IT986137B - Correttore di apertura per un segnale di immagine televisiva - Google Patents

Correttore di apertura per un segnale di immagine televisiva

Info

Publication number
IT986137B
IT986137B IT50552/73A IT5055273A IT986137B IT 986137 B IT986137 B IT 986137B IT 50552/73 A IT50552/73 A IT 50552/73A IT 5055273 A IT5055273 A IT 5055273A IT 986137 B IT986137 B IT 986137B
Authority
IT
Italy
Prior art keywords
television picture
picture sign
corrector
opening
opening corrector
Prior art date
Application number
IT50552/73A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT986137B publication Critical patent/IT986137B/it

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)
  • Processing Of Color Television Signals (AREA)
IT50552/73A 1972-06-10 1973-06-07 Correttore di apertura per un segnale di immagine televisiva IT986137B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7207934.A NL158987B (nl) 1972-06-10 1972-06-10 Apertuurcorrector voor een televisiebeeldsignaal, alsmede televisie-opneeminrichting, daarvan voorzien.

Publications (1)

Publication Number Publication Date
IT986137B true IT986137B (it) 1975-01-20

Family

ID=19816249

Family Applications (1)

Application Number Title Priority Date Filing Date
IT50552/73A IT986137B (it) 1972-06-10 1973-06-07 Correttore di apertura per un segnale di immagine televisiva

Country Status (11)

Country Link
US (1) US3919470A (it)
JP (1) JPS5232929B2 (it)
AT (1) AT324454B (it)
CA (1) CA1011870A (it)
DE (1) DE2325499C3 (it)
ES (1) ES415715A1 (it)
FR (1) FR2188381B1 (it)
GB (1) GB1420257A (it)
IT (1) IT986137B (it)
NL (1) NL158987B (it)
SE (1) SE381157B (it)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041531A (en) * 1974-07-05 1977-08-09 Rca Corporation Television signal processing apparatus including a transversal equalizer
JPS51107031A (it) * 1975-03-17 1976-09-22 Matsushita Electric Ind Co Ltd
NL7511784A (nl) * 1975-03-24 1977-04-13 Philips Nv Werkwijze en inrichting voor het maken van een videoplaat.
NL185439C (nl) * 1977-11-28 1990-04-02 Philips Nv Televisiecameraschakeling voorzien van een gamma- en een apertuurcorrectieschakeling.
US4245238A (en) * 1979-05-11 1981-01-13 Rca Corporation Non-linear processing of video image vertical detail information
US4404584A (en) * 1979-05-11 1983-09-13 Rca Corporation Signal processing apparatus effecting asymmetrical vertical peaking
JPS5689173A (en) * 1979-12-20 1981-07-20 Sony Corp Vertical aperture correcting circuit
US4336552A (en) * 1980-12-17 1982-06-22 Sony Corporation Vertical aperture correction circuit
FR2501941B1 (fr) * 1981-03-12 1986-04-11 Cit Alcatel Procede et dispositif d'accentuation des traits d'une image en noir et blanc reproduite a partir d'une transcription numerique
FR2507041B1 (fr) * 1981-05-27 1985-10-18 Thomson Csf Dispositif correcteur d'un signal videofrequence de television par attenuation dynamique du niveau du bruit et source d'images de television comportant un tel dispositif
NL8103090A (nl) * 1981-06-26 1983-01-17 Philips Nv Televisiekamera voorzien van een fokusseerinrichting.
DE3226432A1 (de) * 1981-10-14 1984-01-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur versteilerung der flanken eines videosignals
DE3400674C1 (de) * 1984-01-11 1985-03-21 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Schaltung zur Versteilerung der Flanken eines Videosignals
US4663653A (en) * 1985-11-22 1987-05-05 Rca Corporation Vertical detail enhancer
EP0342511B1 (en) * 1988-05-18 1995-05-03 Hitachi, Ltd. Aperture correction circuit
US4979024A (en) * 1988-09-19 1990-12-18 Fuji Photo Film Co., Ltd. Vertical contour enhancement suppression circuit
DE4090689T1 (de) * 1989-04-28 1991-04-25 Ikegami Tsushinki Kk Konturhervorhebungsgeraet in einer fernsehkamera
JP2596460B2 (ja) * 1989-04-28 1997-04-02 池上通信機株式会社 テレビカメラの輪郭強調装置
JPH0522655A (ja) * 1991-07-10 1993-01-29 Sony Corp ビデオカメラ
US5903316A (en) * 1992-12-25 1999-05-11 Canon Kabushiki Kaisha Information signal processing apparatus
US5543859A (en) * 1994-04-15 1996-08-06 Matsushita Electric Industrial Co., Ltd. Horizontal contour emphasizing signal processor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3011018A (en) * 1956-09-26 1961-11-28 Columbia Broadcasting Syst Inc Highlight aperture correction system
US3783190A (en) * 1971-04-08 1974-01-01 Gte Sylvania Inc Aperture correction circuit for low light level television camera
US3743770A (en) * 1971-08-02 1973-07-03 Singer Co Automatic aperture corrector

Also Published As

Publication number Publication date
US3919470A (en) 1975-11-11
SE381157B (sv) 1975-11-24
FR2188381B1 (it) 1981-08-07
USB357803I5 (it) 1975-01-28
DE2325499A1 (de) 1974-01-03
CA1011870A (en) 1977-06-07
ES415715A1 (es) 1976-02-01
DE2325499C3 (de) 1975-11-13
JPS4963329A (it) 1974-06-19
FR2188381A1 (it) 1974-01-18
DE2325499B2 (de) 1975-04-03
NL7207934A (it) 1973-12-12
AT324454B (de) 1975-09-10
NL158987B (nl) 1978-12-15
GB1420257A (en) 1976-01-07
JPS5232929B2 (it) 1977-08-25

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