JPS5732188A - Pcm picture transmission system - Google Patents

Pcm picture transmission system

Info

Publication number
JPS5732188A
JPS5732188A JP10710080A JP10710080A JPS5732188A JP S5732188 A JPS5732188 A JP S5732188A JP 10710080 A JP10710080 A JP 10710080A JP 10710080 A JP10710080 A JP 10710080A JP S5732188 A JPS5732188 A JP S5732188A
Authority
JP
Japan
Prior art keywords
circuit
signal
pcm
output
synchronizing
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
JP10710080A
Other languages
Japanese (ja)
Inventor
Kiyoshi Kubo
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 JP10710080A priority Critical patent/JPS5732188A/en
Publication of JPS5732188A publication Critical patent/JPS5732188A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation

Landscapes

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

Abstract

PURPOSE:To obtain frame synchronism even when a video signal and an audio signal or a data signal are transmitted on PCM basis, by advantageously considering that a synchronizing signal is held at a constant level during the synchronizing signal period of a video signal. CONSTITUTION:When a PCM picture signal is inputted to an input terminal, a bit-synchronizing circuit 41 outputs clock pulses synchronizing with the PCM picture signal. If the PCM signal has a signal form [0,0,0,0,0,0,0,1], a constant-code detecting circuit 42 generates an output. The output of the circuit 42 is supplied to an integral network 43 to be integrated, and a Schmitt circuit 44 performs waveform shaping. Then, a counter circuit 45 counts the clock pulses from the circuit 41 at rises of the output waveform of the Schmitt circuit 44. Further, a counter circuit 46 which outputs a pulse of the fall of the output of the circuit 45 is provided, and the output of the circuit 46 is supplied to the reset terminal of the circuit 45.
JP10710080A 1980-08-06 1980-08-06 Pcm picture transmission system Pending JPS5732188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10710080A JPS5732188A (en) 1980-08-06 1980-08-06 Pcm picture transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10710080A JPS5732188A (en) 1980-08-06 1980-08-06 Pcm picture transmission system

Publications (1)

Publication Number Publication Date
JPS5732188A true JPS5732188A (en) 1982-02-20

Family

ID=14450454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10710080A Pending JPS5732188A (en) 1980-08-06 1980-08-06 Pcm picture transmission system

Country Status (1)

Country Link
JP (1) JPS5732188A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6262683A (en) * 1985-09-13 1987-03-19 Goro Matsumoto Information transmission equipment using video signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6262683A (en) * 1985-09-13 1987-03-19 Goro Matsumoto Information transmission equipment using video signal

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