DK0427564T3 - Videosignalbearbejdning - Google Patents

Videosignalbearbejdning

Info

Publication number
DK0427564T3
DK0427564T3 DK90312286.9T DK90312286T DK0427564T3 DK 0427564 T3 DK0427564 T3 DK 0427564T3 DK 90312286 T DK90312286 T DK 90312286T DK 0427564 T3 DK0427564 T3 DK 0427564T3
Authority
DK
Denmark
Prior art keywords
signal
signal portion
coupled
linear
low level
Prior art date
Application number
DK90312286.9T
Other languages
Danish (da)
English (en)
Inventor
Peter Eduard Haferl
Thomas Heinz Sauder
Original Assignee
Rca Thomson 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 Thomson Licensing Corp filed Critical Rca Thomson Licensing Corp
Application granted granted Critical
Publication of DK0427564T3 publication Critical patent/DK0427564T3/da

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)
  • Picture Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Control Of El Displays (AREA)
  • Image Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Color Television Image Signal Generators (AREA)
DK90312286.9T 1989-11-10 1990-11-09 Videosignalbearbejdning DK0427564T3 (da)

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 (1)

Publication Number Publication Date
DK0427564T3 true DK0427564T3 (da) 1997-06-02

Family

ID=26296183

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90312286.9T DK0427564T3 (da) 1989-11-10 1990-11-09 Videosignalbearbejdning

Country Status (19)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137373C1 (zh) * 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
CN101107850B (zh) * 2005-01-26 2012-05-30 皇家飞利浦电子股份有限公司 闪烁处理

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 (zh) * 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
PT95719B (pt) 1998-07-31
ES2095866T3 (es) 1997-03-01
GR3022555T3 (en) 1997-05-31
AU648276B2 (en) 1994-04-21
FI98184C (fi) 1997-04-25
SG82530A1 (en) 2001-08-21
EP0427564A2 (en) 1991-05-15
HU208774B (en) 1993-12-28
EP0427564B1 (en) 1996-12-11
PL287704A1 (en) 1991-07-29
AU6599290A (en) 1991-05-16
CZ285617B6 (cs) 1999-10-13
HU907084D0 (en) 1991-05-28
BR9005666A (pt) 1991-09-17
PL163853B1 (pl) 1994-05-31
EP0427564A3 (en) 1992-01-08
TR26358A (tr) 1995-03-15
FI905472A0 (fi) 1990-11-05
DE69029369T2 (de) 1997-04-10
PT95719A (pt) 1992-06-30
CA2027337C (en) 2001-04-24
CN1051651A (zh) 1991-05-22
ATE146324T1 (de) 1996-12-15
CZ533990A3 (cs) 1999-06-16
HUT55932A (en) 1991-06-28
JPH03185973A (ja) 1991-08-13
CA2027337A1 (en) 1991-05-11
CN1031093C (zh) 1996-02-21
JP2696728B2 (ja) 1998-01-14
DE69029369D1 (de) 1997-01-23
MY106634A (en) 1995-06-30
FI98184B (fi) 1997-01-15

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