JPS56112187A - Picture storage and transmission system - Google Patents

Picture storage and transmission system

Info

Publication number
JPS56112187A
JPS56112187A JP1520180A JP1520180A JPS56112187A JP S56112187 A JPS56112187 A JP S56112187A JP 1520180 A JP1520180 A JP 1520180A JP 1520180 A JP1520180 A JP 1520180A JP S56112187 A JPS56112187 A JP S56112187A
Authority
JP
Japan
Prior art keywords
signal
picture
color burst
synchronous
color
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
JP1520180A
Other languages
Japanese (ja)
Inventor
Junichi Fujino
Hideto Miyazaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1520180A priority Critical patent/JPS56112187A/en
Publication of JPS56112187A publication Critical patent/JPS56112187A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/04—Colour television systems using pulse code modulation
    • H04N11/042—Codec means

Landscapes

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

Abstract

PURPOSE:To save memory capacity and shorten transmission time by giving a fixed corresponding relation to a picture signal and the address of memory by means of a picture position standard signal (synchronous signal) and color phase standard signal (color burst signal) and transmitting and storing only the stated area of the picture signal. CONSTITUTION:A sampling signal generator comprises color burst gate 5 which enters a picture signal from picture signal input terminal 4, color synchronous circuit 6, PLL circuit 7, and quarter dividing circuit 8. Then a sampling signal which is phase-synchronized with the color burst signal with the frequency 4 times larger than that of color burst signal is outputted to picture signal input terminal 4. A clock generated from clock generator 11 whose frequency is integer times larger than that of color burst signal and which is phase-synchronized with the color burst signal is used for reading of a picture signal in picture memory 12 and composite circuit 13 composes a signal read out from memory 12 and a synchronous signal on the basis of the synchronous signal generated from frequency signal generator 10. Then output terminal 14 outputs the original synchronous signal and the color burst signal.
JP1520180A 1980-02-08 1980-02-08 Picture storage and transmission system Pending JPS56112187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1520180A JPS56112187A (en) 1980-02-08 1980-02-08 Picture storage and transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1520180A JPS56112187A (en) 1980-02-08 1980-02-08 Picture storage and transmission system

Publications (1)

Publication Number Publication Date
JPS56112187A true JPS56112187A (en) 1981-09-04

Family

ID=11882246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1520180A Pending JPS56112187A (en) 1980-02-08 1980-02-08 Picture storage and transmission system

Country Status (1)

Country Link
JP (1) JPS56112187A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51129126A (en) * 1975-04-05 1976-11-10 Nec Corp Image signal coding system
JPS52137208A (en) * 1976-05-13 1977-11-16 Nippon Hoso Kyokai <Nhk> Digital record reproduction system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51129126A (en) * 1975-04-05 1976-11-10 Nec Corp Image signal coding system
JPS52137208A (en) * 1976-05-13 1977-11-16 Nippon Hoso Kyokai <Nhk> Digital record reproduction system

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