JPS55109093A - Reference pulse extracting system - Google Patents

Reference pulse extracting system

Info

Publication number
JPS55109093A
JPS55109093A JP1618779A JP1618779A JPS55109093A JP S55109093 A JPS55109093 A JP S55109093A JP 1618779 A JP1618779 A JP 1618779A JP 1618779 A JP1618779 A JP 1618779A JP S55109093 A JPS55109093 A JP S55109093A
Authority
JP
Japan
Prior art keywords
signal
output
pulse
reference pulse
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.)
Pending
Application number
JP1618779A
Other languages
Japanese (ja)
Inventor
Shuji Usui
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 Denshi KK
Original Assignee
Hitachi Denshi KK
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 Denshi KK filed Critical Hitachi Denshi KK
Priority to JP1618779A priority Critical patent/JPS55109093A/en
Publication of JPS55109093A publication Critical patent/JPS55109093A/en
Pending legal-status Critical Current

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  • Synchronizing For Television (AREA)

Abstract

PURPOSE: To eliminate the incapability for extraction of the reference pulse as well as secure the constant position at all times for the output picture image of the device, by detecting the piling position of the color burst signal and then varying the phase of the horizontal synchronous signal.
CONSTITUTION: Color TV signal 22 is applied to synchronous signal isolator circuit 24 and burst signal gate circuit 26, and the horizontal synchronous signal isolated through circuit 24 is applied to burst gate pulse generator 28 plus multivibrators MV5 and MV30 each. The output of generator 28 drives circuit 26 to obtain color burst signal 9, and signal 9 is supplied to level detector 32 to obtain detection signal 34. Signal 34, reference subcarrier signal 40 and output 35 of MV5 are applied to phase difference detector 36 to obtain output signal 37. Output 37 is then applied to MV30 to give modulation to output pulse 42. Then output 42 is applied to reference pulse extractor 11 to obtain the referenc pulse. At the same time, reference horizontal signal 23 is supplied to MV31, and the output 27 is applied to reference pulse extractor 12 to obtain reference pulse 29 of the reference side.
COPYRIGHT: (C)1980,JPO&Japio
JP1618779A 1979-02-16 1979-02-16 Reference pulse extracting system Pending JPS55109093A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1618779A JPS55109093A (en) 1979-02-16 1979-02-16 Reference pulse extracting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1618779A JPS55109093A (en) 1979-02-16 1979-02-16 Reference pulse extracting system

Publications (1)

Publication Number Publication Date
JPS55109093A true JPS55109093A (en) 1980-08-21

Family

ID=11909505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1618779A Pending JPS55109093A (en) 1979-02-16 1979-02-16 Reference pulse extracting system

Country Status (1)

Country Link
JP (1) JPS55109093A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57160286A (en) * 1981-03-28 1982-10-02 Sony Corp Time base correcting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57160286A (en) * 1981-03-28 1982-10-02 Sony Corp Time base correcting device
JPH0211074B2 (en) * 1981-03-28 1990-03-12 Sony Corp

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