FR1382332A - Electronic security memory - Google Patents

Electronic security memory

Info

Publication number
FR1382332A
FR1382332A FR953154A FR953154A FR1382332A FR 1382332 A FR1382332 A FR 1382332A FR 953154 A FR953154 A FR 953154A FR 953154 A FR953154 A FR 953154A FR 1382332 A FR1382332 A FR 1382332A
Authority
FR
France
Prior art keywords
electronic security
security memory
memory
electronic
security
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.)
Expired
Application number
FR953154A
Other languages
French (fr)
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.)
Compagnie des Freins et Signaux Westinghouse SA
Original Assignee
Compagnie des Freins et Signaux Westinghouse 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 Compagnie des Freins et Signaux Westinghouse SA filed Critical Compagnie des Freins et Signaux Westinghouse SA
Priority to FR953154A priority Critical patent/FR1382332A/en
Priority to BE655341D priority patent/BE655341A/xx
Priority to DE1964C0034300 priority patent/DE1291786B/en
Application granted granted Critical
Publication of FR1382332A publication Critical patent/FR1382332A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/08—Operation of gates; Combined operation of gates and signals
    • B61L29/18—Operation by approaching rail vehicle or train
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/282—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable
    • H03K3/2823—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable using two active transistor of the same conductivity type
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/286—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
FR953154A 1963-11-08 1963-11-08 Electronic security memory Expired FR1382332A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR953154A FR1382332A (en) 1963-11-08 1963-11-08 Electronic security memory
BE655341D BE655341A (en) 1963-11-08 1964-11-05
DE1964C0034300 DE1291786B (en) 1963-11-08 1964-11-06 Electronic safety storage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR953154A FR1382332A (en) 1963-11-08 1963-11-08 Electronic security memory

Publications (1)

Publication Number Publication Date
FR1382332A true FR1382332A (en) 1964-12-18

Family

ID=8816137

Family Applications (1)

Application Number Title Priority Date Filing Date
FR953154A Expired FR1382332A (en) 1963-11-08 1963-11-08 Electronic security memory

Country Status (3)

Country Link
BE (1) BE655341A (en)
DE (1) DE1291786B (en)
FR (1) FR1382332A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2723239B1 (en) * 1994-07-26 1996-09-06 Geay Michel ROAD SAFETY DEVICE FOR STOPPING A VEHICLE GOING AGAINST DIRECTION ON A SINGLE-WAY ROAD

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1050376B (en) * 1959-02-12 Siemens Schuckertwerke Aktiengesellschaft Berlin und Erlangen Devices on bistable semiconductor flip-flops as memory elements in control and regulation systems to avoid Fch commands after a power failure
DE921094C (en) * 1943-01-26 1954-12-09 Alfred Dr-Ing Bigalke Electron tube relay with oscillation circuit to achieve a sudden useful current through pulse control
NL245105A (en) * 1958-11-07 1900-01-01

Also Published As

Publication number Publication date
DE1291786B (en) 1969-04-03
BE655341A (en) 1965-03-01

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