CN1255947C - 超高频通带中的开关 - Google Patents
超高频通带中的开关 Download PDFInfo
- Publication number
- CN1255947C CN1255947C CNB028014413A CN02801441A CN1255947C CN 1255947 C CN1255947 C CN 1255947C CN B028014413 A CNB028014413 A CN B028014413A CN 02801441 A CN02801441 A CN 02801441A CN 1255947 C CN1255947 C CN 1255947C
- Authority
- CN
- China
- Prior art keywords
- band
- signal
- circuit
- diode
- output
- 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 - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency 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
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Filters And Equalizers (AREA)
- Superheterodyne Receivers (AREA)
Abstract
Description
Claims (3)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG0100080 | 2001-04-27 | ||
SGPCT/SG0100080 | 2001-04-27 | ||
SGPCT/SG01/00080 | 2001-04-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1462506A CN1462506A (zh) | 2003-12-17 |
CN1255947C true CN1255947C (zh) | 2006-05-10 |
Family
ID=20428930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028014413A Expired - Fee Related CN1255947C (zh) | 2001-04-27 | 2002-04-24 | 超高频通带中的开关 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7209726B2 (zh) |
EP (1) | EP1386395A1 (zh) |
JP (1) | JP2004520758A (zh) |
KR (1) | KR20040000298A (zh) |
CN (1) | CN1255947C (zh) |
WO (1) | WO2002089327A1 (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10223396B4 (de) * | 2002-05-25 | 2005-08-04 | Diehl Ako Stiftung & Co. Kg | Eingangsschaltung für einen HF-Sendebaustein |
US7672653B2 (en) * | 2007-03-20 | 2010-03-02 | Intel Corporation | Removing interfering signals in a broadband radio frequency receiver |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3396395A (en) * | 1966-09-29 | 1968-08-06 | Sylvania Electric Prod | Receiver system including spurious signal detector |
US3525941A (en) * | 1967-06-28 | 1970-08-25 | Tracor | Stepwave converter |
US3931578A (en) * | 1973-12-26 | 1976-01-06 | General Electric Company | Multiple frequency band receiver tuner system using single, non-bandswitched local oscillator |
JPS5823978B2 (ja) * | 1975-11-11 | 1983-05-18 | ソニー株式会社 | チユ−ナ |
JPS5826699B2 (ja) * | 1975-11-13 | 1983-06-04 | ソニー株式会社 | チユ−ナ |
US4244055A (en) * | 1977-10-17 | 1981-01-06 | Pioneer Electronic Corporation | Tuner with phase locked loop synthesizer |
US4392254A (en) * | 1980-09-29 | 1983-07-05 | Motorola Inc. | Mechanical tuner with microphonics elimination circuitry |
IN165870B (zh) * | 1985-06-25 | 1990-02-03 | Siemens Ag | |
US6035185A (en) * | 1995-08-17 | 2000-03-07 | Zenith Electronics Corporation | Selective RF circuit with varactor tuned bandpass switched bandpass filters |
US5752179A (en) * | 1995-08-17 | 1998-05-12 | Zenith Electronics Corporation | Selective RF circuit with varactor tuned and switched bandpass filters |
JP2803723B2 (ja) * | 1996-09-02 | 1998-09-24 | 日本電気株式会社 | 周波数変換型フィルタ |
US5790959A (en) * | 1996-11-13 | 1998-08-04 | Hewlett-Packard Company | Programmable band select and transfer module for local multipoint distribution service basestation |
JP3183332B2 (ja) * | 1997-09-30 | 2001-07-09 | 日本電気株式会社 | テレビチューナ、チューナic、テレビチューナの制御方法 |
US6313688B1 (en) * | 1998-07-24 | 2001-11-06 | Gct Semiconductor, Inc. | Mixer structure and method of using same |
JP3586113B2 (ja) * | 1998-08-27 | 2004-11-10 | アルプス電気株式会社 | テレビジョンチューナー |
EP1006669B1 (en) * | 1998-11-30 | 2006-08-09 | Robert Bosch Gmbh | A switchable wide band receiver front end for a multiband receiver |
US6249686B1 (en) * | 1998-12-22 | 2001-06-19 | Philips Electronics N.A. Corp. | Internal circuit for adaptive mode selection of multi-mode RF integrated circuit |
JP4004018B2 (ja) * | 2001-06-29 | 2007-11-07 | 株式会社東芝 | 周波数変換器及びこれを用いた無線通信装置 |
JP2004088372A (ja) * | 2002-08-27 | 2004-03-18 | Renesas Technology Corp | 受信機及びそれを用いた無線通信端末機器 |
US7058379B2 (en) * | 2003-05-19 | 2006-06-06 | Agere Systems, Inc. | Orthogonal frequency division multiplexing transceiver and method of operating the same |
US7095454B2 (en) * | 2003-07-30 | 2006-08-22 | Maxim Integrated Products, Inc. | Broadband single conversion tuner integrated circuits |
-
2002
- 2002-04-24 US US10/475,885 patent/US7209726B2/en not_active Expired - Lifetime
- 2002-04-24 EP EP02724559A patent/EP1386395A1/en not_active Withdrawn
- 2002-04-24 KR KR1020027017554A patent/KR20040000298A/ko not_active Application Discontinuation
- 2002-04-24 CN CNB028014413A patent/CN1255947C/zh not_active Expired - Fee Related
- 2002-04-24 JP JP2002586500A patent/JP2004520758A/ja active Pending
- 2002-04-24 WO PCT/IB2002/001487 patent/WO2002089327A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2002089327A1 (en) | 2002-11-07 |
EP1386395A1 (en) | 2004-02-04 |
JP2004520758A (ja) | 2004-07-08 |
KR20040000298A (ko) | 2004-01-03 |
US7209726B2 (en) | 2007-04-24 |
CN1462506A (zh) | 2003-12-17 |
US20040108916A1 (en) | 2004-06-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: NXP CO., LTD. Free format text: FORMER OWNER: ROYAL PHILIPS ELECTRONICS CO., LTD. Effective date: 20070907 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20070907 Address after: Holland Ian Deho Finn Patentee after: Koninkl Philips Electronics NV Address before: Holland Ian Deho Finn Patentee before: Koninklike Philips Electronics N. V. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060510 Termination date: 20130424 |