SE438764B - Televisionskamerakrets med en gamma- och en aperturkorrektionskrets - Google Patents

Televisionskamerakrets med en gamma- och en aperturkorrektionskrets

Info

Publication number
SE438764B
SE438764B SE7812107A SE7812107A SE438764B SE 438764 B SE438764 B SE 438764B SE 7812107 A SE7812107 A SE 7812107A SE 7812107 A SE7812107 A SE 7812107A SE 438764 B SE438764 B SE 438764B
Authority
SE
Sweden
Prior art keywords
signal
gamma
aperture
correction
core
Prior art date
Application number
SE7812107A
Other languages
English (en)
Swedish (sv)
Other versions
SE7812107L (sv
Inventor
H Blom
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
Publication of SE7812107L publication Critical patent/SE7812107L/xx
Publication of SE438764B publication Critical patent/SE438764B/sv

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
    • H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
    • H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
SE7812107A 1977-11-28 1978-11-24 Televisionskamerakrets med en gamma- och en aperturkorrektionskrets SE438764B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7713050,A NL185439C (nl) 1977-11-28 1977-11-28 Televisiecameraschakeling voorzien van een gamma- en een apertuurcorrectieschakeling.

Publications (2)

Publication Number Publication Date
SE7812107L SE7812107L (sv) 1979-05-29
SE438764B true SE438764B (sv) 1985-04-29

Family

ID=19829629

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7812107A SE438764B (sv) 1977-11-28 1978-11-24 Televisionskamerakrets med en gamma- och en aperturkorrektionskrets

Country Status (10)

Country Link
US (1) US4200888A (fr)
JP (1) JPS5490925A (fr)
AU (1) AU522626B2 (fr)
CA (1) CA1121905A (fr)
DE (1) DE2850856C2 (fr)
FR (1) FR2410403A1 (fr)
GB (1) GB2010042B (fr)
IT (1) IT1100589B (fr)
NL (1) NL185439C (fr)
SE (1) SE438764B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8200667A (nl) * 1982-02-19 1983-09-16 Philips Nv Gammakorrektieschakeling voor televisie.
GB2126824B (en) * 1982-09-09 1986-04-23 Link Electronics Ltd Camera tube compensation for varations of camera lens focal length
JPS59221078A (ja) * 1983-05-28 1984-12-12 Nippon Hoso Kyokai <Nhk> 画像信号輪郭補正方法
JPS6218881A (ja) * 1985-07-18 1987-01-27 Fuji Photo Film Co Ltd フイ−ルド／フレ−ム変換方式
JPS62239670A (ja) * 1986-04-11 1987-10-20 Ikegami Tsushinki Co Ltd 輪郭強調装置
JP2521183Y2 (ja) * 1987-09-29 1996-12-25 ソニー株式会社 ディジタル信号処理回路
KR910006373B1 (ko) * 1988-06-11 1991-08-21 삼성전자 주식회사 잡음 제거 레벨 자동 조정 회로
US5004896A (en) * 1989-07-26 1991-04-02 Educational Testing Service Optical document scanning and mark sensing
US5175621A (en) * 1989-08-10 1992-12-29 Ikegami Tsushinki Co., Ltd. Gamma correction circuit and method thereof
US5903316A (en) * 1992-12-25 1999-05-11 Canon Kabushiki Kaisha Information signal processing apparatus
JP2003032513A (ja) * 2001-07-17 2003-01-31 Sanyo Electric Co Ltd 画像信号処理装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH474068A (de) * 1967-04-19 1969-06-15 Sulzer Ag Einrichtung zum Feststellen der radioaktiven Strahlung einer Strahlungsquelle
NL158987B (nl) * 1972-06-10 1978-12-15 Philips Nv Apertuurcorrector voor een televisiebeeldsignaal, alsmede televisie-opneeminrichting, daarvan voorzien.
JPS5745101B2 (fr) * 1973-07-17 1982-09-25
US4057828A (en) * 1975-11-17 1977-11-08 Harris Corporation Contrast compression circuits

Also Published As

Publication number Publication date
NL7713050A (nl) 1979-05-30
US4200888A (en) 1980-04-29
CA1121905A (fr) 1982-04-13
FR2410403A1 (fr) 1979-06-22
DE2850856A1 (de) 1979-05-31
SE7812107L (sv) 1979-05-29
AU522626B2 (en) 1982-06-17
FR2410403B1 (fr) 1983-02-18
GB2010042B (en) 1982-05-06
IT7830197A0 (it) 1978-11-24
GB2010042A (en) 1979-06-20
IT1100589B (it) 1985-09-28
NL185439C (nl) 1990-04-02
JPS5490925A (en) 1979-07-19
NL185439B (nl) 1989-11-01
AU4193578A (en) 1979-06-07
JPS6248945B2 (fr) 1987-10-16
DE2850856C2 (de) 1986-04-17

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