DE68916289T2 - Direktmisch-Empfänger. - Google Patents

Direktmisch-Empfänger.

Info

Publication number
DE68916289T2
DE68916289T2 DE68916289T DE68916289T DE68916289T2 DE 68916289 T2 DE68916289 T2 DE 68916289T2 DE 68916289 T DE68916289 T DE 68916289T DE 68916289 T DE68916289 T DE 68916289T DE 68916289 T2 DE68916289 T2 DE 68916289T2
Authority
DE
Germany
Prior art keywords
direct mix
receiver
mix receiver
direct
mix
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
DE68916289T
Other languages
English (en)
Other versions
DE68916289D1 (de
Inventor
Christopher John Collier
Robert Andrew Brown
Monique Geraldine Miran Sommer
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE68916289D1 publication Critical patent/DE68916289D1/de
Publication of DE68916289T2 publication Critical patent/DE68916289T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H03D3/008—Compensating DC offsets
    • 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
DE68916289T 1988-03-16 1989-03-10 Direktmisch-Empfänger. Expired - Fee Related DE68916289T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8806202A GB2215545A (en) 1988-03-16 1988-03-16 A direct-conversion receiver

Publications (2)

Publication Number Publication Date
DE68916289D1 DE68916289D1 (de) 1994-07-28
DE68916289T2 true DE68916289T2 (de) 1995-01-26

Family

ID=10633509

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68916289T Expired - Fee Related DE68916289T2 (de) 1988-03-16 1989-03-10 Direktmisch-Empfänger.

Country Status (5)

Country Link
US (1) US5052050A (de)
EP (1) EP0333266B1 (de)
JP (1) JP2792888B2 (de)
DE (1) DE68916289T2 (de)
GB (1) GB2215545A (de)

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ES2116351T3 (es) * 1991-11-25 1998-07-16 Siemens Ag Oesterreich Procedimiento de demodulacion con aplicacion de una modulacion en cuadratura.
FI94818C (fi) * 1993-06-02 1995-10-25 Nokia Telecommunications Oy Menetelmä digitaalisesti moduloidun signaalin demoduloimiseksi sekä demodulaattori
US5507036A (en) * 1994-09-30 1996-04-09 Rockwell International Apparatus with distortion cancelling feed forward signal
US5613233A (en) * 1994-09-30 1997-03-18 Rockwell International Corp. Apparatus with distortion cancelling feedback signal
US5828955A (en) * 1995-08-30 1998-10-27 Rockwell Semiconductor Systems, Inc. Near direct conversion receiver and method for equalizing amplitude and phase therein
JPH11504786A (ja) * 1996-02-29 1999-04-27 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 位相分離された入力信号をディジタル処理する受信機
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US5694079A (en) * 1996-04-04 1997-12-02 Lucent Technologies Inc. Digital FM demodulator using a lagrangian interpolation function
GB2326038A (en) * 1997-06-06 1998-12-09 Nokia Mobile Phones Ltd Signal level balancing in quadrature receiver
US6442382B1 (en) * 1997-06-27 2002-08-27 Agere Systems Guardian Corp. Filter switching system and method
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
US6192225B1 (en) 1998-04-22 2001-02-20 Ericsson Inc. Direct conversion receiver
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
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
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US7065327B1 (en) 1998-09-10 2006-06-20 Intel Corporation Single-chip CMOS direct-conversion transceiver
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
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
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US6304751B1 (en) * 1998-12-29 2001-10-16 Cirrus Logic, Inc. Circuits, systems and methods for digital correction of phase and magnitude errors in image reject mixers
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
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
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
US6546237B1 (en) * 1999-08-31 2003-04-08 Lucent Technologies Inc. Differential FM detector for radio receivers
DE19948899A1 (de) * 1999-10-11 2001-04-19 Infineon Technologies Ag Verfahren und Schaltungsanordnung zur digitalen Frequenzkorrektur eines Signals
US20010055348A1 (en) * 2000-03-31 2001-12-27 Anderson Christopher L. Sequential quadrant demodulation of digitally modulated radio signals
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
JP4179782B2 (ja) 2000-04-26 2008-11-12 富士通株式会社 無線受信装置及び無線通信システム
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
KR20030068677A (ko) * 2002-02-15 2003-08-25 대한민국 (창원대학 공작기계기술연구센터) 두개의 아날로그 디지탈 변환기를 이용한 디지털하향변환방법
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
US20050191986A1 (en) * 2004-02-27 2005-09-01 Lin Hung C. FM detector for direct-conversion receiver
JP4557702B2 (ja) * 2004-12-17 2010-10-06 株式会社東芝 受信機
EP1902519B1 (de) * 2005-07-04 2012-03-21 Nxp B.V. Vereinfachte derotation in digitalen fm-demodulatorarchitekturen
US20070197169A1 (en) * 2006-02-01 2007-08-23 Viss Marlin E Systems and methods for transmitter and channel characterization
US8019311B2 (en) * 2008-06-27 2011-09-13 Ibiquity Digital Corporation Systems and methods for DC component recovery in a zero-IF radio receiver
TWI682649B (zh) * 2018-09-28 2020-01-11 國立中山大學 具正交混波器之訊號解調裝置及其解調方法

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US4090145A (en) * 1969-03-24 1978-05-16 Webb Joseph A Digital quadrature demodulator
US3568067A (en) * 1969-06-13 1971-03-02 Collins Radio Co Frequency discriminator with output indicative of difference between input and local reference signals
US3990016A (en) * 1975-04-23 1976-11-02 Donald Dimon Asynchronous demodulator
US4449222A (en) * 1981-11-23 1984-05-15 Rockwell International Corporation Digital modulation quality monitor
US4560941A (en) * 1984-09-21 1985-12-24 General Electric Company Frequency modulation detector using digital signal vector processing
US4731796A (en) * 1984-10-25 1988-03-15 Stc, Plc Multi-mode radio transceiver
GB2166324A (en) * 1984-10-25 1986-04-30 Stc Plc A multi-mode radio transceiver
GB2174576B (en) * 1985-04-29 1989-06-28 Plessey Co Plc Improvements in or relating to receivers
US4675882A (en) * 1985-09-10 1987-06-23 Motorola, Inc. FM demodulator
GB2193405A (en) * 1986-08-01 1988-02-03 Philips Electronic Associated Demodulating an angle-modulated signal
GB2210743A (en) * 1987-10-05 1989-06-14 Philips Nv Frequency difference detector (fdd) having automatic gain control and a carrier modulated receiver including the fdd

Also Published As

Publication number Publication date
GB2215545A (en) 1989-09-20
EP0333266A2 (de) 1989-09-20
JP2792888B2 (ja) 1998-09-03
US5052050A (en) 1991-09-24
DE68916289D1 (de) 1994-07-28
GB8806202D0 (en) 1988-04-13
EP0333266B1 (de) 1994-06-22
EP0333266A3 (en) 1990-03-21
JPH01274518A (ja) 1989-11-02

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8339 Ceased/non-payment of the annual fee