JPS54108524A - Color synchronizer of beam index type picture receiver - Google Patents

Color synchronizer of beam index type picture receiver

Info

Publication number
JPS54108524A
JPS54108524A JP1560478A JP1560478A JPS54108524A JP S54108524 A JPS54108524 A JP S54108524A JP 1560478 A JP1560478 A JP 1560478A JP 1560478 A JP1560478 A JP 1560478A JP S54108524 A JPS54108524 A JP S54108524A
Authority
JP
Japan
Prior art keywords
circuit
index
input signal
pulse
reset pulse
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
JP1560478A
Other languages
Japanese (ja)
Other versions
JPS588195B2 (en
Inventor
Masaharu Murakami
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP53015604A priority Critical patent/JPS588195B2/en
Publication of JPS54108524A publication Critical patent/JPS54108524A/en
Publication of JPS588195B2 publication Critical patent/JPS588195B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE: To attain stable color synchronization with invariably-definite gate operation, by counting an index signal before a process and by starting a divider circuit with a reset pulse obtained through the counting.
CONSTITUTION: Sub-counter circuit 52 starts by reset pulse (G) from multivibrator 51 to count an index signal, the output of amplitude limiter circuit 46, thereby generating reset pulse (G") which allows 1/3 divider circuit 48 to start. Even if the timing of pulse (G") varies with the phase of the input signal of circuit 52, the phase of input signal 4(fi)D[fi; index frequency] of circuit 48 since depending upon the input signal of index-signal processing circuit 47 varies in the same direction, so that the start will not become out of timing. The accuracy of pulse (G) allowing circuit 52 to start is Tb'=1/fi=140m sec., which provides room four times as much as cnoventional one, so that stable synchronization can be attained.
COPYRIGHT: (C)1979,JPO&Japio
JP53015604A 1978-02-14 1978-02-14 Color synchronization device for beam index type receiver Expired JPS588195B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53015604A JPS588195B2 (en) 1978-02-14 1978-02-14 Color synchronization device for beam index type receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53015604A JPS588195B2 (en) 1978-02-14 1978-02-14 Color synchronization device for beam index type receiver

Publications (2)

Publication Number Publication Date
JPS54108524A true JPS54108524A (en) 1979-08-25
JPS588195B2 JPS588195B2 (en) 1983-02-15

Family

ID=11893320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53015604A Expired JPS588195B2 (en) 1978-02-14 1978-02-14 Color synchronization device for beam index type receiver

Country Status (1)

Country Link
JP (1) JPS588195B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5640379A (en) * 1979-09-12 1981-04-16 Sony Corp Beam index type color television receiver

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147239A (en) * 1974-05-15 1975-11-26
JPS5168131A (en) * 1974-12-09 1976-06-12 Matsushita Electric Ind Co Ltd INDETSUKUSUSHINGOSHORIKAIRO

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147239A (en) * 1974-05-15 1975-11-26
JPS5168131A (en) * 1974-12-09 1976-06-12 Matsushita Electric Ind Co Ltd INDETSUKUSUSHINGOSHORIKAIRO

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5640379A (en) * 1979-09-12 1981-04-16 Sony Corp Beam index type color television receiver

Also Published As

Publication number Publication date
JPS588195B2 (en) 1983-02-15

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