KR910019045A - Rf모듈레이터 - Google Patents

Rf모듈레이터 Download PDF

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Publication number
KR910019045A
KR910019045A KR1019910006486A KR910006486A KR910019045A KR 910019045 A KR910019045 A KR 910019045A KR 1019910006486 A KR1019910006486 A KR 1019910006486A KR 910006486 A KR910006486 A KR 910006486A KR 910019045 A KR910019045 A KR 910019045A
Authority
KR
South Korea
Prior art keywords
channel
signal
oscillation
voice
converter
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
KR1019910006486A
Other languages
English (en)
Other versions
KR930011597B1 (ko
Inventor
히로유시 모리
시게다카 사와
Original Assignee
아오이 죠이치
가부시키가이샤 도시바
오시마 고타로
도시바 오디오·비디오 엔지니어링 가부시키가이샤
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 아오이 죠이치, 가부시키가이샤 도시바, 오시마 고타로, 도시바 오디오·비디오 엔지니어링 가부시키가이샤 filed Critical 아오이 죠이치
Publication of KR910019045A publication Critical patent/KR910019045A/ko
Application granted granted Critical
Publication of KR930011597B1 publication Critical patent/KR930011597B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

내용 없음

Description

RF모듈레이터
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 1실시예에 따른 구성의 블럭도, 제2도(a), (b)는 각각 제2도중의 일부의 회로의 동작을 설명하기 위한 파형도, 제3도(a)(b)는 각각 제1도 및 제4도중의 일부의 회로의 동작을 설명하기 위한 특성도.

Claims (1)

  1. 설정되는 챈널의 정보를 디지탈 변환시키는 A/D컨버터(19)와, 상기 A/D컨버터(19)에 의해 디지탈화된 챈널 설정데이터를 기초로 음성 챈널발진과 RF챈널발진을 공통으로 제어하는 발진기제어회로(18), 상기 RF캐리어 발진의 주파수에 따라 AM변조되는 영상신호와 상기 음성 캐리어발진의 주파수에 따라 FM/AM변조되는 음성신호를 합성하는 신호합 합성수단(21), 상기 챈널설정데이터의 각 챈널의 중심부근을 포착하는 챈널포착수단(3) 및, 상기 챈널 포착수단(1)로부터 벗어난 각 챈널 설정단부에 있어서 영상 입력신호를 차단하는 신호차단수단(3)을 구비한 것을 특징으로 하는 RF모듈레이터.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910006486A 1990-04-23 1991-04-23 Rf모듈레이터 Expired - Fee Related KR930011597B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP02-107151 1990-04-23
JP2107151A JP2553219B2 (ja) 1990-04-23 1990-04-23 Ｒｆモジュレータ及びそれを内蔵するビデオカセットレコーダ
JP?2-107151 1990-04-23

Publications (2)

Publication Number Publication Date
KR910019045A true KR910019045A (ko) 1991-11-30
KR930011597B1 KR930011597B1 (ko) 1993-12-13

Family

ID=14451803

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910006486A Expired - Fee Related KR930011597B1 (ko) 1990-04-23 1991-04-23 Rf모듈레이터

Country Status (5)

Country Link
US (1) US5136387A (ko)
EP (1) EP0452976B1 (ko)
JP (1) JP2553219B2 (ko)
KR (1) KR930011597B1 (ko)
DE (1) DE69120335T2 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5369445A (en) * 1992-06-12 1994-11-29 Samsung Electronics Co., Ltd. Noise reducing apparatus and methods for television receivers
US6118497A (en) * 1998-03-11 2000-09-12 Thomson Consumer Electronics, Inc. Interactive selection system for a video decoder modulator channel
KR100550875B1 (ko) * 2004-02-27 2006-02-10 삼성전기주식회사 협대역 밴드패스 필터를 포함하는 고주파 모듈레이터

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778718A (en) * 1972-04-28 1973-12-11 Avco Corp Modulation system
FR2437117A1 (fr) * 1978-09-22 1980-04-18 Lgt Lab Gen Telecomm Systeme de transmission en modulation d'amplitude a haute performance et emetteur et reemetteur de television comportant un tel systeme
US4286336A (en) * 1979-02-08 1981-08-25 Rca Corporation Automatic shutdown arrangement for stand-alone television modulator
JPS583672U (ja) * 1981-07-01 1983-01-11 アルプス電気株式会社 Ｒｆ変調装置
US4491871A (en) * 1982-12-06 1985-01-01 Rca Corporation Audio-visual diplexed television transmitter in which the aural signal can be multiplexed without switching
JPS60220683A (ja) * 1984-04-17 1985-11-05 Murata Mfg Co Ltd Ｖｔｒのｒｆモジユレ−タ

Also Published As

Publication number Publication date
EP0452976A3 (en) 1993-02-10
US5136387A (en) 1992-08-04
DE69120335T2 (de) 1996-12-12
DE69120335D1 (de) 1996-07-25
KR930011597B1 (ko) 1993-12-13
JPH0418876A (ja) 1992-01-23
EP0452976A2 (en) 1991-10-23
EP0452976B1 (en) 1996-06-19
JP2553219B2 (ja) 1996-11-13

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