JP3524947B2 - 直接変換受信機 - Google Patents

直接変換受信機

Info

Publication number
JP3524947B2
JP3524947B2 JP29330993A JP29330993A JP3524947B2 JP 3524947 B2 JP3524947 B2 JP 3524947B2 JP 29330993 A JP29330993 A JP 29330993A JP 29330993 A JP29330993 A JP 29330993A JP 3524947 B2 JP3524947 B2 JP 3524947B2
Authority
JP
Japan
Prior art keywords
signal
direct conversion
conversion receiver
data
receiver according
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
Application number
JP29330993A
Other languages
English (en)
Japanese (ja)
Other versions
JPH06224951A (ja
Inventor
モヒンドラ リシ
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
Koninklijke Philips NV
Koninklijke Philips Electronics 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 Koninklijke Philips NV, Koninklijke Philips Electronics NV filed Critical Koninklijke Philips NV
Publication of JPH06224951A publication Critical patent/JPH06224951A/ja
Application granted granted Critical
Publication of JP3524947B2 publication Critical patent/JP3524947B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B1/06—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
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations
    • 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)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
JP29330993A 1992-11-26 1993-11-24 直接変換受信機 Expired - Lifetime JP3524947B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL92203648:8 1992-11-26
EP92203648 1992-11-26

Publications (2)

Publication Number Publication Date
JPH06224951A JPH06224951A (ja) 1994-08-12
JP3524947B2 true JP3524947B2 (ja) 2004-05-10

Family

ID=8211074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29330993A Expired - Lifetime JP3524947B2 (ja) 1992-11-26 1993-11-24 直接変換受信機

Country Status (6)

Country Link
US (1) US5438692A (US07224749-20070529-P00002.png)
JP (1) JP3524947B2 (US07224749-20070529-P00002.png)
KR (1) KR100288169B1 (US07224749-20070529-P00002.png)
DE (1) DE69332685T2 (US07224749-20070529-P00002.png)
SG (1) SG44852A1 (US07224749-20070529-P00002.png)
TW (1) TW225067B (US07224749-20070529-P00002.png)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100355684B1 (ko) * 1992-11-26 2002-12-11 코닌클리케 필립스 일렉트로닉스 엔.브이. 직접변환수신기
US5617451A (en) * 1993-09-13 1997-04-01 Matsushita Electric Industrial Co., Ltd. Direct-conversion receiver for digital-modulation signal with signal strength detection
US5598441A (en) * 1994-10-13 1997-01-28 Westinghouse Electric Corp. Carrier acquisition technique for mobile radio QPSK demodulator
US5949832A (en) * 1996-03-26 1999-09-07 Sicom, Inc. Digital receiver with tunable analog filter and method therefor
WO1998010523A1 (en) * 1996-09-06 1998-03-12 Philips Electronics N.V. A zero-if receiver
US6011816A (en) * 1996-09-18 2000-01-04 Wireless Access Direct demodulation method and apparatus
US5870670A (en) * 1996-09-23 1999-02-09 Motorola, Inc. Integrated image reject mixer
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
US5901184A (en) * 1997-06-18 1999-05-04 Lsi Logic Corporation Extended range voltage controlled oscillator for frequency synthesis in a satellite receiver
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
US6192225B1 (en) 1998-04-22 2001-02-20 Ericsson Inc. Direct conversion receiver
US6243569B1 (en) 1998-08-12 2001-06-05 Analog Devices, Inc. Direct conversion circuit for radio frequency signals
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
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
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
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
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
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
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
US6304136B1 (en) * 1999-03-03 2001-10-16 Level One Communications, Inc. Reduced noise sensitivity, high performance FM demodulator circuit and method
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
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
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
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
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US6694131B1 (en) 2001-02-21 2004-02-17 Mitsubishi Electric Corporation Method and apparatus for adaptive image rejection
JP2005501365A (ja) * 2001-08-31 2005-01-13 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ データ信号の品質を決定する装置及び方法
US6845233B2 (en) * 2001-10-09 2005-01-18 Freescale Semiconductor, Inc. RF receivers with reduced spurious response for mobile stations and methods therefor
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
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
JP3711106B2 (ja) * 2002-12-27 2005-10-26 株式会社東芝 データ処理装置及びデータ処理方法
US7003263B2 (en) * 2003-05-12 2006-02-21 Lucent Technologies Inc. Telecommunications receiver and a transmitter
US7164901B2 (en) * 2003-12-24 2007-01-16 Agency For Science, Technology And Research DC offset-free RF front-end circuits and systems for direct conversion receivers
JP4095587B2 (ja) * 2004-06-30 2008-06-04 株式会社東芝 データ処理装置及びデータ処理方法
JP4488855B2 (ja) * 2004-09-27 2010-06-23 パナソニック株式会社 半導体回路装置
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
CA2623805A1 (en) * 2007-03-02 2008-09-02 Robert A. Hubbs Quality of service based preemptive routing
US8140038B2 (en) * 2009-10-14 2012-03-20 Issc Technologies Corp. Adaptive receivers
US9024815B2 (en) 2011-05-27 2015-05-05 Brooks Engineering International, Llc Direct-to-digital software-defined radar
US8737549B2 (en) 2012-04-30 2014-05-27 Lsi Corporation Receiver having limiter-enhanced data eye openings
US9893916B2 (en) * 2016-07-01 2018-02-13 Texas Instruments Incorporated Methods and apparatus for performing a high speed phase demodulation scheme using a low bandwidth phase-lock loop

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180419A (en) * 1985-09-16 1987-03-25 Philips Electronic Associated Direct conversion receiver
US5109544A (en) * 1990-11-05 1992-04-28 Motorola, Inc. Paging receiver with automatic frequency control

Also Published As

Publication number Publication date
DE69332685T2 (de) 2003-11-13
US5438692A (en) 1995-08-01
TW225067B (US07224749-20070529-P00002.png) 1994-06-11
JPH06224951A (ja) 1994-08-12
KR100288169B1 (ko) 2001-05-02
KR940012878A (ko) 1994-06-24
DE69332685D1 (de) 2003-03-20
SG44852A1 (en) 1997-12-19

Similar Documents

Publication Publication Date Title
JP3524947B2 (ja) 直接変換受信機
US5584068A (en) Direct conversion receiver
EP1835628B1 (en) Wireless receiver and wireless transmitter
US4816769A (en) BPSK demodulator and FM receiver for digital data pagers
EP0500373B1 (en) Time division duplex transmitter-receiver
US6034990A (en) Digital radio transmission and reception system applying a direct modulation and demodulation method
JPH04342321A (ja) 無線通信装置の電界強度検出回路
CA2051880A1 (en) Automatic frequency control system and method for frequency-shift-key data transmission systems
US5701600A (en) Radio receiver and method of calibrating same
US6240147B1 (en) Auto frequency control apparatus
GB2308247A (en) Communication apparatus
EP0599409B1 (en) A direct conversion receiver
US5444736A (en) Radio communication apparatus having an automatic frequency control circuit for controlling a transmission frequency on the basis of a reception frequency
US20060062331A1 (en) Demodulator for use in wireless communications and receiver, method and terminal using it
US5564091A (en) Method and apparatus for operating an automatic frequency control in a radio
US7359448B2 (en) Remote transmitter system and method
US5963600A (en) Micro-controller based frequency calibration
JPH07297779A (ja) 自動周波数制御機能を備えたディジタル無線機
EP0599414B1 (en) A direct conversion receiver
JPH051662B2 (US07224749-20070529-P00002.png)
JP2912336B1 (ja) 送受信機
JPH10504956A (ja) デジタル無線システム、デジタル無線装置及び直角復調器
JP2002500850A (ja) Ａｍ品質検出器
JPH1041786A (ja) デジタル携帯電話装置
JPS5930330A (ja) デジタル周波数表示方式

Legal Events

Date Code Title Description
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20040203

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20040216

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080220

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090220

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100220

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100220

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110220

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110220

Year of fee payment: 7

S303 Written request for registration of pledge or change of pledge

Free format text: JAPANESE INTERMEDIATE CODE: R316304

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110220

Year of fee payment: 7

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371

S303 Written request for registration of pledge or change of pledge

Free format text: JAPANESE INTERMEDIATE CODE: R316304

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110220

Year of fee payment: 7

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110220

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120220

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120220

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120220

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120220

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120220

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120220

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130220

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130220

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130220

Year of fee payment: 9

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130220

Year of fee payment: 9

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130220

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130220

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130220

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130220

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130220

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130220

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140220

Year of fee payment: 10

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140220

Year of fee payment: 10

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140220

Year of fee payment: 10

EXPY Cancellation because of completion of term