DE69524689D1 - Doppelt abgestimmte, frequenzbandumschaltbare HF-Schaltungsanordnung mit symmetrischen Ausgangssignalen - Google Patents
Doppelt abgestimmte, frequenzbandumschaltbare HF-Schaltungsanordnung mit symmetrischen AusgangssignalenInfo
- Publication number
- DE69524689D1 DE69524689D1 DE69524689T DE69524689T DE69524689D1 DE 69524689 D1 DE69524689 D1 DE 69524689D1 DE 69524689 T DE69524689 T DE 69524689T DE 69524689 T DE69524689 T DE 69524689T DE 69524689 D1 DE69524689 D1 DE 69524689D1
- Authority
- DE
- Germany
- Prior art keywords
- tuned
- double
- frequency band
- output signals
- circuit arrangement
- 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
- 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
-
- 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
- H03J5/24—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 a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
- H03J5/242—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 a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
- H03J5/244—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 a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Television Receiver Circuits (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/287,003 US5619283A (en) | 1994-08-08 | 1994-08-08 | Double tuned RF circuit with balanced secondary |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69524689D1 true DE69524689D1 (de) | 2002-01-31 |
DE69524689T2 DE69524689T2 (de) | 2002-06-13 |
Family
ID=23101059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69524689T Expired - Lifetime DE69524689T2 (de) | 1994-08-08 | 1995-08-04 | Doppelt abgestimmte, frequenzbandumschaltbare HF-Schaltungsanordnung mit symmetrischen Ausgangssignalen |
Country Status (8)
Country | Link |
---|---|
US (1) | US5619283A (de) |
EP (1) | EP0696870B1 (de) |
JP (1) | JP3670350B2 (de) |
KR (1) | KR100377427B1 (de) |
CN (1) | CN1088958C (de) |
DE (1) | DE69524689T2 (de) |
MY (1) | MY115367A (de) |
SG (1) | SG54081A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5715531A (en) * | 1995-11-20 | 1998-02-03 | Nextlevel Systems (Taiwan), Ltd. | Synchronous tracking filter circuit for a broadcast satellite tuner |
JPH11127028A (ja) * | 1997-10-21 | 1999-05-11 | Alps Electric Co Ltd | 平衡型発振器 |
JPH11205700A (ja) * | 1998-01-12 | 1999-07-30 | Alps Electric Co Ltd | 複同調回路 |
DE19956428A1 (de) * | 1999-11-24 | 2001-05-31 | Thomson Brandt Gmbh | Oszillator mit einem abstimmbaren Schwingkreis |
US7102464B1 (en) * | 2002-04-04 | 2006-09-05 | Triquint Semiconductor, Inc. | Switched transformer for adjusting power amplifier loading |
JP4451827B2 (ja) * | 2005-08-29 | 2010-04-14 | アルプス電気株式会社 | 電子回路及びテレビジョンチューナ |
US20100026389A1 (en) * | 2008-08-01 | 2010-02-04 | James Breslin | Dual mode power amplifier output network |
JP2011023891A (ja) * | 2009-07-14 | 2011-02-03 | Alps Electric Co Ltd | テレビジョン放送信号受信チューナ |
US11139779B2 (en) * | 2019-10-21 | 2021-10-05 | Samsung Electronics Co., Ltd. | Dual band mixer |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3628152A (en) | 1970-02-25 | 1971-12-14 | Rca Corp | Television tuning circuit utilizing voltage variable capacitance |
US3962643A (en) * | 1974-08-05 | 1976-06-08 | Zenith Radio Corporation | Abrupt junction varactor diode television tuner |
US4646360A (en) * | 1984-03-07 | 1987-02-24 | Rca Corporation | Constant bandwidth RF filter with improved low frequency attenuation |
JPH0666643B2 (ja) * | 1984-08-16 | 1994-08-24 | 松下電器産業株式会社 | 高周波信号受信用可変容量同調回路 |
JPS62155517U (de) * | 1986-03-25 | 1987-10-02 | ||
US4905306A (en) * | 1988-02-26 | 1990-02-27 | Rca Licensing Corporation | Filter switching arrangement for a tuner |
US4996599A (en) * | 1989-04-14 | 1991-02-26 | Rca Licensing Corporation | Television tuner oscillator with three point tracking |
US5077543A (en) * | 1991-02-07 | 1991-12-31 | Ungermann-Bass, Inc. | Balanced low-pass common mode filter |
US5285179A (en) * | 1992-08-28 | 1994-02-08 | Thomson Consumer Electronics, Inc. | Double tuned circuit with balanced output and image trap |
-
1994
- 1994-08-08 US US08/287,003 patent/US5619283A/en not_active Expired - Lifetime
-
1995
- 1995-07-31 MY MYPI95002237A patent/MY115367A/en unknown
- 1995-08-04 EP EP95111573A patent/EP0696870B1/de not_active Expired - Lifetime
- 1995-08-04 KR KR1019950024059A patent/KR100377427B1/ko not_active IP Right Cessation
- 1995-08-04 DE DE69524689T patent/DE69524689T2/de not_active Expired - Lifetime
- 1995-08-07 SG SG1995001070A patent/SG54081A1/en unknown
- 1995-08-07 CN CN95109846A patent/CN1088958C/zh not_active Expired - Fee Related
- 1995-08-08 JP JP20262395A patent/JP3670350B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0696870A1 (de) | 1996-02-14 |
US5619283A (en) | 1997-04-08 |
JP3670350B2 (ja) | 2005-07-13 |
DE69524689T2 (de) | 2002-06-13 |
EP0696870B1 (de) | 2001-12-19 |
SG54081A1 (en) | 1998-11-16 |
CN1088958C (zh) | 2002-08-07 |
KR100377427B1 (ko) | 2003-06-19 |
KR960009665A (ko) | 1996-03-22 |
MY115367A (en) | 2003-05-31 |
JPH0870409A (ja) | 1996-03-12 |
CN1120283A (zh) | 1996-04-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |