DE69321179T2 - Synchronisiertes elektronisches Identifizierungssystem - Google Patents

Synchronisiertes elektronisches Identifizierungssystem

Info

Publication number
DE69321179T2
DE69321179T2 DE69321179T DE69321179T DE69321179T2 DE 69321179 T2 DE69321179 T2 DE 69321179T2 DE 69321179 T DE69321179 T DE 69321179T DE 69321179 T DE69321179 T DE 69321179T DE 69321179 T2 DE69321179 T2 DE 69321179T2
Authority
DE
Germany
Prior art keywords
transponder
signal
response signal
interrogation
interrogator
Prior art date
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 - Lifetime
Application number
DE69321179T
Other languages
English (en)
Other versions
DE69321179D1 (de
Inventor
Michael John Camille Marsh
Zyl Clinton Aiden Van
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.)
ZIH Corp
Original Assignee
British Technology Group Ltd
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 British Technology Group Ltd filed Critical British Technology Group Ltd
Application granted granted Critical
Publication of DE69321179D1 publication Critical patent/DE69321179D1/de
Publication of DE69321179T2 publication Critical patent/DE69321179T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
    • G06K7/10029—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
    • G06K7/10059—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot transponder driven
    • 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
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
    • G06K7/10029—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
    • G06K7/10039—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot interrogator driven, i.e. synchronous
DE69321179T 1992-08-26 1993-08-26 Synchronisiertes elektronisches Identifizierungssystem Expired - Lifetime DE69321179T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA926446 1992-08-26

Publications (2)

Publication Number Publication Date
DE69321179D1 DE69321179D1 (de) 1998-10-29
DE69321179T2 true DE69321179T2 (de) 1999-05-06

Family

ID=25582026

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69321179T Expired - Lifetime DE69321179T2 (de) 1992-08-26 1993-08-26 Synchronisiertes elektronisches Identifizierungssystem

Country Status (15)

Country Link
US (2) US5557280A (de)
EP (1) EP0585132B1 (de)
JP (1) JP3290003B2 (de)
CN (1) CN1047667C (de)
AT (1) ATE171547T1 (de)
AU (2) AU656088B2 (de)
CA (1) CA2104829C (de)
DE (1) DE69321179T2 (de)
DK (1) DK0585132T3 (de)
ES (1) ES2121954T3 (de)
RU (1) RU2156540C2 (de)
SG (1) SG48262A1 (de)
TW (1) TW297192B (de)
UA (1) UA37182C2 (de)
ZA (1) ZA936267B (de)

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RU2156540C2 (ru) 2000-09-20
CA2104829C (en) 2004-11-23
EP0585132A1 (de) 1994-03-02
US5557280A (en) 1996-09-17
EP0585132B1 (de) 1998-09-23
CN1088371A (zh) 1994-06-22
ATE171547T1 (de) 1998-10-15
ES2121954T3 (es) 1998-12-16
UA37182C2 (uk) 2001-05-15
AU656088B2 (en) 1995-01-19
TW297192B (de) 1997-02-01
AU4494093A (en) 1994-03-03
JPH07311263A (ja) 1995-11-28
JP3290003B2 (ja) 2002-06-10
SG48262A1 (en) 1998-04-17
ZA936267B (en) 1994-04-14
AU1653095A (en) 1995-06-29
CA2104829A1 (en) 1994-02-27
DE69321179D1 (de) 1998-10-29
AU670402B2 (en) 1996-07-11
DK0585132T3 (da) 1999-06-14
CN1047667C (zh) 1999-12-22
US5699066A (en) 1997-12-16

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