JPS6429072A - Field discrimination circuit - Google Patents

Field discrimination circuit

Info

Publication number
JPS6429072A
JPS6429072A JP62184909A JP18490987A JPS6429072A JP S6429072 A JPS6429072 A JP S6429072A JP 62184909 A JP62184909 A JP 62184909A JP 18490987 A JP18490987 A JP 18490987A JP S6429072 A JPS6429072 A JP S6429072A
Authority
JP
Japan
Prior art keywords
pulse
signal
synchronizing
outputted
pulse signal
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.)
Pending
Application number
JP62184909A
Other languages
Japanese (ja)
Inventor
Hiroyoshi Zama
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.)
Alps Alpine Co Ltd
Original Assignee
Alps 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP62184909A priority Critical patent/JPS6429072A/en
Publication of JPS6429072A publication Critical patent/JPS6429072A/en
Pending legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE:To eliminate a need for adjustment of a pulse width by outputting a H/2-time-width synchronizing pulse in synchronism with a vertical synchronizing signal, and latching this pulse with a horizontal synchronizing signal. CONSTITUTION:A composite synchronizing signal is outputted from a synchronizing separating circuit 1, while a pulse signal corresponding to a vertical synchronizing signal is outputted from an integrating circuit 2. Said output pulse is inputted to a logical differentiating circuit 8, then, a pulse signal whose width is 1/2 of the repetition period of a horizontal synchronizing pulse signal and which is in synchronism with a vertical synchronizing pulse signal is outputted. This pulse signal is latched by a flip-flop 14 at the timing of a horizontal pulse signal outputted from a monostable multivibrator 13. Based on an output from this flip-flop 14, a T flip-flop 5 outputs a field discrimination signal.
JP62184909A 1987-07-24 1987-07-24 Field discrimination circuit Pending JPS6429072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62184909A JPS6429072A (en) 1987-07-24 1987-07-24 Field discrimination circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62184909A JPS6429072A (en) 1987-07-24 1987-07-24 Field discrimination circuit

Publications (1)

Publication Number Publication Date
JPS6429072A true JPS6429072A (en) 1989-01-31

Family

ID=16161456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62184909A Pending JPS6429072A (en) 1987-07-24 1987-07-24 Field discrimination circuit

Country Status (1)

Country Link
JP (1) JPS6429072A (en)

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