FR2107931B1 - - Google Patents

Info

Publication number
FR2107931B1
FR2107931B1 FR7134197A FR7134197A FR2107931B1 FR 2107931 B1 FR2107931 B1 FR 2107931B1 FR 7134197 A FR7134197 A FR 7134197A FR 7134197 A FR7134197 A FR 7134197A FR 2107931 B1 FR2107931 B1 FR 2107931B1
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
FR7134197A
Other languages
French (fr)
Other versions
FR2107931A1 (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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2107931A1 publication Critical patent/FR2107931A1/fr
Application granted granted Critical
Publication of FR2107931B1 publication Critical patent/FR2107931B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
    • G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
    • G01S13/753—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using frequency selective elements, e.g. resonator
    • 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
    • B61L25/045—Indicating or recording train identities using reradiating tags

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Waveguide Aerials (AREA)
FR7134197A 1970-09-24 1971-09-23 Expired FR2107931B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702047153 DE2047153C3 (en) 1970-09-24 1970-09-24 Response device for a device for automatic wireless transmission of multi-digit information, in particular the numbers of railway vehicles

Publications (2)

Publication Number Publication Date
FR2107931A1 FR2107931A1 (en) 1972-05-12
FR2107931B1 true FR2107931B1 (en) 1975-07-18

Family

ID=5783335

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7134197A Expired FR2107931B1 (en) 1970-09-24 1971-09-23

Country Status (8)

Country Link
BE (1) BE772633A (en)
DE (1) DE2047153C3 (en)
FR (1) FR2107931B1 (en)
GB (1) GB1332574A (en)
IT (1) IT938792B (en)
LU (1) LU63941A1 (en)
NL (1) NL7113031A (en)
SE (1) SE362839B (en)

Also Published As

Publication number Publication date
SE362839B (en) 1973-12-27
DE2047153B2 (en) 1974-12-19
NL7113031A (en) 1972-03-28
GB1332574A (en) 1973-10-03
DE2047153A1 (en) 1972-05-25
LU63941A1 (en) 1972-03-01
DE2047153C3 (en) 1975-07-31
BE772633A (en) 1972-01-17
FR2107931A1 (en) 1972-05-12
IT938792B (en) 1973-02-10

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Legal Events

Date Code Title Description
ST Notification of lapse