JPS56129472A - Copy facsimile system using opitcal fiber - Google Patents

Copy facsimile system using opitcal fiber

Info

Publication number
JPS56129472A
JPS56129472A JP3369580A JP3369580A JPS56129472A JP S56129472 A JPS56129472 A JP S56129472A JP 3369580 A JP3369580 A JP 3369580A JP 3369580 A JP3369580 A JP 3369580A JP S56129472 A JPS56129472 A JP S56129472A
Authority
JP
Japan
Prior art keywords
transmission
optical fiber
photo
output
light
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
JP3369580A
Other languages
Japanese (ja)
Inventor
Masaaki Mori
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP3369580A priority Critical patent/JPS56129472A/en
Publication of JPS56129472A publication Critical patent/JPS56129472A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof

Landscapes

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

Abstract

PURPOSE:To enable a high speed transmission and to simplify a transmission network, by making signal transmission between each input/output terminal device and converter with a wavelength multiplex system using optical fiber. CONSTITUTION:The input/output terminal device 1 is connected to the exchanger 2 at the center via the photo synthesizer 5, optical fiber 6, and photo brancher 7. The output light of light source S1-S5 according to the read-in signal of the device 1 has wave elngths lambda1-lambda5 respectively, and they are synthesized via coherent film filters F1-F5 using dielectric zone multi-layer film and transmitted to the center via the fiber 6. At the center, the received light is branched into wave lengths lambda1-lambda5 at the filters F1-F5 the same as those at the transmission side, and each output is incident to the photo detectors R1-R5 and the detected signal is fed to the converter 2. Thus, with the wavelength of light sources S1-S5 and the band of F1-F5 make bidirectional wavelength multiplex transmission by one optical fiber.
JP3369580A 1980-03-17 1980-03-17 Copy facsimile system using opitcal fiber Pending JPS56129472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3369580A JPS56129472A (en) 1980-03-17 1980-03-17 Copy facsimile system using opitcal fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3369580A JPS56129472A (en) 1980-03-17 1980-03-17 Copy facsimile system using opitcal fiber

Publications (1)

Publication Number Publication Date
JPS56129472A true JPS56129472A (en) 1981-10-09

Family

ID=12393549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3369580A Pending JPS56129472A (en) 1980-03-17 1980-03-17 Copy facsimile system using opitcal fiber

Country Status (1)

Country Link
JP (1) JPS56129472A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63212262A (en) * 1987-02-28 1988-09-05 Ricoh Co Ltd Picture forming system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63212262A (en) * 1987-02-28 1988-09-05 Ricoh Co Ltd Picture forming system

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