JPS5232204A - Light pcm communication system - Google Patents

Light pcm communication system

Info

Publication number
JPS5232204A
JPS5232204A JP50108717A JP10871775A JPS5232204A JP S5232204 A JPS5232204 A JP S5232204A JP 50108717 A JP50108717 A JP 50108717A JP 10871775 A JP10871775 A JP 10871775A JP S5232204 A JPS5232204 A JP S5232204A
Authority
JP
Japan
Prior art keywords
light
communication system
pcm communication
pcm
simplify
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
JP50108717A
Other languages
Japanese (ja)
Inventor
Yasuo Nagai
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP50108717A priority Critical patent/JPS5232204A/en
Publication of JPS5232204A publication Critical patent/JPS5232204A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Dc Digital Transmission (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To drive the light emitting element by a definite arc rate signal, to simplify the repeater composition to prevent pattern effect and transition vibration, and to make easy discriminating reproduction of received signal.
JP50108717A 1975-09-06 1975-09-06 Light pcm communication system Pending JPS5232204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50108717A JPS5232204A (en) 1975-09-06 1975-09-06 Light pcm communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50108717A JPS5232204A (en) 1975-09-06 1975-09-06 Light pcm communication system

Publications (1)

Publication Number Publication Date
JPS5232204A true JPS5232204A (en) 1977-03-11

Family

ID=14491780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50108717A Pending JPS5232204A (en) 1975-09-06 1975-09-06 Light pcm communication system

Country Status (1)

Country Link
JP (1) JPS5232204A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579153A (en) * 1980-06-19 1982-01-18 Mitsubishi Electric Corp Coding and decodin circuit
JPS5710565A (en) * 1980-06-23 1982-01-20 Oki Electric Ind Co Ltd Control signal system for optical transmission
JPS5710566A (en) * 1980-06-20 1982-01-20 Mitsubishi Electric Corp Decoding circuit
JPS61127236A (en) * 1984-11-26 1986-06-14 Nippon Telegr & Teleph Corp <Ntt> Optical transmission system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579153A (en) * 1980-06-19 1982-01-18 Mitsubishi Electric Corp Coding and decodin circuit
JPS5710566A (en) * 1980-06-20 1982-01-20 Mitsubishi Electric Corp Decoding circuit
JPS6322503B2 (en) * 1980-06-20 1988-05-12 Mitsubishi Electric Corp
JPS5710565A (en) * 1980-06-23 1982-01-20 Oki Electric Ind Co Ltd Control signal system for optical transmission
JPS61127236A (en) * 1984-11-26 1986-06-14 Nippon Telegr & Teleph Corp <Ntt> Optical transmission system

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