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
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)
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)
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 |
EP0540908B1 (de) * | 1991-11-04 | 1997-01-08 | 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)
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 |
-
1986
- 1986-06-23 US US06/877,451 patent/US4780909A/en not_active Expired - Lifetime
- 1986-06-25 EP EP86304933A patent/EP0208470B1/de not_active Expired - Lifetime
- 1986-06-25 DE DE8686304933T patent/DE3678629D1/de not_active Expired - Lifetime
- 1986-07-01 CN CN86104232A patent/CN1009890B/zh not_active Expired
- 1986-07-02 KR KR1019860005347A patent/KR900008184B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR870001711A (ko) | 1987-03-17 |
CN1009890B (zh) | 1990-10-03 |
KR900008184B1 (ko) | 1990-11-05 |
EP0208470B1 (de) | 1991-04-10 |
EP0208470A3 (en) | 1988-12-14 |
CN86104232A (zh) | 1987-02-18 |
US4780909A (en) | 1988-10-25 |
EP0208470A2 (de) | 1987-01-14 |
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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 |