JPS6448590A - Color frame detector - Google Patents

Color frame detector

Info

Publication number
JPS6448590A
JPS6448590A JP62204677A JP20467787A JPS6448590A JP S6448590 A JPS6448590 A JP S6448590A JP 62204677 A JP62204677 A JP 62204677A JP 20467787 A JP20467787 A JP 20467787A JP S6448590 A JPS6448590 A JP S6448590A
Authority
JP
Japan
Prior art keywords
latch
frequency
signal
color frame
output
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
JP62204677A
Other languages
Japanese (ja)
Inventor
Sachio Hiratsuka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62204677A priority Critical patent/JPS6448590A/en
Publication of JPS6448590A publication Critical patent/JPS6448590A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To always stably attain the color frame detection by executing plural detections (latch), generating a resetting signal to invert the output of a frequency-dividing means only when it is discriminated that the detections are erroneous continuously at plural times and impressing it to the frequency- dividing means. CONSTITUTION:A latch 14 is provided so that the output of a latch 11 to latch the phase of a subcarrier can be held even by a next latch point, and further, a latch 15 is provided so as to hold the signal even at the next latch point. Only when the output signal of the latch 11 goes to the high level at plural times continuously, a resetting signal is outputted to a 1/2-frequency-divider 13 from a resetting pulse generator 16. Thus, a correct color frame signal is stably outputted from the 1/2 frequency-divider 13.
JP62204677A 1987-08-18 1987-08-18 Color frame detector Pending JPS6448590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62204677A JPS6448590A (en) 1987-08-18 1987-08-18 Color frame detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62204677A JPS6448590A (en) 1987-08-18 1987-08-18 Color frame detector

Publications (1)

Publication Number Publication Date
JPS6448590A true JPS6448590A (en) 1989-02-23

Family

ID=16494469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62204677A Pending JPS6448590A (en) 1987-08-18 1987-08-18 Color frame detector

Country Status (1)

Country Link
JP (1) JPS6448590A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5989671A (en) * 1989-11-22 1999-11-23 Sharp Kabushiki Kaisha Optical recording medium and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5989671A (en) * 1989-11-22 1999-11-23 Sharp Kabushiki Kaisha Optical recording medium and manufacturing method thereof

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