horizontal synchronizing signal level. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930017215A 1993-08-31 1993-08-31 Image signal reading/writing apparatus KR950014339B1 (en)

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Application Number Priority Date Filing Date Title
KR1019930017215A KR950014339B1 (en) 1993-08-31 1993-08-31 Image signal reading/writing apparatus

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Application Number Priority Date Filing Date Title
KR1019930017215A KR950014339B1 (en) 1993-08-31 1993-08-31 Image signal reading/writing apparatus

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KR950007491A true KR950007491A (en) 1995-03-21
KR950014339B1 KR950014339B1 (en) 1995-11-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100492000B1 (en) * 1997-12-10 2005-08-29 주식회사 팬택앤큐리텔 Frequency Down Converter for Base Stations in Wireless Subscriber Network System

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100492000B1 (en) * 1997-12-10 2005-08-29 주식회사 팬택앤큐리텔 Frequency Down Converter for Base Stations in Wireless Subscriber Network System

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