BR9709765A - Aparelho método e artigo de fabricação para compensação da freqência portadora em rádio fm - Google Patents

Aparelho método e artigo de fabricação para compensação da freqência portadora em rádio fm

Info

Publication number
BR9709765A
BR9709765A BR9709765A BR9709765A BR9709765A BR 9709765 A BR9709765 A BR 9709765A BR 9709765 A BR9709765 A BR 9709765A BR 9709765 A BR9709765 A BR 9709765A BR 9709765 A BR9709765 A BR 9709765A
Authority
BR
Brazil
Prior art keywords
compensation
radio
article
manufacture
carrier frequency
Prior art date
Application number
BR9709765A
Other languages
English (en)
Inventor
Andrew Dwight Dingsor
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of BR9709765A publication Critical patent/BR9709765A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/142—Compensating direct current components occurring during the demodulation and which are caused by mistuning
    • 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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
  • Superheterodyne Receivers (AREA)
BR9709765A 1996-05-24 1997-05-05 Aparelho método e artigo de fabricação para compensação da freqência portadora em rádio fm BR9709765A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/655,331 US5761259A (en) 1996-05-24 1996-05-24 Apparatus, method and article of manufacture for carrier frequency compensation in a FM radio
PCT/US1997/007591 WO1997044898A1 (en) 1996-05-24 1997-05-05 An apparatus, method and article of manufacture for carrier frequency compensation in an fm radio

Publications (1)

Publication Number Publication Date
BR9709765A true BR9709765A (pt) 1999-08-10

Family

ID=24628459

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9709765A BR9709765A (pt) 1996-05-24 1997-05-05 Aparelho método e artigo de fabricação para compensação da freqência portadora em rádio fm

Country Status (15)

Country Link
US (1) US5761259A (pt)
EP (1) EP0904635B1 (pt)
JP (1) JP3429005B2 (pt)
KR (1) KR100315938B1 (pt)
CN (1) CN1100386C (pt)
BR (1) BR9709765A (pt)
CA (1) CA2248072C (pt)
CZ (1) CZ293369B6 (pt)
DE (1) DE69723442T2 (pt)
ES (1) ES2197347T3 (pt)
HU (1) HUP9902406A3 (pt)
MY (1) MY113638A (pt)
PL (1) PL187931B1 (pt)
TW (1) TW355890B (pt)
WO (1) WO1997044898A1 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5890057A (en) * 1996-11-27 1999-03-30 Sierra Wireless, Inc. Modulation signal calibration between modem and radio using loopback
US6205495B1 (en) * 1998-07-15 2001-03-20 Gateway, Inc. Wireless interface for standard modems
US6400930B1 (en) * 1998-11-06 2002-06-04 Dspc Israel, Ltd. Frequency tuning for radio transceivers
US6801581B1 (en) * 2000-09-13 2004-10-05 Intel Corporation DC offset cancellation
US6968490B2 (en) * 2003-03-07 2005-11-22 Intel Corporation Techniques for automatic eye-degradation testing of a high-speed serial receiver
KR100686140B1 (ko) * 2005-01-18 2007-02-23 엘지전자 주식회사 트래커 락 발생 방법
FR2889331B1 (fr) * 2005-07-28 2008-02-01 Sercel Sa Appareil et procede de compensation de derive d'une horloge locale utilisee comme frequence d'echantillonnage
JP2007088657A (ja) * 2005-09-21 2007-04-05 Neuro Solution Corp Ｆｍトランスミッタ
US7773026B2 (en) * 2008-08-01 2010-08-10 Infineon Technologies Ag Heterodyne transceiver systems and methods
CN105490685B (zh) * 2015-11-18 2019-03-01 张发平 多频段自适应通讯系统
CN114244380B (zh) * 2021-12-31 2023-12-01 北京航天测控技术有限公司 一种模块化微波信号源系统

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JPS5826692B2 (ja) * 1975-11-20 1983-06-04 ソニー株式会社 センキヨクソウチ
JPS5811131B2 (ja) * 1975-11-22 1983-03-01 ソニー株式会社 センキヨクソウチ
US4905305A (en) * 1986-03-26 1990-02-27 General Electric Company Method and apparatus for controlling the frequency of operation and at least one further variable operating parameter of a radio communications device
US4870699A (en) * 1986-03-26 1989-09-26 General Electric Company Method and apparatus for controlling the frequency of operation and at least one further variable operating parameter of a radio communications device
US4825448A (en) * 1986-08-07 1989-04-25 International Mobile Machines Corporation Subscriber unit for wireless digital telephone system
US5052020A (en) * 1990-01-18 1991-09-24 Norand Corporation Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions
GB8830282D0 (en) * 1988-12-28 1989-02-22 Astec Int Ltd The setting of electronic circuits
US5202900A (en) * 1989-08-07 1993-04-13 Motorola, Inc. Spectrally efficient digital FM modulated transmitter
FI83718C (fi) * 1989-09-25 1991-08-12 Nokia Mobile Phones Ltd Foerfarande foer instaemning och kompensation av radiotelefonens nivaoindikator.
FI83715C (fi) * 1989-09-25 1991-08-12 Nokia Mobile Phones Ltd Logikstyrd intrimning och kompensation av signalnivaoer och deviationer i en radiotelefon.
WO1991005427A1 (en) * 1989-09-29 1991-04-18 Motorola, Inc. Method of dc offset compensation using a transmitted dc compensation signal
US5048057A (en) * 1990-01-02 1991-09-10 At&T Bell Laboratories Wireless local area network
US5291520A (en) * 1991-02-06 1994-03-01 General Datacomm, Inc. Methods and apparatus employing distribution preserving Tomlinson precoding in transmission of digital data signals
JPH0529879A (ja) * 1991-07-22 1993-02-05 Toshiba Corp 無線通信装置の自動周波数制御回路
FI89437C (fi) * 1991-11-01 1993-09-27 Nokia Mobile Phones Ltd Digitaldetektor foer ett soekaranlaeggningsystem
US5420822A (en) * 1992-03-31 1995-05-30 Kabushiki Kaisha Toshiba Non-volatile semiconductor memory device
US5396251A (en) * 1992-12-15 1995-03-07 Texas Instruments Deutschland Gmbh Electronic transponder tuning procedure
US5343498A (en) * 1993-03-08 1994-08-30 General Electric Company Sample timing selection and frequency offset correction for U.S. digital cellular mobile receivers
JP2883260B2 (ja) * 1993-04-20 1999-04-19 三菱電機株式会社 歪補償回路
US5533056A (en) * 1993-05-05 1996-07-02 National Semiconductor Corporation Data encoder/decoder for data transceiver
US5533048A (en) * 1993-07-28 1996-07-02 Celeritas Technologies, Ltd. Apparatus and method for compensating for limiter induced non-linear distortion in a wireless data communication system
US5663989A (en) * 1993-10-28 1997-09-02 Plessey Semiconductors Limited Control arrangements for digital radio receivers
US5453748A (en) * 1993-11-15 1995-09-26 Westinghouse Norden Systems Method and apparatus for responding to an interrogation signal
US5584062A (en) * 1994-01-24 1996-12-10 Motorola, Inc. Method and apparatus for compensating phase locked receivers
US5638404A (en) * 1994-09-22 1997-06-10 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Communications Pre-compensated frequency modulation (PFM)
US5604771A (en) * 1994-10-04 1997-02-18 Quiros; Robert System and method for transmitting sound and computer data
US5608761A (en) * 1994-12-09 1997-03-04 Motorola, Inc. Method, device, and radio for compensating for modulator frequency drift while allowing for data transmission

Also Published As

Publication number Publication date
EP0904635B1 (en) 2003-07-09
CA2248072C (en) 2003-03-25
ES2197347T3 (es) 2004-01-01
US5761259A (en) 1998-06-02
MY113638A (en) 2002-04-30
CZ293369B6 (cs) 2004-04-14
HUP9902406A3 (en) 1999-12-28
DE69723442D1 (de) 2003-08-14
PL329932A1 (en) 1999-04-26
JPH11510677A (ja) 1999-09-14
PL187931B1 (pl) 2004-11-30
TW355890B (en) 1999-04-11
WO1997044898A1 (en) 1997-11-27
DE69723442T2 (de) 2004-06-09
KR100315938B1 (ko) 2002-01-15
KR20000015962A (ko) 2000-03-25
EP0904635A1 (en) 1999-03-31
CN1100386C (zh) 2003-01-29
CZ381098A3 (cs) 1999-08-11
CN1220785A (zh) 1999-06-23
HUP9902406A2 (hu) 1999-11-29
JP3429005B2 (ja) 2003-07-22
CA2248072A1 (en) 1997-11-27

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]