JPS57171850A - Optical communication system for vehicle - Google Patents

Optical communication system for vehicle

Info

Publication number
JPS57171850A
JPS57171850A JP56056629A JP5662981A JPS57171850A JP S57171850 A JPS57171850 A JP S57171850A JP 56056629 A JP56056629 A JP 56056629A JP 5662981 A JP5662981 A JP 5662981A JP S57171850 A JPS57171850 A JP S57171850A
Authority
JP
Japan
Prior art keywords
level
pulse
output
surge
gate
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
JP56056629A
Other languages
Japanese (ja)
Inventor
Atsumi Hashimoto
Kiyoshi Yoshida
Osamu Koga
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 JP56056629A priority Critical patent/JPS57171850A/en
Publication of JPS57171850A publication Critical patent/JPS57171850A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/125—Discriminating pulses
    • H03K5/1252—Suppression or limitation of noise or interference

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (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 pulses, by maintaining an H-level output for a fixed time from the rise of the clock pulse. CONSTITUTION:A surge pulse PN1 mixed under an H-level condition of a clock pulse alpha acts to switch the charging of a condenser C1 to the discharging, but, since the time is short, the voltage at a connecting point (b) is higher than a threshold voltage Vth and, because the feedback input of an OR gate 8 is maintained at an H level, the surge pulse PN1 does not appear in an output (c). When a surge pulse PN3 is mixed during a quiescent period in which the output of the OR gate 8 is fallen to an L level, a noise, in which the surge pulse PN3 is clipped to the output of the OR gate 8 at the H level, is generated, and the output of an OR gate 3 is brought up to the H level through the condenser C1 and a resistance R3. However, since the rise by the surge pulse PN3 is connected to the next clock pulse, influences by the surge pulse can be ignored practically.
JP56056629A 1981-04-15 1981-04-15 Optical communication system for vehicle Pending JPS57171850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56056629A JPS57171850A (en) 1981-04-15 1981-04-15 Optical communication system for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56056629A JPS57171850A (en) 1981-04-15 1981-04-15 Optical communication system for vehicle

Publications (1)

Publication Number Publication Date
JPS57171850A true JPS57171850A (en) 1982-10-22

Family

ID=13032591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56056629A Pending JPS57171850A (en) 1981-04-15 1981-04-15 Optical communication system for vehicle

Country Status (1)

Country Link
JP (1) JPS57171850A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59186451A (en) * 1983-04-08 1984-10-23 Fujitsu Ltd Data transmission system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5232212B1 (en) * 1971-03-01 1977-08-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5232212B1 (en) * 1971-03-01 1977-08-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59186451A (en) * 1983-04-08 1984-10-23 Fujitsu Ltd Data transmission system

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