[go: up one dir, main page]

ATE148278T1 - Synthesizer mit gebrochenem teilverhältnis für ein sprach-/daten-kommunikationssystem - Google Patents

Synthesizer mit gebrochenem teilverhältnis für ein sprach-/daten-kommunikationssystem

Info

Publication number
ATE148278T1
ATE148278T1 AT91906921T AT91906921T ATE148278T1 AT E148278 T1 ATE148278 T1 AT E148278T1 AT 91906921 T AT91906921 T AT 91906921T AT 91906921 T AT91906921 T AT 91906921T AT E148278 T1 ATE148278 T1 AT E148278T1
Authority
AT
Austria
Prior art keywords
integer
fractional
voice
communication system
data communication
Prior art date
Application number
AT91906921T
Other languages
English (en)
Inventor
Steven F Gillig
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 ATE148278T1 publication Critical patent/ATE148278T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H03L7/1974—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division
    • H03L7/1976—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division using a phase accumulator for controlling the counter or frequency divider

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transceivers (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
AT91906921T 1990-04-26 1991-03-25 Synthesizer mit gebrochenem teilverhältnis für ein sprach-/daten-kommunikationssystem ATE148278T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/515,000 US5065408A (en) 1990-04-26 1990-04-26 Fractional-division synthesizer for a voice/data communications systems

Publications (1)

Publication Number Publication Date
ATE148278T1 true ATE148278T1 (de) 1997-02-15

Family

ID=24049585

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91906921T ATE148278T1 (de) 1990-04-26 1991-03-25 Synthesizer mit gebrochenem teilverhältnis für ein sprach-/daten-kommunikationssystem

Country Status (11)

Country Link
US (1) US5065408A (de)
EP (1) EP0479969B1 (de)
JP (1) JP3082860B2 (de)
AT (1) ATE148278T1 (de)
AU (1) AU631496B2 (de)
BR (1) BR9105707A (de)
CA (1) CA2048647C (de)
DE (1) DE69124327D1 (de)
MX (1) MX173959B (de)
NZ (1) NZ237460A (de)
WO (1) WO1991016759A1 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5353311A (en) * 1992-01-09 1994-10-04 Nec Corporation Radio transmitter
JP2659498B2 (ja) * 1992-05-19 1997-09-30 メガソフト株式会社 通信装置
FI923464L (fi) * 1992-07-31 1994-02-01 Nokia Mobile Phones Ltd Foerfarande och system foer alstring av frekvenser i en radiotelefon
US5434887A (en) * 1992-08-25 1995-07-18 Nec Corporation Quadrature modulation circuit for use in a radio transmitter
US5351015A (en) * 1993-02-03 1994-09-27 Silicon Systems, Inc. Time based data separator zone change sequence
US5493700A (en) * 1993-10-29 1996-02-20 Motorola Automatic frequency control apparatus
US5812594A (en) * 1994-10-14 1998-09-22 Rakib; Selim Method and apparatus for implementing carrierless amplitude/phase encoding in a network
FI98420C (fi) * 1995-01-24 1997-06-10 Nokia Mobile Phones Ltd Menetelmä ja kytkentä moduloidun signaalin muodostamiseksi lähetin/vastaanottimessa
DE19534462C2 (de) * 1995-09-16 1999-08-26 Temic Semiconductor Gmbh Übertragungsverfahren
US6163568A (en) * 1995-10-23 2000-12-19 Simtek Corporation Broadband, low power FM/FSK transceiver for wireless communications systems
JPH11513870A (ja) * 1995-10-23 1999-11-24 モーメンタム・マイクロシステムズ・インコーポレーテッド ワイヤレス通信システムのための広帯域で低電力のｆｍ／ｆｓｋ送受信システム
US5684795A (en) * 1996-01-30 1997-11-04 Motorola, Inc. Method and apparatus for controlling a fractional-N synthesizer in a time division multiple access system
US6839548B1 (en) * 1996-03-01 2005-01-04 International Business Machines Corporation Radio transmitter
JPH1098409A (ja) * 1996-09-20 1998-04-14 Matsushita Electric Ind Co Ltd 無線回路
US5825213A (en) * 1996-12-16 1998-10-20 Motorola, Inc. Method and apparatus for frequency synthesis
US6094569A (en) * 1997-08-12 2000-07-25 U.S. Philips Corporation Multichannel radio device, a radio communication system, and a fractional division frequency synthesizer
SE510523C2 (sv) * 1997-09-11 1999-05-31 Ericsson Telefon Ab L M Radiokommunikationsenhet och radiotelefon innefattande radiokommunikationsenhet
US6035182A (en) * 1998-01-20 2000-03-07 Motorola, Inc. Single counter dual modulus frequency division apparatus
GB2335322B (en) * 1998-03-13 2002-04-24 Ericsson Telefon Ab L M Phase detector
EP0954105A1 (de) * 1998-04-29 1999-11-03 Siemens Aktiengesellschaft Phasenregelkreis mit gebrochenem Teilverhältinis
US6522868B1 (en) * 1998-11-04 2003-02-18 Lockheed Martin Corporation Method and apparatus for generating a communication band signal with reduced phase noise
JP2000341165A (ja) * 1999-05-25 2000-12-08 Matsushita Electric Ind Co Ltd 通信装置、通信方法および記録媒体
US6993106B1 (en) * 1999-08-11 2006-01-31 Broadcom Corporation Fast acquisition phase locked loop using a current DAC
US6526113B1 (en) * 1999-08-11 2003-02-25 Broadcom Corporation GM cell based control loops
EP1183785A1 (de) 2000-03-21 2002-03-06 Koninklijke Philips Electronics N.V. Kommunikationssystem mit frequenzmodulation und einem einzigen lokal-oszillator
US6636086B2 (en) * 2000-12-08 2003-10-21 Agilent Technologies, Inc. High performance microwave synthesizer using multiple-modulator fractional-N divider
US20040125239A1 (en) * 2002-12-26 2004-07-01 David Rahn Television tuner supporting channel hopping
US6856181B1 (en) * 2002-12-30 2005-02-15 Cypress Semiconductor Corporation Stability robustness using a non-integer order filter in a circuit
JP2007088657A (ja) * 2005-09-21 2007-04-05 Neuro Solution Corp Ｆｍトランスミッタ
KR100770906B1 (ko) * 2006-02-10 2007-10-26 삼성전자주식회사 비디오 패킷의 출력 비트레이트 조절 방법 및 장치

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7407717A (nl) * 1974-06-10 1975-12-12 Philips Nv Radiotelefoniesysteem.
JPS5712608Y2 (de) * 1975-10-21 1982-03-12
DE2809259C3 (de) * 1978-03-03 1980-09-04 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur Erzeugung von Trägerfrequenzen
GB2026268B (en) * 1978-07-22 1982-07-28 Racal Communcations Equipment Frequency synthesizers
JPS5599851A (en) * 1979-01-24 1980-07-30 Hitachi Ltd Mobile data reception system
GB2091960B (en) * 1981-01-27 1985-06-19 Int Standard Electric Corp High speed frequency synthesizer
WO1982003477A1 (en) * 1981-04-06 1982-10-14 Inc Motorola Frequency synthesized transceiver
US4549302A (en) * 1981-06-15 1985-10-22 Hayes Microcomputer Products, Inc. Modem with improved escape sequence mechanism to prevent escape in response to random occurrence of escape character in transmitted data
US4458214A (en) * 1981-09-28 1984-07-03 The Bendix Corporation Fast sampling phase locked loop frequency synthesizer
US4567603A (en) * 1983-06-09 1986-01-28 Motorola, Inc. FSK Modulator and method for NRZ data transmission utilizing PLL frequency synthesis
US4648060A (en) * 1984-07-30 1987-03-03 Hewlett-Packard Company Dual channel frequency synthesizer system
US4758802A (en) * 1985-02-21 1988-07-19 Plessey Overseas Limited Fractional N synthesizer
DE3712975A1 (de) * 1987-04-16 1988-11-03 Kernforschungsanlage Juelich Verfahren und schaltungsanordnung zur digitalen einstellung einer steuerfrequenz
US4816774A (en) * 1988-06-03 1989-03-28 Motorola, Inc. Frequency synthesizer with spur compensation

Also Published As

Publication number Publication date
JPH04507180A (ja) 1992-12-10
EP0479969B1 (de) 1997-01-22
BR9105707A (pt) 1992-05-19
AU7577891A (en) 1991-11-11
MX173959B (es) 1994-04-11
US5065408A (en) 1991-11-12
NZ237460A (en) 1993-04-28
EP0479969A1 (de) 1992-04-15
CA2048647C (en) 1995-05-09
EP0479969A4 (en) 1993-09-29
JP3082860B2 (ja) 2000-08-28
DE69124327D1 (de) 1997-03-06
WO1991016759A1 (en) 1991-10-31
AU631496B2 (en) 1992-11-26

Similar Documents

Publication Publication Date Title
ATE148278T1 (de) Synthesizer mit gebrochenem teilverhältnis für ein sprach-/daten-kommunikationssystem
DE3166939D1 (en) Phase-locked loop frequency synthesizer
DE3478780D1 (en) Frequency synthesisers
AU537439B2 (en) Synchronized frequency synthesizer with high speed lock
AU537712B2 (en) Frequency synthesizer with phase locked loop
ES2095932T3 (es) Sintetizador de frecuencia de circuito de sincronizacion de fase con limitador duro activado por un sintetizador digital directo.
EP0044154A3 (en) Phase-locked loop frequency synthesizer including compensated phase and frequency modulation
DE3785966D1 (de) Digitale, phasenverriegelte taktwiedergewinnungsschleife.
SE9303395L (sv) Fraktional-N-syntes med serierekombination utnyttjande flera ackumulatorer
SE9703294L (sv) Radiokommunikationsenhet och radiotelefon innefattande radiokommunikationsenhet
EP0438309B1 (de) Interpolierender Frequenzsynthetisierer mit Phasenregelkeis
DE3853563D1 (de) Digitale Frequenzsynthesierer.
SE9703944D0 (sv) Arrangement and method relating to radio communications
SE8604662L (sv) Anordning for frekvenssyntetisering
DE3470988D1 (en) Frequency synthesizer with functional division having a low phase jitter, and use of this synthesizer
JPS53130911A (en) Pll synthesizer
ITRM910930A0 (it) Sintetizzatore di frequenza pll insensibile a variazioni di parametri.
GB2196196B (en) Pll frequency synthesizer
GB2319371B (en) Frequency synthesizer with a phase-locked loop with multiple fractional division
JPS5247358A (en) Phase lock loop circuit
JPS52137958A (en) Digital pll improving proximity spurious
JPS5363959A (en) Pll frequency synthesizer
JPS5351950A (en) Pll frequency synthesizer
HK103388A (en) Synchronized frequency synthesizer with high speed lock
JPS5324220A (en) Pll synthesizer