JPS573479A - Synchronizing circuit - Google Patents

Synchronizing circuit

Info

Publication number
JPS573479A
JPS573479A JP7733480A JP7733480A JPS573479A JP S573479 A JPS573479 A JP S573479A JP 7733480 A JP7733480 A JP 7733480A JP 7733480 A JP7733480 A JP 7733480A JP S573479 A JPS573479 A JP S573479A
Authority
JP
Japan
Prior art keywords
signal
data
synchronizing
terminal
period
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
JP7733480A
Other languages
Japanese (ja)
Inventor
Kentaro Odaka
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP7733480A priority Critical patent/JPS573479A/en
Publication of JPS573479A publication Critical patent/JPS573479A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Synchronizing For Television (AREA)
  • Television Systems (AREA)

Abstract

PURPOSE:To enable to have sure synchronism on any video signal, by synchronizing with an identified data synchronizing signal via a horizontal synchronizing signal at the data pausing period and via a window signal at the data period. CONSTITUTION:In transmitting and processing a PCM signal in TV signal, at a data pausing period, a horizontal synchronizing signal is detected at a video synchronizing signal detecting means 4 by using a composite synchronizing signal from a terminal 2 and a control signal from a terminal 5, and an output is made from a terminal 7 via a gate means 6 after a delay of a given time. On the other hand, at a data period, a window signal having a given width in synchronizing with a horizontal synchronizing signal is formed, and it is applied to a gate means 6 after a delay of a given time, and a data synchronizing signal DS is detected by using a data signal from a terminal 1 with a data synchronizing means 3 and it is applied to the gate means 6. Thus, the data synchronizing signal within the width of the window signal is obtained from the terminal 7. Thus, signal processing with high reliability without malfunction is made by distinguishing the synchronism from each period.
JP7733480A 1980-06-09 1980-06-09 Synchronizing circuit Pending JPS573479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7733480A JPS573479A (en) 1980-06-09 1980-06-09 Synchronizing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7733480A JPS573479A (en) 1980-06-09 1980-06-09 Synchronizing circuit

Publications (1)

Publication Number Publication Date
JPS573479A true JPS573479A (en) 1982-01-08

Family

ID=13631020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7733480A Pending JPS573479A (en) 1980-06-09 1980-06-09 Synchronizing circuit

Country Status (1)

Country Link
JP (1) JPS573479A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507687A (en) * 1981-08-28 1985-03-26 Matsushita Electric Industrial Co., Ltd. Horizontal sync pulse control circuit for video tape recorder utilizing pulse code modulation
US4535366A (en) * 1982-02-22 1985-08-13 Discovision Associates Universal video data playback

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49131324A (en) * 1973-04-19 1974-12-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49131324A (en) * 1973-04-19 1974-12-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507687A (en) * 1981-08-28 1985-03-26 Matsushita Electric Industrial Co., Ltd. Horizontal sync pulse control circuit for video tape recorder utilizing pulse code modulation
US4535366A (en) * 1982-02-22 1985-08-13 Discovision Associates Universal video data playback

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