JPS55145486A - Information transmitting system - Google Patents

Information transmitting system

Info

Publication number
JPS55145486A
JPS55145486A JP5320179A JP5320179A JPS55145486A JP S55145486 A JPS55145486 A JP S55145486A JP 5320179 A JP5320179 A JP 5320179A JP 5320179 A JP5320179 A JP 5320179A JP S55145486 A JPS55145486 A JP S55145486A
Authority
JP
Japan
Prior art keywords
information
data
coordinates
picture
new
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
JP5320179A
Other languages
Japanese (ja)
Other versions
JPS6243585B2 (en
Inventor
Hiroshi Ogo
Tokuji Kato
Yoshiro Ichimaru
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP5320179A priority Critical patent/JPS55145486A/en
Publication of JPS55145486A publication Critical patent/JPS55145486A/en
Publication of JPS6243585B2 publication Critical patent/JPS6243585B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimiles In General (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE:To realize the narrow-band transmission by extracting the new picture information through the comparison with the memorized picture information and then giving the modulation to the coordinates information of the picture element via the nonsynchronous frequency shift keying system. CONSTITUTION:When the picture information are delivered in sequence from binary circuit 7, only the new picture information is delivered from RAM10 and through new information-extraction circuit 8. And the X/Y coordinates data of the picture element are recorded in sequence to shift register 9 to be read in mu-CPU11 as well as memorized in the RAM. CPU11 transfers the X/Y coordinates of register 9 to parallel-serial converting circuit 12 to convert the parallel data into the serial data. In this case, the X/Y coordinates data are formed with each 11 bits to need 22 bits in all. And one frame features 1/30sec. when the picture elements equivalent to two dots with every field, and thus the communication velocity features 1320 Baud. If the modulation is done via modulator 13 for the data and by the nonsynchronous frequency shift keying system, the modulated wave can be transmitted sufficiently in the band of 3kHz. Thus the blackboard information of three characters or so can be transmitted in one second via the telephone line.
JP5320179A 1979-04-28 1979-04-28 Information transmitting system Granted JPS55145486A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5320179A JPS55145486A (en) 1979-04-28 1979-04-28 Information transmitting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5320179A JPS55145486A (en) 1979-04-28 1979-04-28 Information transmitting system

Publications (2)

Publication Number Publication Date
JPS55145486A true JPS55145486A (en) 1980-11-13
JPS6243585B2 JPS6243585B2 (en) 1987-09-16

Family

ID=12936252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5320179A Granted JPS55145486A (en) 1979-04-28 1979-04-28 Information transmitting system

Country Status (1)

Country Link
JP (1) JPS55145486A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947872A (en) * 1982-09-10 1984-03-17 Toshiba Corp X-ray picture transmitter
US8027059B2 (en) 2006-12-20 2011-09-27 Brother Kogyo Kabushiki Kaisha Image processing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947872A (en) * 1982-09-10 1984-03-17 Toshiba Corp X-ray picture transmitter
US8027059B2 (en) 2006-12-20 2011-09-27 Brother Kogyo Kabushiki Kaisha Image processing device

Also Published As

Publication number Publication date
JPS6243585B2 (en) 1987-09-16

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