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KR900017384A - 텔레비젼 수상기 - Google Patents

텔레비젼 수상기 Download PDF

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Publication number
KR900017384A
KR900017384A KR1019900004882A KR900004882A KR900017384A KR 900017384 A KR900017384 A KR 900017384A KR 1019900004882 A KR1019900004882 A KR 1019900004882A KR 900004882 A KR900004882 A KR 900004882A KR 900017384 A KR900017384 A KR 900017384A
Authority
KR
South Korea
Prior art keywords
signal
band filter
television receiver
filter
band
Prior art date
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Application number
KR1019900004882A
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English (en)
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KR0176246B1 (ko
Inventor
워드 뮤터스파우그 맥스
데이빗 앤더슨 윌리엄
Original Assignee
피터 엠. 엠마뉴엘
톰슨 컨슈머 일렉트로닉스 인코포레이티드
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Publication of KR900017384A publication Critical patent/KR900017384A/ko
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Publication of KR0176246B1 publication Critical patent/KR0176246B1/ko
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Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/02—Transference of modulation from one carrier to another, e.g. frequency-changing by means of diodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Superheterodyne Receivers (AREA)
  • Noise Elimination (AREA)

Abstract

내용 없음

Description

텔레비젼 수상기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 하나의 실시예를 포함하는 블럭다이어그램,
제2도는 제1도의 제1필터의 진폭 대 주파수 대역 응답의 그래프도,
제3도는 본 발명의 실시예를 포함하는 텔레비젼 동조기의 개략도.

Claims (7)

  1. 각각 비디오 및 소리 정보를 변조하는 소리 캐리어 및 화상 캐리어를 가진 각각 다수의 채널로 분할하는 라디오 주파수(RF)신호 입력 소스를 가지는 텔레비젼 수상기로서, RF신호 처리용 장치는 중간 주파수 신호의 단일 주파수 범위로 다수의 채널중 선택된 하나의 채널을 변환하기 위해 상기 RF신호 수신용으로 구성된 수동균형 믹서(14)를 구비하며, 필터 수단은 상기 중간 주파수 신호로부터 바람직하지 못한 인접 채널의 소리 및 비디오 캐리어를 여과하기 위해 균형 믹서(14)에 연결된 제1의 대역 필터(18)와, 변조된 비디오 및 오디오 정보를 유도하기 위해 IF신호의 다른 대역 필터링 및 치리용으로 상기 제1대역 필터(18)에 연결된 제2대역 필터(22)를 특징으로 하는 텔레비젼 수상기.
  2. 제1항에 있어서, 상기 수동 균형 믹서(14)는 단일 균형 믹서인 텔레비젼 수상기.
  3. 제2항에 있어서, 상기 믹서(14)에 대해 증폭된 RF신호 전달과 RF신호를 증폭용으로 RF증폭기(12)를 구비하는 텔레비젼 수상기.
  4. 제1항에 있어서, 상기 제1대역 필터(18)는 최소한 이중 동조되는 텔레비젼 수상기.
  5. 제4항에 있어서, 상기 제1대역 필터(18)는 버터워드 필터로서 구성되는 텔레비젼 수상기.
  6. 제1항에 있어서, 상기 제2대역 필터(22)에 대해 증폭된 IF신호를 전달하고 제1대역 필터의 출력을 증폭용으로 제1대역 필터(18)에 연결된 증폭기(20)를 구비하는 텔레비젼 수상기.
  7. 제6항에 있어서, 상기 제2대역 필터(22)는 표면 음향파 필터를 구비하는 텔레비젼 수상기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900004882A 1989-04-13 1990-04-10 균형 믹서 및 출력 필터를 갖는 텔레비젼 장치 Expired - Fee Related KR0176246B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/337,798 US5034994A (en) 1989-04-13 1989-04-13 Single balanced mixer with output filter
US337,798 1989-04-13

Publications (2)

Publication Number Publication Date
KR900017384A true KR900017384A (ko) 1990-11-16
KR0176246B1 KR0176246B1 (ko) 1999-05-01

Family

ID=23322057

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900004882A Expired - Fee Related KR0176246B1 (ko) 1989-04-13 1990-04-10 균형 믹서 및 출력 필터를 갖는 텔레비젼 장치

Country Status (3)

Country Link
US (1) US5034994A (ko)
JP (1) JPH02295230A (ko)
KR (1) KR0176246B1 (ko)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0396180A (ja) * 1989-09-08 1991-04-22 Sony Corp 受信装置
JPH03160803A (ja) * 1989-11-20 1991-07-10 Pioneer Electron Corp バランスドミキサー回路
JPH042148U (ko) * 1990-04-20 1992-01-09
US5170500A (en) * 1990-08-03 1992-12-08 Goldstar Products Co., Limited Intermediate frequency circuit for cellular telephone transceiver using surface acoustic wave filter
JPH04373279A (ja) * 1991-06-21 1992-12-25 Sony Corp 受信装置
US5285179A (en) * 1992-08-28 1994-02-08 Thomson Consumer Electronics, Inc. Double tuned circuit with balanced output and image trap
US5428404A (en) * 1993-01-29 1995-06-27 Scientific-Atlanta, Inc. Apparatus for method for selectively demodulating and remodulating alternate channels of a television broadcast
JP2895706B2 (ja) * 1993-04-20 1999-05-24 三菱電機株式会社 映像中間周波回路
US5893030A (en) * 1994-05-25 1999-04-06 Oki Telecom Dual-function double balanced mixer circuit
GB9503064D0 (en) * 1995-02-16 1995-04-05 Philips Electronics Uk Ltd Improvements in or relating to zero IF receivers
DE19611879A1 (de) * 1995-05-15 1996-11-21 Charles Machine Works Bandpaßfilter für Vorverstärker
JP4343374B2 (ja) * 2000-01-13 2009-10-14 株式会社アドバンテスト シングルバランスミキサ
US7075389B1 (en) * 2000-05-25 2006-07-11 Motorola Inc. Method and apparatus for achieving broadband matching of narrow-band resonator filter impedances to loads and sources
US6810241B1 (en) * 2002-01-30 2004-10-26 Northrop Grumman Corporation Microwave diode mixer
US7454184B2 (en) * 2003-12-02 2008-11-18 Skyworks Solutions, Inc. DC offset cancellation in a wireless receiver
US7606551B2 (en) * 2006-03-01 2009-10-20 Siemens Aktiengesellschaft Mixer circuit with balanced frequency mixer with varactor diodes
EP2731263A1 (en) * 2012-11-08 2014-05-14 Université Montpellier 2 Sciences et Techniques Device and method for mixing electromagnetic waves with frequencies up to the THz range

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983489A (en) * 1975-06-16 1976-09-28 General Electric Company Doubling mixer
US4079415A (en) * 1975-11-07 1978-03-14 Vari-L Company, Inc. Frequency translator
US4340975A (en) * 1979-10-09 1982-07-20 Matsushita Electric Industrial Company, Limited Microwave mixing circuit and a VHF-UHF tuner having the mixing circuit
US4449245A (en) * 1982-03-22 1984-05-15 Motorola Inc. High gain balanced mixer
JPS59108356U (ja) * 1983-01-11 1984-07-21 アルプス電気株式会社 プリスケーラの入力回路
JPS61192131A (ja) * 1985-02-20 1986-08-26 Matsushita Electric Ind Co Ltd チユ−ナ
US4601063A (en) * 1985-02-28 1986-07-15 Rca Corporation Doubly-balanced mixer termination
US4607394A (en) * 1985-03-04 1986-08-19 General Electric Company Single balanced planar mixer
US4811425A (en) * 1987-01-09 1989-03-07 Itt Avionics, A Division Of Itt Corporation Apparatus for reducing the effects of local oscillator leakage in mixers employed in zero IF receivers
US4852123A (en) * 1988-02-05 1989-07-25 Motorola, Inc. Nearly DC IF phase locked transceiver

Also Published As

Publication number Publication date
KR0176246B1 (ko) 1999-05-01
US5034994A (en) 1991-07-23
JPH02295230A (ja) 1990-12-06

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