KR890002850A - 저역 색신호 변환장치 - Google Patents

저역 색신호 변환장치 Download PDF

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Publication number
KR890002850A
KR890002850A KR1019880002571A KR880002571A KR890002850A KR 890002850 A KR890002850 A KR 890002850A KR 1019880002571 A KR1019880002571 A KR 1019880002571A KR 880002571 A KR880002571 A KR 880002571A KR 890002850 A KR890002850 A KR 890002850A
Authority
KR
South Korea
Prior art keywords
signal
multiplier
output
low
frequency
Prior art date
Application number
KR1019880002571A
Other languages
English (en)
Other versions
KR910004292B1 (ko
Inventor
히로미쓰 야마시다
Original Assignee
시기 모리야
미쓰비시 떼끼 가부시끼가이샤
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
Application filed by 시기 모리야, 미쓰비시 떼끼 가부시끼가이샤 filed Critical 시기 모리야
Publication of KR890002850A publication Critical patent/KR890002850A/ko
Application granted granted Critical
Publication of KR910004292B1 publication Critical patent/KR910004292B1/ko

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Classifications

    • 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
    • H04N9/83—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 the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal
    • H04N9/84—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 the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal the recorded signal showing a feature, which is different in adjacent track parts, e.g. different phase or frequency
    • 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

Landscapes

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

Abstract

내용 없음

Description

저역 색신호 변환장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 일실시예에 의한 저역 색신호 변환장치를 표시한 블록도, 제2도는 종래의 저역 색신호 변환장치를 표시한 블록도.

Claims (1)

  1. 색부반송파 신호를 저역변환 하기위한 장치로서 제1의 승산기와 로우패스필터와 전압제어발진기와 제1의 분주기와로 되고 제1의 승산기와 일방의 입력단자에는 수평동기신호에 동기한 신호가 타방의 입력단자에서 상기 전압제어발진기의 출력을 상기 제1의 분주기로 소정의 비에 분주한 신호가 각각 입력되며, 상기 제1의 승산기의 출력신호는 상기 로우패스필터를 개재하여 상기 전압제어 발진기의 제어단자에 입력되도록 구성되어서는 자동주파수 제어루프와 상기 전압제어 발진기의 출력을 소정의 분주비로 분주하는 제2의 분주기와 당해 제2의 분주기의 분주출력과 저역변화 하여야할 색부반송파 신호와를 승산하는 제2의 승산기와 당해 제2의 승산기의 승산출력에서 저역변환된 색신호를 인출하는 저역색신호 추출수단과를 구비하고 상기 제 2의 분주기의 부주출력의 주파수가 상기 색부반송파신호의 주파수와 상기 저역색신호의 주파수와의 합산 또는 차이에 동등하여지도록 상기 제1및 제2의분주기의 분주비를 설정한 것을 특징으로 하는 저역색신호 변환장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880002571A 1987-07-30 1988-03-11 저역 색신호 변환장치 KR910004292B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62191694A JPS6436186A (en) 1987-07-30 1987-07-30 Low frequency chrominance signal converter
JP87-191694 1987-07-30
JP62-191694 1987-07-30

Publications (2)

Publication Number Publication Date
KR890002850A true KR890002850A (ko) 1989-04-11
KR910004292B1 KR910004292B1 (ko) 1991-06-25

Family

ID=16278911

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880002571A KR910004292B1 (ko) 1987-07-30 1988-03-11 저역 색신호 변환장치

Country Status (3)

Country Link
US (1) US4956719A (ko)
JP (1) JPS6436186A (ko)
KR (1) KR910004292B1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100594421B1 (ko) * 1999-12-23 2006-07-03 주식회사 엘지이아이 냉장고 기계실의 공기순환모터 장착구조

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172217A (en) * 1990-03-01 1992-12-15 John Perkins Transcoder for spatial manipulation of composite color television signals
US5097347A (en) * 1990-11-01 1992-03-17 Samsung Electronics Co., Ltd. Method and apparatus for generating a playback clock from a 2.5 MHz chroma PLL
EP0932268B1 (en) * 1998-01-27 2006-08-16 Matsushita Electric Industrial Co., Ltd. FM signal optical transmission apparatus
KR102100331B1 (ko) 2008-12-19 2020-04-13 가부시키가이샤 한도오따이 에네루기 켄큐쇼 전자기기의 구동방법
EP2394263B1 (en) 2009-02-06 2021-05-05 Semiconductor Energy Laboratory Co, Ltd. Method for driving display device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5953754B2 (ja) * 1977-09-26 1984-12-26 松下電器産業株式会社 カラ−テレビジヨン信号の記録再生方式
GB2059107B (en) * 1979-07-12 1983-06-02 Universal Pioneer Corp Tangential servo control signal generating device
JPS5845257B2 (ja) * 1980-06-16 1983-10-07 古河電気工業株式会社 コンクリ−トピツトにおけるアルミニウム製蓋体の固定方法
JPS58161595A (ja) * 1982-03-19 1983-09-26 Toshiba Corp カラ−テレビジヨン信号変換回路
JPS59186491A (ja) * 1983-04-07 1984-10-23 Victor Co Of Japan Ltd カラ−映像信号記録再生装置
US4754340A (en) * 1983-11-01 1988-06-28 Matsushita Electric Industrial Co., Ltd. Method of reproducing a chrominance signal from a previously low-range-converted chrominance signal using comb filtering and sampling
JPS60127893A (ja) * 1983-12-15 1985-07-08 Sony Corp カラ−テレビジヨン信号伝送方式
JPS6118288A (ja) * 1984-07-04 1986-01-27 Hitachi Ltd 磁気記録装置
EP0253296B1 (en) * 1986-07-17 1992-12-02 Sanyo Electric Co., Ltd. Frequency converter for video tape recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100594421B1 (ko) * 1999-12-23 2006-07-03 주식회사 엘지이아이 냉장고 기계실의 공기순환모터 장착구조

Also Published As

Publication number Publication date
US4956719A (en) 1990-09-11
KR910004292B1 (ko) 1991-06-25
JPS6436186A (en) 1989-02-07

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