FR2201506B1 - - Google Patents

Info

Publication number
FR2201506B1
FR2201506B1 FR7233929A FR7233929A FR2201506B1 FR 2201506 B1 FR2201506 B1 FR 2201506B1 FR 7233929 A FR7233929 A FR 7233929A FR 7233929 A FR7233929 A FR 7233929A FR 2201506 B1 FR2201506 B1 FR 2201506B1
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
FR7233929A
Other languages
French (fr)
Other versions
FR2201506A1 (ro
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.)
DUMONT ENGINEERING CIE
Original Assignee
DUMONT ENGINEERING CIE
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 DUMONT ENGINEERING CIE filed Critical DUMONT ENGINEERING CIE
Priority to FR7233929A priority Critical patent/FR2201506B1/fr
Publication of FR2201506A1 publication Critical patent/FR2201506A1/fr
Application granted granted Critical
Publication of FR2201506B1 publication Critical patent/FR2201506B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
    • G08B3/1016—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
    • 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
    • B61L25/043—Indicating or recording train identities using inductive tags
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/28—Individual registration on entry or exit involving the use of a pass the pass enabling tracking or indicating presence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
FR7233929A 1972-09-25 1972-09-25 Expired FR2201506B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7233929A FR2201506B1 (ro) 1972-09-25 1972-09-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7233929A FR2201506B1 (ro) 1972-09-25 1972-09-25

Publications (2)

Publication Number Publication Date
FR2201506A1 FR2201506A1 (ro) 1974-04-26
FR2201506B1 true FR2201506B1 (ro) 1976-08-13

Family

ID=9104759

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7233929A Expired FR2201506B1 (ro) 1972-09-25 1972-09-25

Country Status (1)

Country Link
FR (1) FR2201506B1 (ro)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1280334B (de) * 1966-05-28 1968-10-17 Hagenuk Neufeldt Kuhnke Gmbh Verfahren und Einrichtung zur UEbermittlung eines elektrischen Meldesignals von einem auf einer Wasserstrasse befindlichen Wasserfahrzeug an eine am Ufer errichtete Meldestation
DE1762614A1 (de) * 1968-07-19 1970-07-02 Grimm Dr Ing Olaf Induktive UEbertragungseinrichtung
FR2092890A1 (ro) * 1970-06-29 1972-01-28 Zephinie Gerard

Also Published As

Publication number Publication date
FR2201506A1 (ro) 1974-04-26

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Legal Events

Date Code Title Description
ST Notification of lapse