JPS55162680A - Gate pulse generator - Google Patents

Gate pulse generator

Info

Publication number
JPS55162680A
JPS55162680A JP7152379A JP7152379A JPS55162680A JP S55162680 A JPS55162680 A JP S55162680A JP 7152379 A JP7152379 A JP 7152379A JP 7152379 A JP7152379 A JP 7152379A JP S55162680 A JPS55162680 A JP S55162680A
Authority
JP
Japan
Prior art keywords
signal
gate pulse
fed
counter
output 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.)
Granted
Application number
JP7152379A
Other languages
Japanese (ja)
Other versions
JPS6131674B2 (en
Inventor
Chika Fukuda
Masayoshi Hirashima
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 JP7152379A priority Critical patent/JPS55162680A/en
Publication of JPS55162680A publication Critical patent/JPS55162680A/en
Publication of JPS6131674B2 publication Critical patent/JPS6131674B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
    • H04N7/035—Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal

Abstract

PURPOSE:To obtain the gate pulse for stable pick up, by providing the means to detect the time corresponding to the interval between the burst signal and the clock run in (CRI) signal. CONSTITUTION:The digital signal having double frequency of color subcarrier fed to the input terminal 11 is fed to the counter 13 as clock signal. Horizontal synchronizing signal is fed to the input terminal 10. Then, the counter 13 starts the count by taking the front ridge of the horizontal syncrhonizing signal as the start point. This output is fed to the gate pulse generating circuit 14. At the gate pulse generating circuit 14, when the output signal of the counter 13 is the first value preset, the output signal is brought from low to high level and when the second value, the output signal is changed from high to low level, allowing to produce the gate pulse.
JP7152379A 1979-06-06 1979-06-06 Gate pulse generator Granted JPS55162680A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7152379A JPS55162680A (en) 1979-06-06 1979-06-06 Gate pulse generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7152379A JPS55162680A (en) 1979-06-06 1979-06-06 Gate pulse generator

Publications (2)

Publication Number Publication Date
JPS55162680A true JPS55162680A (en) 1980-12-18
JPS6131674B2 JPS6131674B2 (en) 1986-07-22

Family

ID=13463163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7152379A Granted JPS55162680A (en) 1979-06-06 1979-06-06 Gate pulse generator

Country Status (1)

Country Link
JP (1) JPS55162680A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594282A (en) * 1982-06-29 1984-01-11 Fujitsu General Ltd Character signal extracting circuit in tevelision receiver

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5123024A (en) * 1974-08-21 1976-02-24 Tokyo Shibaura Electric Co PARUSUKENS HUTSUSOCHI
JPS5279726A (en) * 1975-12-26 1977-07-05 Sony Corp Television receiver
JPS53144217A (en) * 1977-05-20 1978-12-15 Matsushita Electric Ind Co Ltd Smapling clock reproducer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5123024A (en) * 1974-08-21 1976-02-24 Tokyo Shibaura Electric Co PARUSUKENS HUTSUSOCHI
JPS5279726A (en) * 1975-12-26 1977-07-05 Sony Corp Television receiver
JPS53144217A (en) * 1977-05-20 1978-12-15 Matsushita Electric Ind Co Ltd Smapling clock reproducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594282A (en) * 1982-06-29 1984-01-11 Fujitsu General Ltd Character signal extracting circuit in tevelision receiver
JPH0221717B2 (en) * 1982-06-29 1990-05-15 Fujitsu General Ltd

Also Published As

Publication number Publication date
JPS6131674B2 (en) 1986-07-22

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