SE520791C2 - Mottagarintegrerad krets för mobil telefon - Google Patents

Mottagarintegrerad krets för mobil telefon

Info

Publication number
SE520791C2
SE520791C2 SE9701081A SE9701081A SE520791C2 SE 520791 C2 SE520791 C2 SE 520791C2 SE 9701081 A SE9701081 A SE 9701081A SE 9701081 A SE9701081 A SE 9701081A SE 520791 C2 SE520791 C2 SE 520791C2
Authority
SE
Sweden
Prior art keywords
signal
amplifier
pass filter
variable gain
low
Prior art date
Application number
SE9701081A
Other languages
English (en)
Swedish (sv)
Other versions
SE9701081L (sv
SE9701081D0 (sv
Inventor
Sadao Igarashi
Kazuharu Aoki
Original Assignee
Alps Electric Co 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of SE9701081D0 publication Critical patent/SE9701081D0/xx
Publication of SE9701081L publication Critical patent/SE9701081L/
Publication of SE520791C2 publication Critical patent/SE520791C2/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0002—Modulated-carrier systems analog front ends; means for connecting modulators, demodulators or transceivers to a transmission line
    • 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
    • H04B1/38—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Noise Elimination (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
SE9701081A 1996-03-29 1997-03-24 Mottagarintegrerad krets för mobil telefon SE520791C2 (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8077098A JPH09270723A (ja) 1996-03-29 1996-03-29 携帯電話機の受信回路用ｉｃ

Publications (3)

Publication Number Publication Date
SE9701081D0 SE9701081D0 (sv) 1997-03-24
SE9701081L SE9701081L (sv) 1997-09-30
SE520791C2 true SE520791C2 (sv) 2003-08-26

Family

ID=13624323

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9701081A SE520791C2 (sv) 1996-03-29 1997-03-24 Mottagarintegrerad krets för mobil telefon

Country Status (8)

Country Link
US (1) US6236848B1 (ko)
JP (1) JPH09270723A (ko)
KR (1) KR100213301B1 (ko)
CN (1) CN1084576C (ko)
DE (1) DE19713102C2 (ko)
FR (1) FR2746989B1 (ko)
GB (1) GB2311674B (ko)
SE (1) SE520791C2 (ko)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19805963C2 (de) * 1998-02-13 2001-02-22 Siemens Ag Integrierbare Schaltung zur Frequenzaufbereitung eines im UHF-Bereich arbeitenden Funk-Sende-Empfängers, insbesondere eines Schnurlostelefons
JP3562967B2 (ja) * 1998-08-06 2004-09-08 アルプス電気株式会社 Ｑｐｓｋ変調信号受信ユニット
CN1149734C (zh) 1998-10-22 2004-05-12 因芬尼昂技术股份公司 稳频的发射/接收电路装置
US6765930B1 (en) * 1998-12-11 2004-07-20 Sony Corporation Decoding apparatus and method, and providing medium
JP3618055B2 (ja) * 1999-02-05 2005-02-09 富士通株式会社 携帯移動端末および送信装置
WO2000054420A1 (fr) * 1999-03-11 2000-09-14 Mitsubishi Denki Kabushiki Kaisha Dispositif terminal radio
GB2351404B (en) * 1999-06-24 2003-11-12 Nokia Mobile Phones Ltd A transmitter and a modulator therefor
US7327775B1 (en) * 1999-12-23 2008-02-05 Nokia Corporation CDMA receiver
TW448610B (en) * 2000-02-29 2001-08-01 Microelectronics Tech Inc RF signal down converting method and circuit having high separation of signal
FR2821228B1 (fr) * 2001-02-16 2003-04-11 Thomson Multimedia Sa Dispositif de reception a controle de gain automatique
US20020131514A1 (en) * 2001-03-13 2002-09-19 Ng Jason Wee Peng Waveform diversity for communication using pulse decoding
US6831957B2 (en) * 2001-03-14 2004-12-14 Texas Instruments Incorporated System and method of dual mode automatic gain control for a digital radio receiver
US7212586B2 (en) * 2002-01-18 2007-05-01 Broadcom Corporation Direct conversion RF transceiver for wireless communications
US6839645B2 (en) * 2002-04-17 2005-01-04 General Electric Company Method and apparatus to perform poly-phase instrumentation with single-phase instruments
CN1792057A (zh) * 2003-05-16 2006-06-21 汤姆森许可贸易公司 分层及分等级调制系统的一体接收机
US8917759B2 (en) * 2012-01-31 2014-12-23 Innophase Inc. Transceiver architecture and methods for demodulating and transmitting phase shift keying signals
JP2015050685A (ja) * 2013-09-03 2015-03-16 ソニー株式会社 オーディオ信号処理装置および方法、並びにプログラム

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4910467A (en) * 1988-11-02 1990-03-20 Motorola, Inc. Method and apparatus for decoding a quadrature modulated signal
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
US5187809A (en) 1990-08-24 1993-02-16 Motorola, Inc. Dual mode automatic gain control
US5107225A (en) 1990-11-30 1992-04-21 Qualcomm Incorporated High dynamic range closed loop automatic gain control circuit
US5142695A (en) 1991-03-21 1992-08-25 Novatel Communications, Ltd. Cellular radio-telephone receiver employing improved technique for generating an indication of received signal strength
US5228074A (en) * 1991-04-15 1993-07-13 Sony Corporation Dual mode cellular telephone apparatus
JP3061674B2 (ja) 1992-01-23 2000-07-10 アルプス電気株式会社 利得制御回路
US5325401A (en) * 1992-03-13 1994-06-28 Comstream Corporation L-band tuner with quadrature downconverter for PSK data applications
US5392460A (en) * 1993-04-23 1995-02-21 Nokia Mobile Phones Ltd. Dual mode radiotelephone terminal selectively operable for frequency modulated or phase modulated operation
JP2705538B2 (ja) * 1993-09-22 1998-01-28 日本電気株式会社 Ｃｄｍａモード及びｆｍモードの共用受信機
GB2286302B (en) 1994-01-29 1998-12-16 Motorola Inc Power amplifier and radio transmitter
JP3183078B2 (ja) * 1994-02-28 2001-07-03 三菱電機株式会社 制御信号生成回路、これを用いた自動利得制御回路、これを用いた受信機及びこれを用いた通信システム
US5469115A (en) 1994-04-28 1995-11-21 Qualcomm Incorporated Method and apparatus for automatic gain control in a digital receiver
ZA95605B (en) 1994-04-28 1995-12-20 Qualcomm Inc Method and apparatus for automatic gain control and dc offset cancellation in quadrature receiver
JPH07321694A (ja) * 1994-05-27 1995-12-08 Alps Electric Co Ltd 時分割多重接続複信方式通信機
JPH07336268A (ja) * 1994-06-07 1995-12-22 Japan Radio Co Ltd デュアルモード無線機
US5548616A (en) 1994-09-09 1996-08-20 Nokia Mobile Phones Ltd. Spread spectrum radiotelephone having adaptive transmitter gain control
JP3252639B2 (ja) * 1995-03-03 2002-02-04 三菱電機株式会社 検波器及び受信装置並びに送信装置
US5745839A (en) * 1995-09-01 1998-04-28 Cd Radio, Inc. Satellite multiple access system with distortion cancellation and compression compensation
US5764707A (en) * 1996-12-09 1998-06-09 Philips Electronics North America Corp. Method and apparatus for improved phase shift keyed (PSK) signal demodulation

Also Published As

Publication number Publication date
GB9705562D0 (en) 1997-05-07
DE19713102A1 (de) 1997-11-06
GB2311674A (en) 1997-10-01
SE9701081L (sv) 1997-09-30
KR100213301B1 (ko) 1999-08-02
CN1084576C (zh) 2002-05-08
SE9701081D0 (sv) 1997-03-24
GB2311674B (en) 2000-03-08
JPH09270723A (ja) 1997-10-14
FR2746989A1 (fr) 1997-10-03
KR970068203A (ko) 1997-10-13
CN1165465A (zh) 1997-11-19
FR2746989B1 (fr) 2004-07-23
DE19713102C2 (de) 2003-11-27
US6236848B1 (en) 2001-05-22

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Legal Events

Date Code Title Description
NUG Patent has lapsed