DE69826244D1 - Programmierbarer kristalloszillator - Google Patents

Programmierbarer kristalloszillator

Info

Publication number
DE69826244D1
DE69826244D1 DE69826244T DE69826244T DE69826244D1 DE 69826244 D1 DE69826244 D1 DE 69826244D1 DE 69826244 T DE69826244 T DE 69826244T DE 69826244 T DE69826244 T DE 69826244T DE 69826244 D1 DE69826244 D1 DE 69826244D1
Authority
DE
Germany
Prior art keywords
crystal oscillator
programmable crystal
programmable
oscillator
crystal
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
DE69826244T
Other languages
English (en)
Other versions
DE69826244T2 (de
Inventor
W Fallisgaard
S Trefethen
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.)
Jet City Electronics Inc
Fox Enterprises Inc
Original Assignee
Jet City Electronics Inc
Fox Enterprises 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 Jet City Electronics Inc, Fox Enterprises Inc filed Critical Jet City Electronics Inc
Publication of DE69826244D1 publication Critical patent/DE69826244D1/de
Application granted granted Critical
Publication of DE69826244T2 publication Critical patent/DE69826244T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H03B5/366—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device and comprising means for varying the frequency by a variable voltage or current
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02—Varying the frequency of the oscillations by electronic means
    • H03B2201/025—Varying the frequency of the oscillations by electronic means the means being an electronic switch for switching in or out oscillator elements
    • H03B2201/0266—Varying the frequency of the oscillations by electronic means the means being an electronic switch for switching in or out oscillator elements the means comprising a transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J2200/00—Indexing scheme relating to tuning resonant circuits and selecting resonant circuits
    • H03J2200/10—Tuning of a resonator by means of digitally controlled capacitor bank
    • 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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
    • H03L7/0891—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump
    • H03L7/0895—Details of the current generators
    • H03L7/0898—Details of the current generators the source or sink current values being variable
DE69826244T 1997-02-05 1998-02-03 Programmierbarer kristalloszillator Expired - Lifetime DE69826244T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US795978 1997-02-05
US08/795,978 US5952890A (en) 1997-02-05 1997-02-05 Crystal oscillator programmable with frequency-defining parameters
PCT/US1998/001796 WO1998034338A1 (en) 1997-02-05 1998-02-03 Programmable crystal oscillator

Publications (2)

Publication Number Publication Date
DE69826244D1 true DE69826244D1 (de) 2004-10-21
DE69826244T2 DE69826244T2 (de) 2005-11-17

Family

ID=25166934

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69826244T Expired - Lifetime DE69826244T2 (de) 1997-02-05 1998-02-03 Programmierbarer kristalloszillator

Country Status (15)

Country Link
US (4) US5952890A (de)
EP (1) EP0958652B1 (de)
JP (1) JP2001510657A (de)
KR (1) KR20000070691A (de)
CN (1) CN1191672C (de)
AR (1) AR011624A1 (de)
AU (1) AU6050698A (de)
BR (1) BR9807549A (de)
CA (1) CA2278583A1 (de)
DE (1) DE69826244T2 (de)
HK (1) HK1026079A1 (de)
MY (1) MY118540A (de)
TW (1) TW404095B (de)
WO (1) WO1998034338A1 (de)
ZA (1) ZA98866B (de)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5952890A (en) * 1997-02-05 1999-09-14 Fox Enterprises, Inc. Crystal oscillator programmable with frequency-defining parameters
JP3829525B2 (ja) * 1998-04-02 2006-10-04 セイコーエプソン株式会社 容量アレイユニット及び発振回路
JP2000165905A (ja) * 1998-11-27 2000-06-16 Mitsubishi Electric Corp クロック発生回路
DE69811374T2 (de) * 1998-11-27 2003-12-18 Asulab Sa Hochfrequenztaktgenerator unter Verwendung eines Referenztaktgenerators
GB2349995A (en) * 1999-05-14 2000-11-15 Ericsson Telefon Ab L M An oscillator in which when the frequency is adjusted the level is also adjusted
JP2001094541A (ja) * 1999-09-27 2001-04-06 Nec Corp クロックリカバリ回路
US6876991B1 (en) 1999-11-08 2005-04-05 Collaborative Decision Platforms, Llc. System, method and computer program product for a collaborative decision platform
WO2001050656A2 (de) * 1999-12-30 2001-07-12 Siemens Aktiengesellschaft Schaltungsanordnung und verfahren einer referenztaktschnittstelle
US6388532B1 (en) * 2000-02-15 2002-05-14 Cardinal Components, Inc. System and method for programming oscillators
US6725391B2 (en) * 2000-03-02 2004-04-20 Texas Instruments Incorporated Clock modes for a debug port with on the fly clock switching
ATE254817T1 (de) * 2000-03-31 2003-12-15 Texas Instruments Inc Numerisch gesteuerter variabeler oszillator
US6431000B1 (en) * 2000-05-23 2002-08-13 General Electric Company Method and apparatus for high cycle fatigue life test
US6559730B1 (en) * 2000-07-05 2003-05-06 Cts Corporation Electronic switch with static control voltage for dynamically switching capacitance in a frequency-adjustable crystal oscillator
JP2002117285A (ja) * 2000-10-10 2002-04-19 Seiko Epson Corp 発振器の受注・製造システム、このシステムの制御方法、事業者サーバおよび制御データ書込装置
US6661295B2 (en) 2001-04-09 2003-12-09 Cts Corporation Controllable crystal oscillator
US6946919B2 (en) * 2002-01-14 2005-09-20 Cts Corporation Controllable crystal oscillator component
US7079611B2 (en) * 2001-06-14 2006-07-18 National Instruments Corporation System and method for synchronizing an asynchronous frequency for use in a digital system
EP1425757B1 (de) * 2001-08-13 2018-09-05 EM Microelectronic-Marin SA Programmierung einer elektronischen vorrichtung mit einem nichtflüchtigen speicher insbesondere zur einstellung der eigenschaften eines oszillators
US6700448B1 (en) 2002-08-30 2004-03-02 Cts Corporation High performance dual range oscillator module
US20050068118A1 (en) * 2003-09-30 2005-03-31 Silicon Laboratories, Inc. Reconfigurable terminal
US7064617B2 (en) * 2003-05-02 2006-06-20 Silicon Laboratories Inc. Method and apparatus for temperature compensation
US7288998B2 (en) * 2003-05-02 2007-10-30 Silicon Laboratories Inc. Voltage controlled clock synthesizer
US7295077B2 (en) * 2003-05-02 2007-11-13 Silicon Laboratories Inc. Multi-frequency clock synthesizer
US7436227B2 (en) * 2003-05-02 2008-10-14 Silicon Laboratories Inc. Dual loop architecture useful for a programmable clock source and clock multiplier applications
US7187241B2 (en) * 2003-05-02 2007-03-06 Silicon Laboratories Inc. Calibration of oscillator devices
AU2003262592A1 (en) * 2003-09-05 2005-03-29 Flextronics Design Finland Oy A method for steering an oscillator and an oscillator
TW200518484A (en) 2003-11-26 2005-06-01 Niigata Seimitsu Co Ltd AM/FM radio receiver and local oscillation circuit using the same
DE102004006311B4 (de) * 2004-02-09 2012-03-22 Infineon Technologies Ag Digital gesteuerte Oszillatorschaltung
JP4445780B2 (ja) * 2004-03-02 2010-04-07 Ｏｋｉセミコンダクタ株式会社 電圧レギュレータ
US7391329B2 (en) * 2004-04-13 2008-06-24 Impinj, Inc. Performance driven adjustment of RFID waveform shape
US7436308B2 (en) * 2004-04-13 2008-10-14 Impinj, Inc. Adjusting RFID waveform shape in view of signal from another reader
WO2005122397A2 (en) * 2004-06-08 2005-12-22 Koninklijke Philips Electronics N.V. Frequency tunable arrangement
WO2006001057A1 (ja) * 2004-06-25 2006-01-05 Spansion Llc 電圧制御回路および半導体装置
US7221233B2 (en) * 2004-09-24 2007-05-22 Cypress Semiconductor Corp. Nonvolatile programmable crystal oscillator circuit
US7327044B2 (en) 2005-01-21 2008-02-05 Fox Electronics Integrated circuit package encapsulating a hermetically sealed device
US7551016B2 (en) * 2005-02-04 2009-06-23 Atmel Corporation Programmable clock generator apparatus, systems, and methods
US20070004362A1 (en) * 2005-06-30 2007-01-04 Lawrence Der Methods and apparatus to generate small frequency changes
DE102005034369B4 (de) * 2005-07-22 2007-05-10 Siemens Audiologische Technik Gmbh Hörvorrichtung ohne Referenztakt-Bauteil
US7375597B2 (en) * 2005-08-01 2008-05-20 Marvell World Trade Ltd. Low-noise fine-frequency tuning
US7773479B1 (en) 2005-10-12 2010-08-10 Marvell International Ltd. Flexible optical write strategy
US20070193868A1 (en) * 2006-02-02 2007-08-23 Delphi Technologies, Inc. Multiplex signal system for vehicle steering column assembly
US7902933B1 (en) * 2006-03-29 2011-03-08 Cypress Semiconductor Corporation Oscillator circuit
US7830262B1 (en) 2006-04-25 2010-11-09 Impinj, Inc. Adjusting communication parameters while inventorying RFID tags
US7719928B2 (en) * 2006-06-08 2010-05-18 Seiko Epson Corporation Radio watch
US7808327B2 (en) * 2006-08-07 2010-10-05 Texas Instruments Incorporated Method and apparatus to provide digitally controlled crystal oscillators
US8008606B2 (en) * 2006-10-04 2011-08-30 T-Ink, Inc. Composite heating element with an integrated switch
US9161393B2 (en) * 2006-10-04 2015-10-13 T+Ink, Inc. Heated textiles and methods of making the same
WO2008047416A1 (fr) * 2006-10-18 2008-04-24 Spansion Llc Circuit de détection de tension
ES2761949T3 (es) 2006-11-01 2020-05-21 Ventana Med Syst Inc Haptenos, conjugados de haptenos, composiciones de los mismos y método para su preparación y uso
US7804371B2 (en) * 2006-12-31 2010-09-28 Sandisk Corporation Systems, modules, chips, circuits and methods with delay trim value updates on power-up
CA2687178C (en) 2007-05-23 2014-02-04 Ventana Medical Systems, Inc. Polymeric carriers for immunohistochemistry and in situ hybridization
US7482888B1 (en) * 2007-07-12 2009-01-27 Zerog Wireless, Inc. Fast startup resonant element oscillator
JP4625867B2 (ja) * 2007-07-23 2011-02-02 パナソニック株式会社 デジタルｐｌｌ装置
US20090224843A1 (en) * 2008-03-10 2009-09-10 Catalyst Semiconductor, Inc. Programmable Crystal Oscillator
DK2300799T3 (en) 2008-06-05 2015-12-14 Ventana Med Syst Inc Process for the histo chemical processing and use of a composition for histo chemical processing
JP5616957B2 (ja) * 2010-03-26 2014-10-29 シチズンホールディングス株式会社 電波時計
CN103904999A (zh) * 2012-12-29 2014-07-02 鸿富锦精密工业（深圳）有限公司 晶振频率调节装置
JP2014236466A (ja) * 2013-06-05 2014-12-15 日本電波工業株式会社 デュアルモード水晶発振器
US9257992B2 (en) * 2013-06-10 2016-02-09 Mstar Semiconductor, Inc. Communication device and control method thereof
JP2014241471A (ja) * 2013-06-11 2014-12-25 セイコーエプソン株式会社 信号発生回路、信号発生装置、信号発生装置の製造方法、電子機器、および移動体
CN103646225B (zh) * 2013-12-03 2017-01-11 北京中电华大电子设计有限责任公司 一种用于超高频射频识别标签反向通信速率的方法和电路
US9294103B2 (en) * 2014-02-14 2016-03-22 Apple Inc. Pre-program of clock generation circuit for faster lock coming out of reset
US9515603B2 (en) * 2014-10-14 2016-12-06 Cypress Semiconductor Corporation Crystal oscillator start-up circuit
US9520888B1 (en) * 2015-07-24 2016-12-13 Cypress Semiconductor Corporation Integrated circuit device with on-board calibration of signal generator circuits, and related methods
US9727077B2 (en) * 2015-10-08 2017-08-08 Arista Networks, Inc. System for reducing peak electromagnetic interference in a network device
CN108494398A (zh) * 2018-03-30 2018-09-04 广东圣大电子有限公司 一种x波段超低相位噪声频率源的设计方法及雷达频率源
CN109450378A (zh) * 2018-11-01 2019-03-08 郑州云海信息技术有限公司 一种晶振电路和时钟信号生成方法
US11038426B2 (en) 2019-09-19 2021-06-15 National Instruments Corporation Multi-phase noise cancelled adjustable switched mode programmable load
US11050402B2 (en) 2019-09-19 2021-06-29 National Instruments Corporation Electronically adjustable inductor circuit

Family Cites Families (116)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964714A (en) * 1959-04-02 1960-12-13 Jakubowics Edward Automatic frequency control system
US3644683A (en) 1969-05-07 1972-02-22 Edward H Braun Process and apparatus for marking and editing of elongated record carriers
US3657661A (en) * 1970-06-16 1972-04-18 Itt Fm demodulator system
US3842347A (en) 1973-07-03 1974-10-15 Gardner Denver Co Rate measurement circuit
US3916307A (en) * 1974-02-14 1975-10-28 Hekimian Laboratories Inc Time jitter meter
DE2513948C3 (de) * 1975-03-29 1981-12-17 Wandel & Goltermann Gmbh & Co, 7412 Eningen Stufig einstellbarer Frequenzgenerator mit einer phasengerasteten Regelschleife
US4093873A (en) 1976-10-28 1978-06-06 Intel Corporation Compensating digital counter for quartz crystal oscillator
US4211975A (en) * 1978-04-04 1980-07-08 Anritsu Electric Company, Limited Local signal generation arrangement
US4320357A (en) * 1978-11-13 1982-03-16 Wulfsberg Paul G VHF-FM Frequency synthesizer
US4343219A (en) * 1980-06-24 1982-08-10 Baldwin Piano & Organ Company Delay line oscillator
US4689740A (en) 1980-10-31 1987-08-25 U.S. Philips Corporation Two-wire bus-system comprising a clock wire and a data wire for interconnecting a number of stations
FR2495350A1 (fr) * 1980-12-03 1982-06-04 Lazare Rene Testeur specifique a modules, automatise et portable
US4590941A (en) * 1981-03-02 1986-05-27 Cordis Corporation Cardiac pacer with improved battery system, output circuitry, and emergency operation
US4468636A (en) * 1981-08-03 1984-08-28 National Semiconductor Corporation Low temperature coefficient wide band-width voltage controlled oscillator
US4454483A (en) 1982-03-25 1984-06-12 Cubic Corporation Temperature compensation of an oscillator by fractional cycle synthesis
US4459566A (en) * 1982-05-28 1984-07-10 General Electric Company Voltage controlled oscillator using a voltage tunable filter with feedback
US4486846A (en) * 1982-06-28 1984-12-04 Motorola Inc. Numerically controlled oscillator using quadrant replication and function decomposition
GB8329511D0 (en) * 1983-11-04 1983-12-07 Inmos Ltd Timing apparatus
US4567359A (en) 1984-05-24 1986-01-28 Lockwood Lawrence B Automatic information, goods and services dispensing system
IT1185568B (it) * 1985-05-17 1987-11-12 Face Standard Ind Dispositivo circuitale per agevolare la canalizzazione in un sintetizzatore di frequenza
US4694327A (en) * 1986-03-28 1987-09-15 Rca Corporation Digital phase locked loop stabilization circuitry using a secondary digital phase locked loop
US5099422A (en) 1986-04-10 1992-03-24 Datavision Technologies Corporation (Formerly Excnet Corporation) Compiling system and method of producing individually customized recording media
EP0278140A1 (de) * 1987-02-12 1988-08-17 Hewlett-Packard Limited Taktsignalgenerator
US4807108B1 (en) 1987-08-10 1995-03-28 Bell Telephone Labor Inc Product realization method
US4870591A (en) 1987-08-24 1989-09-26 International Business Machines Corp. System for ensuring device compatibility
US4816700A (en) 1987-12-16 1989-03-28 Intel Corporation Two-phase non-overlapping clock generator
US4899117A (en) 1987-12-24 1990-02-06 The United States Of America As Represented By The Secretary Of The Army High accuracy frequency standard and clock system
US5349544A (en) * 1988-06-15 1994-09-20 Advanced Micro Devices, Inc. Programmable system synchronizer
US4984155A (en) * 1988-08-29 1991-01-08 Square D Company Order entry system having catalog assistance
US5237699A (en) 1988-08-31 1993-08-17 Dallas Semiconductor Corp. Nonvolatile microprocessor with predetermined state on power-down
US4882549A (en) 1988-11-16 1989-11-21 Zvi Galani Center offset microwave frequency synthesizer
US5065450A (en) 1989-03-21 1991-11-12 Tft, Inc. Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system
JP2790311B2 (ja) * 1989-04-28 1998-08-27 富士通株式会社 半導体集積回路
DE3920008A1 (de) * 1989-06-20 1991-01-10 Philips Patentverwaltung Phasenregelkreis
WO1991001850A1 (fr) * 1989-08-10 1991-02-21 Fujitsu Limited Systeme de commande de procede de fabrication
US4980653A (en) 1989-09-05 1990-12-25 Motorola, Inc. Phase locked loop
JP3019340B2 (ja) 1989-12-05 2000-03-13 セイコーエプソン株式会社 可変容量装置
US5036230A (en) 1990-03-01 1991-07-30 Intel Corporation CMOS clock-phase synthesizer
US5036216A (en) 1990-03-08 1991-07-30 Integrated Circuit Systems, Inc. Video dot clock generator
US5216595A (en) * 1990-03-20 1993-06-01 Ncr Corporation System and method for integration of lottery terminals into point of sale systems
US5150079A (en) * 1990-03-27 1992-09-22 Dallas Semiconductor Corporation Two-mode oscillator
JPH03297223A (ja) * 1990-04-16 1991-12-27 Matsushita Electric Ind Co Ltd 周波数発生装置
JPH06502264A (ja) 1990-10-12 1994-03-10 インテル・コーポレーション 動的に切替え自在な多周波数クロック発生器
US5063358A (en) * 1990-11-01 1991-11-05 Westinghouse Electric Corp. Ultra low noise crystal oscillator circuit
IL96351A (en) 1990-11-14 1994-01-25 Zuta Marc Frequency synthesizer having microcomputer supplying analog and digital control signals to vco
US5136180A (en) 1991-02-12 1992-08-04 Vlsi Technology, Inc. Variable frequency clock for a computer system
US5579231A (en) * 1991-03-19 1996-11-26 Fujitsu Limited Management system for manufacture
EP0510241A3 (en) 1991-04-22 1993-01-13 Acer Incorporated Upgradeable/downgradeable computer
JP2745869B2 (ja) 1991-07-11 1998-04-28 日本電気株式会社 可変クロック分周回路
US5295079A (en) 1991-07-18 1994-03-15 National Semiconductor Corporation Digital testing techniques for very high frequency phase-locked loops
JP2742155B2 (ja) * 1991-07-19 1998-04-22 富士通株式会社 リングオシレータ
US5142247A (en) * 1991-08-06 1992-08-25 Compaq Computer Corporation Multiple frequency phase-locked loop clock generator with stable transitions between frequencies
US5144254A (en) 1991-09-30 1992-09-01 Wilke William G Dual synthesizer including programmable counters which are controlled by means of calculated input controls
US5319324A (en) 1991-10-02 1994-06-07 Matsushita Electric Industrial Co., Ltd. Method of direct bonding of crystals and crystal devices
US5465076A (en) * 1991-10-04 1995-11-07 Nippondenso Co., Ltd. Programmable delay line programmable delay circuit and digital controlled oscillator
US5177771A (en) 1991-12-05 1993-01-05 Glassburn Tim R High resolution symmetrical divider circuit
US5307381A (en) 1991-12-27 1994-04-26 Intel Corporation Skew-free clock signal distribution network in a microprocessor
DE4200816A1 (de) * 1992-01-15 1993-07-22 Bosch Gmbh Robert Frequenz- und phasenmodulator fuer digitale modulatoren bzw. digitale uebertragung, insbesondere fuer funkuebertragung
US5444405A (en) 1992-03-02 1995-08-22 Seiko Epson Corporation Clock generator with programmable non-overlapping clock edge capability
US5369311A (en) 1992-03-06 1994-11-29 Intel Corporation Clock generator control circuit
US5233314A (en) 1992-03-27 1993-08-03 Cyrix Corporation Integrated charge-pump phase-locked loop circuit
US5412349A (en) 1992-03-31 1995-05-02 Intel Corporation PLL clock generator integrated with microprocessor
US5359232A (en) 1992-05-08 1994-10-25 Cyrix Corporation Clock multiplication circuit and method
US5336939A (en) 1992-05-08 1994-08-09 Cyrix Corporation Stable internal clock generation for an integrated circuit
US5446867A (en) 1992-05-29 1995-08-29 Intel Corporation Microprocessor PLL clock circuit with selectable delayed feedback
US5289138A (en) 1992-07-30 1994-02-22 Amdahl Corportion Apparatus for synchronously selecting different oscillators as system clock source
US5256994A (en) 1992-09-21 1993-10-26 Intel Corporation Programmable secondary clock generator
US5302920A (en) * 1992-10-13 1994-04-12 Ncr Corporation Controllable multi-phase ring oscillators with variable current sources and capacitances
US5559502A (en) 1993-01-14 1996-09-24 Schutte; Herman Two-wire bus system comprising a clock wire and a data wire for interconnecting a number of stations and allowing both long-format and short-format slave addresses
US5323125A (en) * 1993-03-15 1994-06-21 Motorola, Inc. Frequency agile method for transmitting multi-level data
US5537582A (en) 1993-05-21 1996-07-16 Draeger; Jeffrey S. Bus interface circuitry for synchronizing central processors running at multiple clock frequencies to other computer system circuitry
TW236052B (en) * 1993-08-03 1994-12-11 Motorola Inc A phase locked loop and method of operation
US5523705A (en) 1993-08-24 1996-06-04 Intel Corporation Apparatus and method for selecting and buffering inputs of programmable logic devices
US5446420A (en) * 1993-08-25 1995-08-29 Motorola, Inc. Method and apparatus for reducing jitter and improving testability of an oscillator
US5457433A (en) * 1993-08-25 1995-10-10 Motorola, Inc. Low-power inverter for crystal oscillator buffer or the like
US5357204A (en) 1993-09-01 1994-10-18 Intel Corporation One-shot clock generator circuit
US5371772A (en) 1993-09-14 1994-12-06 Intel Corporation Programmable divider exhibiting a 50/50 duty cycle
US5608770A (en) * 1993-09-21 1997-03-04 Ricoh Company, Ltd. Frequency converter outputting a clock signal having a stable and accurate frequency
US5497126A (en) 1993-11-09 1996-03-05 Motorola, Inc. Phase synchronization circuit and method therefor for a phase locked loop
US5548252A (en) * 1993-12-07 1996-08-20 Kabushiki Kaisha Meidensha Digital temperature compensated crystal oscillator
US5638542A (en) 1993-12-29 1997-06-10 Intel Corporation Low power non-overlap two phase complementary clock unit using synchronous delay line
US5535377A (en) 1994-01-31 1996-07-09 Dell Usa, L.P. Method and apparatus for low latency synchronization of signals having different clock speeds
US5636346A (en) * 1994-05-09 1997-06-03 The Electronic Address, Inc. Method and system for selectively targeting advertisements and programming
US5451912A (en) * 1994-06-13 1995-09-19 Cypress Semiconductor Corp. Methods and apparatus for a programmable frequency generator that requires no dedicated programming pins
TW282525B (de) 1994-06-17 1996-08-01 Intel Corp
US5570066A (en) * 1994-08-30 1996-10-29 Motorola, Inc. Method of programming a frequency synthesizer
US5537068A (en) 1994-09-06 1996-07-16 Intel Corporation Differential delay line clock generator
JP2734380B2 (ja) * 1994-09-06 1998-03-30 日本電気株式会社 電圧制御発振器およびフェーズロックドループ回路
US5552993A (en) 1994-11-07 1996-09-03 The United States Of America As Represented By The Secretary Of The Navy Audio information apparatus for providing position information
JP3297223B2 (ja) 1994-11-10 2002-07-02 東芝テック株式会社 電気掃除機
EP0746820B1 (de) 1994-12-02 2001-09-26 Koninklijke Philips Electronics N.V. Schaltung zur Kopplung von Kommunikations-Bussen
JP3467880B2 (ja) 1994-12-26 2003-11-17 ソニー株式会社 クロック信号発生装置
US5699259A (en) 1995-03-01 1997-12-16 Siemens Business Communication Systems, Inc. Inventory control procedure
US5532636A (en) 1995-03-10 1996-07-02 Intel Corporation Source-switched charge pump circuit
US5638016A (en) 1995-04-18 1997-06-10 Cyrix Corporation Adjustable duty cycle clock generator
US5550499A (en) 1995-04-18 1996-08-27 Cyrix Corporation Single delay line adjustable duty cycle clock generator
US5687202A (en) 1995-04-24 1997-11-11 Cyrix Corporation Programmable phase shift clock generator
EP0744836A3 (de) * 1995-05-25 1998-03-25 Kabushiki Kaisha Meidensha Temperaturkompensierter Kristalloszillator
US5818254A (en) 1995-06-02 1998-10-06 Advanced Micro Devices, Inc. Multi-tiered hierarchical high speed switch matrix structure for very high-density complex programmable logic devices
US5555025A (en) 1995-06-07 1996-09-10 Intel Corporation Apparatus and method for performing asynchronous multi-standard VBI data extraction
US5696949A (en) 1995-06-15 1997-12-09 Intel Corporation System for PCI slots expansion using asynchronous PCI-to-PCI bridge with clock generator for providing clock signal to the expansion mother board and expansion side of bridge
US5729158A (en) 1995-07-07 1998-03-17 Sun Microsystems, Inc. Parametric tuning of an integrated circuit after fabrication
US5563553A (en) 1995-08-15 1996-10-08 Sigmatel Inc. Method and apparatus for a controlled oscillation that may be used in a phase locked loop
US5684434A (en) 1995-10-30 1997-11-04 Cypress Semiconductor Erasable and programmable single chip clock generator
US5706484A (en) 1995-12-20 1998-01-06 Intel Corporation Method for eliminating transition direction sensitive timing skews in a source synchronous design
IL117058A (en) * 1996-02-06 2000-06-29 Israel State Millimeter-wave (MMW) synthesizer with FSK modulation transmitter
US5719510A (en) 1996-03-27 1998-02-17 Intel Corporation Software configurable digital clock generator
US5760656A (en) 1996-12-17 1998-06-02 Motorola Inc. Temperature compensation circuit for a crystal oscillator and associated circuitry
US5952890A (en) * 1997-02-05 1999-09-14 Fox Enterprises, Inc. Crystal oscillator programmable with frequency-defining parameters
US5960405A (en) 1997-02-05 1999-09-28 Fox Enterprises, Inc. Worldwide marketing logistics network including strategically located centers for frequency programming crystal oscillators to customer specification
US6104257A (en) 1997-12-22 2000-08-15 Cypress Semiconductor Corp. Crystal oscillator with eprom-controlled frequency trim
US5969949A (en) * 1998-03-31 1999-10-19 Sun Microsystems, Inc. Interfitting heat sink and heat spreader slug
US6236980B1 (en) 1998-04-09 2001-05-22 John P Reese Magazine, online, and broadcast summary recommendation reporting system to aid in decision making
US6188255B1 (en) 1998-09-28 2001-02-13 Cypress Semiconductor Corp. Configurable clock generator
US6191660B1 (en) 1999-03-24 2001-02-20 Cypress Semiconductor Corp. Programmable oscillator scheme
KR100399356B1 (ko) * 2001-04-11 2003-09-26 삼성전자주식회사 듀얼 게이트를 가지는 씨모스형 반도체 장치 형성 방법

Also Published As

Publication number Publication date
US6664860B2 (en) 2003-12-16
CN1191672C (zh) 2005-03-02
ZA98866B (en) 1998-08-05
US20010017573A1 (en) 2001-08-30
WO1998034338A1 (en) 1998-08-06
EP0958652A1 (de) 1999-11-24
US20030122630A1 (en) 2003-07-03
US5952890A (en) 1999-09-14
EP0958652B1 (de) 2004-09-15
BR9807549A (pt) 2000-02-15
AU6050698A (en) 1998-08-25
MY118540A (en) 2004-12-31
KR20000070691A (ko) 2000-11-25
HK1026079A1 (en) 2000-12-01
TW404095B (en) 2000-09-01
AR011624A1 (es) 2000-08-30
US6188290B1 (en) 2001-02-13
DE69826244T2 (de) 2005-11-17
CN1246219A (zh) 2000-03-01
US6954113B2 (en) 2005-10-11
CA2278583A1 (en) 1998-08-06
JP2001510657A (ja) 2001-07-31

Similar Documents

Publication Publication Date Title
DE69826244D1 (de) Programmierbarer kristalloszillator
DE69706009D1 (de) Oszillator
DE69823289D1 (de) Temperaturunabhängiger Oszillator
NO974663D0 (no) Programmerbar elektronisk tidtagerkrets
DE69709621T2 (de) Oszillatorschaltung
DE59810008D1 (de) Ringoszillator
DE69730085D1 (de) Oszillator
ID22589A (id) Piranti tampilan yang dapat diprogram
FI973248A (fi) Askelohjattu taajuussyntetisaattori
DE69815591D1 (de) Frequenzsynthetisierer
DE69520459D1 (de) Injektionssynchronisierter Oszillator
DE69820586D1 (de) Oszillator
NO20010782L (no) Krystalloscillator
DE69911281D1 (de) Oszillator
DE69803342D1 (de) Spannungsgesteuerter Oszillator
DE69800559T2 (de) Ferrielektrische Flüssigkristallverbindung
DE69823908D1 (de) Einkristallziehvorrichtung
DE69804287D1 (de) Programmierbare Teilerschaltung
DE69821435D1 (de) Oszillatorbaugruppe
DE59802788D1 (de) Oszillator
DE59503730D1 (de) Steuerbarer oszillator
DE69920662D1 (de) Sibe-kristall
DE19781524T1 (de) Oszillator
DE69800956D1 (de) Zeitpunktregler
DE29809632U1 (de) Frequenzsynthesizer

Legal Events

Date Code Title Description
8364 No opposition during term of opposition