DE3730623C2 - - Google Patents

Info

Publication number
DE3730623C2
DE3730623C2 DE3730623A DE3730623A DE3730623C2 DE 3730623 C2 DE3730623 C2 DE 3730623C2 DE 3730623 A DE3730623 A DE 3730623A DE 3730623 A DE3730623 A DE 3730623A DE 3730623 C2 DE3730623 C2 DE 3730623C2
Authority
DE
Germany
Prior art keywords
circuit
pulse
transistor
video signal
black level
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE3730623A
Other languages
German (de)
English (en)
Other versions
DE3730623A1 (de
Inventor
Hajime Fukaya Saitama Jp Sumiyoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Toshiba AVE Co Ltd
Original Assignee
Toshiba Corp
Toshiba Audio Video Engineering Co Ltd
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 Toshiba Corp, Toshiba Audio Video Engineering Co Ltd filed Critical Toshiba Corp
Publication of DE3730623A1 publication Critical patent/DE3730623A1/de
Application granted granted Critical
Publication of DE3730623C2 publication Critical patent/DE3730623C2/de
Granted legal-status Critical Current

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
    • H04N5/16—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/18—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
    • 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
    • H04N5/16—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/18—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
    • H04N5/185—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Details Of Television Scanning (AREA)
  • Television Receiver Circuits (AREA)
DE19873730623 1986-09-11 1987-09-11 Schaltung zur erzeugung eines video-signalverarbeitungsimpulses Granted DE3730623A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61214282A JPH0728378B2 (ja) 1986-09-11 1986-09-11 ビデオ処理用パルス成形回路

Publications (2)

Publication Number Publication Date
DE3730623A1 DE3730623A1 (de) 1988-03-17
DE3730623C2 true DE3730623C2 (enrdf_load_stackoverflow) 1992-11-05

Family

ID=16653152

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873730623 Granted DE3730623A1 (de) 1986-09-11 1987-09-11 Schaltung zur erzeugung eines video-signalverarbeitungsimpulses

Country Status (4)

Country Link
JP (1) JPH0728378B2 (enrdf_load_stackoverflow)
KR (1) KR910002777B1 (enrdf_load_stackoverflow)
DE (1) DE3730623A1 (enrdf_load_stackoverflow)
GB (1) GB2197562B (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935542B2 (ja) * 1976-11-18 1984-08-29 松下電器産業株式会社 テレビジヨン受像機の直流分再生装置
US4410907A (en) * 1981-11-16 1983-10-18 Rca Corporation Burst gate keying and back porch clamp pulse generator
JPS59218080A (ja) * 1983-05-25 1984-12-08 Matsushita Electric Ind Co Ltd ペデスタルレベルクランプ回路

Also Published As

Publication number Publication date
KR910002777B1 (ko) 1991-05-04
JPS6369382A (ja) 1988-03-29
GB8721281D0 (en) 1987-10-14
KR880004679A (ko) 1988-06-07
DE3730623A1 (de) 1988-03-17
GB2197562A (en) 1988-05-18
JPH0728378B2 (ja) 1995-03-29
GB2197562B (en) 1990-10-10

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee