JP4500590B2 - 信号処理装置 - Google Patents

信号処理装置 Download PDF

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Publication number
JP4500590B2
JP4500590B2 JP2004172786A JP2004172786A JP4500590B2 JP 4500590 B2 JP4500590 B2 JP 4500590B2 JP 2004172786 A JP2004172786 A JP 2004172786A JP 2004172786 A JP2004172786 A JP 2004172786A JP 4500590 B2 JP4500590 B2 JP 4500590B2
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JP
Japan
Prior art keywords
signal
video signal
output
clamp
unit
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
JP2004172786A
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English (en)
Japanese (ja)
Other versions
JP2005354385A (ja
JP2005354385A5 (enExample
Inventor
裕也 三浦
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP2004172786A priority Critical patent/JP4500590B2/ja
Priority to EP05253555A priority patent/EP1605688A3/en
Priority to CNB2005100769448A priority patent/CN100409664C/zh
Priority to KR1020050049143A priority patent/KR100733936B1/ko
Priority to US11/148,824 priority patent/US7460177B2/en
Publication of JP2005354385A publication Critical patent/JP2005354385A/ja
Publication of JP2005354385A5 publication Critical patent/JP2005354385A5/ja
Application granted granted Critical
Publication of JP4500590B2 publication Critical patent/JP4500590B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/16—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/18—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
    • H04N5/185—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/12—Digital output to print unit, e.g. line printer, chain printer

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Picture Signal Circuits (AREA)
  • Analogue/Digital Conversion (AREA)
JP2004172786A 2004-06-10 2004-06-10 信号処理装置 Expired - Fee Related JP4500590B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2004172786A JP4500590B2 (ja) 2004-06-10 2004-06-10 信号処理装置
EP05253555A EP1605688A3 (en) 2004-06-10 2005-06-09 Signal processing device
CNB2005100769448A CN100409664C (zh) 2004-06-10 2005-06-09 信号处理装置
KR1020050049143A KR100733936B1 (ko) 2004-06-10 2005-06-09 신호 처리 장치
US11/148,824 US7460177B2 (en) 2004-06-10 2005-06-09 Video signal clamping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004172786A JP4500590B2 (ja) 2004-06-10 2004-06-10 信号処理装置

Publications (3)

Publication Number Publication Date
JP2005354385A JP2005354385A (ja) 2005-12-22
JP2005354385A5 JP2005354385A5 (enExample) 2007-07-19
JP4500590B2 true JP4500590B2 (ja) 2010-07-14

Family

ID=34941626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004172786A Expired - Fee Related JP4500590B2 (ja) 2004-06-10 2004-06-10 信号処理装置

Country Status (5)

Country Link
US (1) US7460177B2 (enExample)
EP (1) EP1605688A3 (enExample)
JP (1) JP4500590B2 (enExample)
KR (1) KR100733936B1 (enExample)
CN (1) CN100409664C (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8432488B2 (en) 2009-04-23 2013-04-30 Panasonic Corporation Video processing apparatus and video processing method

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI273848B (en) * 2004-10-05 2007-02-11 Sanyo Electric Co Video signal processing circuit
TWI271102B (en) * 2005-03-04 2007-01-11 Chip Advanced Technology Inc Method for video signal process and method for signal processing apparatus calibration
US20090190035A1 (en) * 2008-01-29 2009-07-30 Chao-Hsin Lu Circuit for processing video signal
US7903384B2 (en) * 2008-11-28 2011-03-08 Panasonic Corporation Ground detection circuit for video signal driver to prevent large clamp transistor current
CN102026349B (zh) * 2010-12-09 2014-08-13 中兴通讯股份有限公司 发射功率的控制方法及装置
US9632111B2 (en) * 2013-12-10 2017-04-25 Infineon Technologies Ag Passive input filter with clamping for shunt measurements
CN112309311B (zh) * 2019-07-26 2022-03-22 西安诺瓦星云科技股份有限公司 显示控制方法、装置和显示控制卡以及计算机可读介质

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2814039B2 (ja) * 1991-09-12 1998-10-22 シャープ株式会社 クランプ回路
JP2830599B2 (ja) * 1992-04-13 1998-12-02 日本電気株式会社 ペデスタルクランプ装置
US5410366A (en) * 1993-11-01 1995-04-25 Motorola, Inc. Circuit and method of clamping a video signal with first and second current sources
JPH07135579A (ja) * 1993-11-12 1995-05-23 Matsushita Electric Ind Co Ltd クランプ回路
JP2837105B2 (ja) * 1994-01-05 1998-12-14 三星電子株式会社 テレビ信号中に埋め込まれたディジタル信号に対するシグマ−デルタ・アナログ−ディジタル変換機能を備えた受信器
JPH07295409A (ja) * 1994-04-25 1995-11-10 Canon Inc 加熱定着装置及びその製造方法
JP3326661B2 (ja) * 1995-01-12 2002-09-24 ソニー株式会社 クランプパルス発生回路
JPH09159722A (ja) * 1995-12-05 1997-06-20 Advantest Corp 半導体直流試験装置
JPH10285432A (ja) * 1997-04-03 1998-10-23 Nec Corp 映像信号のクランプ装置
TW421925B (en) * 1998-04-24 2001-02-11 Koninkl Philips Electronics Nv Video rate D/A converter with sigma/delta modulator
FR2798791B1 (fr) * 1999-09-17 2001-12-07 Thomson Csf Convertisseur numerique-analogique en courant
US6437718B1 (en) * 2000-06-28 2002-08-20 Trw Inc. Continuous time delta-sigma modulator
DE10042281A1 (de) 2000-08-29 2002-03-14 Philips Corp Intellectual Pty Schaltungsanordnung zur Regenerierung des Schwarzwertes von Videosignalen
CN1214621C (zh) * 2000-11-27 2005-08-10 汤姆森特许公司 后沿箝位电路
JP2004172786A (ja) * 2002-11-19 2004-06-17 Sony Corp オーディオ信号の再生方法および再生装置
JP2004215184A (ja) * 2003-01-08 2004-07-29 Renesas Technology Corp クランプ回路
JP4268614B2 (ja) * 2003-04-15 2009-05-27 旭化成エレクトロニクス株式会社 自動利得制御回路
TW595120B (en) * 2003-05-21 2004-06-21 Sunplus Technology Co Ltd Delta-Sigma modulator
US7345714B2 (en) * 2005-01-13 2008-03-18 National Semiconductor Corporation Video signal clamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8432488B2 (en) 2009-04-23 2013-04-30 Panasonic Corporation Video processing apparatus and video processing method

Also Published As

Publication number Publication date
EP1605688A3 (en) 2008-05-07
JP2005354385A (ja) 2005-12-22
KR20060048291A (ko) 2006-05-18
CN1708102A (zh) 2005-12-14
CN100409664C (zh) 2008-08-06
US20050275756A1 (en) 2005-12-15
KR100733936B1 (ko) 2007-06-29
US7460177B2 (en) 2008-12-02
EP1605688A2 (en) 2005-12-14

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