NL7713052A - Gammacorrectieschakeling voor televisie. - Google Patents

Gammacorrectieschakeling voor televisie.

Info

Publication number
NL7713052A
NL7713052A NL7713052A NL7713052A NL7713052A NL 7713052 A NL7713052 A NL 7713052A NL 7713052 A NL7713052 A NL 7713052A NL 7713052 A NL7713052 A NL 7713052A NL 7713052 A NL7713052 A NL 7713052A
Authority
NL
Netherlands
Prior art keywords
television
correction circuit
gamma correction
gamma
circuit
Prior art date
Application number
NL7713052A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL7713052A priority Critical patent/NL7713052A/xx
Priority to US05/956,308 priority patent/US4227216A/en
Priority to CA315,409A priority patent/CA1128652A/en
Priority to SE7812106A priority patent/SE7812106L/xx
Priority to IT30196/78A priority patent/IT1100199B/it
Priority to GB7845934A priority patent/GB2009557B/en
Priority to DE19782850857 priority patent/DE2850857A1/de
Priority to JP14500078A priority patent/JPS5483310A/ja
Priority to FR7833436A priority patent/FR2410404A1/fr
Publication of NL7713052A publication Critical patent/NL7713052A/xx

Links

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
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/202—Gamma control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
NL7713052A 1977-11-28 1977-11-28 Gammacorrectieschakeling voor televisie. NL7713052A (nl)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL7713052A NL7713052A (nl) 1977-11-28 1977-11-28 Gammacorrectieschakeling voor televisie.
US05/956,308 US4227216A (en) 1977-11-28 1978-10-31 Gamma correction circuit for television
CA315,409A CA1128652A (en) 1977-11-28 1978-10-31 Gamma correction circuit for television
SE7812106A SE7812106L (sv) 1977-11-28 1978-11-24 Gammakorrektionskrets for television
IT30196/78A IT1100199B (it) 1977-11-28 1978-11-24 Circuito correttore di gamma per televisione
GB7845934A GB2009557B (en) 1977-11-28 1978-11-24 Gamma correction for television
DE19782850857 DE2850857A1 (de) 1977-11-28 1978-11-24 Gammakorrekturschaltung fuer fernsehen
JP14500078A JPS5483310A (en) 1977-11-28 1978-11-25 Tv gamma correcting circuit
FR7833436A FR2410404A1 (fr) 1977-11-28 1978-11-27 Circuit de correction de gamma pour television

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7713052A NL7713052A (nl) 1977-11-28 1977-11-28 Gammacorrectieschakeling voor televisie.

Publications (1)

Publication Number Publication Date
NL7713052A true NL7713052A (nl) 1979-05-30

Family

ID=19829631

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7713052A NL7713052A (nl) 1977-11-28 1977-11-28 Gammacorrectieschakeling voor televisie.

Country Status (9)

Country Link
US (1) US4227216A (xx)
JP (1) JPS5483310A (xx)
CA (1) CA1128652A (xx)
DE (1) DE2850857A1 (xx)
FR (1) FR2410404A1 (xx)
GB (1) GB2009557B (xx)
IT (1) IT1100199B (xx)
NL (1) NL7713052A (xx)
SE (1) SE7812106L (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3140230C2 (de) * 1981-10-09 1989-08-31 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur wahlweisen Regelung der Gradation von Fernsehsignalen
NL8200667A (nl) * 1982-02-19 1983-09-16 Philips Nv Gammakorrektieschakeling voor televisie.
JPS627290A (ja) * 1985-07-04 1987-01-14 Fuji Photo Film Co Ltd カラ−ネガフイルム撮像における階調補正方法および装置
GB2211045B (en) * 1987-10-10 1991-08-21 Marconi Co Ltd Linearity adjusting circuit
GB2240001B (en) * 1990-01-16 1993-12-22 Rank Cintel Ltd Film characteristic simulator
GB2250886B (en) * 1990-12-13 1995-06-14 Rank Cintel Ltd Noise reduction in video signals
US6680755B2 (en) * 2001-04-05 2004-01-20 Industrial Technology Research Institute Adjustable biased gamma-correction circuit with central-symmetry voltage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970774A (en) * 1975-03-31 1976-07-20 Rca Corporation Electronic signal mixer
GB1549769A (en) * 1975-08-06 1979-08-08 Rca Corp Negative gamma circuit
CA1101943A (en) * 1975-10-22 1981-05-26 Frederik J. Van Roessel Video switching circuit

Also Published As

Publication number Publication date
GB2009557B (en) 1982-07-07
SE7812106L (sv) 1979-05-29
IT7830196A0 (it) 1978-11-24
US4227216A (en) 1980-10-07
IT1100199B (it) 1985-09-28
CA1128652A (en) 1982-07-27
GB2009557A (en) 1979-06-13
JPS5483310A (en) 1979-07-03
FR2410404A1 (fr) 1979-06-22
DE2850857A1 (de) 1979-05-31

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed