SG48262A1 - Synchronised electronic identification system - Google Patents

Synchronised electronic identification system

Info

Publication number
SG48262A1
SG48262A1 SG1996008519A SG1996008519A SG48262A1 SG 48262 A1 SG48262 A1 SG 48262A1 SG 1996008519 A SG1996008519 A SG 1996008519A SG 1996008519 A SG1996008519 A SG 1996008519A SG 48262 A1 SG48262 A1 SG 48262A1
Authority
SG
Singapore
Prior art keywords
transponder
signal
response signal
interrogation
interrogator
Prior art date
Application number
SG1996008519A
Other languages
English (en)
Inventor
Van Clinton Alden Zyl
Michael John Camille Marsh
Original Assignee
British Tech Group
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 Tech Group filed Critical British Tech Group
Publication of SG48262A1 publication Critical patent/SG48262A1/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Molding Of Porous Articles (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Near-Field Transmission Systems (AREA)
  • Alarm Systems (AREA)
SG1996008519A 1992-08-26 1993-08-26 Synchronised electronic identification system SG48262A1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
SG48262A1 true SG48262A1 (en) 1998-04-17

Family

ID=25582026

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996008519A SG48262A1 (en) 1992-08-26 1993-08-26 Synchronised electronic identification system

Country Status (15)

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

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ZA936267B (en) 1994-04-14
UA37182C2 (uk) 2001-05-15
CN1047667C (zh) 1999-12-22
EP0585132B1 (en) 1998-09-23
AU670402B2 (en) 1996-07-11
US5557280A (en) 1996-09-17
DE69321179D1 (de) 1998-10-29
CA2104829C (en) 2004-11-23
AU656088B2 (en) 1995-01-19
TW297192B (uk) 1997-02-01
JPH07311263A (ja) 1995-11-28
AU4494093A (en) 1994-03-03
RU2156540C2 (ru) 2000-09-20
CN1088371A (zh) 1994-06-22
DE69321179T2 (de) 1999-05-06
JP3290003B2 (ja) 2002-06-10
US5699066A (en) 1997-12-16
AU1653095A (en) 1995-06-29
ES2121954T3 (es) 1998-12-16
EP0585132A1 (en) 1994-03-02
CA2104829A1 (en) 1994-02-27
ATE171547T1 (de) 1998-10-15
DK0585132T3 (da) 1999-06-14

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