ES311350A1 - Un dispositivo de memoria electronica de seguridad - Google Patents

Un dispositivo de memoria electronica de seguridad

Info

Publication number
ES311350A1
ES311350A1 ES0311350A ES311350A ES311350A1 ES 311350 A1 ES311350 A1 ES 311350A1 ES 0311350 A ES0311350 A ES 0311350A ES 311350 A ES311350 A ES 311350A ES 311350 A1 ES311350 A1 ES 311350A1
Authority
ES
Spain
Prior art keywords
transistor
oscillations
output
input
feedback
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
ES0311350A
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
Publication of ES311350A1 publication Critical patent/ES311350A1/es
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K19/00Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/007Fail-safe circuits
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C11/00Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C14/00Digital stores characterised by arrangements of cells having volatile and non-volatile storage properties for back-up when the power is down
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K19/00Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/003Modifications for increasing the reliability for protection
    • H03K19/00307Modifications for increasing the reliability for protection in bipolar transistor circuits
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K3/00Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/027Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/037Bistable circuits
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K3/00Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/027Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/037Bistable circuits
    • H03K3/0375Bistable circuits provided with means for increasing reliability; for protection; for ensuring a predetermined initial state when the supply voltage has been applied; for storing the actual state when the supply voltage fails

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Air Bags (AREA)
  • Electronic Switches (AREA)
  • Logic Circuits (AREA)
  • Dc-Dc Converters (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Storage Device Security (AREA)
ES0311350A 1964-04-03 1965-04-02 Un dispositivo de memoria electronica de seguridad Expired ES311350A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR969618A FR1398923A (fr) 1964-04-03 1964-04-03 Mémoire électronique de sécurité

Publications (1)

Publication Number Publication Date
ES311350A1 true ES311350A1 (es) 1965-06-01

Family

ID=8826944

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0311350A Expired ES311350A1 (es) 1964-04-03 1965-04-02 Un dispositivo de memoria electronica de seguridad

Country Status (8)

Country Link
US (1) US3428825A (es)
BE (1) BE661482A (es)
CH (1) CH438422A (es)
DE (1) DE1474306A1 (es)
ES (1) ES311350A1 (es)
FR (1) FR1398923A (es)
GB (1) GB1105624A (es)
NL (1) NL6503712A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE786430A (fr) * 1971-07-22 1973-01-18 Westinghouse Electric Corp Circuit electronique de verrouillage
FR2510845A1 (fr) * 1981-07-31 1983-02-04 Omera Segid Circuits logiques de securite utilisables notamment en signalisation ferroviaire et boite de traitement electronique, ou automatisme incorporant au moins un de ces circuits
DE3570963D1 (en) * 1984-03-21 1989-07-13 Siemens Ag Circuit for memorizing dynamic logic signals

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132303A (en) * 1956-12-11 1964-05-05 Telefunken Gmbh Bistable trigger circuit with feedback amplifier
BE563126A (es) * 1956-12-14
US3192484A (en) * 1959-08-17 1965-06-29 Ibm Frequency flip-flop
US3292000A (en) * 1961-06-19 1966-12-13 Gen Electric Ultra high speed parametric digital circuits
CH390312A (de) * 1961-11-24 1965-04-15 Oerlikon Maschf Sicherheitseinrichtung für ein einmännig geführtes Triebfahrzeug
US3193781A (en) * 1962-01-03 1965-07-06 Sperry Rand Corp Oscillator having output frequencies selectable by combinations of bilevel voltage signals
US3187201A (en) * 1962-05-18 1965-06-01 Beckman Instruments Inc One-shot latch
US3223929A (en) * 1963-10-03 1965-12-14 Ampex Binary frequency modulation demodulator

Also Published As

Publication number Publication date
US3428825A (en) 1969-02-18
BE661482A (es) 1965-07-16
GB1105624A (en) 1968-03-06
FR1398923A (fr) 1965-05-14
DE1474306A1 (de) 1969-05-29
NL6503712A (es) 1965-10-04
CH438422A (fr) 1967-06-30

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