JPS5421115A - Phase synchronism system for video signal - Google Patents

Phase synchronism system for video signal

Info

Publication number
JPS5421115A
JPS5421115A JP8584777A JP8584777A JPS5421115A JP S5421115 A JPS5421115 A JP S5421115A JP 8584777 A JP8584777 A JP 8584777A JP 8584777 A JP8584777 A JP 8584777A JP S5421115 A JPS5421115 A JP S5421115A
Authority
JP
Japan
Prior art keywords
video signal
phase synchronism
synchronism system
phase
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
JP8584777A
Other languages
Japanese (ja)
Inventor
Toshio Suhara
Takeshi Togashi
Takashi Kawade
Kanko Yuki
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP8584777A priority Critical patent/JPS5421115A/en
Publication of JPS5421115A publication Critical patent/JPS5421115A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To surely enable to discriminate the phase synchronism signal at reception side, by assigning 0+1 to +1 of the end of black block group signal and 0-1 to -1 as the phase synchronous signal, in a synchronous tri-state circuit.
COPYRIGHT: (C)1979,JPO&Japio
JP8584777A 1977-07-18 1977-07-18 Phase synchronism system for video signal Pending JPS5421115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8584777A JPS5421115A (en) 1977-07-18 1977-07-18 Phase synchronism system for video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8584777A JPS5421115A (en) 1977-07-18 1977-07-18 Phase synchronism system for video signal

Publications (1)

Publication Number Publication Date
JPS5421115A true JPS5421115A (en) 1979-02-17

Family

ID=13870254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8584777A Pending JPS5421115A (en) 1977-07-18 1977-07-18 Phase synchronism system for video signal

Country Status (1)

Country Link
JP (1) JPS5421115A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4990419A (en) * 1972-12-28 1974-08-29
JPS5029034A (en) * 1973-07-17 1975-03-24
JPS5029035A (en) * 1973-07-17 1975-03-24
JPS5029033A (en) * 1973-07-17 1975-03-24

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4990419A (en) * 1972-12-28 1974-08-29
JPS5029034A (en) * 1973-07-17 1975-03-24
JPS5029035A (en) * 1973-07-17 1975-03-24
JPS5029033A (en) * 1973-07-17 1975-03-24

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