EG19498A - Broad band frequency synthesizer for quick frequency retuning - Google Patents

Broad band frequency synthesizer for quick frequency retuning

Info

Publication number
EG19498A
EG19498A EG9292A EG9292A EG19498A EG 19498 A EG19498 A EG 19498A EG 9292 A EG9292 A EG 9292A EG 9292 A EG9292 A EG 9292A EG 19498 A EG19498 A EG 19498A
Authority
EG
Egypt
Prior art keywords
broad band
quick
retuning
frequency
synthesizer
Prior art date
Application number
EG9292A
Other languages
English (en)
Inventor
Peter Magnus Petersson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of EG19498A publication Critical patent/EG19498A/xx

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
    • H03L7/183—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 fixed numbers or the frequency divider dividing by a fixed number
EG9292A 1991-02-20 1992-02-15 Broad band frequency synthesizer for quick frequency retuning EG19498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/658,038 US5140284A (en) 1991-02-20 1991-02-20 Broad band frequency synthesizer for quick frequency retuning

Publications (1)

Publication Number Publication Date
EG19498A true EG19498A (en) 1995-09-30

Family

ID=24639660

Family Applications (1)

Application Number Title Priority Date Filing Date
EG9292A EG19498A (en) 1991-02-20 1992-02-15 Broad band frequency synthesizer for quick frequency retuning

Country Status (5)

Country Link
US (1) US5140284A (no)
EP (1) EP0500516B1 (no)
EG (1) EG19498A (no)
FI (1) FI107480B (no)
NO (1) NO300990B1 (no)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI89432C (fi) * 1991-06-26 1993-09-27 Nokia Mobile Phones Ltd Genering av en klockfrekvens i ett smart card graenssnitt
FR2681994B1 (fr) * 1991-09-26 1994-09-30 Alcatel Telspace Dispositif de transmission numerique comportant un recepteur a demodulation coherente realisee directement en hyperfrequence.
JP3241079B2 (ja) * 1992-02-24 2001-12-25 株式会社日立製作所 ディジタル位相同期回路
US5371480A (en) * 1992-12-04 1994-12-06 Telefonaktiebolaget L M Ericsson Step controlled signal generator
FI95520C (fi) * 1992-12-29 1996-02-12 Nokia Telecommunications Oy Menetelmä signaalin vaiheen lukitsemiseksi adaptoituvasti referenssisignaalin vaiheeseen ja referenssisignaalin taajuuteen adaptoituva vaihelukko
US5585754A (en) * 1993-04-02 1996-12-17 Nec Corporation Integrated digital circuit
DE4324527A1 (de) * 1993-07-21 1995-01-26 Siemens Ag Anordnung zur Frequenzaufbereitung für zwei Frequenzbänder
CA2130871C (en) * 1993-11-05 1999-09-28 John M. Alder Method and apparatus for a phase-locked loop circuit with holdover mode
US5457428A (en) * 1993-12-09 1995-10-10 At&T Corp. Method and apparatus for the reduction of time interval error in a phase locked loop circuit
JP3256422B2 (ja) * 1995-10-23 2002-02-12 日本電気株式会社 周波数シンセサイザ
US5703537A (en) * 1996-07-03 1997-12-30 Microclock Incorporated Phase-locked loop clock circuit for generation of audio sampling clock signals from video reference signals
US6417703B1 (en) * 1996-09-25 2002-07-09 Anritsu Company Frequency synthesizer using a ratio sum topology
EP0903860A1 (en) * 1997-09-17 1999-03-24 Matsushita Electric Industrial Co., Ltd. PLL frequency synthesizer
US6154508A (en) * 1998-03-23 2000-11-28 Vlsi Technology, Inc. Method and system for rapidly achieving synchronization between digital communications systems
US6084448A (en) * 1998-06-17 2000-07-04 Ericsson Inc. Adaptive divider control for a phase lock loop circuit
US6140882A (en) * 1998-11-23 2000-10-31 Tropian, Inc. Phase lock loop enabling smooth loop bandwidth switching
NZ338098A (en) * 1999-09-29 2001-06-29 Tait Electronics Ltd Frequency synthesizer with phase locked loop (PLL) with two frequency dividers
TW496975B (en) * 2001-03-02 2002-08-01 Ind Tech Res Inst Planar lightwave circuit interleaver
JP3928519B2 (ja) * 2002-08-21 2007-06-13 ソニー株式会社 ディジタル信号伝送システムおよび方法、並びに受信装置および方法
JP4546716B2 (ja) * 2003-11-10 2010-09-15 シャープ株式会社 Ｐｌｌクロック信号生成回路
US7242230B2 (en) * 2004-02-25 2007-07-10 Analog Devices, Inc. Microprocessor with power saving clock
US7747237B2 (en) * 2004-04-09 2010-06-29 Skyworks Solutions, Inc. High agility frequency synthesizer phase-locked loop
KR100940622B1 (ko) * 2007-06-25 2010-02-05 주식회사 동부하이텍 주파수 합성기
US20100150288A1 (en) * 2008-12-17 2010-06-17 Miao Zhu Synchronization of Low Noise Local Oscillator using Network Connection
KR101297413B1 (ko) * 2012-02-24 2013-08-19 고려대학교 산학협력단 적응형 클럭 생성 장치 및 방법

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107612A (en) * 1976-05-05 1978-08-15 Frederick Electronics Corporation Phase locked loop exciter generator for high frequency transmitter
US4034310A (en) * 1977-01-05 1977-07-05 Coe Thomas F Phase-locked loop oscillator
JPS53130911A (en) * 1977-04-20 1978-11-15 Matsushita Electric Ind Co Ltd Pll synthesizer
GB2024546B (en) * 1978-05-26 1982-12-22 Racal Group Services Ltd Frequency synthesisers
DD140826A1 (de) * 1978-12-15 1980-03-26 Uwe Buehn Frequenzsyntheseanordnung
FR2510287B1 (fr) * 1981-07-24 1985-01-04 Thomson Csf Synthetiseur de frequence a large bande relative
US4528521A (en) * 1984-02-09 1985-07-09 At&T Information Systems Inc. Precision control frequency synthesizer having an unstable, variable frequency input signal
US4668922A (en) * 1985-07-17 1987-05-26 Hughes Aircraft Company Fast phase-lock frequency synthesizer
CA1282464C (en) * 1985-10-23 1991-04-02 Masanori Ienaka Phase-locked oscillator
JPS63238714A (ja) * 1986-11-26 1988-10-04 Hitachi Ltd クロック供給システム
EP0278140A1 (en) * 1987-02-12 1988-08-17 Hewlett-Packard Limited Clock signal generation
US4868513A (en) * 1987-09-11 1989-09-19 Amdahl Corporation Phase-locked loop with redundant reference input
US4926141A (en) * 1989-05-01 1990-05-15 Motorola, Inc. Frequency synthesizer with improved automatic control of loop bandwidth selection
US4901033A (en) * 1989-05-01 1990-02-13 Motorola, Inc. Frequency synthesizer with dynamically programmable frequency range of selected loop bandwith

Also Published As

Publication number Publication date
NO920639L (no) 1992-08-21
FI920715A0 (fi) 1992-02-19
FI920715A (fi) 1992-08-21
US5140284A (en) 1992-08-18
NO300990B1 (no) 1997-08-25
EP0500516A3 (en) 1993-04-21
EP0500516A2 (en) 1992-08-26
NO920639D0 (no) 1992-02-18
EP0500516B1 (en) 1999-10-06
FI107480B (fi) 2001-08-15

Similar Documents

Publication Publication Date Title
EG19498A (en) Broad band frequency synthesizer for quick frequency retuning
EP0567033A3 (en) Frequency synthesizer
TW333382U (en) PLL frequency synthesizer
IL96351A0 (en) Digital frequency synthesizer
GB2278511B (en) Frequency synthesizer for generating two different frequencies
EP0758468A4 (en) DIGITAL FREQUENCY SYNTHETIZERS
EP0412491A3 (en) Frequency synthesizer
GB2228840B (en) Frequency synthesisers
IL89833A (en) Frequency synthesizer
EP0481804A3 (en) Pll frequency synthesizer
GB2274949B (en) Radio frequency apparatus
EP0535800A3 (en) General-purpose synthesizer for a radio apparatus
EP0755091A4 (en) ANTENNA FOR TWO FREQUENCY BANDS
EP0414445A3 (en) Direct digital frequency synthesizer
EP0440449A3 (en) Fast-switching frequency synthesizer
GB2271480B (en) Pll frequency synthesizer circuit
GB9616062D0 (en) Frequency synthesizer
EP0353399A3 (en) Digitally adjustable frequency-dividing arrangement, especially for frequency synthesizers
EP0595013A3 (en) Digital frequency synthesizer.
GB2236922B (en) Frequency synthesisers
GB2301499B (en) Adjustable frequency synthesizer
GB2263206B (en) Frequency synthesizer
GB2267623B (en) Radio frequency ranging apparatus
CA2046975A1 (en) Dual band frequency reuse antenna
GB9525281D0 (en) Frequency synthesizer