CA1228158A - Apparatus for correcting errors in color signal transitions - Google Patents

Apparatus for correcting errors in color signal transitions

Info

Publication number
CA1228158A
CA1228158A CA000468747A CA468747A CA1228158A CA 1228158 A CA1228158 A CA 1228158A CA 000468747 A CA000468747 A CA 000468747A CA 468747 A CA468747 A CA 468747A CA 1228158 A CA1228158 A CA 1228158A
Authority
CA
Canada
Prior art keywords
signal
color
signals
color difference
wide bandwidth
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
Application number
CA000468747A
Other languages
English (en)
French (fr)
Inventor
Robert N. Hurst, Jr.
Robert A. Dischert
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Application granted granted Critical
Publication of CA1228158A publication Critical patent/CA1228158A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
CA000468747A 1983-12-05 1984-11-27 Apparatus for correcting errors in color signal transitions Expired CA1228158A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US558,373 1983-12-05
US06/558,373 US4553157A (en) 1983-12-05 1983-12-05 Apparatus for correcting errors in color signal transitions

Publications (1)

Publication Number Publication Date
CA1228158A true CA1228158A (en) 1987-10-13

Family

ID=24229299

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000468747A Expired CA1228158A (en) 1983-12-05 1984-11-27 Apparatus for correcting errors in color signal transitions

Country Status (8)

Country Link
US (1) US4553157A (en, 2012)
JP (1) JPS60227589A (en, 2012)
KR (1) KR920006173B1 (en, 2012)
CA (1) CA1228158A (en, 2012)
DE (1) DE3444399C2 (en, 2012)
FR (1) FR2561479B1 (en, 2012)
GB (1) GB2151110B (en, 2012)
IT (1) IT1178636B (en, 2012)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8700565D0 (en) * 1987-01-12 1987-02-18 Crosfield Electronics Ltd Video image enhancement
US5283634A (en) * 1987-06-18 1994-02-01 Canon Kabushiki Kaisha Luminance signal correcting method
EP0340648B1 (en) * 1988-04-30 1994-11-23 Victor Company Of Japan, Limited Picture-quality improving circuit
US4980756A (en) * 1989-08-25 1990-12-25 Rca Licensing Corporation Control signal generator for a television system
US5089882A (en) * 1989-09-08 1992-02-18 Mscl, Inc. Processor for color video signals
JP3137704B2 (ja) * 1991-12-11 2001-02-26 株式会社日立製作所 色再現補正方法，色再現補正回路及びこれを用いたカラーディスプレイ装置
JPH0678318A (ja) * 1992-08-28 1994-03-18 Toshiba Corp 投写型液晶表示装置
GB2312350B (en) * 1996-04-17 2000-08-30 Quantel Ltd A signal processing system
JP2000500952A (ja) * 1996-09-16 2000-01-25 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 知覚される色遷移状態の改善
JPH1141618A (ja) * 1997-07-23 1999-02-12 Sony Corp 映像信号処理回路
US7248268B2 (en) * 2004-04-09 2007-07-24 Clairvoyante, Inc Subpixel rendering filters for high brightness subpixel layouts
CN101156432A (zh) * 2005-04-04 2008-04-02 皇家飞利浦电子股份有限公司 用于较少边纹的颜色转换单元
US8754990B2 (en) * 2007-09-14 2014-06-17 Broadcom Corporation Method and system for processing chroma signals
JP6172089B2 (ja) * 2014-08-26 2017-08-02 トヨタ自動車株式会社 リーフ式サスペンション

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1562170B1 (de) * 1968-03-19 1970-08-27 Fernseh Gmbh System zur Erhoehung der Schaerfe von Farbuebergaengen in Farbfernsehbildern
US3835243A (en) * 1972-04-07 1974-09-10 Matsushita Electric Ind Co Ltd Circuitry for reducing effects of noise on color image
US3778543A (en) * 1972-09-05 1973-12-11 Ellanin Investments Predictive-retrospective method for bandwidth improvement
US4030121A (en) * 1975-12-02 1977-06-14 Faroudja Y C Video crispener
AU485641B2 (en) * 1976-10-29 1977-08-18 Matsushita Electric Industrial Co., Ltd. Color-difference signal modifying apparatus
US4245239A (en) * 1977-07-01 1981-01-13 Quadricolor Technology L.P. Color television receiving system utilizing inferred high frequency signal components to reduce color infidelities in regions of high color saturation
US4181917A (en) * 1977-07-01 1980-01-01 Quadricolor Technology L.P. Color television receiving system utilizing inferred high frequency signal components to reduce color infidelities in regions of color transitions
JPS6031302B2 (ja) * 1977-12-19 1985-07-22 ソニー株式会社 色信号の周波数特性改善回路
US4337479A (en) * 1979-09-13 1982-06-29 Matsushita Electric Industrial Co., Ltd. Color resolution compensator
GB2069287B (en) * 1980-01-30 1983-09-01 Sony Corp Decoding pal television signals
US4296433A (en) * 1980-05-19 1981-10-20 Matsushita Electric Corporation Of America Color television receiving system with forced chroma transients
US4355326A (en) * 1981-02-11 1982-10-19 Zenith Radio Corporation Bandwidth enhancement network for color television signals

Also Published As

Publication number Publication date
GB2151110B (en) 1987-10-14
GB8430686D0 (en) 1985-01-16
IT8423803A0 (it) 1984-11-29
DE3444399C2 (de) 1994-06-09
DE3444399A1 (de) 1985-06-13
KR920006173B1 (ko) 1992-07-31
FR2561479A1 (fr) 1985-09-20
GB2151110A (en) 1985-07-10
IT1178636B (it) 1987-09-09
JPH0455033B2 (en, 2012) 1992-09-02
JPS60227589A (ja) 1985-11-12
IT8423803A1 (it) 1986-05-29
US4553157A (en) 1985-11-12
KR850005208A (ko) 1985-08-21
FR2561479B1 (fr) 1990-08-03

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Legal Events

Date Code Title Description
MKEX Expiry