CN104426504B - 扩频时钟产生电路、时钟转换电路、集成电路和图像读取装置 - Google Patents

扩频时钟产生电路、时钟转换电路、集成电路和图像读取装置 Download PDF

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Publication number
CN104426504B
CN104426504B CN201410398213.4A CN201410398213A CN104426504B CN 104426504 B CN104426504 B CN 104426504B CN 201410398213 A CN201410398213 A CN 201410398213A CN 104426504 B CN104426504 B CN 104426504B
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CN
China
Prior art keywords
spread spectrum
spectrum clock
circuit
unit
clock
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
CN201410398213.4A
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English (en)
Chinese (zh)
Other versions
CN104426504A (zh
Inventor
白井誉浩
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Canon Inc
Original Assignee
Canon Inc
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Publication date
Application filed by Canon Inc filed Critical Canon Inc
Publication of CN104426504A publication Critical patent/CN104426504A/zh
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Publication of CN104426504B publication Critical patent/CN104426504B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/08—Clock generators with changeable or programmable clock frequency
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/10—Distribution of clock signals, e.g. skew
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/617—Noise processing, e.g. detecting, correcting, reducing or removing noise for reducing electromagnetic interference, e.g. clocking noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
    • H04N25/7795—Circuitry for generating timing or clock signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Manipulation Of Pulses (AREA)
  • Facsimile Heads (AREA)
  • Image Input (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
CN201410398213.4A 2013-08-19 2014-08-14 扩频时钟产生电路、时钟转换电路、集成电路和图像读取装置 Expired - Fee Related CN104426504B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013169924A JP6152014B2 (ja) 2013-08-19 2013-08-19 スペクトラム拡散クロック生成回路、クロック乗せ換え回路、集積回路及び画像読み取り装置
JP2013-169924 2013-08-19

Publications (2)

Publication Number Publication Date
CN104426504A CN104426504A (zh) 2015-03-18
CN104426504B true CN104426504B (zh) 2017-03-01

Family

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CN201410398213.4A Expired - Fee Related CN104426504B (zh) 2013-08-19 2014-08-14 扩频时钟产生电路、时钟转换电路、集成电路和图像读取装置

Country Status (4)

Country Link
US (1) US9639114B2 (enExample)
EP (1) EP2840778B1 (enExample)
JP (1) JP6152014B2 (enExample)
CN (1) CN104426504B (enExample)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105634485A (zh) * 2015-12-22 2016-06-01 华为技术有限公司 扩频时钟产生装置和生成扩频时钟信号的方法
US10129166B2 (en) * 2016-06-21 2018-11-13 Intel Corporation Low latency re-timer
US10571953B2 (en) * 2017-07-05 2020-02-25 Intel Corporation Method and apparatus to utilize a digital-time-conversion (DTC) based clocking in computing systems
US12287717B2 (en) * 2018-06-06 2025-04-29 Canaan Creative Co., Ltd. Chip frequency modulation method and apparatus of computing device, hash board, computing device and storage medium
US11714127B2 (en) 2018-06-12 2023-08-01 International Business Machines Corporation On-chip spread spectrum characterization
US11146307B1 (en) * 2020-04-13 2021-10-12 International Business Machines Corporation Detecting distortion in spread spectrum signals
US11693446B2 (en) 2021-10-20 2023-07-04 International Business Machines Corporation On-chip spread spectrum synchronization between spread spectrum sources

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0655829A1 (en) * 1993-11-29 1995-05-31 Lexmark International, Inc. Spread spectrum clock generator and associated method
US6294936B1 (en) * 1998-09-28 2001-09-25 American Microsystems, Inc. Spread-spectrum modulation methods and circuit for clock generator phase-locked loop
CN101630951A (zh) * 2008-07-14 2010-01-20 瑞鼎科技股份有限公司 扩频时钟信号发生器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3013033B2 (ja) * 1997-02-13 2000-02-28 日本電気エンジニアリング株式会社 蓄積データ量監視回路
JP3722403B2 (ja) * 1999-09-22 2005-11-30 株式会社リコー 画像読取装置
JP4045454B2 (ja) * 2005-02-04 2008-02-13 セイコーエプソン株式会社 アナログフロントエンド回路及び電子機器
JP4104624B2 (ja) 2005-11-25 2008-06-18 シャープ株式会社 画像処理装置、画像読取装置及び画像形成装置
JP2007225863A (ja) * 2006-02-23 2007-09-06 Matsushita Electric Ind Co Ltd Ｅｍｉ低減制御装置
TW200849806A (en) * 2007-06-01 2008-12-16 Tai 1 Microelectronics Corp Frequency-hopping carrier generator
US8094698B2 (en) * 2008-01-29 2012-01-10 Realtek Semiconductor Corp. Method for generating a spread spectrum clock and apparatus thereof
JP2010220148A (ja) * 2009-03-19 2010-09-30 Kawasaki Microelectronics Inc コード生成回路およびイメージセンサ
KR101654218B1 (ko) * 2010-01-13 2016-09-06 삼성전자주식회사 스프레드 스펙트럼 클럭 발생기

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0655829A1 (en) * 1993-11-29 1995-05-31 Lexmark International, Inc. Spread spectrum clock generator and associated method
US6294936B1 (en) * 1998-09-28 2001-09-25 American Microsystems, Inc. Spread-spectrum modulation methods and circuit for clock generator phase-locked loop
CN101630951A (zh) * 2008-07-14 2010-01-20 瑞鼎科技股份有限公司 扩频时钟信号发生器

Also Published As

Publication number Publication date
JP2015039148A (ja) 2015-02-26
EP2840778B1 (en) 2017-02-08
JP6152014B2 (ja) 2017-06-21
US9639114B2 (en) 2017-05-02
EP2840778A1 (en) 2015-02-25
CN104426504A (zh) 2015-03-18
US20150052379A1 (en) 2015-02-19

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Granted publication date: 20170301