JPS5720076A - Transmission system for still picture - Google Patents

Transmission system for still picture

Info

Publication number
JPS5720076A
JPS5720076A JP9486280A JP9486280A JPS5720076A JP S5720076 A JPS5720076 A JP S5720076A JP 9486280 A JP9486280 A JP 9486280A JP 9486280 A JP9486280 A JP 9486280A JP S5720076 A JPS5720076 A JP S5720076A
Authority
JP
Japan
Prior art keywords
picture
horizontal scanning
memory
signal
scanning lines
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
JP9486280A
Other languages
Japanese (ja)
Inventor
Isamu Suzuki
Fujio Iwase
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.)
Anritsu Corp
Original Assignee
Anritsu 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 Anritsu Corp filed Critical Anritsu Corp
Priority to JP9486280A priority Critical patent/JPS5720076A/en
Publication of JPS5720076A publication Critical patent/JPS5720076A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • H04N7/122—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal involving expansion and subsequent compression of a signal segment, e.g. a frame, a line

Landscapes

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

Abstract

PURPOSE:To shorten a transmission time greatly by performing alternate interlaced scanning on horizontal scanning lines at a transmission side and by using preceding horizontal scanning lines at a reception side instead of horizontal scanning lines which were not transmitted owing to the interlaced scanning. CONSTITUTION:At a transmission side, the image of a still picture 1 is picked up 2 and horizontal scanning lines subjected to alternate interlaced scanning are written in a picture memory 3 at a high speed. For this purpose, the contents of the memory 3 are read at a low speed to obtain a time-stretched narrow-band signal, which is FM-modulated by a modulator 5 to transmit the modulated signal through a narrow- band transmission line 6. A receiver 7, on the other hand, receives the transmitted signal and writes a picture signal, obtained by demodulation 8, in a picture memory 9 at a low speed. The contents of this memory 9 are read out at a high speed to obtain a broad-band signal by time compression. In this case, a control circuit 10 reads picture signals of the same horizontal scanning line twice continuously and a monitor picture receiver 11 reproduces them.
JP9486280A 1980-07-10 1980-07-10 Transmission system for still picture Pending JPS5720076A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9486280A JPS5720076A (en) 1980-07-10 1980-07-10 Transmission system for still picture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9486280A JPS5720076A (en) 1980-07-10 1980-07-10 Transmission system for still picture

Publications (1)

Publication Number Publication Date
JPS5720076A true JPS5720076A (en) 1982-02-02

Family

ID=14121837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9486280A Pending JPS5720076A (en) 1980-07-10 1980-07-10 Transmission system for still picture

Country Status (1)

Country Link
JP (1) JPS5720076A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS598942A (en) * 1982-07-09 1984-01-18 株式会社東芝 X-ray image apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53115124A (en) * 1977-03-18 1978-10-07 Ricoh Co Ltd Transmission system for picture information

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53115124A (en) * 1977-03-18 1978-10-07 Ricoh Co Ltd Transmission system for picture information

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS598942A (en) * 1982-07-09 1984-01-18 株式会社東芝 X-ray image apparatus

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