AT367693B - RADIO SYSTEM FOR VERY SHORT ELECTROMAGNETIC SHAFTS FOR LOCALLY SELECTIVE TRANSMISSION OF LOCATION-SPECIFIC INFORMATION - Google Patents

RADIO SYSTEM FOR VERY SHORT ELECTROMAGNETIC SHAFTS FOR LOCALLY SELECTIVE TRANSMISSION OF LOCATION-SPECIFIC INFORMATION

Info

Publication number
AT367693B
AT367693B AT113978A AT113978A AT367693B AT 367693 B AT367693 B AT 367693B AT 113978 A AT113978 A AT 113978A AT 113978 A AT113978 A AT 113978A AT 367693 B AT367693 B AT 367693B
Authority
AT
Austria
Prior art keywords
location
specific information
radio system
selective transmission
short electromagnetic
Prior art date
Application number
AT113978A
Other languages
German (de)
Other versions
ATA113978A (en
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 ATA113978A publication Critical patent/ATA113978A/en
Application granted granted Critical
Publication of AT367693B publication Critical patent/AT367693B/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
    • B61L25/025—Absolute localisation, e.g. providing geodetic coordinates

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Traffic Control Systems (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Near-Field Transmission Systems (AREA)
AT113978A 1977-02-18 1978-02-16 RADIO SYSTEM FOR VERY SHORT ELECTROMAGNETIC SHAFTS FOR LOCALLY SELECTIVE TRANSMISSION OF LOCATION-SPECIFIC INFORMATION AT367693B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772707091 DE2707091C3 (en) 1977-02-18 1977-02-18 Radio system for very short electromagnetic waves for the location-selective transmission of location-specific information

Publications (2)

Publication Number Publication Date
ATA113978A ATA113978A (en) 1981-12-15
AT367693B true AT367693B (en) 1982-07-26

Family

ID=6001616

Family Applications (1)

Application Number Title Priority Date Filing Date
AT113978A AT367693B (en) 1977-02-18 1978-02-16 RADIO SYSTEM FOR VERY SHORT ELECTROMAGNETIC SHAFTS FOR LOCALLY SELECTIVE TRANSMISSION OF LOCATION-SPECIFIC INFORMATION

Country Status (6)

Country Link
AT (1) AT367693B (en)
CH (1) CH625651A5 (en)
DE (1) DE2707091C3 (en)
DK (1) DK73678A (en)
FI (1) FI780520A (en)
FR (1) FR2381422A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2931084C3 (en) * 1979-07-31 1982-03-11 Siemens AG, 1000 Berlin und 8000 München Radio system
US4833759A (en) * 1985-11-08 1989-05-30 Walter Louis Larsen Bifurcated member hook fastening device
FR2833799B1 (en) * 2001-12-14 2004-03-12 Thales Sa CELLULAR COMMUNICATION NETWORK COVERING TERRESTRIAL COMMUNICATION TRACKS, SUCH AS RAILWAY TRACKS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB599040A (en) * 1945-09-12 1948-03-03 Kenneth Alfred Fletcher Improved means for signalling on railways
US2144203A (en) * 1937-09-23 1939-01-17 John P Shanklin Method for direct indication of position in a given area

Also Published As

Publication number Publication date
DK73678A (en) 1978-08-19
DE2707091C3 (en) 1980-08-14
DE2707091B2 (en) 1979-12-06
DE2707091A1 (en) 1978-08-24
ATA113978A (en) 1981-12-15
CH625651A5 (en) 1981-09-30
FR2381422A1 (en) 1978-09-15
FI780520A (en) 1978-08-19

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties