DK0666989T3 - Method of data transfer between a question and answer station and transmission system - Google Patents

Method of data transfer between a question and answer station and transmission system

Info

Publication number
DK0666989T3
DK0666989T3 DK94923633T DK94923633T DK0666989T3 DK 0666989 T3 DK0666989 T3 DK 0666989T3 DK 94923633 T DK94923633 T DK 94923633T DK 94923633 T DK94923633 T DK 94923633T DK 0666989 T3 DK0666989 T3 DK 0666989T3
Authority
DK
Denmark
Prior art keywords
station
interrogator
pulses
interrogation
transponder
Prior art date
Application number
DK94923633T
Other languages
Danish (da)
Inventor
Peter Aggteleky
Rolf Baechtiger
Max Loder
Roland Dill
Valentin Magori
Leonhard Reindl
Werner Ruile
Clemens Ruppel
Thomas Ostertag
Frank Schmidt
Original Assignee
Siemens Schweiz 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
Priority claimed from CH250193A external-priority patent/CH687046A5/en
Priority claimed from PCT/CH1993/000252 external-priority patent/WO1994011754A1/en
Application filed by Siemens Schweiz Ag filed Critical Siemens Schweiz Ag
Application granted granted Critical
Publication of DK0666989T3 publication Critical patent/DK0666989T3/en

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
    • G01S13/755—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 delay lines, e.g. acoustic delay lines
    • 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
    • G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
    • G01S13/825—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted with exchange of information between interrogator and responder

Abstract

The method described is intended for use in the transmission of data between interrogator and transponder stations (Q, R), the transponder station (R) preferably having a surface acoustic wave element (OFW) with a substrate suitable for conducting surface acoustic waves. The narrow-band interrogation pulses emitted by the interrogator station (Q) are modified in the transponder station (R) in such a way that the frequency spectrum of the modified interrogation pulses lies at least partly outside the frequency range of the unmodified interrogation pulses. The interrogation pulses are, for instance, fed to the surface acoustic wave element (OFW) in transponder station R1, for instance, via the input interdigital transducer (IDWi) and reflected as response pulses to the interrogator station (Q1) where signal components which lie in the frequency range of the response pulses are rejected. The response signals can thus be processed without interference occurring due to interrogation impulses emitted by other interrogator stations (Qx).
DK94923633T 1993-08-23 1994-08-23 Method of data transfer between a question and answer station and transmission system DK0666989T3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CH250193A CH687046A5 (en) 1993-08-23 1993-08-23 Data transfer system between interrogator and responder stations
CH280893 1993-09-17
PCT/CH1993/000252 WO1994011754A1 (en) 1992-11-06 1993-11-03 Process and circuit for data transfer between two stations
CH32994 1994-02-04
CH62894 1994-03-03
CH62994 1994-03-03

Publications (1)

Publication Number Publication Date
DK0666989T3 true DK0666989T3 (en) 2000-08-21

Family

ID=27543586

Family Applications (1)

Application Number Title Priority Date Filing Date
DK94923633T DK0666989T3 (en) 1993-08-23 1994-08-23 Method of data transfer between a question and answer station and transmission system

Country Status (7)

Country Link
EP (1) EP0666989B1 (en)
AT (1) ATE190404T1 (en)
DE (1) DE59409189D1 (en)
DK (1) DK0666989T3 (en)
ES (1) ES2142952T3 (en)
NO (1) NO310844B1 (en)
WO (1) WO1995006261A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09147284A (en) * 1995-11-07 1997-06-06 Siemens Ag Radio inquiry device operated by surface acoustic wave
DE19750047A1 (en) * 1997-11-12 1999-05-20 Bosch Gmbh Robert Directional short-range communication method (DSRC) and transponder therefor
DE19938998B4 (en) * 1999-08-17 2008-01-17 Infineon Technologies Ag Method for operating chip cards
DE19957557A1 (en) * 1999-11-30 2001-06-07 Siemens Ag Identification system, esp. for vehicle
US10110572B2 (en) 2015-01-21 2018-10-23 Oracle International Corporation Tape drive encryption in the data path

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3131188C2 (en) * 1981-08-06 1986-09-11 Siemens AG, 1000 Berlin und 8000 München System for fail-safe bilateral message transmission
FR2624677B1 (en) * 1987-12-10 1994-04-01 Fabrication Instruments Mesure TWO-WAY HERTZIAN LINK SYSTEM

Also Published As

Publication number Publication date
NO951486L (en) 1995-06-23
NO951486D0 (en) 1995-04-19
DE59409189D1 (en) 2000-04-13
EP0666989A1 (en) 1995-08-16
ATE190404T1 (en) 2000-03-15
EP0666989B1 (en) 2000-03-08
WO1995006261A1 (en) 1995-03-02
ES2142952T3 (en) 2000-05-01
NO310844B1 (en) 2001-09-03

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Legal Events

Date Code Title Description
AHS Application shelved for other reasons than non-payment