JPS51141502A - Light pulse transmission system - Google Patents

Light pulse transmission system

Info

Publication number
JPS51141502A
JPS51141502A JP50065395A JP6539575A JPS51141502A JP S51141502 A JPS51141502 A JP S51141502A JP 50065395 A JP50065395 A JP 50065395A JP 6539575 A JP6539575 A JP 6539575A JP S51141502 A JPS51141502 A JP S51141502A
Authority
JP
Japan
Prior art keywords
transmission system
pulse transmission
light pulse
preamplifier
equalizer
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
JP50065395A
Other languages
Japanese (ja)
Inventor
Yoshitaka Takasaki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP50065395A priority Critical patent/JPS51141502A/en
Publication of JPS51141502A publication Critical patent/JPS51141502A/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)
  • Dc Digital Transmission (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:In a pulse transmission system for converting, e. g., ''1'' into ''11'' or ''00'' and ''0'' into ''10'' or ''01'', any equalizer is made unnecessary, and simultaneously, the dynamic range of a preamplifier is allowed to be narrow, thereby to enhance the performance of a light receiver and to simplify circuitry.
JP50065395A 1975-06-02 1975-06-02 Light pulse transmission system Pending JPS51141502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50065395A JPS51141502A (en) 1975-06-02 1975-06-02 Light pulse transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50065395A JPS51141502A (en) 1975-06-02 1975-06-02 Light pulse transmission system

Publications (1)

Publication Number Publication Date
JPS51141502A true JPS51141502A (en) 1976-12-06

Family

ID=13285766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50065395A Pending JPS51141502A (en) 1975-06-02 1975-06-02 Light pulse transmission system

Country Status (1)

Country Link
JP (1) JPS51141502A (en)

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Legal Events

Date Code Title Description
A313 Final decision of rejection without a dissenting response from the applicant

Effective date: 20040426

Free format text: JAPANESE INTERMEDIATE CODE: A313

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20040525