JPS57171852A - Optical communication system for vehicle - Google Patents

Optical communication system for vehicle

Info

Publication number
JPS57171852A
JPS57171852A JP56056631A JP5663181A JPS57171852A JP S57171852 A JPS57171852 A JP S57171852A JP 56056631 A JP56056631 A JP 56056631A JP 5663181 A JP5663181 A JP 5663181A JP S57171852 A JPS57171852 A JP S57171852A
Authority
JP
Japan
Prior art keywords
data
input terminals
synchronizing pulse
pulse
shift register
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
JP56056631A
Other languages
Japanese (ja)
Other versions
JPS6254258B2 (en
Inventor
Atsumi Hashimoto
Kiyoshi Yoshida
Katsumi Ebara
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.)
NAIRUSU BUHIN KK
Niles Parts Co Ltd
Nissan Motor Co Ltd
Original Assignee
NAIRUSU BUHIN KK
Niles Parts Co Ltd
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 NAIRUSU BUHIN KK, Niles Parts Co Ltd, Nissan Motor Co Ltd filed Critical NAIRUSU BUHIN KK
Priority to JP56056631A priority Critical patent/JPS57171852A/en
Publication of JPS57171852A publication Critical patent/JPS57171852A/en
Publication of JPS6254258B2 publication Critical patent/JPS6254258B2/ja
Granted 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
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/08—Modifications for reducing interference; Modifications for reducing effects due to line faults ; Receiver end arrangements for detecting or overcoming line faults

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Selective Calling Equipment (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To prevent malfunctions of the system caused by surge voltages, by transmitting pulse signals in which low and high levels are combined between transmission pulses, and inhibiting delivery of the driving command signal to the load when low-level signals are not discriminated at the receiving side. CONSTITUTION:A transmission unit 1 has a shift register 6 which outputs parallel input data after converting them into series data, and operation switches (a- d) are connected to input terminals P1, P3, P5, and P7 of the shift register 6. Data input is performed through the input terminals. On the other hand, three input terminals P2, P6, and P8 of the other input terminals P2, P4, P6, and P8 of the shift register 6 are set to an H level and the P4 is set an L level, and then, a synchronizing pulse is constituted by 1011. A receiving unit 3 receives data pulses combined with the synchronizing pulse, inputs the synchronizing pulse outputted to output terminals Q1, Q3, Q5, and Q7 of a shaft register 14 into a discriminating circuit 16, and commands a latching circuit 15 to latch the data pulse when a prescribed synchronizing pulse is obtained.
JP56056631A 1981-04-15 1981-04-15 Optical communication system for vehicle Granted JPS57171852A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56056631A JPS57171852A (en) 1981-04-15 1981-04-15 Optical communication system for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56056631A JPS57171852A (en) 1981-04-15 1981-04-15 Optical communication system for vehicle

Publications (2)

Publication Number Publication Date
JPS57171852A true JPS57171852A (en) 1982-10-22
JPS6254258B2 JPS6254258B2 (en) 1987-11-13

Family

ID=13032650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56056631A Granted JPS57171852A (en) 1981-04-15 1981-04-15 Optical communication system for vehicle

Country Status (1)

Country Link
JP (1) JPS57171852A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS619040A (en) * 1984-06-22 1986-01-16 Hitachi Ltd Transmission circuit of control signal in equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0517402Y2 (en) * 1985-09-27 1993-05-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS619040A (en) * 1984-06-22 1986-01-16 Hitachi Ltd Transmission circuit of control signal in equipment

Also Published As

Publication number Publication date
JPS6254258B2 (en) 1987-11-13

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