IT8119577A0 - Decodifcatore di sicurezza della frequenza di un segnale di ingresso. - Google Patents

Decodifcatore di sicurezza della frequenza di un segnale di ingresso.

Info

Publication number
IT8119577A0
IT8119577A0 IT8119577A IT1957781A IT8119577A0 IT 8119577 A0 IT8119577 A0 IT 8119577A0 IT 8119577 A IT8119577 A IT 8119577A IT 1957781 A IT1957781 A IT 1957781A IT 8119577 A0 IT8119577 A0 IT 8119577A0
Authority
IT
Italy
Prior art keywords
decoder
safety
frequency
input signal
input
Prior art date
Application number
IT8119577A
Other languages
English (en)
Other versions
IT1135350B (it
Inventor
Henry C Sibley
Original Assignee
Gen Signal Corp
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 Gen Signal Corp filed Critical Gen Signal Corp
Publication of IT8119577A0 publication Critical patent/IT8119577A0/it
Application granted granted Critical
Publication of IT1135350B publication Critical patent/IT1135350B/it

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/16—Electric signal transmission systems in which transmission is by pulses
    • G08C19/26—Electric signal transmission systems in which transmission is by pulses by varying pulse repetition frequency
IT19577/81A 1980-02-08 1981-02-06 Decodificatore di sicurezza della frequenza di un segnale di ingresso IT1135350B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/119,655 US4307463A (en) 1980-02-08 1980-02-08 Vital rate decoder

Publications (2)

Publication Number Publication Date
IT8119577A0 true IT8119577A0 (it) 1981-02-06
IT1135350B IT1135350B (it) 1986-08-20

Family

ID=22385571

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19577/81A IT1135350B (it) 1980-02-08 1981-02-06 Decodificatore di sicurezza della frequenza di un segnale di ingresso

Country Status (8)

Country Link
US (1) US4307463A (it)
KR (1) KR830005772A (it)
CA (1) CA1148623A (it)
ES (1) ES499170A0 (it)
GB (1) GB2069204B (it)
IT (1) IT1135350B (it)
NL (1) NL8100104A (it)
ZA (1) ZA807008B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472789A (en) * 1979-11-09 1984-09-18 General Signal Corporation Vital timer
US4471486A (en) * 1981-06-15 1984-09-11 General Signal Corporation Vital communication system for transmitting multiple messages
US4468768A (en) * 1981-10-26 1984-08-28 Owens-Corning Fiberglas Corporation Self-testing computer monitor
US4567560A (en) * 1983-09-09 1986-01-28 Westinghouse Electric Corp. Multiprocessor supervisory control for an elevator system
US4611291A (en) * 1983-11-10 1986-09-09 General Signal Corp. Vital interface system for railway signalling
US4553200A (en) * 1983-11-10 1985-11-12 General Signal Corporation Modular output driver for vital processor systems
DE3522418A1 (de) * 1985-06-22 1987-01-02 Standard Elektrik Lorenz Ag Einrichtung zur meldung des belegungszustandes von gleisabschnitten im bereich eines stellwerks
US4732355A (en) * 1986-01-09 1988-03-22 General Signal Corporation Rate code decoding system
US4734881A (en) * 1986-02-18 1988-03-29 Minnesota Mining And Manufacturing Company Microprocessor controlled signal discrimination circuitry
US4740972A (en) * 1986-03-24 1988-04-26 General Signal Corporation Vital processing system adapted for the continuous verification of vital outputs from a railway signaling and control system
NL8800199A (nl) * 1987-02-09 1988-09-01 Gen Signal Corp Digitale vitale snelheidsdecodeur.
US4949273A (en) * 1988-11-04 1990-08-14 General Signal Corporation Vital processing system including a vital power controller with forgiveness feature
US5048064A (en) * 1988-11-04 1991-09-10 General Signal Corporation Vital rate decoder
US5050823A (en) * 1989-11-30 1991-09-24 General Signal Corporation Radio-based railway switch control system
WO1992010032A1 (en) * 1990-11-26 1992-06-11 Adaptive Solutions, Inc. Temperature-sensing control system and method for integrated circuits
US5181679A (en) * 1991-08-22 1993-01-26 General Railway Signal Corporation Railway train speed restriction apparatus
US5577053A (en) * 1994-09-14 1996-11-19 Ericsson Inc. Method and apparatus for decoder optimization
US5944845A (en) * 1997-06-26 1999-08-31 Micron Technology, Inc. Circuit and method to prevent inadvertent test mode entry
US6463337B1 (en) 1999-12-20 2002-10-08 Safetran Systems Corporation Railroad vital signal output module with cryptographic safe drive

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2640756C2 (de) * 1976-09-10 1982-11-04 Standard Elektrik Lorenz Ag, 7000 Stuttgart Einrichtung zur gesicherten Datenübertragung bei spurgebundenen Fahrzeugen
US4090173A (en) * 1976-12-17 1978-05-16 General Signal Corporation Vital digital communication system
US4181849A (en) * 1978-01-30 1980-01-01 General Signal Corporation Vital relay driver having controlled response time

Also Published As

Publication number Publication date
US4307463A (en) 1981-12-22
IT1135350B (it) 1986-08-20
KR830005772A (ko) 1983-09-09
GB2069204B (en) 1983-05-25
GB2069204A (en) 1981-08-19
NL8100104A (nl) 1981-09-01
CA1148623A (en) 1983-06-21
ES8202663A1 (es) 1982-02-01
ZA807008B (en) 1981-11-25
ES499170A0 (es) 1982-02-01

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Legal Events

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Effective date: 19950227