FR2139477A5 - - Google Patents

Info

Publication number
FR2139477A5
FR2139477A5 FR7217029A FR7217029A FR2139477A5 FR 2139477 A5 FR2139477 A5 FR 2139477A5 FR 7217029 A FR7217029 A FR 7217029A FR 7217029 A FR7217029 A FR 7217029A FR 2139477 A5 FR2139477 A5 FR 2139477A5
Authority
FR
France
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
FR7217029A
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.)
Class 345 Trains Ltd
Original Assignee
ML Engineering Plymouth Ltd
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 ML Engineering Plymouth Ltd filed Critical ML Engineering Plymouth Ltd
Application granted granted Critical
Publication of FR2139477A5 publication Critical patent/FR2139477A5/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/26—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being duration, interval, position, frequency, or sequence
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L13/00—Operation of signals from the vehicle or by the passage of the vehicle
    • B61L13/002—Operation of signals from the vehicle or by the passage of the vehicle actuated by the passage of the vehicle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Burglar Alarm Systems (AREA)
FR7217029A 1971-05-11 1972-05-12 Expired FR2139477A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1434671 1971-05-11

Publications (1)

Publication Number Publication Date
FR2139477A5 true FR2139477A5 (fr) 1973-01-05

Family

ID=10039539

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7217029A Expired FR2139477A5 (fr) 1971-05-11 1972-05-12

Country Status (3)

Country Link
FR (1) FR2139477A5 (fr)
GB (1) GB1354941A (fr)
ZA (1) ZA723177B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2763184B1 (fr) * 1997-05-07 1999-07-23 Csee Transport Dispositif de validation de messages numeriques, applicable notamment aux systemes de regulation du trafic ferroviaire

Also Published As

Publication number Publication date
GB1354941A (en) 1974-06-05
ZA723177B (en) 1973-11-28

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Legal Events

Date Code Title Description
ST Notification of lapse