DE69329140T2 - Direktumsetzempfänger - Google Patents
DirektumsetzempfängerInfo
- Publication number
- DE69329140T2 DE69329140T2 DE69329140T DE69329140T DE69329140T2 DE 69329140 T2 DE69329140 T2 DE 69329140T2 DE 69329140 T DE69329140 T DE 69329140T DE 69329140 T DE69329140 T DE 69329140T DE 69329140 T2 DE69329140 T2 DE 69329140T2
- Authority
- DE
- Germany
- Prior art keywords
- direct conversion
- conversion recipient
- recipient
- direct
- conversion
- 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
- 238000006243 chemical reaction Methods 0.000 title 1
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
- 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
- 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
-
- 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
- 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
- H03D7/16—Multiple-frequency-changing
- H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92203653 | 1992-11-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69329140D1 DE69329140D1 (de) | 2000-09-07 |
DE69329140T2 true DE69329140T2 (de) | 2001-03-29 |
Family
ID=8211077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69329140T Expired - Lifetime DE69329140T2 (de) | 1992-11-26 | 1993-11-18 | Direktumsetzempfänger |
Country Status (6)
Country | Link |
---|---|
US (1) | US5584068A (de) |
JP (1) | JP3793243B2 (de) |
KR (1) | KR100355684B1 (de) |
DE (1) | DE69329140T2 (de) |
HK (1) | HK1012803A1 (de) |
SG (1) | SG44919A1 (de) |
Families Citing this family (59)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3200547B2 (ja) | 1995-09-11 | 2001-08-20 | 株式会社日立製作所 | Cdma方式移動通信システム |
FI112133B (fi) * | 1996-03-29 | 2003-10-31 | Nokia Corp | Menetelmä kahdella eri taajuuusalueella toimivan radioviestinjärjestelmän suoramuunnoslähetin/vastaanottimen taajuuksien muodostamiseksi ja kahdella taajuusalueella toimivan radioviestinjärjestelmänsuoramuunnoslähetin/vastaanotin sekä edellisten käyttö matkaviestimessä |
WO1998010523A1 (en) * | 1996-09-06 | 1998-03-12 | Philips Electronics N.V. | A zero-if receiver |
US6009317A (en) * | 1997-01-17 | 1999-12-28 | Ericsson Inc. | Method and apparatus for compensating for imbalances between quadrature signals |
US5893029A (en) * | 1997-02-10 | 1999-04-06 | Motorola, Inc. | Baseband phase-locked direct conversion receiver with frequency offset |
US6633550B1 (en) | 1997-02-20 | 2003-10-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio transceiver on a chip |
JP3466422B2 (ja) * | 1997-05-28 | 2003-11-10 | 株式会社ケンウッド | 受信装置 |
GB2328813B (en) * | 1997-08-28 | 2001-08-29 | Mitel Corp | A radio frequency zero IF direct down converter |
JP3095067B2 (ja) * | 1997-12-04 | 2000-10-03 | 日本電気株式会社 | Dcオフセットキャンセラーおよびこれを備えた受信機と通信システムとdcオフセットキャンセル方法 |
JP3048136B2 (ja) * | 1997-12-18 | 2000-06-05 | 日本電気株式会社 | 無線選択呼出受信機 |
JP3216597B2 (ja) * | 1998-02-09 | 2001-10-09 | 日本電気株式会社 | ダイレクトコンバージョン受信装置 |
KR100611245B1 (ko) * | 1998-03-20 | 2006-08-10 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 클럭 신호 생성기를 구비하는 수신기및 수신기를 동조하는 방법 |
US6243569B1 (en) | 1998-08-12 | 2001-06-05 | Analog Devices, Inc. | Direct conversion circuit for radio frequency signals |
US6091940A (en) | 1998-10-21 | 2000-07-18 | Parkervision, Inc. | Method and system for frequency up-conversion |
US6061551A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for down-converting electromagnetic signals |
US7515896B1 (en) | 1998-10-21 | 2009-04-07 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships |
US6694128B1 (en) | 1998-08-18 | 2004-02-17 | Parkervision, Inc. | Frequency synthesizer using universal frequency translation technology |
GB9818397D0 (en) * | 1998-08-25 | 1998-10-21 | Philips Electronics Nv | Low if receiver |
US7065327B1 (en) | 1998-09-10 | 2006-06-20 | Intel Corporation | Single-chip CMOS direct-conversion transceiver |
US6049706A (en) | 1998-10-21 | 2000-04-11 | Parkervision, Inc. | Integrated frequency translation and selectivity |
US6542722B1 (en) | 1998-10-21 | 2003-04-01 | Parkervision, Inc. | Method and system for frequency up-conversion with variety of transmitter configurations |
US6813485B2 (en) | 1998-10-21 | 2004-11-02 | Parkervision, Inc. | Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same |
US6061555A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for ensuring reception of a communications signal |
US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
US6560301B1 (en) | 1998-10-21 | 2003-05-06 | Parkervision, Inc. | Integrated frequency translation and selectivity with a variety of filter embodiments |
US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
US7039372B1 (en) | 1998-10-21 | 2006-05-02 | Parkervision, Inc. | Method and system for frequency up-conversion with modulation embodiments |
FI112741B (fi) | 1998-11-26 | 2003-12-31 | Nokia Corp | Menetelmä ja järjestely RF-signaalien lähettämiseksi ja vastaanottamiseksi tiedonsiirtojärjestelmien erilaisissa radiorajapinnoissa |
EP1011191B1 (de) * | 1998-12-08 | 2009-01-07 | Nxp B.V. | Filteranordnung zur Unterdrückung einer Gleichstromkomponente |
KR20000044345A (ko) * | 1998-12-30 | 2000-07-15 | 박태진 | 직교 진폭 변조 방식 송신기의 열화 제거 방법 |
US6704558B1 (en) | 1999-01-22 | 2004-03-09 | Parkervision, Inc. | Image-reject down-converter and embodiments thereof, such as the family radio service |
US6704549B1 (en) | 1999-03-03 | 2004-03-09 | Parkvision, Inc. | Multi-mode, multi-band communication system |
US6879817B1 (en) | 1999-04-16 | 2005-04-12 | Parkervision, Inc. | DC offset, re-radiation, and I/Q solutions using universal frequency translation technology |
US6853690B1 (en) | 1999-04-16 | 2005-02-08 | Parkervision, Inc. | Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments |
US7065162B1 (en) | 1999-04-16 | 2006-06-20 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same |
US7110444B1 (en) | 1999-08-04 | 2006-09-19 | Parkervision, Inc. | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations |
US7693230B2 (en) | 1999-04-16 | 2010-04-06 | Parkervision, Inc. | Apparatus and method of differential IQ frequency up-conversion |
US8295406B1 (en) | 1999-08-04 | 2012-10-23 | Parkervision, Inc. | Universal platform module for a plurality of communication protocols |
US6671332B1 (en) | 1999-10-08 | 2003-12-30 | Medtronic, Inc. | Zero IF receiver with reduced AM detector |
DE19961924A1 (de) * | 1999-12-22 | 2001-07-05 | Philips Corp Intellectual Pty | Mobilfunkempfänger mit integriertem Rundfunkempfänger |
EP1134889A1 (de) * | 2000-03-13 | 2001-09-19 | Infineon Technologies AG | Anordnung und Verfahren zur Kompensation des Eingangs-Offsets eines Mischers |
US6766148B1 (en) * | 2000-03-21 | 2004-07-20 | Koninklijke Phillips Electronics N.V. | Switched sideband frequency low-IF transmitter |
US7010286B2 (en) | 2000-04-14 | 2006-03-07 | Parkervision, Inc. | Apparatus, system, and method for down-converting and up-converting electromagnetic signals |
US7050778B1 (en) * | 2000-09-18 | 2006-05-23 | Broadcom Corporation | Direct conversion turner |
US7454453B2 (en) | 2000-11-14 | 2008-11-18 | Parkervision, Inc. | Methods, systems, and computer program products for parallel correlation and applications thereof |
US7386286B2 (en) * | 2001-06-01 | 2008-06-10 | Broadband Innovations, Inc. | High frequency low noise phase-frequency detector and phase noise reduction method and apparatus |
US7072427B2 (en) | 2001-11-09 | 2006-07-04 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
US7379883B2 (en) | 2002-07-18 | 2008-05-27 | Parkervision, Inc. | Networking methods and systems |
US7460584B2 (en) | 2002-07-18 | 2008-12-02 | Parkervision, Inc. | Networking methods and systems |
JP2005064764A (ja) * | 2003-08-08 | 2005-03-10 | Alps Electric Co Ltd | ダイレクトコンバージョンチューナ |
US7702306B2 (en) * | 2003-08-28 | 2010-04-20 | Broadcom Corporation | Apparatus and method for local oscillator calibration in mixer circuits |
GB2419483B (en) * | 2004-09-17 | 2008-12-24 | Motorola Inc | Demodulator for use in wireless communucations and receiver, method and terminal using it |
GB2424326B (en) * | 2005-03-18 | 2008-01-16 | Motorola Inc | Receiver for receipt and demodulation of a frequency modulated RF signal and method of operation therein |
US8369820B2 (en) * | 2007-09-05 | 2013-02-05 | General Instrument Corporation | Frequency multiplier device |
KR101656266B1 (ko) * | 2009-06-15 | 2016-09-12 | 삼성전자 주식회사 | 무선 통신 시스템의 직접변환 수신기에서 직류전압 오프셋을 보상하기 위한 장치 및 방법 |
US9024815B2 (en) | 2011-05-27 | 2015-05-05 | Brooks Engineering International, Llc | Direct-to-digital software-defined radar |
KR102103795B1 (ko) * | 2013-08-23 | 2020-04-27 | 삼성디스플레이 주식회사 | 리플 보상 회로, 이를 이용한 표시 패널의 구동 방법 및 이를 포함하는 표시 장치 |
US20150267920A1 (en) * | 2014-03-18 | 2015-09-24 | Robert Zerby Schreffler | Enigma Panel |
US9735888B2 (en) * | 2015-10-23 | 2017-08-15 | Cisco Technology, Inc. | Control of LO signal frequency offset between optical transmitters and receivers |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4344178A (en) * | 1980-09-26 | 1982-08-10 | Harris Corporation | Costas loop QPSK demodulator |
GB2158330A (en) * | 1984-04-30 | 1985-11-06 | Philips Electronic Associated | An afc system for a direct modulation fm data receiver |
GB2180419A (en) * | 1985-09-16 | 1987-03-25 | Philips Electronic Associated | Direct conversion receiver |
EP0298484B2 (de) * | 1987-07-10 | 1995-07-12 | Siemens Aktiengesellschaft | Optischer FSK-Homodynempfänger |
JPH021675A (ja) * | 1987-12-24 | 1990-01-05 | Nec Corp | オフセットqpsk方式用の搬送波再生回路 |
US4944025A (en) * | 1988-08-09 | 1990-07-24 | At&E Corporation | Direct conversion FM receiver with offset |
US4989220A (en) * | 1989-02-28 | 1991-01-29 | First Pacific Networks | Method and apparatus for demodulating a class of M-ary phase shift keyed (PSK) signals |
US5003621A (en) * | 1989-11-02 | 1991-03-26 | Motorola, Inc. | Direct conversion FM receiver |
JP2552927B2 (ja) * | 1990-01-26 | 1996-11-13 | 三菱電機株式会社 | π/4シフトQPSK信号の復調装置 |
IL102737A (en) * | 1992-08-05 | 1995-11-27 | Technion Res & Dev Foundation | Return of modulated digital frequency signals to their original state |
TW225067B (de) * | 1992-11-26 | 1994-06-11 | Philips Electronics Nv |
-
1993
- 1993-11-15 KR KR1019930024180A patent/KR100355684B1/ko not_active IP Right Cessation
- 1993-11-18 SG SG1996009445A patent/SG44919A1/en unknown
- 1993-11-18 DE DE69329140T patent/DE69329140T2/de not_active Expired - Lifetime
- 1993-11-24 JP JP29345293A patent/JP3793243B2/ja not_active Expired - Lifetime
-
1995
- 1995-08-28 US US08/520,330 patent/US5584068A/en not_active Expired - Lifetime
-
1998
- 1998-12-19 HK HK98114089A patent/HK1012803A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HK1012803A1 (en) | 1999-08-06 |
JPH06224799A (ja) | 1994-08-12 |
SG44919A1 (en) | 1997-12-19 |
KR940012877A (ko) | 1994-06-24 |
US5584068A (en) | 1996-12-10 |
DE69329140D1 (de) | 2000-09-07 |
JP3793243B2 (ja) | 2006-07-05 |
KR100355684B1 (ko) | 2002-12-11 |
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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) | ||
8328 | Change in the person/name/address of the agent |
Representative=s name: EISENFUEHR, SPEISER & PARTNER, 10178 BERLIN |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: NXP B.V., EINDHOVEN, NL |