FR2690025B1 - Procede et appareil de decalage de frequence pour emetteur-recepteur. - Google Patents

Procede et appareil de decalage de frequence pour emetteur-recepteur.

Info

Publication number
FR2690025B1
FR2690025B1 FR9304365A FR9304365A FR2690025B1 FR 2690025 B1 FR2690025 B1 FR 2690025B1 FR 9304365 A FR9304365 A FR 9304365A FR 9304365 A FR9304365 A FR 9304365A FR 2690025 B1 FR2690025 B1 FR 2690025B1
Authority
FR
France
Prior art keywords
transceiver
frequency shift
shift method
frequency
shift
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
FR9304365A
Other languages
English (en)
Other versions
FR2690025A1 (fr
Inventor
Randall R Hillock
John S Ruppel
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.)
Motorola Mobility LLC
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of FR2690025A1 publication Critical patent/FR2690025A1/fr
Application granted granted Critical
Publication of FR2690025B1 publication Critical patent/FR2690025B1/fr
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
    • H04B1/38—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
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
    • 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
FR9304365A 1992-04-14 1993-04-14 Procede et appareil de decalage de frequence pour emetteur-recepteur. Expired - Lifetime FR2690025B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86959292A 1992-04-14 1992-04-14

Publications (2)

Publication Number Publication Date
FR2690025A1 FR2690025A1 (fr) 1993-10-15
FR2690025B1 true FR2690025B1 (fr) 1997-08-08

Family

ID=25353873

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9304365A Expired - Lifetime FR2690025B1 (fr) 1992-04-14 1993-04-14 Procede et appareil de decalage de frequence pour emetteur-recepteur.

Country Status (8)

Country Link
US (1) US5715520A (fr)
JP (1) JPH05300048A (fr)
CN (1) CN1028704C (fr)
CA (1) CA2109923C (fr)
FR (1) FR2690025B1 (fr)
IT (1) IT1261782B (fr)
MX (1) MX9302156A (fr)
WO (1) WO1993021693A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1022852A (ja) * 1996-07-02 1998-01-23 Nec Corp 無線通信装置
US6112059A (en) * 1997-11-12 2000-08-29 Motorola, Inc. Off-channel leakage power monitor apparatus and method
US6516184B1 (en) * 1999-08-31 2003-02-04 Skyworks Solutions, Inc. Multi-band transceiver having multi-slot capability
EP1249076B1 (fr) * 2000-10-26 2004-02-18 Koninklijke Philips Electronics N.V. Emetteur-recepteur radio a conversion directe
US7466962B2 (en) * 2005-06-14 2008-12-16 Motorola, Inc Methods and apparatus of providing a radio frequency local oscillator signal for a transceiver
US9143085B2 (en) 2012-03-01 2015-09-22 Qualcomm Incorporated Frequency synthesizer architecture in a time-division duplex mode for a wireless device

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944925A (en) * 1974-08-05 1976-03-16 Motorola, Inc. Phase-locked loop transceiver having automatic frequency offset selectability
JPS524105A (en) * 1975-06-27 1977-01-13 Trio Kenwood Corp Frequency synthesizer-method transmitter-receiver
US4194151A (en) * 1978-06-29 1980-03-18 General Electric Company Multifrequency generator
US4558453A (en) * 1981-12-16 1985-12-10 Harris Corporation Synchronization method and frequency hopping communication system
US4476575A (en) * 1982-12-13 1984-10-09 General Electric Company Radio transceiver
JPS62274934A (ja) * 1986-05-23 1987-11-28 Nec Corp 送受信装置
GB8806194D0 (en) * 1988-03-16 1988-04-13 Shaye Communications Ltd Transceivers
JP2850160B2 (ja) * 1991-01-25 1999-01-27 松下電器産業株式会社 時分割複信無線送受信装置
DE69225259T2 (de) * 1991-02-22 1998-08-20 Sony Corp Zeitduplex-Sender-Empfänger
JP2800858B2 (ja) * 1991-09-18 1998-09-21 日本電気株式会社 無線電話装置
JPH06152467A (ja) * 1992-11-06 1994-05-31 Nec Corp 無線通信機
KR100355838B1 (ko) * 1993-03-10 2002-10-12 내셔널 세미콘덕터 코포레이션 무선 주파수 원격 통신용 송수신기
US5465409A (en) * 1994-03-07 1995-11-07 Motorola, Inc. Radio architecture with dual frequency source selection
US5475677A (en) * 1994-12-29 1995-12-12 Bell Communications Research Inc. Compatible licensed and unlicensed band portable handset unit for TDMA wireless communications system

Also Published As

Publication number Publication date
US5715520A (en) 1998-02-03
WO1993021693A1 (fr) 1993-10-28
IT1261782B (it) 1996-06-03
CA2109923A1 (fr) 1993-10-28
JPH05300048A (ja) 1993-11-12
CA2109923C (fr) 1999-01-26
ITRM930210A1 (it) 1994-10-05
CN1028704C (zh) 1995-05-31
CN1077579A (zh) 1993-10-20
MX9302156A (es) 1993-10-29
FR2690025A1 (fr) 1993-10-15
ITRM930210A0 (it) 1993-04-05

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Legal Events

Date Code Title Description
TP Transmission of property

Owner name: MOTOROLA MOBILITY, INC., US

Effective date: 20110912