CN1227807C - 镜频干扰抑制 - Google Patents
镜频干扰抑制 Download PDFInfo
- Publication number
- CN1227807C CN1227807C CNB008041105A CN00804110A CN1227807C CN 1227807 C CN1227807 C CN 1227807C CN B008041105 A CNB008041105 A CN B008041105A CN 00804110 A CN00804110 A CN 00804110A CN 1227807 C CN1227807 C CN 1227807C
- Authority
- CN
- China
- Prior art keywords
- signal
- oscillator
- frequency
- receiver
- mixer device
- 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
- 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
-
- 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
- H03D7/18—Modifications of frequency-changers for eliminating image frequencies
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99204499.0 | 1999-12-23 | ||
EP99204499 | 1999-12-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1357169A CN1357169A (zh) | 2002-07-03 |
CN1227807C true CN1227807C (zh) | 2005-11-16 |
Family
ID=8241066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB008041105A Expired - Fee Related CN1227807C (zh) | 1999-12-23 | 2000-12-08 | 镜频干扰抑制 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6771943B2 (zh) |
EP (1) | EP1219021B1 (zh) |
JP (1) | JP2003518861A (zh) |
KR (1) | KR100735946B1 (zh) |
CN (1) | CN1227807C (zh) |
DE (1) | DE60027314T2 (zh) |
WO (1) | WO2001048909A2 (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10318188B4 (de) * | 2003-04-22 | 2007-04-12 | Infineon Technologies Ag | Verwendung einer Schaltungsanordnung |
US7447491B2 (en) * | 2003-06-06 | 2008-11-04 | Silicon Laboratories Inc. | Multi-tuner integrated circuit architecture utilizing frequency isolated local oscillators and associated method |
US7190943B2 (en) * | 2003-09-16 | 2007-03-13 | Microtune (Texas), L.P. | System and method for frequency translation with harmonic suppression using mixer stages |
DE102004035274A1 (de) * | 2004-07-21 | 2006-02-16 | Infineon Technologies Ag | Verfahren zur Signalverarbeitung, Empfängeranordnung und Verwendung der Empfängeranordnung |
WO2008072171A1 (en) * | 2006-12-12 | 2008-06-19 | Nxp B.V. | Radio receiver |
FI20065832A0 (fi) * | 2006-12-21 | 2006-12-21 | Nokia Corp | Laite käsittäen taajuusselektiivisen piirin ja menetelmä |
CA2776098C (en) * | 2007-01-31 | 2014-10-28 | Sharp Kabushiki Kaisha | Reducing inter-cell interference in a mobile communication system |
JP2009231883A (ja) | 2008-03-19 | 2009-10-08 | Panasonic Corp | ラジオ受信機 |
US10003419B1 (en) * | 2017-05-31 | 2018-06-19 | Keysight Technologies, Inc. | Method and system of preventing interference caused by images |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1916834A1 (de) * | 1969-04-02 | 1970-10-15 | Blaupunkt Werke Gmbh | Elektronische Sendersuchlaufautomatik fuer einen Rundfunkempfaenger |
US3891926A (en) * | 1972-12-18 | 1975-06-24 | American Standard Inc | Filter module |
US3947774A (en) * | 1974-11-25 | 1976-03-30 | General Motors Corporation | Signal seeking stopping circuit receiver |
US4152652A (en) * | 1976-12-30 | 1979-05-01 | Gte Sylvania Incorporated | Apparatus for and method of measuring radio frequency signals |
US4387400A (en) * | 1981-05-11 | 1983-06-07 | Zenith Radio Corporation | Tuning system for a television receiver |
JPS5885623A (ja) * | 1981-11-18 | 1983-05-23 | Pioneer Electronic Corp | Am受信機の同調方法 |
GB2168864A (en) * | 1984-12-19 | 1986-06-25 | Philips Electronic Associated | Radio receiver/transmitter filters |
US4831661A (en) * | 1986-10-09 | 1989-05-16 | Toko Kabushiki Kaisha | RF tuning circuit |
JPS63242030A (ja) * | 1987-03-30 | 1988-10-07 | Toshiba Corp | 広帯域周波数シンセサイザ受信機 |
KR920010383B1 (ko) * | 1990-10-23 | 1992-11-27 | 삼성전자 주식회사 | 방송신호 직접 수신회로 |
US5230099A (en) | 1991-01-24 | 1993-07-20 | Rockwell International Corporation | System for controlling phase and gain errors in an i/q direct conversion receiver |
US5826180A (en) * | 1994-08-08 | 1998-10-20 | Nice Systems Ltd. | Near homodyne radio frequency receiver |
GB9501243D0 (en) * | 1995-01-23 | 1995-03-15 | Rca Thomson Licensing Corp | Local oscillator using digital handswitching |
JP2755210B2 (ja) * | 1995-04-11 | 1998-05-20 | 日本電気株式会社 | 周波数自動制御回路 |
US6553216B1 (en) * | 1995-12-14 | 2003-04-22 | Thomson Licensing, S.A. | RF tunable filter arrangement with tunable image trap |
SG46175A1 (en) * | 1996-01-10 | 1998-02-20 | Philips Electronics Nv | Tv/fm receiver for multi-media applications |
US5937341A (en) * | 1996-09-13 | 1999-08-10 | University Of Washington | Simplified high frequency tuner and tuning method |
DE19701459A1 (de) * | 1997-01-17 | 1998-07-23 | Philips Patentverwaltung | Rundfunkempfänger |
JPH10215149A (ja) * | 1997-01-30 | 1998-08-11 | Kenwood Corp | 自動周波数制御回路 |
US5878089A (en) * | 1997-02-21 | 1999-03-02 | Usa Digital Radio Partners, L.P. | Coherent signal detector for AM-compatible digital audio broadcast waveform recovery |
US5852772A (en) * | 1997-02-25 | 1998-12-22 | Ericsson Inc. | Receiver IF system with active filters |
GB2326037A (en) * | 1997-06-06 | 1998-12-09 | Nokia Mobile Phones Ltd | Maintaining signals in phase quadrature |
EP0972351B1 (en) * | 1998-01-29 | 2007-08-01 | Nxp B.V. | Global tuner |
CA2386477C (en) * | 2001-05-15 | 2004-11-23 | Research In Motion Limited | Feedback compensation detector for a direct conversion transmitter |
-
2000
- 2000-12-08 EP EP00993669A patent/EP1219021B1/en not_active Expired - Lifetime
- 2000-12-08 KR KR1020017010754A patent/KR100735946B1/ko not_active IP Right Cessation
- 2000-12-08 WO PCT/EP2000/012386 patent/WO2001048909A2/en active IP Right Grant
- 2000-12-08 DE DE60027314T patent/DE60027314T2/de not_active Expired - Lifetime
- 2000-12-08 JP JP2001548515A patent/JP2003518861A/ja active Pending
- 2000-12-08 CN CNB008041105A patent/CN1227807C/zh not_active Expired - Fee Related
- 2000-12-18 US US09/739,504 patent/US6771943B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1219021A2 (en) | 2002-07-03 |
US6771943B2 (en) | 2004-08-03 |
EP1219021B1 (en) | 2006-04-12 |
WO2001048909A2 (en) | 2001-07-05 |
WO2001048909A3 (en) | 2002-05-02 |
KR20010108250A (ko) | 2001-12-07 |
CN1357169A (zh) | 2002-07-03 |
DE60027314D1 (de) | 2006-05-24 |
DE60027314T2 (de) | 2006-12-28 |
KR100735946B1 (ko) | 2007-07-06 |
US20010027094A1 (en) | 2001-10-04 |
JP2003518861A (ja) | 2003-06-10 |
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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. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051116 Termination date: 20181208 |