DE69624020T2 - Nullzwischenfrequenz-Empfänger - Google Patents

Nullzwischenfrequenz-Empfänger

Info

Publication number
DE69624020T2
DE69624020T2 DE69624020T DE69624020T DE69624020T2 DE 69624020 T2 DE69624020 T2 DE 69624020T2 DE 69624020 T DE69624020 T DE 69624020T DE 69624020 T DE69624020 T DE 69624020T DE 69624020 T2 DE69624020 T2 DE 69624020T2
Authority
DE
Germany
Prior art keywords
intermediate frequency
frequency receiver
zero intermediate
zero
receiver
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
Application number
DE69624020T
Other languages
English (en)
Other versions
DE69624020D1 (de
Inventor
Steven Bly
Mark Vernon Lane
William Mark Siddall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tait Electronics Ltd
Original Assignee
Tait Electronics Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tait Electronics Ltd filed Critical Tait Electronics Ltd
Publication of DE69624020D1 publication Critical patent/DE69624020D1/de
Application granted granted Critical
Publication of DE69624020T2 publication Critical patent/DE69624020T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02Automatic frequency control
    • H03J7/04Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
DE69624020T 1995-02-21 1996-02-21 Nullzwischenfrequenz-Empfänger Expired - Fee Related DE69624020T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ27053595 1995-02-21

Publications (2)

Publication Number Publication Date
DE69624020D1 DE69624020D1 (de) 2002-11-07
DE69624020T2 true DE69624020T2 (de) 2003-07-17

Family

ID=19925148

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69624020T Expired - Fee Related DE69624020T2 (de) 1995-02-21 1996-02-21 Nullzwischenfrequenz-Empfänger

Country Status (5)

Country Link
US (1) US5715281A (de)
EP (1) EP0729230B1 (de)
DE (1) DE69624020T2 (de)
ES (1) ES2184833T3 (de)
FI (1) FI112132B (de)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0157531B1 (ko) * 1995-07-14 1998-11-16 김광호 텔레비젼신호 수신기에서 디지탈 반송파 복구 장치 및 방법
GB9617423D0 (en) * 1995-10-11 1996-10-02 Philips Electronics Nv Receiver circuit
US6029058A (en) 1996-07-19 2000-02-22 The Board Of Trustee Of The Leland Stanford Junior University Spectrum control for direct conversion radio frequency reception
US5940400A (en) * 1996-11-06 1999-08-17 Motorola, Inc. Method, device, wireless transceiver and computer for providing collision detection in wireless carrier sense multiple access systems
US6633550B1 (en) * 1997-02-20 2003-10-14 Telefonaktiebolaget Lm Ericsson (Publ) Radio transceiver on a chip
DE69818327T2 (de) * 1997-03-05 2004-07-01 Nec Corp. Direktmischempfänger zur Unterdrückung von Offset-Gleichspannungen
JPH10313260A (ja) * 1997-05-13 1998-11-24 Matsushita Electric Ind Co Ltd 受信装置
US6195537B1 (en) * 1997-09-25 2001-02-27 Lucent Technologies, Inc. Method and apparatus for strong signal suppression in multi-carrier signals
US6061551A (en) * 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
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
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
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
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7039372B1 (en) * 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US7236754B2 (en) * 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
GB2344712B (en) * 1998-12-12 2003-10-08 Roke Manor Research Improvements in or relating to receivers
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
US6370211B1 (en) 1999-02-05 2002-04-09 Motorola, Inc. Method and apparatus for facilitating reception of a signal on one of a plurality of contiguous channels
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
US6879817B1 (en) * 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
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
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
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
JP4629173B2 (ja) * 1999-09-17 2011-02-09 ソニー株式会社 記録装置および記録方法、並びに記録媒体
WO2001026260A1 (en) * 1999-09-27 2001-04-12 Parthus Technologies Plc Method and apparatus for comparator tree structure for fast acquisition of offsets induced in a wireless receiver
US7082171B1 (en) * 1999-11-24 2006-07-25 Parkervision, Inc. Phase shifting applications of universal frequency translation
US7292835B2 (en) * 2000-01-28 2007-11-06 Parkervision, Inc. Wireless and wired cable modem applications of universal frequency translation technology
US6625424B1 (en) * 2000-03-21 2003-09-23 Koninklijke Philips Electronics N.V. Autocalibration of a transceiver through nulling of a DC-voltage in a receiver and injecting of DC-signals in a transmitter
US7010286B2 (en) * 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7068987B2 (en) 2000-10-02 2006-06-27 Conexant, Inc. Packet acquisition and channel tracking for a wireless communication device configured in a zero intermediate frequency architecture
US6735422B1 (en) 2000-10-02 2004-05-11 Baldwin Keith R Calibrated DC compensation system for a wireless communication device configured in a zero intermediate frequency architecture
US7010559B2 (en) * 2000-11-14 2006-03-07 Parkervision, Inc. Method and apparatus for a parallel correlator and applications thereof
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US6694129B2 (en) * 2001-01-12 2004-02-17 Qualcomm, Incorporated Direct conversion digital domain control
JP2002290254A (ja) * 2001-03-26 2002-10-04 Nec Corp ダイレクトコンバージョン受信機
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
WO2003055086A1 (en) * 2001-12-20 2003-07-03 Agency For Science, Technology And Research High dynamic range receiver
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7379883B2 (en) * 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7110734B2 (en) * 2002-09-05 2006-09-19 Maxim Integrated Products Inc. DC offset cancellation in a zero if receiver
GB2394373B (en) * 2002-10-19 2005-12-14 Zarlink Semiconductor Ltd Radio frequency tuner
GB2394847B (en) * 2002-11-02 2005-09-07 Zarlink Semiconductor Ltd Digital receiver
US20040266355A1 (en) * 2003-06-26 2004-12-30 Jany-Yee Hsu Method for eliminating irritating noise at the end of communication for a walkie talkie
DE102004010365B4 (de) 2004-03-03 2006-11-09 Infineon Technologies Ag Phasenregelskreis, Verfahren zur Frequenzumschaltung in einem Phasenregelkreis und Verwendung des Phasenregelkreises
US7860189B2 (en) * 2004-08-19 2010-12-28 Intrinsix Corporation Hybrid heterodyne transmitters and receivers
US7576671B2 (en) 2005-08-19 2009-08-18 Intrinsix Corporation Mismatch-shaping dynamic element matching systems and methods for multi-bit sigma-delta data converters
US20070169307A1 (en) * 2006-01-26 2007-07-26 Xerox Corporation Adjustable castor assembly
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
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
US8392176B2 (en) * 2006-04-10 2013-03-05 Qualcomm Incorporated Processing of excitation in audio coding and decoding
US7672657B2 (en) 2006-06-28 2010-03-02 Intel Corporation Tunable filter apparatus, systems, and methods
US20080049875A1 (en) * 2006-08-25 2008-02-28 Nick Cowley Integrated tuner apparatus, systems, and methods
US7622987B1 (en) 2007-01-25 2009-11-24 Pmc-Sierra, Inc. Pattern-based DC offset correction
US20090198500A1 (en) * 2007-08-24 2009-08-06 Qualcomm Incorporated Temporal masking in audio coding based on spectral dynamics in frequency sub-bands
US8428957B2 (en) 2007-08-24 2013-04-23 Qualcomm Incorporated Spectral noise shaping in audio coding based on spectral dynamics in frequency sub-bands
KR101460664B1 (ko) * 2007-10-11 2014-11-12 삼성전자주식회사 공유된 컨버터를 구비하는 알 에프 칩 및 이를 구비하는송수신기
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
EP2148481A1 (de) * 2008-07-25 2010-01-27 STMicroelectronics N.V. Verfahren und Vorrichtung zur Behandlung der Gleichstromverschiebung in einer Funkempfangskette mit mehreren variablen Verstärkern
US20100054377A1 (en) * 2008-08-28 2010-03-04 Honeywell International Inc. Systems and methods for spurious signal reduction in multi-mode digital navigation receivers
US8958769B1 (en) * 2012-08-31 2015-02-17 Maxim Integrated Products, Inc. Direct conversion receiver for angle modulated signals
CN116325684A (zh) 2020-10-19 2023-06-23 艾斯康实验室公司 用于无线通信系统的参考信号

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3114063A1 (de) * 1981-04-07 1982-10-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Empfangssystem
US4484355A (en) * 1983-04-11 1984-11-20 Ritron, Inc. Handheld transceiver with frequency synthesizer and sub-audible tone squelch system
FR2614155A1 (fr) * 1987-04-14 1988-10-21 Thomson Csf Indicateur numerique d'accrochage d'une boucle a verrouillage de phase de type costas
US4837853A (en) * 1987-06-05 1989-06-06 Motorola, Inc. Dual port FM demodulation in phase locked receivers
GB2215544B (en) * 1988-03-10 1992-02-19 Plessey Co Plc Apparatus for the correction of frequency independent errors in quadrature zero i.f. radio architectures
US5003621A (en) * 1989-11-02 1991-03-26 Motorola, Inc. Direct conversion FM receiver
US5263194A (en) * 1990-03-07 1993-11-16 Seiko Corp. Zero if radio receiver for intermittent operation
US5241702A (en) * 1990-09-06 1993-08-31 Telefonaktiebolaget L M Ericsson D.c. offset compensation in a radio receiver
US5263026A (en) * 1991-06-27 1993-11-16 Hughes Aircraft Company Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
US5438591A (en) * 1991-07-31 1995-08-01 Kabushiki Kaisha Toshiba Quadrature amplitude modulation type digital radio communication device and method for preventing abnormal synchronization in demodulation system
DE69217140T2 (de) * 1991-08-07 1997-07-03 Toshiba Kawasaki Kk QPSK-Demodulator mit automatischer Frequenznachregelung
US5528633A (en) * 1992-03-13 1996-06-18 Comstream Corporation Tuner with quadrature downconverter for pulse amplitude modulated data applications
US5276706A (en) * 1992-05-20 1994-01-04 Hughes Aircraft Company System and method for minimizing frequency offsets between digital communication stations
US5579338A (en) * 1992-06-29 1996-11-26 Mitsubishi Denki Kabushiki Kaisha Spread spectrum receiver using partial correlations
IL102737A (en) * 1992-08-05 1995-11-27 Technion Res & Dev Foundation Return of modulated digital frequency signals to their original state
DE4236547C2 (de) * 1992-10-29 1994-09-29 Hagenuk Telecom Gmbh Homodynempfänger und Verfahren zur Korrektur des konvertierten Empfangssignals
US5504785A (en) * 1993-05-28 1996-04-02 Tv/Com Technologies, Inc. Digital receiver for variable symbol rate communications
JP2611623B2 (ja) * 1993-06-08 1997-05-21 日本電気株式会社 自動周波数制御装置
JPH07147529A (ja) * 1993-06-28 1995-06-06 Hitachi Ltd 分割帯域信号強度測定法を用いた自動周波数制御装置及び制御方法
DE69533246T2 (de) * 1994-03-25 2005-08-25 Samsung Electronics Co., Ltd., Suwon Verfahren und Vorrichtung für automatische Frequenzregelung

Also Published As

Publication number Publication date
FI960780A0 (fi) 1996-02-21
EP0729230A1 (de) 1996-08-28
FI960780A (fi) 1996-08-22
EP0729230B1 (de) 2002-10-02
ES2184833T3 (es) 2003-04-16
DE69624020D1 (de) 2002-11-07
FI112132B (fi) 2003-10-31
US5715281A (en) 1998-02-03

Similar Documents

Publication Publication Date Title
DE69624020T2 (de) Nullzwischenfrequenz-Empfänger
DE69515312T2 (de) Direktmischempfänger
DE69605279T2 (de) Doppelfrequenz-gps
DE69616397D1 (de) Fernsehempfänger
FI963958A (fi) Kahden taajuusalueen antenni
DE69720722D1 (de) Leistungseffizienter empfänger
DE69704549D1 (de) Aufnahmevorrichtung
DE69633801D1 (de) Fernsehempfänger
BR9607134A (pt) Transmissor
DE69634471D1 (de) Frequenzdemodulator
DE69616022D1 (de) Frequenzsynthetisierer
DE59407500D1 (de) Hochfrequenzempfänger
DE69635260D1 (de) Zweibandfunkempfänger
DE69528934D1 (de) FM-Empfänger
DE69522050D1 (de) AM-Funkempfänger
DE69620579D1 (de) Abstimmschaltung
DE69530359T2 (de) Radioempfänger
DE69534154D1 (de) Empfänger
FI99181B (fi) Vastaanotin
DE69632177D1 (de) Funkempfänger
DE69732994D1 (de) Hochfrequenz-signalempfänger
DE69518063D1 (de) Funkrufempfänger
DE69613709D1 (de) Frequenzsynthetisierer
DE69633685D1 (de) Rundfunkempfänger
NO980705D0 (no) Radioapparat med flere frekvensområder

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee