DE3678629D1 - Signalempfaenger mit abstimmschaltungen. - Google Patents

Signalempfaenger mit abstimmschaltungen.

Info

Publication number
DE3678629D1
DE3678629D1 DE8686304933T DE3678629T DE3678629D1 DE 3678629 D1 DE3678629 D1 DE 3678629D1 DE 8686304933 T DE8686304933 T DE 8686304933T DE 3678629 T DE3678629 T DE 3678629T DE 3678629 D1 DE3678629 D1 DE 3678629D1
Authority
DE
Germany
Prior art keywords
signal receiver
tuning switches
tuning
switches
receiver
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.)
Expired - Lifetime
Application number
DE8686304933T
Other languages
English (en)
Inventor
Seiji Sakashita
Kiyotake Fukui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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
Priority claimed from JP14551385A external-priority patent/JPH067646B2/ja
Priority claimed from JP14550585A external-priority patent/JPH067645B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE3678629D1 publication Critical patent/DE3678629D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/14—Automatic detuning arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0033—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for voltage synthesis with a D/A converter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0091—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with means for scanning over a band of frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/06—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
DE8686304933T 1985-07-02 1986-06-25 Signalempfaenger mit abstimmschaltungen. Expired - Lifetime DE3678629D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14551385A JPH067646B2 (ja) 1985-07-02 1985-07-02 受信装置
JP14550585A JPH067645B2 (ja) 1985-07-02 1985-07-02 受信装置

Publications (1)

Publication Number Publication Date
DE3678629D1 true DE3678629D1 (de) 1991-05-16

Family

ID=26476597

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686304933T Expired - Lifetime DE3678629D1 (de) 1985-07-02 1986-06-25 Signalempfaenger mit abstimmschaltungen.

Country Status (5)

Country Link
US (1) US4780909A (de)
EP (1) EP0208470B1 (de)
KR (1) KR900008184B1 (de)
CN (1) CN1009890B (de)
DE (1) DE3678629D1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5134720A (en) * 1987-09-17 1992-07-28 Amskan Limited Signal locating apparatus
KR930007300B1 (ko) * 1989-11-29 1993-08-04 삼성전기 주식회사 더블 콘버젼(Double Conversion) 튜너의 자동 동조방법
DE69216554T2 (de) * 1991-11-04 1997-07-10 Motorola Inc Verfahren und Einrichtung zur automatischen Abstimmkalibrierung von elektronisch abgestimmten Filtern
US5842119A (en) * 1993-02-05 1998-11-24 Emerson; Harry Edwin Radio scanner and display system
US5621767A (en) * 1994-09-30 1997-04-15 Hughes Electronics Method and device for locking on a carrier signal by dividing frequency band into segments for segment signal quality determination and selecting better signal quality segment
US5613230A (en) * 1995-06-09 1997-03-18 Ford Motor Company AM receiver search tuning with adaptive control
US5701600A (en) * 1995-07-17 1997-12-23 Motorola, Inc. Radio receiver and method of calibrating same
JPH09181572A (ja) * 1995-12-25 1997-07-11 Matsushita Electric Ind Co Ltd 受信機の自動同調装置
KR100201836B1 (ko) * 1996-09-30 1999-06-15 전주범 튜닝 포인트 제어장치 및 튜닝 포인트 제어 기능을갖는 동조회로
US7050778B1 (en) 2000-09-18 2006-05-23 Broadcom Corporation Direct conversion turner
DE10106071C1 (de) * 2001-02-09 2002-07-11 Harman Becker Automotive Sys Fernsehempfänger
JP2003064593A (ja) * 2001-08-24 2003-03-05 Mitsubishi Heavy Ind Ltd 抄紙用フォーマ
KR100423400B1 (ko) * 2001-11-21 2004-03-18 삼성전기주식회사 Ｃｍｏｓ 소자를 이용한 직접변환방식 튜너
KR100446078B1 (ko) * 2002-07-08 2004-08-30 삼성전자주식회사 영상신호 자동이득 제어장치
US7702306B2 (en) 2003-08-28 2010-04-20 Broadcom Corporation Apparatus and method for local oscillator calibration in mixer circuits
US7620382B2 (en) * 2005-06-09 2009-11-17 Alps Electric Co., Ltd. Frequency converter capable of preventing level of intermediate frequency signal from lowering due to rise in temperature

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2856397C2 (de) * 1978-12-28 1983-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zur Erzielung eines Gleichlaufs zwischen der Oszillatorfrequenz und der Resonanzfrequenz des Eingangskreises eines Überlagerungsempfängers.
JPS5643809A (en) * 1979-09-19 1981-04-22 Hitachi Ltd Automatic gain controller
US4334323A (en) * 1980-09-08 1982-06-08 Zenith Radio Corporation Self tracking tuner
JPS5818008A (ja) * 1981-07-27 1983-02-02 Dowa:Kk 熱発電素子気化バ−ナ
DE3242965C1 (de) 1982-11-20 1984-05-30 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Abstimmeinheit fuer Geraete der Nachrichtentechnik
DE3303711C2 (de) * 1983-02-04 1985-01-24 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Abstimmeinheit für Geräte der Nachrichtentechnik
US4654884A (en) * 1984-05-10 1987-03-31 Alps Electric Co., Ltd. Radio receiver with switching circuit for elimination of intermodulation interference

Also Published As

Publication number Publication date
CN86104232A (zh) 1987-02-18
US4780909A (en) 1988-10-25
EP0208470A2 (de) 1987-01-14
CN1009890B (zh) 1990-10-03
KR900008184B1 (ko) 1990-11-05
EP0208470B1 (de) 1991-04-10
KR870001711A (ko) 1987-03-17
EP0208470A3 (en) 1988-12-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee