FR1281318A - Mémoire électronique de sécurité susceptible d'être temporisée - Google Patents

Mémoire électronique de sécurité susceptible d'être temporisée

Info

Publication number
FR1281318A
FR1281318A FR845162A FR845162A FR1281318A FR 1281318 A FR1281318 A FR 1281318A FR 845162 A FR845162 A FR 845162A FR 845162 A FR845162 A FR 845162A FR 1281318 A FR1281318 A FR 1281318A
Authority
FR
France
Prior art keywords
timed
memory capable
electronic security
security memory
electronic
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
FR845162A
Other languages
English (en)
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 FR845162A priority Critical patent/FR1281318A/fr
Priority to GB41888/61A priority patent/GB1000275A/en
Priority to US154642A priority patent/US3208010A/en
Application granted granted Critical
Publication of FR1281318A publication Critical patent/FR1281318A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/18—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for introducing delay in the operation of the relay
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/04—Indicating or recording train identities
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1296—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the feedback circuit comprising a transformer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Dc-Dc Converters (AREA)
  • Transmitters (AREA)
FR845162A 1960-11-28 1960-11-28 Mémoire électronique de sécurité susceptible d'être temporisée Expired FR1281318A (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR845162A FR1281318A (fr) 1960-11-28 1960-11-28 Mémoire électronique de sécurité susceptible d'être temporisée
GB41888/61A GB1000275A (en) 1960-11-28 1961-11-23 Electronic time delay switch device
US154642A US3208010A (en) 1960-11-28 1961-11-24 Start-stop oscillator having rectifier to obtain bias from the output voltage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR845162A FR1281318A (fr) 1960-11-28 1960-11-28 Mémoire électronique de sécurité susceptible d'être temporisée

Publications (1)

Publication Number Publication Date
FR1281318A true FR1281318A (fr) 1962-01-12

Family

ID=8743521

Family Applications (1)

Application Number Title Priority Date Filing Date
FR845162A Expired FR1281318A (fr) 1960-11-28 1960-11-28 Mémoire électronique de sécurité susceptible d'être temporisée

Country Status (3)

Country Link
US (1) US3208010A (fr)
FR (1) FR1281318A (fr)
GB (1) GB1000275A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029631A1 (fr) * 1979-11-21 1981-06-03 Societe D'optique, De Mecanique D'electricite Et De Radio O.M.E.R.A. - S.E.G.I.D. Mémoire électronique de sécurité utilisable en signalisation ferroviaire
US6390299B1 (en) 2000-03-03 2002-05-21 Westvaco Corp. Paperboard carrier for prepared food

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109292561B (zh) * 2017-07-25 2020-11-17 江苏科技大学 一种基于刷卡机开门并呼叫电梯和照明的电路及实现方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2318061A (en) * 1941-05-29 1943-05-04 Westinghouse Electric & Mfg Co Automatic bias circuits
US2454845A (en) * 1943-05-04 1948-11-30 Fed Telephone & Radio Corp High-frequency oscillator circuit for induction heating apparatus
US2676251A (en) * 1950-12-01 1954-04-20 Hughes Tool Co Bistable blocking oscillator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029631A1 (fr) * 1979-11-21 1981-06-03 Societe D'optique, De Mecanique D'electricite Et De Radio O.M.E.R.A. - S.E.G.I.D. Mémoire électronique de sécurité utilisable en signalisation ferroviaire
US4376269A (en) 1979-11-21 1983-03-08 U.S. Philips Corporation Electronic security memory including on-off controlled oscillator
US6390299B1 (en) 2000-03-03 2002-05-21 Westvaco Corp. Paperboard carrier for prepared food

Also Published As

Publication number Publication date
US3208010A (en) 1965-09-21
GB1000275A (en) 1965-08-04

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