JPS5245256A - Peak value holding circuit - Google Patents

Peak value holding circuit

Info

Publication number
JPS5245256A
JPS5245256A JP11477875A JP11477875A JPS5245256A JP S5245256 A JPS5245256 A JP S5245256A JP 11477875 A JP11477875 A JP 11477875A JP 11477875 A JP11477875 A JP 11477875A JP S5245256 A JPS5245256 A JP S5245256A
Authority
JP
Japan
Prior art keywords
peak value
holding circuit
value holding
picture
brightness
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
JP11477875A
Other languages
Japanese (ja)
Other versions
JPS5713987B2 (en
Inventor
Masahide Okumura
Koji Saito
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11477875A priority Critical patent/JPS5245256A/en
Publication of JPS5245256A publication Critical patent/JPS5245256A/en
Publication of JPS5713987B2 publication Critical patent/JPS5713987B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: A peak value holding circuit composing an automatic picture tuning circuit is improved, so that the contrast and brightness of picture images are stably maintained at all times.
COPYRIGHT: (C)1977,JPO&Japio
JP11477875A 1975-09-25 1975-09-25 Peak value holding circuit Granted JPS5245256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11477875A JPS5245256A (en) 1975-09-25 1975-09-25 Peak value holding circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11477875A JPS5245256A (en) 1975-09-25 1975-09-25 Peak value holding circuit

Publications (2)

Publication Number Publication Date
JPS5245256A true JPS5245256A (en) 1977-04-09
JPS5713987B2 JPS5713987B2 (en) 1982-03-20

Family

ID=14646437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11477875A Granted JPS5245256A (en) 1975-09-25 1975-09-25 Peak value holding circuit

Country Status (1)

Country Link
JP (1) JPS5245256A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5780967U (en) * 1980-11-05 1982-05-19

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922073A (en) * 1972-04-24 1974-02-27
JPS5084169A (en) * 1973-11-27 1975-07-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922073A (en) * 1972-04-24 1974-02-27
JPS5084169A (en) * 1973-11-27 1975-07-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5780967U (en) * 1980-11-05 1982-05-19
JPH0314865Y2 (en) * 1980-11-05 1991-04-02

Also Published As

Publication number Publication date
JPS5713987B2 (en) 1982-03-20

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