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JPS52155913A - Threshold circuit - Google Patents

Threshold circuit

Info

Publication number
JPS52155913A
JPS52155913A JP7260276A JP7260276A JPS52155913A JP S52155913 A JPS52155913 A JP S52155913A JP 7260276 A JP7260276 A JP 7260276A JP 7260276 A JP7260276 A JP 7260276A JP S52155913 A JPS52155913 A JP S52155913A
Authority
JP
Japan
Prior art keywords
threshold circuit
video signal
peak value
value detection
circuit
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
JP7260276A
Other languages
Japanese (ja)
Other versions
JPS5845873B2 (en
Inventor
Shuichi Takahashi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP51072602A priority Critical patent/JPS5845873B2/en
Publication of JPS52155913A publication Critical patent/JPS52155913A/en
Publication of JPS5845873B2 publication Critical patent/JPS5845873B2/en
Expired legal-status Critical Current

Links

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  • Picture Signal Circuits (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE: To make the operation stable, by adding pulses to the peak value detection circuit at the blanking time of the video signal from the pulse addition circuit so that the threshold potential (SH) can be determined even if the video signal is zero and the peak value detection is disable.
COPYRIGHT: (C)1977,JPO&Japio
JP51072602A 1976-06-19 1976-06-19 threshold circuit Expired JPS5845873B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51072602A JPS5845873B2 (en) 1976-06-19 1976-06-19 threshold circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51072602A JPS5845873B2 (en) 1976-06-19 1976-06-19 threshold circuit

Publications (2)

Publication Number Publication Date
JPS52155913A true JPS52155913A (en) 1977-12-24
JPS5845873B2 JPS5845873B2 (en) 1983-10-13

Family

ID=13494098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51072602A Expired JPS5845873B2 (en) 1976-06-19 1976-06-19 threshold circuit

Country Status (1)

Country Link
JP (1) JPS5845873B2 (en)

Also Published As

Publication number Publication date
JPS5845873B2 (en) 1983-10-13

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