DE69414989T2 - Digital phasenmodulierter Taktgeber ermöglichend reduzierte RF Interferenz - Google Patents

Digital phasenmodulierter Taktgeber ermöglichend reduzierte RF Interferenz

Info

Publication number
DE69414989T2
DE69414989T2 DE69414989T DE69414989T DE69414989T2 DE 69414989 T2 DE69414989 T2 DE 69414989T2 DE 69414989 T DE69414989 T DE 69414989T DE 69414989 T DE69414989 T DE 69414989T DE 69414989 T2 DE69414989 T2 DE 69414989T2
Authority
DE
Germany
Prior art keywords
interference
clock generator
digital phase
modulated clock
enables reduced
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 - Fee Related
Application number
DE69414989T
Other languages
English (en)
Other versions
DE69414989D1 (de
Inventor
Robert Rust
Phillip R Luque
Derek L Knee
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.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of DE69414989D1 publication Critical patent/DE69414989D1/de
Publication of DE69414989T2 publication Critical patent/DE69414989T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/06—Frequency or rate modulation, i.e. PFM or PRM
DE69414989T 1993-12-20 1994-07-14 Digital phasenmodulierter Taktgeber ermöglichend reduzierte RF Interferenz Expired - Fee Related DE69414989T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/171,314 US5442664A (en) 1993-12-20 1993-12-20 Digitally phase modulated clock inhibiting reduced RF emissions

Publications (2)

Publication Number Publication Date
DE69414989D1 DE69414989D1 (de) 1999-01-14
DE69414989T2 true DE69414989T2 (de) 1999-06-24

Family

ID=22623295

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69414989T Expired - Fee Related DE69414989T2 (de) 1993-12-20 1994-07-14 Digital phasenmodulierter Taktgeber ermöglichend reduzierte RF Interferenz

Country Status (4)

Country Link
US (1) US5442664A (de)
EP (1) EP0660516B1 (de)
JP (1) JPH07202652A (de)
DE (1) DE69414989T2 (de)

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* Cited by examiner, † Cited by third party
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JP3130425B2 (ja) * 1994-03-18 2001-01-31 富士通株式会社 ジッタ抑圧回路
DE4442403C2 (de) * 1994-11-30 1997-01-23 Itt Ind Gmbh Deutsche Taktgenerator zur Erzeugung eines störstrahlarmen Systemtaktes
US5903605A (en) * 1995-03-30 1999-05-11 Intel Corporation Jitter detection method and apparatus
JP3304683B2 (ja) * 1995-05-02 2002-07-22 富士通株式会社 無線装置
US5844908A (en) * 1996-11-14 1998-12-01 Alcatel Network Systems, Inc. Digital delay system and method for digital cross connect telecommunication systems
DE19802065B4 (de) * 1998-01-21 2014-04-30 Continental Automotive Gmbh Taktmodulator für ein Digitalsystem
US6661863B1 (en) * 1999-04-16 2003-12-09 Infineon Technologies North America Corp. Phase mixer
DE19933115A1 (de) * 1999-07-19 2001-01-25 Mannesmann Vdo Ag Verfahren zur Modulation eines Grundtaktes für digitale Schaltungen und Taktmodulator zur Ausführung des Verfahrens
DE19933117B4 (de) * 1999-07-19 2011-07-28 Continental Automotive GmbH, 30165 Verfahren zur Modulation eines Grundtaktes für digitale Schaltungen und Modulator zur Ausführung des Verfahrens
US6711694B1 (en) * 2000-02-03 2004-03-23 Telefonaktiebolaget Lm Ericsson(Publ) Apparatus and method for generating a modulated clock signal including harmonics that exhibit a known sideband configuration
JP4021710B2 (ja) * 2002-06-11 2007-12-12 沖電気工業株式会社 クロック変調回路
US7187705B1 (en) 2002-12-23 2007-03-06 Cypress Semiconductor Corporation Analog spread spectrum signal generation circuit
DE60327900D1 (de) * 2002-12-24 2009-07-16 Fujitsu Microelectronics Ltd Taktgenerator mit spektraler Dispersion
FR2853183B1 (fr) * 2003-03-27 2005-04-29 Valeo Electronique Sys Liaison Procede de modulation fsk sur la base d'une seule frequence de reference
DE602004009137T2 (de) * 2003-07-31 2008-06-19 Stmicroelectronics Pvt. Ltd. Digitaler Taktmodulator
US6947493B2 (en) * 2003-10-10 2005-09-20 Atmel Corporation Dual phase pulse modulation decoder circuit
US7283011B2 (en) * 2003-10-10 2007-10-16 Atmel Corporation Method for performing dual phase pulse modulation
US7103110B2 (en) * 2003-10-10 2006-09-05 Atmel Corporation Dual phase pulse modulation encoder circuit
US7135904B1 (en) * 2004-01-12 2006-11-14 Marvell Semiconductor Israel Ltd. Jitter producing circuitry and methods
US7079577B2 (en) * 2004-09-08 2006-07-18 Atmel Corporation Wide window decoder circuit for dual phase pulse modulation
JP4298688B2 (ja) 2005-09-15 2009-07-22 富士通マイクロエレクトロニクス株式会社 クロック発生回路及びクロック発生方法
US8327204B2 (en) * 2005-10-27 2012-12-04 Dft Microsystems, Inc. High-speed transceiver tester incorporating jitter injection
KR100856123B1 (ko) * 2006-03-20 2008-09-03 삼성전자주식회사 Ｅｍｉ 방출을 감소시킬 수 있는 데이터 처리장치와 그방법
JP5120612B2 (ja) * 2006-12-14 2013-01-16 セイコーエプソン株式会社 多値信号バス、多値入力インタフェース、情報処理装置及び多値信号バスの形成方法
US20080261326A1 (en) * 2007-04-23 2008-10-23 Christie Dudenhoefer Drop-on-demand manufacturing of diagnostic test strips
JP4982239B2 (ja) 2007-04-26 2012-07-25 ラピスセミコンダクタ株式会社 クロック周波数拡散装置
US7904776B2 (en) * 2008-01-30 2011-03-08 Advantest Corporation Jitter injection circuit, pattern generator, test apparatus, and electronic device
JP2011139365A (ja) * 2009-12-28 2011-07-14 Canon Inc パルスエッジ選択回路と、それを使ったパルス生成回路、サンプルホールド回路及び固体撮像装置
JP2013012917A (ja) * 2011-06-29 2013-01-17 Fujitsu Semiconductor Ltd クロック生成回路、クロック生成方法および半導体集積回路
JP5850975B2 (ja) * 2014-04-24 2016-02-03 キヤノン株式会社 パルス生成回路、サンプルホールド回路、固体撮像装置
KR101672497B1 (ko) * 2015-06-10 2016-11-03 에스케이텔레콤 주식회사 양자 암호키 분배시스템, 이에 적용되는 송신장치 및 송신장치의 동작 방법
JP2017054455A (ja) 2015-09-11 2017-03-16 株式会社東芝 クロック生成回路及び無線受信機

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US3633170A (en) * 1970-06-09 1972-01-04 Ibm Digital filter and threshold circuit
US4500912A (en) * 1982-08-04 1985-02-19 Rca Corporation FIR Chrominance bandpass sampled data filter with internal decimation
US4513427A (en) * 1982-08-30 1985-04-23 Xerox Corporation Data and clock recovery system for data communication controller
US4530107A (en) * 1982-09-16 1985-07-16 Ampex Corporation Shift register delay circuit
GB8703136D0 (en) * 1987-02-11 1987-03-18 Univ Cardiff Filtering electrical signals
US5022056A (en) * 1989-10-23 1991-06-04 National Semiconductor Corporation Method and structure for digital phase synchronization
EP0453582B1 (de) * 1990-03-23 1995-01-11 Deutsche ITT Industries GmbH Medianfilter

Also Published As

Publication number Publication date
US5442664A (en) 1995-08-15
EP0660516B1 (de) 1998-12-02
EP0660516A1 (de) 1995-06-28
JPH07202652A (ja) 1995-08-04
DE69414989D1 (de) 1999-01-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD CO. (N.D.GES.D.STAATES DELAWARE),

8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE

8339 Ceased/non-payment of the annual fee