WO2002001734A3 - Wireless transceiver with subtractive filter compensating both transmit and receive artifacts - Google Patents

Wireless transceiver with subtractive filter compensating both transmit and receive artifacts

Info

Publication number
WO2002001734A3
WO2002001734A3 PCT/US2001/017754 US0117754W WO0201734A3 WO 2002001734 A3 WO2002001734 A3 WO 2002001734A3 US 0117754 W US0117754 W US 0117754W WO 0201734 A3 WO0201734 A3 WO 0201734A3
Authority
WO
WIPO (PCT)
Prior art keywords
transmit
receive
wireless transceiver
effects
compensating
Prior art date
Application number
PCT/US2001/017754
Other languages
French (fr)
Other versions
WO2002001734A2 (en
Inventor
Daniel Babitch
Original Assignee
Atmel Corp
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 Atmel Corp filed Critical Atmel Corp
Priority to CA002402428A priority Critical patent/CA2402428A1/en
Priority to DE60110588T priority patent/DE60110588T2/en
Priority to EP01944216A priority patent/EP1295404B1/en
Priority to AU2001266651A priority patent/AU2001266651A1/en
Priority to JP2002505769A priority patent/JP2004502377A/en
Publication of WO2002001734A2 publication Critical patent/WO2002001734A2/en
Publication of WO2002001734A3 publication Critical patent/WO2002001734A3/en
Priority to NO20026060A priority patent/NO20026060L/en

Links

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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver

Abstract

A wireless transceiver featuring a compensating filter circuit (17) with a frequency and optionally an amplitude response which has the same function as the composite of filter effects from the transmit side (15) as well as from the intermediate frequency (IF) stage of the receive side (13). The compensating filtering approximately duplicates the effects of the phase lock loop on the transmit side and the effects of IF filtering on the receive side, as well as amplitude distortion in the detector, which would delay or distort the audio. Then, the compensated audio is added or subtracted, depending on phase considerations, from the receive signal so that the receive signal is free of filter artifacts.
PCT/US2001/017754 2000-06-26 2001-05-31 Wireless transceiver with subtractive filter compensating both transmit and receive artifacts WO2002001734A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002402428A CA2402428A1 (en) 2000-06-26 2001-05-31 Wireless transceiver with subtractive filter compensating both transmit and receive artifacts
DE60110588T DE60110588T2 (en) 2000-06-26 2001-05-31 WIRELESS TRANSMITTER RECEIVER WITH SUBTRACTIVE FILTER FOR COMPENSATION OF SENT AND RECEIVED ARTEFACTS
EP01944216A EP1295404B1 (en) 2000-06-26 2001-05-31 Wireless transceiver with subtractive filter compensating both transmit and receive artifacts
AU2001266651A AU2001266651A1 (en) 2000-06-26 2001-05-31 Wireless transceiver with subtractive filter compensating both transmit and receive artifacts
JP2002505769A JP2004502377A (en) 2000-06-26 2001-05-31 Wireless transceiver with subtraction filter to compensate for both transmit and receive errors
NO20026060A NO20026060L (en) 2000-06-26 2002-12-17 Wireless transceiver with subtractive filter that compensates for both sending and receiving artifacts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/603,801 2000-06-26
US09/603,801 US6735181B1 (en) 2000-06-26 2000-06-26 Wireless transceiver with subtractive filter compensating both transmit and receive artifacts

Publications (2)

Publication Number Publication Date
WO2002001734A2 WO2002001734A2 (en) 2002-01-03
WO2002001734A3 true WO2002001734A3 (en) 2002-06-13

Family

ID=24416977

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/017754 WO2002001734A2 (en) 2000-06-26 2001-05-31 Wireless transceiver with subtractive filter compensating both transmit and receive artifacts

Country Status (11)

Country Link
US (1) US6735181B1 (en)
EP (1) EP1295404B1 (en)
JP (1) JP2004502377A (en)
KR (1) KR20030010743A (en)
CN (1) CN1217493C (en)
AU (1) AU2001266651A1 (en)
CA (1) CA2402428A1 (en)
DE (1) DE60110588T2 (en)
NO (1) NO20026060L (en)
TW (1) TW517480B (en)
WO (1) WO2002001734A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7206366B2 (en) * 2002-08-07 2007-04-17 Broadcom Corporation System and method for programmably adjusting gain and frequency response in a 10-GigaBit ethernet/fibre channel system
US6914489B2 (en) * 2002-09-26 2005-07-05 Koninklijke Philips Electronics N.V. Voltage-controlled oscillator presetting circuit
CN100384268C (en) * 2003-07-26 2008-04-23 华为技术有限公司 A transceiver singleboard
JP4298468B2 (en) * 2003-10-31 2009-07-22 シャープ株式会社 Frequency conversion circuit, radio frequency receiver, and radio frequency transceiver
TWI311423B (en) * 2004-11-03 2009-06-21 Wionics Researc Transceiver for use in an ultrawideband communication system
US7400865B2 (en) * 2005-02-09 2008-07-15 Nokia Corporation Variable bandwidth envelope modulator for use with envelope elimination and restoration transmitter architecture and method
US20060280270A1 (en) * 2005-05-26 2006-12-14 Brima Ibrahim Method and system for FM communication
KR100771789B1 (en) * 2005-08-04 2007-10-30 삼성전기주식회사 Television receiver with video signal distortion compensation
US20090098834A1 (en) * 2006-03-07 2009-04-16 Matsushita Electric Industrial Co., Ltd. Frequency synthesizer, radio communication system, and semiconductor device
US8300157B2 (en) * 2007-11-06 2012-10-30 Himax Technologies Limited Method for estimating frequency offsets and frequency offset estimation circuit thereof
CN101547011B (en) * 2008-03-25 2013-06-26 瑞昱半导体股份有限公司 Communication device with adjustable compensation filter and method thereof
US8626090B2 (en) * 2010-03-23 2014-01-07 Telefonaktiebolaget Lm Ericsson (Publ) Circuit and method for interference reduction
JP5236711B2 (en) * 2010-09-30 2013-07-17 株式会社エヌ・ティ・ティ・ドコモ Mobile communication terminal, multi-frequency simultaneous communication method
CN102420576A (en) * 2011-11-21 2012-04-18 上海大亚科技有限公司 Audio operational amplification circuit structure and audio output circuit structure
GB2505684A (en) * 2012-09-07 2014-03-12 Enmodus Ltd Cancellation of transmitter leakage in a transceiver using a predetermined phase relationship between transmit and receive carriers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931575A (en) * 1974-10-21 1976-01-06 United Technologies Corporation Filter stabilized single oscillator transceivers
US3935533A (en) * 1973-03-02 1976-01-27 United Technologies Corporation Single oscillator microwave transceiver
WO1985002734A1 (en) * 1983-12-05 1985-06-20 Motorola, Inc. Duplex communication transceiver with modulation cancellation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5915416B2 (en) * 1980-09-24 1984-04-09 日本電信電話株式会社 mobile radio
US5550865A (en) 1993-05-05 1996-08-27 National Semiconductor Corporation Frequency modulator for data transceiver
US5444737A (en) 1993-05-05 1995-08-22 National Semiconductor Corporation Wireless data transceiver
US5603113A (en) * 1993-06-16 1997-02-11 Oki Telecom Automatic gain control circuit for both receiver and transmitter adjustable amplifiers including a linear signal level detector with DC blocking, DC adding, and AC removing components
NO305499B1 (en) * 1996-11-06 1999-06-07 Nera Asa Downconversion system and method in which the received signal is downconverted
US6308048B1 (en) * 1997-11-19 2001-10-23 Ericsson Inc. Simplified reference frequency distribution in a mobile phone

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935533A (en) * 1973-03-02 1976-01-27 United Technologies Corporation Single oscillator microwave transceiver
US3931575A (en) * 1974-10-21 1976-01-06 United Technologies Corporation Filter stabilized single oscillator transceivers
WO1985002734A1 (en) * 1983-12-05 1985-06-20 Motorola, Inc. Duplex communication transceiver with modulation cancellation

Also Published As

Publication number Publication date
NO20026060L (en) 2003-02-26
DE60110588T2 (en) 2006-02-23
KR20030010743A (en) 2003-02-05
DE60110588D1 (en) 2005-06-09
EP1295404B1 (en) 2005-05-04
CA2402428A1 (en) 2002-01-03
US6735181B1 (en) 2004-05-11
CN1217493C (en) 2005-08-31
EP1295404A2 (en) 2003-03-26
JP2004502377A (en) 2004-01-22
NO20026060D0 (en) 2002-12-17
AU2001266651A1 (en) 2002-01-08
TW517480B (en) 2003-01-11
CN1437797A (en) 2003-08-20
WO2002001734A2 (en) 2002-01-03

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