DK422076A - MICROWAVE REFLECTIVE TRANSPONDER - Google Patents

MICROWAVE REFLECTIVE TRANSPONDER

Info

Publication number
DK422076A
DK422076A DK422076A DK422076A DK422076A DK 422076 A DK422076 A DK 422076A DK 422076 A DK422076 A DK 422076A DK 422076 A DK422076 A DK 422076A DK 422076 A DK422076 A DK 422076A
Authority
DK
Denmark
Prior art keywords
microwave reflective
transponder
reflective transponder
microwave
reflective
Prior art date
Application number
DK422076A
Other languages
Danish (da)
Inventor
P R M Denne
D E N Davies
C D Mcewen
Original Assignee
Alfa Laval Co 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 Alfa Laval Co Ltd filed Critical Alfa Laval Co Ltd
Publication of DK422076A publication Critical patent/DK422076A/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
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • 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
    • G01S13/767—Responders; Transponders
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/56—Display arrangements
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/28—Individual registration on entry or exit involving the use of a pass the pass enabling tracking or indicating presence

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Traffic Control Systems (AREA)
  • Near-Field Transmission Systems (AREA)
DK422076A 1975-09-19 1976-09-17 MICROWAVE REFLECTIVE TRANSPONDER DK422076A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB38660/75A GB1567750A (en) 1975-09-19 1975-09-19 Transponders

Publications (1)

Publication Number Publication Date
DK422076A true DK422076A (en) 1977-03-20

Family

ID=10404881

Family Applications (1)

Application Number Title Priority Date Filing Date
DK422076A DK422076A (en) 1975-09-19 1976-09-17 MICROWAVE REFLECTIVE TRANSPONDER

Country Status (9)

Country Link
JP (1) JPS5255890A (en)
AU (1) AU505686B2 (en)
CA (1) CA1078047A (en)
DE (1) DE2642022A1 (en)
DK (1) DK422076A (en)
FR (1) FR2325251A1 (en)
GB (1) GB1567750A (en)
IL (1) IL50466A (en)
NL (1) NL7610226A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ199520A (en) * 1981-01-21 1985-08-30 Australian Meat & Live Stock Livestock identification:implanted transponder
GB2102250B (en) * 1981-07-14 1985-08-21 Tag Radionics Ltd Coded information arrangements
GB2112607B (en) * 1981-12-18 1986-01-02 Senelco Ltd Transmitter/responder systems
ZA829121B (en) * 1981-12-18 1983-09-28 Senelco Ltd Transmitter/responder systems
GB2149623A (en) * 1983-10-26 1985-06-12 Itw New Zealand Ltd Identification device
BR8406225A (en) * 1983-12-06 1985-10-01 Mars Inc COMMUNICATION DEVICE WITH A DATA STORAGE FORM, DATA STORAGE FORM, DATA PROCESSING DEVICE AND CURRENCY VALIDITY CONTROL AND READING DATA SHEETS
CH663287A5 (en) * 1984-05-03 1987-11-30 Landis & Gyr Ag FACILITIES WITH CONTACTLESS INFORMATION TRANSFER BETWEEN AN IDENTIFICATOR AND AN IDENTIFICANT.
EP0170716B1 (en) * 1984-08-08 1990-10-24 Kabushiki Kaisha Toshiba Information medium
GB8420893D0 (en) * 1984-08-16 1984-09-19 Buttemer D A Transponder
GB2165723A (en) * 1984-10-16 1986-04-16 Alexander Francis Nixon Animal identification system
FR2601462B1 (en) * 1986-07-10 1988-08-05 Dissuavol Sarl METHOD FOR CONTROLLING THE MOVEMENT OF OBJECTS, IN PARTICULAR MOTOR VEHICLES
GB8700050D0 (en) * 1987-01-03 1987-07-08 Plessey Co Plc Security systems
JPH01148987A (en) * 1987-12-05 1989-06-12 Kubota Ltd Automatic discrimination system of vehicle
CA1335676C (en) * 1988-01-14 1995-05-23 Akira Iga Portable data transmitter device and a system using the same
GB2225197A (en) * 1988-11-18 1990-05-23 Marconi Electronic Devices Location monitoring of moveable objects
FR2648593B1 (en) * 1989-06-14 1992-08-21 Raimbault Pierre METHOD AND DEVICE FOR ACCOUNTING AND MONITORING ARTICLES
GB9313187D0 (en) * 1993-06-25 1993-08-11 Cotag Int Ltd Coding device
JPH07174845A (en) * 1993-12-17 1995-07-14 Omron Corp Code responding method, core responder, and code responding system using the code responder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713148A (en) * 1970-05-21 1973-01-23 Communications Services Corp I Transponder apparatus and system
US3852755A (en) * 1971-07-22 1974-12-03 Raytheon Co Remotely powered transponder having a dipole antenna array
US3859624A (en) * 1972-09-05 1975-01-07 Thomas A Kriofsky Inductively coupled transmitter-responder arrangement

Also Published As

Publication number Publication date
FR2325251A1 (en) 1977-04-15
NL7610226A (en) 1977-03-22
CA1078047A (en) 1980-05-20
GB1567750A (en) 1980-05-21
DE2642022A1 (en) 1977-04-07
AU505686B2 (en) 1979-11-29
AU1770376A (en) 1978-03-23
IL50466A0 (en) 1976-11-30
JPS5255890A (en) 1977-05-07
IL50466A (en) 1979-09-30

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