FR2324169A1 - Circuit logique de securite, etablissant une condition de compatibilite - Google Patents

Circuit logique de securite, etablissant une condition de compatibilite

Info

Publication number
FR2324169A1
FR2324169A1 FR7534754A FR7534754A FR2324169A1 FR 2324169 A1 FR2324169 A1 FR 2324169A1 FR 7534754 A FR7534754 A FR 7534754A FR 7534754 A FR7534754 A FR 7534754A FR 2324169 A1 FR2324169 A1 FR 2324169A1
Authority
FR
France
Prior art keywords
phototransistors
electro
optical
input
light emitting
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
FR7534754A
Other languages
English (en)
French (fr)
Other versions
FR2324169B1 (cs
Inventor
Jacques Dutilloeil
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.)
Umicore NV SA
Original Assignee
ACEC SA
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 ACEC SA filed Critical ACEC SA
Publication of FR2324169A1 publication Critical patent/FR2324169A1/fr
Application granted granted Critical
Publication of FR2324169B1 publication Critical patent/FR2324169B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/03—Arrangements for fault recovery
    • H04B10/032—Arrangements for fault recovery using working and protection systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/003—Modifications for increasing the reliability for protection
    • H03K19/00392—Modifications for increasing the reliability for protection by circuit redundancy
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/14—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
FR7534754A 1975-09-11 1975-11-14 Circuit logique de securite, etablissant une condition de compatibilite Granted FR2324169A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE1006876A BE833287A (fr) 1975-09-11 1975-09-11 Circuit logique de securite, etablissement une condition de compatibilite

Publications (2)

Publication Number Publication Date
FR2324169A1 true FR2324169A1 (fr) 1977-04-08
FR2324169B1 FR2324169B1 (cs) 1979-09-21

Family

ID=3862822

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7534754A Granted FR2324169A1 (fr) 1975-09-11 1975-11-14 Circuit logique de securite, etablissant une condition de compatibilite

Country Status (3)

Country Link
BE (1) BE833287A (cs)
DE (1) DE2640889A1 (cs)
FR (1) FR2324169A1 (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132623A1 (de) * 1981-08-18 1983-03-03 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur realisierung einer logischen operation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
BE833287A (fr) 1976-03-11
FR2324169B1 (cs) 1979-09-21
DE2640889A1 (de) 1977-03-24

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Legal Events

Date Code Title Description
ST Notification of lapse