ZA813997B - A response evice for a system for automatic wireless transmission of multi-digit items of numerical information between active interrogation devices and passive response devices which are mobile relative to one another - Google Patents

A response evice for a system for automatic wireless transmission of multi-digit items of numerical information between active interrogation devices and passive response devices which are mobile relative to one another

Info

Publication number
ZA813997B
ZA813997B ZA813997A ZA813997A ZA813997B ZA 813997 B ZA813997 B ZA 813997B ZA 813997 A ZA813997 A ZA 813997A ZA 813997 A ZA813997 A ZA 813997A ZA 813997 B ZA813997 B ZA 813997B
Authority
ZA
South Africa
Prior art keywords
response
devices
evice
wireless transmission
another
Prior art date
Application number
ZA813997A
Inventor
Egon Edinger
Walter Egger
Friedrich Pedall
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 ZA813997B publication Critical patent/ZA813997B/en

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
ZA813997A 1980-06-16 1981-06-15 A response evice for a system for automatic wireless transmission of multi-digit items of numerical information between active interrogation devices and passive response devices which are mobile relative to one another ZA813997B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803022524 DE3022524A1 (en) 1980-06-16 1980-06-16 ANSWER DEVICE FOR A SYSTEM FOR THE AUTOMATIC WIRELESS TRANSMISSION OF MULTI-DIGITAL NUMERICAL INFORMATION BETWEEN MOVABLE ACTIVE INQUIRY DEVICES AND PASSIVE ANSWER DEVICES

Publications (1)

Publication Number Publication Date
ZA813997B true ZA813997B (en) 1982-06-30

Family

ID=6104741

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA813997A ZA813997B (en) 1980-06-16 1981-06-15 A response evice for a system for automatic wireless transmission of multi-digit items of numerical information between active interrogation devices and passive response devices which are mobile relative to one another

Country Status (4)

Country Link
EP (1) EP0042110A1 (en)
AU (1) AU7183381A (en)
DE (1) DE3022524A1 (en)
ZA (1) ZA813997B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5986526A (en) * 1997-03-03 1999-11-16 Ems Technologies Canada, Ltd. RF microwave bellows tuning post
EP2903084B1 (en) * 2014-02-04 2019-01-16 Alcatel Lucent A resonator assembly and filter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2286408A (en) * 1938-04-07 1942-06-16 Rca Corp Concentric resonant line
FR1006613A (en) * 1948-02-07 1952-04-25 Onera (Off Nat Aerospatiale) Improvements to devices such as cavities or resonant volumes
US2660711A (en) * 1948-12-17 1953-11-24 Westinghouse Electric Corp Self-tuning resonant cavity
SU623448A1 (en) * 1976-08-02 1979-03-15 Предприятие П/Я А-7904 Coaxial resonator frequency retuning arrangement
DE2644233A1 (en) * 1976-09-30 1978-04-06 Siemens Ag Tuner for coaxial resonator cavity - has conical pin or asymmetric wedge in field at base of inner conductor

Also Published As

Publication number Publication date
EP0042110A1 (en) 1981-12-23
DE3022524A1 (en) 1982-01-07
AU7183381A (en) 1981-12-24

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