JPS5856579A - 映像クランプ回路 - Google Patents

映像クランプ回路

Info

Publication number
JPS5856579A
JPS5856579A JP56153574A JP15357481A JPS5856579A JP S5856579 A JPS5856579 A JP S5856579A JP 56153574 A JP56153574 A JP 56153574A JP 15357481 A JP15357481 A JP 15357481A JP S5856579 A JPS5856579 A JP S5856579A
Authority
JP
Japan
Prior art keywords
signal
circuit
pulse
clamp
transistor
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.)
Granted
Application number
JP56153574A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0421386B2 (OSRAM
Inventor
Hiroshi Ito
博 伊藤
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric 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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP56153574A priority Critical patent/JPS5856579A/ja
Publication of JPS5856579A publication Critical patent/JPS5856579A/ja
Publication of JPH0421386B2 publication Critical patent/JPH0421386B2/ja
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
JP56153574A 1981-09-30 1981-09-30 映像クランプ回路 Granted JPS5856579A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56153574A JPS5856579A (ja) 1981-09-30 1981-09-30 映像クランプ回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56153574A JPS5856579A (ja) 1981-09-30 1981-09-30 映像クランプ回路

Publications (2)

Publication Number Publication Date
JPS5856579A true JPS5856579A (ja) 1983-04-04
JPH0421386B2 JPH0421386B2 (OSRAM) 1992-04-09

Family

ID=15565462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56153574A Granted JPS5856579A (ja) 1981-09-30 1981-09-30 映像クランプ回路

Country Status (1)

Country Link
JP (1) JPS5856579A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0297813A (ja) * 1988-09-30 1990-04-10 Daido Steel Co Ltd 廃棄物溶融処理装置
JPH03295368A (ja) * 1990-04-12 1991-12-26 Matsushita Electric Ind Co Ltd Ｄｃレベル制御回路

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947010A (OSRAM) * 1972-09-11 1974-05-07
JPS5625882A (en) * 1979-08-09 1981-03-12 Fujitsu Ltd Clamp circuit
JPS56119581A (en) * 1980-02-25 1981-09-19 Nec Corp Clamp circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947010A (OSRAM) * 1972-09-11 1974-05-07
JPS5625882A (en) * 1979-08-09 1981-03-12 Fujitsu Ltd Clamp circuit
JPS56119581A (en) * 1980-02-25 1981-09-19 Nec Corp Clamp circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0297813A (ja) * 1988-09-30 1990-04-10 Daido Steel Co Ltd 廃棄物溶融処理装置
JPH03295368A (ja) * 1990-04-12 1991-12-26 Matsushita Electric Ind Co Ltd Ｄｃレベル制御回路

Also Published As

Publication number Publication date
JPH0421386B2 (OSRAM) 1992-04-09

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