DE3805343A1 - Kommunikationsanlage - Google Patents

Kommunikationsanlage

Info

Publication number
DE3805343A1
DE3805343A1 DE19883805343 DE3805343A DE3805343A1 DE 3805343 A1 DE3805343 A1 DE 3805343A1 DE 19883805343 DE19883805343 DE 19883805343 DE 3805343 A DE3805343 A DE 3805343A DE 3805343 A1 DE3805343 A1 DE 3805343A1
Authority
DE
Germany
Prior art keywords
harmonic
signal
frequency
communication system
transmitter
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.)
Withdrawn
Application number
DE19883805343
Other languages
German (de)
English (en)
Inventor
Niels Moelgaard
Knud Christian Claus Fabrin
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.)
SILKEBORG ELECT IDENT SYST
Original Assignee
SILKEBORG ELECT IDENT 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 SILKEBORG ELECT IDENT SYST filed Critical SILKEBORG ELECT IDENT SYST
Publication of DE3805343A1 publication Critical patent/DE3805343A1/de
Withdrawn legal-status Critical Current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
    • 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)
  • Theoretical Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Environmental Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Birds (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Television Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
  • Radio Relay Systems (AREA)
DE19883805343 1987-03-03 1988-02-20 Kommunikationsanlage Withdrawn DE3805343A1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE3805343A1 true DE3805343A1 (de) 1988-09-15

Family

ID=8101033

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883805343 Withdrawn DE3805343A1 (de) 1987-03-03 1988-02-20 Kommunikationsanlage

Country Status (6)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553713A1 (en) * 1992-01-31 1993-08-04 Shinko Electric Co. Ltd. Radio communication system
EP0592224A1 (en) * 1992-10-07 1994-04-13 Westinghouse Electric Corporation Dual resonant antenna circuit for RF tags
DE10021394A1 (de) * 2000-05-03 2001-11-15 Sab Service Und Fertigung Von Automatisches Tor zum Durchlassen eines Tieres

Families Citing this family (6)

* 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
US5477215A (en) * 1993-08-02 1995-12-19 At&T Corp. Arrangement for simultaneously interrogating a plurality of portable radio frequency communication devices
DE69516568T2 (de) * 1994-03-04 2001-01-04 Ncr Int Inc Bereichserweitertes drahtloses Übertragungssystem mit modulierter Rückstrahlung
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
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 (da) * 1969-07-09 1972-11-22
GB1257692A (da) * 1969-07-28 1971-12-22

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553713A1 (en) * 1992-01-31 1993-08-04 Shinko Electric Co. Ltd. Radio communication system
EP0592224A1 (en) * 1992-10-07 1994-04-13 Westinghouse Electric Corporation Dual resonant antenna circuit for RF tags
DE10021394A1 (de) * 2000-05-03 2001-11-15 Sab Service Und Fertigung Von Automatisches Tor zum Durchlassen eines Tieres

Also Published As

Publication number Publication date
SE8800724L (sv) 1988-09-04
NL8800514A (nl) 1988-10-03
DK110387D0 (da) 1987-03-03
GB8803870D0 (en) 1988-03-23
GB2202108A (en) 1988-09-14
SE8800724D0 (sv) 1988-03-02
DK110387A (da) 1988-09-04
JPS63229924A (ja) 1988-09-26

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee