CN1187915A - 使用一个中频和一个单独的本机振荡器的宽带零中频正交解调器 - Google Patents
使用一个中频和一个单独的本机振荡器的宽带零中频正交解调器 Download PDFInfo
- Publication number
- CN1187915A CN1187915A CN96194359A CN96194359A CN1187915A CN 1187915 A CN1187915 A CN 1187915A CN 96194359 A CN96194359 A CN 96194359A CN 96194359 A CN96194359 A CN 96194359A CN 1187915 A CN1187915 A CN 1187915A
- Authority
- CN
- China
- Prior art keywords
- frequency
- signal
- mixer
- frequency mixer
- quadrature
- 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.)
- Granted
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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
- H04B1/16—Circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
-
- 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
- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Mobile Radio Communication Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/456,985 US5761615A (en) | 1995-05-31 | 1995-05-31 | Wide band zero if quadrature demodulator using a intermediate frequency and a single local oscillator |
US08/456,985 | 1995-05-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1187915A true CN1187915A (zh) | 1998-07-15 |
CN1085911C CN1085911C (zh) | 2002-05-29 |
Family
ID=23814956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN96194359A Expired - Fee Related CN1085911C (zh) | 1995-05-31 | 1996-04-22 | 使用一个中频和一个单独的本机振荡器的宽带零中频正交解调器 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5761615A (zh) |
JP (1) | JP2001520815A (zh) |
KR (1) | KR100306727B1 (zh) |
CN (1) | CN1085911C (zh) |
HK (1) | HK1009895A1 (zh) |
TW (1) | TW341013B (zh) |
WO (1) | WO1996038924A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100431261C (zh) * | 2002-08-08 | 2008-11-05 | Nxp股份有限公司 | 具有多个本地振荡器的改进的混频器和基于其的系统 |
Families Citing this family (55)
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GB9501243D0 (en) * | 1995-01-23 | 1995-03-15 | Rca Thomson Licensing Corp | Local oscillator using digital handswitching |
GB9617423D0 (en) * | 1995-10-11 | 1996-10-02 | Philips Electronics Nv | Receiver circuit |
US5937341A (en) * | 1996-09-13 | 1999-08-10 | University Of Washington | Simplified high frequency tuner and tuning method |
JPH1098409A (ja) * | 1996-09-20 | 1998-04-14 | Matsushita Electric Ind Co Ltd | 無線回路 |
US5918167A (en) * | 1997-03-11 | 1999-06-29 | Northern Telecom Limited | Quadrature downconverter local oscillator leakage canceller |
JP4236059B2 (ja) * | 1997-03-12 | 2009-03-11 | エヌエックスピー ビー ヴィ | 周波数変換回路 |
JP3360004B2 (ja) * | 1997-03-20 | 2002-12-24 | 松下電器産業株式会社 | 無線受信装置 |
US6060815A (en) | 1997-08-18 | 2000-05-09 | X-Cyte, Inc. | Frequency mixing passive transponder |
US6016422A (en) * | 1997-10-31 | 2000-01-18 | Motorola, Inc. | Method of and apparatus for generating radio frequency quadrature LO signals for direct conversion transceivers |
US6144845A (en) * | 1997-12-31 | 2000-11-07 | Motorola, Inc. | Method and circuit for image rejection |
US6243569B1 (en) | 1998-08-12 | 2001-06-05 | Analog Devices, Inc. | Direct conversion circuit for radio frequency signals |
US6230000B1 (en) * | 1998-10-15 | 2001-05-08 | Motorola Inc. | Product detector and method therefor |
KR20000040082A (ko) * | 1998-12-17 | 2000-07-05 | 서평원 | 중간주파 국부발진회로 |
US6393266B1 (en) | 1999-03-02 | 2002-05-21 | Conexant Systems, Inc. | Preprocessor and related frequency translator |
US6587678B1 (en) * | 1999-03-02 | 2003-07-01 | Skyworks Solutions, Inc. | Direct conversion receiver employing subharmonic frequency translator architecture and related preprocessor |
US6445726B1 (en) * | 1999-04-30 | 2002-09-03 | Texas Instruments Incorporated | Direct conversion radio receiver using combined down-converting and energy spreading mixing signal |
GB9912439D0 (en) * | 1999-05-27 | 1999-07-28 | Mitel Semiconductor Ltd | A receiver |
US6574462B1 (en) * | 1999-08-25 | 2003-06-03 | Analog Devices, Inc. | Local oscillator apparatus for radio frequency communication systems |
DE60026179T2 (de) | 2000-01-19 | 2006-11-02 | Koninklijke Philips Electronics N.V. | Fm rundfunkempfänger |
CN1193511C (zh) | 2000-03-21 | 2005-03-16 | 皇家菲利浦电子有限公司 | 具有单独本地振荡器的调频通信系统 |
US6947499B2 (en) * | 2000-07-31 | 2005-09-20 | Icom Incorporated | Angle demodulation apparatus, local oscillation apparatus, angle demodulation method, local oscillation signal generating method, recording medium and computer data signal |
US6370372B1 (en) * | 2000-09-25 | 2002-04-09 | Conexant Systems, Inc. | Subharmonic mixer circuit and method |
FI20002164A (fi) * | 2000-09-29 | 2002-03-30 | Nokia Corp | Frekvenssikonversio |
US7116728B2 (en) * | 2001-05-25 | 2006-10-03 | Matsushita Electric Industrial Co., Ltd. | Quadrature alignment in communications receivers using dual delay lines |
US6876844B1 (en) * | 2001-06-29 | 2005-04-05 | National Semiconductor Corporation | Cascading-synchronous mixer and method of operation |
US7646782B1 (en) * | 2001-07-30 | 2010-01-12 | Primrose Donald R | Data link/physical layer packet buffering and flushing |
FR2828599B1 (fr) * | 2001-08-13 | 2005-06-24 | Stepmind | Circuit melangeur a rejection de frequence image, notamment pour un recepteur rf a frequence intermediaire nulle ou faible |
JP3828793B2 (ja) * | 2001-12-04 | 2006-10-04 | Necエレクトロニクス株式会社 | 直交ミキサ回路 |
US6850745B2 (en) * | 2002-01-23 | 2005-02-01 | Broadcom Corp | Method and apparatus for generating a self-correcting local oscillation |
JP2003304168A (ja) * | 2002-04-08 | 2003-10-24 | Asahi Kasei Microsystems Kk | 受信装置 |
US6882834B1 (en) * | 2002-04-26 | 2005-04-19 | Analog Devices, Inc. | Direct conversion receiver apparatus |
US7194044B2 (en) * | 2002-05-22 | 2007-03-20 | Alexander Neil Birkett | Up/down conversion circuitry for radio transceiver |
US20040002320A1 (en) * | 2002-06-28 | 2004-01-01 | Ching-Lang Lin | Square wave local oscillator technique for direct conversion receiver |
US6850748B2 (en) * | 2002-07-31 | 2005-02-01 | Gct Semiconductor, Inc. | RF front end with reduced carrier leakage |
US7272375B2 (en) | 2004-06-30 | 2007-09-18 | Silicon Laboratories Inc. | Integrated low-IF terrestrial audio broadcast receiver and associated method |
US7203475B2 (en) * | 2004-09-14 | 2007-04-10 | Broadcom Corporation | Multiple rate local oscillation generator and applications thereof |
JP4546295B2 (ja) * | 2005-03-16 | 2010-09-15 | 富士通セミコンダクター株式会社 | 受信装置 |
DE102005019786A1 (de) * | 2005-04-28 | 2006-11-09 | Newlogic Technologies Ag | Dualband-Frequenz-Synthesizer |
US7398073B2 (en) * | 2005-09-06 | 2008-07-08 | Skyworks Solutions, Inc. | Low noise mixer |
US20070169307A1 (en) * | 2006-01-26 | 2007-07-26 | Xerox Corporation | Adjustable castor assembly |
US7881690B2 (en) * | 2006-04-07 | 2011-02-01 | Belair Networks Inc. | System and method for zero intermediate frequency filtering of information communicated in wireless networks |
US20090117859A1 (en) * | 2006-04-07 | 2009-05-07 | Belair Networks Inc. | System and method for frequency offsetting of information communicated in mimo based wireless networks |
US8254865B2 (en) | 2006-04-07 | 2012-08-28 | Belair Networks | System and method for frequency offsetting of information communicated in MIMO-based wireless networks |
JP2008053836A (ja) * | 2006-08-22 | 2008-03-06 | Sharp Corp | 受信回路及び受信機 |
JP5084543B2 (ja) * | 2008-02-12 | 2012-11-28 | キヤノン株式会社 | 画像処理装置及び画像処理方法 |
KR20100026360A (ko) * | 2008-08-29 | 2010-03-10 | 한국전자통신연구원 | 누설신호 저감장치 및 그 방법 |
JP5585449B2 (ja) * | 2008-09-08 | 2014-09-10 | 日本電気株式会社 | 受信装置及び方法 |
US20110018626A1 (en) * | 2008-10-24 | 2011-01-27 | Advantest Corporation | Quadrature amplitude demodulator and demodulation method |
US8085088B2 (en) * | 2009-03-04 | 2011-12-27 | National Semiconductor Corporation | Quadrature signal demodulator circuitry suitable for doppler ultrasound |
US20110043286A1 (en) * | 2009-08-18 | 2011-02-24 | Gerald Youngblood | Direct conversion receiver |
US9297896B1 (en) * | 2011-05-24 | 2016-03-29 | Garmin International, Inc. | Electronically steered weather radar |
US9276622B2 (en) * | 2013-03-14 | 2016-03-01 | Qualcomm Incorporated | Local oscillator (LO) generator with multi-phase divider and phase locked loop |
US9383433B2 (en) | 2013-03-15 | 2016-07-05 | Autoliv Asp, Inc. | System and method for calibration and built-in self test of automobile radar system |
US8928369B1 (en) * | 2013-07-31 | 2015-01-06 | Futurewei Technologies, Inc. | Low power local oscillator quadrature generator |
US11177818B2 (en) | 2018-08-24 | 2021-11-16 | Analog Devices International Unlimited Company | Non-quadrature local oscillator mixing and multi-decade coverage |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3390343A (en) * | 1965-05-24 | 1968-06-25 | Collins Radio Co | Single side-band pulse product detector |
US4492960A (en) * | 1982-01-18 | 1985-01-08 | The United States Of America As Represented By The Secretary Of The Navy | Switching mixer |
JPS59204317A (ja) * | 1983-05-04 | 1984-11-19 | Toshiba Corp | オ−デイオagc回路 |
JPS61171207A (ja) * | 1985-01-25 | 1986-08-01 | Nec Corp | 受信機 |
JPH0453302A (ja) * | 1990-06-21 | 1992-02-20 | Pioneer Electron Corp | 無線受信機の周波数変換回路 |
GB9017418D0 (en) * | 1990-08-08 | 1990-09-19 | Gen Electric Co Plc | Half frequency mixer |
US5111162A (en) * | 1991-05-03 | 1992-05-05 | Motorola, Inc. | Digital frequency synthesizer having AFC and modulation applied to frequency divider |
US5210484A (en) * | 1992-05-15 | 1993-05-11 | Louis R. Fantozzi | Lock-in amplifier |
DE4319878A1 (de) * | 1992-06-17 | 1993-12-23 | Micron Technology Inc | Hochfrequenz-Identifikationseinrichtung (HFID) und Verfahren zu ihrer Herstellung |
US5465415A (en) * | 1992-08-06 | 1995-11-07 | National Semiconductor Corporation | Even order term mixer |
JPH0715236A (ja) * | 1993-06-18 | 1995-01-17 | Mitsubishi Electric Corp | 周波数シンセサイザ |
US5412351A (en) * | 1993-10-07 | 1995-05-02 | Nystrom; Christian | Quadrature local oscillator network |
US5479458A (en) * | 1994-10-05 | 1995-12-26 | Tanaka; Yoshiaki | Digital phase shifter including 1/N for phase detect and subsequent VCO adjust |
-
1995
- 1995-05-31 US US08/456,985 patent/US5761615A/en not_active Expired - Lifetime
-
1996
- 1996-04-22 CN CN96194359A patent/CN1085911C/zh not_active Expired - Fee Related
- 1996-04-22 WO PCT/US1996/005610 patent/WO1996038924A1/en active IP Right Grant
- 1996-04-22 JP JP53647096A patent/JP2001520815A/ja active Pending
- 1996-04-22 KR KR1019970708612A patent/KR100306727B1/ko not_active IP Right Cessation
- 1996-10-07 TW TW085112231A patent/TW341013B/zh active
-
1998
- 1998-09-24 HK HK98110910A patent/HK1009895A1/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100431261C (zh) * | 2002-08-08 | 2008-11-05 | Nxp股份有限公司 | 具有多个本地振荡器的改进的混频器和基于其的系统 |
Also Published As
Publication number | Publication date |
---|---|
WO1996038924A1 (en) | 1996-12-05 |
JP2001520815A (ja) | 2001-10-30 |
TW341013B (en) | 1998-09-21 |
HK1009895A1 (en) | 1999-09-10 |
KR100306727B1 (ko) | 2001-10-19 |
US5761615A (en) | 1998-06-02 |
KR19990022133A (ko) | 1999-03-25 |
CN1085911C (zh) | 2002-05-29 |
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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: MOTOROLA MOBILE CO., LTD. Free format text: FORMER OWNER: MOTOROLA INC. Effective date: 20110114 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20110114 Address after: Illinois Instrunment Patentee after: Motorola Mobility LLC Address before: Illinois Instrunment Patentee before: Motorola Inc. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020529 Termination date: 20150422 |
|
EXPY | Termination of patent right or utility model |