PT95719A - Aparelho de processamento de sinais video vermelho, verde e azul nao lineares - Google Patents

Aparelho de processamento de sinais video vermelho, verde e azul nao lineares

Info

Publication number
PT95719A
PT95719A PT95719A PT9571990A PT95719A PT 95719 A PT95719 A PT 95719A PT 95719 A PT95719 A PT 95719A PT 9571990 A PT9571990 A PT 9571990A PT 95719 A PT95719 A PT 95719A
Authority
PT
Portugal
Prior art keywords
signal
linear
signal portion
coupled
processing system
Prior art date
Application number
PT95719A
Other languages
English (en)
Other versions
PT95719B (pt
Inventor
Peter Eduard Haferl
Thomas Heinz Sauder
Original Assignee
Rca Licensing 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
Priority claimed from GB898925438A external-priority patent/GB8925438D0/en
Application filed by Rca Licensing Corp filed Critical Rca Licensing Corp
Publication of PT95719A publication Critical patent/PT95719A/pt
Publication of PT95719B publication Critical patent/PT95719B/pt

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
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • H04N9/69—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Picture Signal Circuits (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Control Of El Displays (AREA)
  • Image Processing (AREA)
  • Color Television Image Signal Generators (AREA)
  • Radar Systems Or Details Thereof (AREA)
PT95719A 1989-11-10 1990-10-29 Aparelho de processamento de sinais video vermelho, verde e azul nao lineares PT95719B (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898925438A GB8925438D0 (en) 1989-11-10 1989-11-10 Non-linear rgb video signal processing
US07/583,881 US5083198A (en) 1989-11-10 1990-09-19 Nonlinear RGB video signal processing

Publications (2)

Publication Number Publication Date
PT95719A true PT95719A (pt) 1992-06-30
PT95719B PT95719B (pt) 1998-07-31

Family

ID=26296183

Family Applications (1)

Application Number Title Priority Date Filing Date
PT95719A PT95719B (pt) 1989-11-10 1990-10-29 Aparelho de processamento de sinais video vermelho, verde e azul nao lineares

Country Status (19)

Country Link
EP (1) EP0427564B1 (pt)
JP (1) JP2696728B2 (pt)
CN (1) CN1031093C (pt)
AT (1) ATE146324T1 (pt)
AU (1) AU648276B2 (pt)
BR (1) BR9005666A (pt)
CA (1) CA2027337C (pt)
CZ (1) CZ285617B6 (pt)
DE (1) DE69029369T2 (pt)
DK (1) DK0427564T3 (pt)
ES (1) ES2095866T3 (pt)
FI (1) FI98184C (pt)
GR (1) GR3022555T3 (pt)
HU (1) HU208774B (pt)
MY (1) MY106634A (pt)
PL (1) PL163853B1 (pt)
PT (1) PT95719B (pt)
SG (1) SG82530A1 (pt)
TR (1) TR26358A (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137373C1 (pt) * 1991-11-13 1993-06-17 Siemens Ag, 8000 Muenchen, De
MY110211A (en) * 1992-06-17 1998-02-28 Rca Thomson Licensing Corp Kinescope driver apparatus with contrast enhancement.
DE4300304C2 (de) * 1993-01-08 2003-07-17 Bts Holding Internat Bv Breda Schaltungsanordnung zur Gamma-Korrektur
US5349389A (en) * 1993-04-14 1994-09-20 Rca Thomson Licensing Corporation Video attenuator with output combined with signal from non-linear shunt branch to provide gamma correction and high frequency detail enhancement
US5889565A (en) * 1996-05-28 1999-03-30 Philips Electronics North America Corporation Method and apparatus for improving the color rendition of color television receivers
US6961066B2 (en) 1999-04-13 2005-11-01 Athentech Technologies, Inc. Automatic color adjustment for digital images
JP5116487B2 (ja) * 2005-01-26 2013-01-09 ティーピー ビジョン ホールディング ビー ヴィ スパークル処理

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB855587A (en) * 1956-04-12 1960-12-07 Fernseh Gmbh Improvements in or relating to apparatus for the photographic recording of television or like signals
JPS5136194A (pt) * 1974-09-20 1976-03-26 Sanyo Jido Hanbaiki Kk
US4038685A (en) * 1975-03-31 1977-07-26 Rca Corporation Apparatus for automatic gamma control of television color signals
US4057828A (en) * 1975-11-17 1977-11-08 Harris Corporation Contrast compression circuits
US4262304A (en) * 1979-07-16 1981-04-14 Faroudja Y C Low level/signal booster for television transition
JPS5820096A (ja) * 1981-07-29 1983-02-05 Toshiba Corp デイジタルガンマ補正回路
JPS5981978A (ja) * 1982-11-01 1984-05-11 Matsushita Electric Ind Co Ltd 映像信号補正回路
JP2661036B2 (ja) * 1987-05-22 1997-10-08 松下電器産業株式会社 輪郭補正装置
US4812905A (en) * 1988-01-15 1989-03-14 Rossi John P System for compensating for the violation of the constant luminance principle in color television systems
JP2605780B2 (ja) * 1988-02-13 1997-04-30 ソニー株式会社 輝度信号のガンマ補正回路

Also Published As

Publication number Publication date
PL163853B1 (pl) 1994-05-31
PL287704A1 (en) 1991-07-29
EP0427564A3 (en) 1992-01-08
CZ533990A3 (cs) 1999-06-16
CN1031093C (zh) 1996-02-21
DE69029369D1 (de) 1997-01-23
EP0427564A2 (en) 1991-05-15
CZ285617B6 (cs) 1999-10-13
ES2095866T3 (es) 1997-03-01
DK0427564T3 (da) 1997-06-02
HU907084D0 (en) 1991-05-28
CA2027337A1 (en) 1991-05-11
FI98184B (fi) 1997-01-15
FI98184C (fi) 1997-04-25
HU208774B (en) 1993-12-28
BR9005666A (pt) 1991-09-17
AU6599290A (en) 1991-05-16
AU648276B2 (en) 1994-04-21
MY106634A (en) 1995-06-30
HUT55932A (en) 1991-06-28
CN1051651A (zh) 1991-05-22
ATE146324T1 (de) 1996-12-15
PT95719B (pt) 1998-07-31
DE69029369T2 (de) 1997-04-10
JPH03185973A (ja) 1991-08-13
GR3022555T3 (en) 1997-05-31
TR26358A (tr) 1995-03-15
FI905472A0 (fi) 1990-11-05
CA2027337C (en) 2001-04-24
EP0427564B1 (en) 1996-12-11
SG82530A1 (en) 2001-08-21
JP2696728B2 (ja) 1998-01-14

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Legal Events

Date Code Title Description
BB1A Laying open of patent application

Effective date: 19920225

FG3A Patent granted, date of granting

Effective date: 19980407

MM4A Annulment/lapse due to non-payment of fees, searched and examined patent

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20071008