JPS52140201A - Light signal transmission system - Google Patents

Light signal transmission system

Info

Publication number
JPS52140201A
JPS52140201A JP5651876A JP5651876A JPS52140201A JP S52140201 A JPS52140201 A JP S52140201A JP 5651876 A JP5651876 A JP 5651876A JP 5651876 A JP5651876 A JP 5651876A JP S52140201 A JPS52140201 A JP S52140201A
Authority
JP
Japan
Prior art keywords
light signal
signal transmission
transmission system
modulation
inversing
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
JP5651876A
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 JP5651876A priority Critical patent/JPS52140201A/en
Publication of JPS52140201A publication Critical patent/JPS52140201A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To improve the reception S/N ratio by inversing the polarity of the modulation waveform to lower the pulse concentration prior to modulation of the light signal.
JP5651876A 1976-05-19 1976-05-19 Light signal transmission system Pending JPS52140201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5651876A JPS52140201A (en) 1976-05-19 1976-05-19 Light signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5651876A JPS52140201A (en) 1976-05-19 1976-05-19 Light signal transmission system

Publications (1)

Publication Number Publication Date
JPS52140201A true JPS52140201A (en) 1977-11-22

Family

ID=13029329

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5651876A Pending JPS52140201A (en) 1976-05-19 1976-05-19 Light signal transmission system

Country Status (1)

Country Link
JP (1) JPS52140201A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57203349A (en) * 1981-06-09 1982-12-13 Nec Corp Laser diode driving circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57203349A (en) * 1981-06-09 1982-12-13 Nec Corp Laser diode driving circuit
JPS625541B2 (en) * 1981-06-09 1987-02-05 Nippon Electric Co

Similar Documents

Publication Publication Date Title
CA937679A (en) Device for the transmission of information signals by means of differential pulse code modulation
JPS52140201A (en) Light signal transmission system
JPS5336116A (en) Loop transmission system
JPS52155901A (en) Transmission system for optical fiber
JPS5394813A (en) Signal process system
JPS5372410A (en) Signal transmission system
JPS524210A (en) Flexible disc
JPS53133860A (en) Robbot control system
JPS5345588A (en) Sludge densitometer
IT1055220B (en) COMPLEX FOR THE TRANSMISSION OF INFORMATION SIGNALS THROUGH CODED PULSE MODULATION
JPS53144359A (en) Driving method of electrochromic display body
JPS547954A (en) Display driving system
JPS535915A (en) Am receiver
JPS52129216A (en) Transmitter
JPS5393720A (en) Signal multiplication system
JPS5422104A (en) Transmisson system for start signal
JPS5372411A (en) Signal transmission system
JPS52149152A (en) Ultrasonic pulse transmitting and receiving system
JPS52130512A (en) Pulse transmission system
JPS5282007A (en) Pulse width modulation repeater
JPS5222807A (en) Pulse conducting method
JPS5284908A (en) Signal receiver
JPS5233458A (en) Oscillator
JPS5313389A (en) Radar system
JPS5242011A (en) Signal duplex transmission system