NL8800514A - Communicatiestelsel. - Google Patents

Communicatiestelsel. Download PDF

Info

Publication number
NL8800514A
NL8800514A NL8800514A NL8800514A NL8800514A NL 8800514 A NL8800514 A NL 8800514A NL 8800514 A NL8800514 A NL 8800514A NL 8800514 A NL8800514 A NL 8800514A NL 8800514 A NL8800514 A NL 8800514A
Authority
NL
Netherlands
Prior art keywords
harmonic
frequency
transmitter
signal
communication system
Prior art date
Application number
NL8800514A
Other languages
English (en)
Dutch (nl)
Original Assignee
Electronic Identification Syst
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 Electronic Identification Syst filed Critical Electronic Identification Syst
Publication of NL8800514A publication Critical patent/NL8800514A/nl

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K11/00—Marking of animals
    • A01K11/006—Automatic identification systems for animals, e.g. electronic devices, transponders for animals
    • 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
    • B61L25/04—Indicating or recording train identities
    • B61L25/045—Indicating or recording train identities using reradiating tags
    • 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
    • G01S13/758—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 a signal generator powered by the interrogation signal
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G06K19/0724—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs the arrangement being a circuit for communicating at a plurality of frequencies, e.g. for managing time multiplexed communication over at least two antennas of different types
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Remote Sensing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Environmental Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Zoology (AREA)
  • Mechanical Engineering (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Birds (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Television Systems (AREA)
  • Radio Relay Systems (AREA)
  • Noise Elimination (AREA)
NL8800514A 1987-03-03 1988-02-29 Communicatiestelsel. NL8800514A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK110387A DK110387A (da) 1987-03-03 1987-03-03 Kommunikationsanlaeg
DK110387 1987-03-03

Publications (1)

Publication Number Publication Date
NL8800514A true NL8800514A (nl) 1988-10-03

Family

ID=8101033

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8800514A NL8800514A (nl) 1987-03-03 1988-02-29 Communicatiestelsel.

Country Status (6)

Country Link
JP (1) JPS63229924A (sv)
DE (1) DE3805343A1 (sv)
DK (1) DK110387A (sv)
GB (1) GB2202108A (sv)
NL (1) NL8800514A (sv)
SE (1) SE8800724L (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE464844B (sv) * 1989-08-23 1991-06-17 Henoch Bengt Foerfarande foer att kontaktloest oeverfoera information mellan en saendar/mottagningsenhet och en transponder
JP3018708B2 (ja) * 1992-01-31 2000-03-13 神鋼電機株式会社 無線通信装置
US5317330A (en) * 1992-10-07 1994-05-31 Westinghouse Electric Corp. Dual resonant antenna circuit for RF tags
US5477215A (en) * 1993-08-02 1995-12-19 At&T Corp. Arrangement for simultaneously interrogating a plurality of portable radio frequency communication devices
EP0670558B1 (en) * 1994-03-04 2000-05-03 NCR International, Inc. Modulated backscatter wireless communication system having an extended range
FR2723238B1 (fr) * 1994-07-27 1996-09-13 Suisse Electronique Microtech Systeme de communication entre une station de base et un transpondeur passif
US6650230B1 (en) 1998-11-19 2003-11-18 Ncr Corporation Modulated backscatter wireless communication system having an extended range
DE10021394A1 (de) * 2000-05-03 2001-11-15 Sab Service Und Fertigung Von Automatisches Tor zum Durchlassen eines Tieres
DE102005061438A1 (de) * 2005-12-22 2007-07-05 Atmel Germany Gmbh Transponder und Verfahren zum Betreiben eines Transponders

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137847A (en) * 1959-11-04 1964-06-16 Link Aviation Inc Signalling system
GB1085704A (en) * 1964-10-30 1967-10-04 Nat Res Dev Apparatus for detecting an object
GB1297279A (sv) * 1969-07-09 1972-11-22
GB1257692A (sv) * 1969-07-28 1971-12-22

Also Published As

Publication number Publication date
GB8803870D0 (en) 1988-03-23
DE3805343A1 (de) 1988-09-15
DK110387D0 (da) 1987-03-03
JPS63229924A (ja) 1988-09-26
DK110387A (da) 1988-09-04
SE8800724L (sv) 1988-09-04
SE8800724D0 (sv) 1988-03-02
GB2202108A (en) 1988-09-14

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Legal Events

Date Code Title Description
BV The patent application has lapsed