BR7907822A - Gerador de codigo eletronico vital e rede geradora de codigo eletronico automatico e isento de falha - Google Patents

Gerador de codigo eletronico vital e rede geradora de codigo eletronico automatico e isento de falha

Info

Publication number
BR7907822A
BR7907822A BR7907822A BR7907822A BR7907822A BR 7907822 A BR7907822 A BR 7907822A BR 7907822 A BR7907822 A BR 7907822A BR 7907822 A BR7907822 A BR 7907822A BR 7907822 A BR7907822 A BR 7907822A
Authority
BR
Brazil
Prior art keywords
code generator
electronic code
fault
free
vital
Prior art date
Application number
BR7907822A
Other languages
English (en)
Inventor
H 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 BR7907822A publication Critical patent/BR7907822A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Safety Devices In Control Systems (AREA)
  • Electronic Switches (AREA)
  • Debugging And Monitoring (AREA)
BR7907822A 1979-01-11 1979-11-30 Gerador de codigo eletronico vital e rede geradora de codigo eletronico automatico e isento de falha BR7907822A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/002,765 US4234870A (en) 1979-01-11 1979-01-11 Vital electronic code generator

Publications (1)

Publication Number Publication Date
BR7907822A true BR7907822A (pt) 1980-09-23

Family

ID=21702396

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7907822A BR7907822A (pt) 1979-01-11 1979-11-30 Gerador de codigo eletronico vital e rede geradora de codigo eletronico automatico e isento de falha

Country Status (8)

Country Link
US (1) US4234870A (pt)
BR (1) BR7907822A (pt)
CA (1) CA1130923A (pt)
ES (1) ES487579A0 (pt)
GB (1) GB2039401B (pt)
IT (1) IT1125648B (pt)
NL (1) NL7908971A (pt)
ZA (1) ZA795791B (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5182543A (en) * 1990-09-12 1993-01-26 Board Of Trustees Operating Michigan State University Miniaturized data communication and identification system
JP3430857B2 (ja) * 1997-05-15 2003-07-28 株式会社日立製作所 列車在線検知システム及び列車在線検知方法
US6463337B1 (en) 1999-12-20 2002-10-08 Safetran Systems Corporation Railroad vital signal output module with cryptographic safe drive
CZ2007694A3 (cs) * 2007-10-08 2009-04-15 Ažd Praha S. R. O. Zpusob kontroly prvního kontrolního relé a druhého kontrolního relé kodéru cyklických kódu pro železnicní zabezpecovací zarízení a kodér cyklických kódu k provádení zpusobu
CN101293527B (zh) * 2007-10-29 2010-09-08 北京佳讯飞鸿电气股份有限公司 防止应答器监测系统对应答器造成干扰的方法及装置
KR20120085810A (ko) * 2009-10-15 2012-08-01 가부시키가이샤 엘이테크 마이크로 컴퓨터 및 그 동작 방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445591A (en) * 1966-01-04 1969-05-20 Dale R Koehler Generator of mathematically random entities
US3646518A (en) * 1970-05-05 1972-02-29 Bell Telephone Labor Inc Feedback error control system
FR2192424B1 (pt) * 1972-07-10 1974-10-25 Cit Alcatel
US3885228A (en) * 1973-06-05 1975-05-20 Martin J Katz Fail-safe electronic encoder for selectively operating railway signal indicator
US4107253A (en) * 1976-12-01 1978-08-15 U.S. Philips Corporation Safety and test device in a railway signalling system

Also Published As

Publication number Publication date
GB2039401A (en) 1980-08-06
NL7908971A (nl) 1980-07-15
GB2039401B (en) 1982-08-18
IT7927181A0 (it) 1979-11-09
ZA795791B (en) 1980-10-29
IT1125648B (it) 1986-05-14
ES8103404A1 (es) 1981-02-16
ES487579A0 (es) 1981-02-16
CA1130923A (en) 1982-08-31
US4234870A (en) 1980-11-18

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