ATE162674T1 - Verfahren zum sendefrequenzversatz mittels frequenzteilung zur verringerung der selbstinterferenz - Google Patents

Verfahren zum sendefrequenzversatz mittels frequenzteilung zur verringerung der selbstinterferenz

Info

Publication number
ATE162674T1
ATE162674T1 AT92923284T AT92923284T ATE162674T1 AT E162674 T1 ATE162674 T1 AT E162674T1 AT 92923284 T AT92923284 T AT 92923284T AT 92923284 T AT92923284 T AT 92923284T AT E162674 T1 ATE162674 T1 AT E162674T1
Authority
AT
Austria
Prior art keywords
frequency
communication device
radio communication
waveform
during
Prior art date
Application number
AT92923284T
Other languages
English (en)
Inventor
Paul D Marko
Jaime A Borras
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
Application granted granted Critical
Publication of ATE162674T1 publication Critical patent/ATE162674T1/de

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
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2215/00—Reducing interference at the transmission system level
    • H04B2215/064—Reduction of clock or synthesizer reference frequency harmonics

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
  • Noise Elimination (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Superheterodyne Receivers (AREA)
AT92923284T 1991-11-04 1992-10-30 Verfahren zum sendefrequenzversatz mittels frequenzteilung zur verringerung der selbstinterferenz ATE162674T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/787,279 US5276915A (en) 1991-11-04 1991-11-04 Transceiver having a divide-down transmit offset scheme

Publications (1)

Publication Number Publication Date
ATE162674T1 true ATE162674T1 (de) 1998-02-15

Family

ID=25140967

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92923284T ATE162674T1 (de) 1991-11-04 1992-10-30 Verfahren zum sendefrequenzversatz mittels frequenzteilung zur verringerung der selbstinterferenz

Country Status (6)

Country Link
US (1) US5276915A (de)
EP (1) EP0654192B1 (de)
AT (1) ATE162674T1 (de)
CA (1) CA2122735C (de)
DE (1) DE69224216D1 (de)
WO (1) WO1993009606A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06152467A (ja) * 1992-11-06 1994-05-31 Nec Corp 無線通信機
JPH06216802A (ja) * 1993-01-13 1994-08-05 Kyocera Corp 送受信装置
JP2675747B2 (ja) * 1993-03-26 1997-11-12 日立電子株式会社 無線機
US5511236A (en) * 1993-12-07 1996-04-23 National Semiconductor Corporation Half duplex RF transceiver
US5590413A (en) * 1994-01-14 1996-12-31 Sun Microsystems, Inc. Radio transceiver having shared modulation and demodulation mixer circuits
US5787344A (en) 1994-06-28 1998-07-28 Scheinert; Stefan Arrangements of base transceiver stations of an area-covering network
JP3252653B2 (ja) * 1995-06-05 2002-02-04 三菱電機株式会社 送受信機
US6839548B1 (en) 1996-03-01 2005-01-04 International Business Machines Corporation Radio transmitter
WO1999025076A1 (en) * 1997-11-06 1999-05-20 Koninklijke Philips Electronics N.V. A transceiver and a telecommunication system having a transceiver
GB2343567B (en) * 1998-11-05 2002-03-20 Nec Technologies Digital transmit loop
US6516184B1 (en) * 1999-08-31 2003-02-04 Skyworks Solutions, Inc. Multi-band transceiver having multi-slot capability
US8532588B1 (en) 2002-08-13 2013-09-10 The Connectivity Patent Trust Apparatus for signal power loss reduction in RF communication systems
US7212788B2 (en) * 2002-08-13 2007-05-01 Atheros Communications, Inc. Method and apparatus for signal power loss reduction in RF communication systems
US7555275B2 (en) * 2006-04-14 2009-06-30 Viasat, Inc. Systems, methods and devices for dual closed loop modulation controller for nonlinear RF amplifier
US8044734B2 (en) * 2008-08-01 2011-10-25 Qualcomm Incorporated Method and apparatus for mitigating VCO pulling

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324396A (en) * 1964-09-28 1967-06-06 Bell Telephone Labor Inc Multiple conversion transceiver utilizing single oscillator
US4551856A (en) * 1983-05-16 1985-11-05 Motorola, Inc. Synthesized multiple conversion receiver system with provision for avoiding receiver self-quieting spurious response
US4512035A (en) * 1983-05-16 1985-04-16 Motorola, Inc. Method of programming a synthesizer ROM for elimination of receiver self-quieting
GB2155263A (en) * 1984-03-02 1985-09-18 Philips Electronic Associated Frequency synthesised multichannel radio apparatus
JPS63131644A (ja) * 1986-11-20 1988-06-03 Pioneer Electronic Corp Ｐｓｋ送信装置
US4879758A (en) * 1987-01-02 1989-11-07 Motorola, Inc. Communication receiver system having a decoder operating at variable frequencies
US4903257A (en) * 1987-05-27 1990-02-20 Fujitsu Limited Digital two-way radio-communication system using single frequency
GB8806194D0 (en) * 1988-03-16 1988-04-13 Shaye Communications Ltd Transceivers

Also Published As

Publication number Publication date
EP0654192B1 (de) 1998-01-21
WO1993009606A1 (en) 1993-05-13
EP0654192A1 (de) 1995-05-24
EP0654192A4 (de) 1995-09-27
CA2122735A1 (en) 1993-05-13
US5276915A (en) 1994-01-04
DE69224216D1 (de) 1998-02-26
CA2122735C (en) 1998-12-22

Similar Documents

Publication Publication Date Title
ATE162674T1 (de) Verfahren zum sendefrequenzversatz mittels frequenzteilung zur verringerung der selbstinterferenz
GB1486319A (en) Distance measurement
DE59008497D1 (de) Übertragungsstrecke.
NO943193L (no) Fremgangsmåte og arrangement for måling av en mottakerantennes tilstand
ATE186163T1 (de) Verfahren zum prüfen eines sender-empfängers und basisstation einer zeitmultiplexfunkkommunikationsanlage
DE69019561D1 (de) Frequenzsynchronisation von Funkgeräten eines Funknetzes.
FI980807A0 (fi) Beraekningsfoerfarande och radiosystem
FI97660B (fi) Menetelmä radiojärjestelmän tukiasemaympäristön häiriötason mittaamiseksi, sekä solukkoradiojärjestelmä
FI922802A0 (fi) Foerfarande foer oeverfoering av digitala informationer, saerskilt ljudinformation i en tv-kanal.
EP0366406A3 (de) Vielfach-Hochfrequenz-Radarbetrieb mit einem einzigen Empfänger
WO2001028150A3 (en) Method and apparatus for eliminating the effects of frequency offsets in a digital communication system
EP0940929A3 (de) Verfahren und Voorrichtung zum Funkkommunikation mit Aussendung der Zwischenfrequenz
GB1368678A (en) Spread spectrum linear fm communications system
DE69531495D1 (de) Austauschbare basisstation für spreizspektrum
DE69114704D1 (de) Funktestschleife für funksender/empfänger.
SE9500389D0 (sv) Förfarande och system för begränsning av räckvidd hos fjärrstyrsystem
TW361028B (en) Synchronization method, and associated circuitry, for improved synchronization of a receiver with a transmitter using nonlinear transformation metrics
CA2109923A1 (en) Frequency offset method and apparatus for use in a transceiver
JPS6423185A (en) Spread spectrum distance measurement system
GB2283394A (en) Method and circuit for retuning of a radio receiver
GB549186A (en) Improvement in radio measuring systems
GB2329290A (en) Method of transmitting and receiving data,system and receiver therefor
HUP9903052A3 (en) Wireless data modem, method and product for carrier frequency compensation in an fm radio transmitter
JPS5656047A (en) Repeating system for single-wave press-to-talk communication
FR2353087A1 (fr) Radio-transmission et restitution numerique de l' heure

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties