SE9201864D0 - SYSTEM FOR INFORMATION TRANSFER WITH MULTIPLE TRANSPONDERS - Google Patents

SYSTEM FOR INFORMATION TRANSFER WITH MULTIPLE TRANSPONDERS

Info

Publication number
SE9201864D0
SE9201864D0 SE9201864A SE9201864A SE9201864D0 SE 9201864 D0 SE9201864 D0 SE 9201864D0 SE 9201864 A SE9201864 A SE 9201864A SE 9201864 A SE9201864 A SE 9201864A SE 9201864 D0 SE9201864 D0 SE 9201864D0
Authority
SE
Sweden
Prior art keywords
reply
signal
emitting
signals
transponders
Prior art date
Application number
SE9201864A
Other languages
Swedish (sv)
Inventor
S Gunnarsson
Original Assignee
Saab Scania Combitech Ab
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 Saab Scania Combitech Ab filed Critical Saab Scania Combitech Ab
Priority to SE9201864A priority Critical patent/SE9201864D0/en
Publication of SE9201864D0 publication Critical patent/SE9201864D0/en
Priority to DE69324132T priority patent/DE69324132T2/en
Priority to AU34133/93A priority patent/AU3413393A/en
Priority to EP93902629A priority patent/EP0623219B1/en
Priority to PCT/SE1993/000031 priority patent/WO1993015418A1/en
Priority to US08/256,791 priority patent/US5552790A/en
Priority to PCT/SE1993/000543 priority patent/WO1993025918A1/en

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
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07758—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag
    • 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
    • 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
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07773—Antenna details
    • G06K19/07786—Antenna details the antenna being of the HF type, such as a dipole
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
    • G07B15/02—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points taking into account a variable factor such as distance or time, e.g. for passenger transport, parking systems or car rental systems
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/247—Supports; Mounting means by structural association with other equipment or articles with receiving set with frequency mixer, e.g. for direct satellite reception or Doppler radar
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Finance (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

A system is described for communication by means of signals in form of electromagnetic waves, especially microwaves, within a restricted communication area (3, 7) comprising at least one first unit (4, 6) for emitting a first enquiry signal and receiving a number of reply signals and a number of further units in form of transponders (1, 2, 8) emitting these reply signals when being present in the communication area. The transponders are equipped with modulating means (25, 26) for modulating the arriving enquiry signal with individual reply codes containing information and means for emitting this information as a reply signal. The system is primarily characterized of that each transponder modulating means (26, 72) is adapted to continuously be supplied with its individual reply code from a memory (28) within a first relatively short interval (19) being continuously repeated with relatively long intervals (18), the reply code thus being available to be emitted together with the reply signal in time, completely independent of the enquiry signal. In a preferred embodiment of the system a means is established in the transponder to randomly or pseudorandomly generate said intervals (18).
SE9201864A 1992-01-23 1992-06-17 SYSTEM FOR INFORMATION TRANSFER WITH MULTIPLE TRANSPONDERS SE9201864D0 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9201864A SE9201864D0 (en) 1992-06-17 1992-06-17 SYSTEM FOR INFORMATION TRANSFER WITH MULTIPLE TRANSPONDERS
DE69324132T DE69324132T2 (en) 1992-01-23 1993-01-21 WIRELESS INFORMATION TRANSFER DEVICE
AU34133/93A AU3413393A (en) 1992-01-23 1993-01-21 Device for wireless transfer of information
EP93902629A EP0623219B1 (en) 1992-01-23 1993-01-21 Device for wireless transfer of information
PCT/SE1993/000031 WO1993015418A1 (en) 1992-01-23 1993-01-21 Device for wireless transfer of information
US08/256,791 US5552790A (en) 1992-01-23 1993-01-21 Device for wireless transfer of information
PCT/SE1993/000543 WO1993025918A1 (en) 1992-06-17 1993-06-17 A system for the transfer of information comprising several transponders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9201864A SE9201864D0 (en) 1992-06-17 1992-06-17 SYSTEM FOR INFORMATION TRANSFER WITH MULTIPLE TRANSPONDERS

Publications (1)

Publication Number Publication Date
SE9201864D0 true SE9201864D0 (en) 1992-06-17

Family

ID=20386528

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9201864A SE9201864D0 (en) 1992-01-23 1992-06-17 SYSTEM FOR INFORMATION TRANSFER WITH MULTIPLE TRANSPONDERS

Country Status (2)

Country Link
SE (1) SE9201864D0 (en)
WO (1) WO1993025918A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19614556A1 (en) * 1996-04-12 1997-10-16 Leonhard Lerchner Device for remote data transmission between a data carrier and a control center
US6104333A (en) * 1996-12-19 2000-08-15 Micron Technology, Inc. Methods of processing wireless communication, methods of processing radio frequency communication, and related systems
GB2333623B (en) * 1998-01-24 2000-04-26 Plessey Telecomm Transaction system
WO2001025571A1 (en) * 1999-10-04 2001-04-12 Siemens Automotive Corporation Sequencing control for vehicle access system
US7248145B2 (en) 2000-02-28 2007-07-24 Magellan Technology Oty Limited Radio frequency identification transponder
US7259654B2 (en) 2000-02-28 2007-08-21 Magellan Technology Pty Limited Radio frequency identification transponder
DE10309419A1 (en) * 2003-03-05 2004-09-16 Leopold Kostal Gmbh & Co Kg Method for identification of mobile transponder e.g. for access authorization test system for buildings, selects possible time slot for answer according to random number
DE102005046185B4 (en) * 2005-09-27 2011-06-30 Siemens AG, 80333 Method and device for determining a point in time for the independent establishment of a connection
US20110204148A1 (en) 2008-07-21 2011-08-25 Stuart Colin Littlechild Device having data storage
CN108120964B (en) * 2017-11-22 2021-12-07 西南电子技术研究所（中国电子科技集团公司第十研究所） Method for dynamically testing time delay data of secondary radar local machine to improve ranging precision

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2601168B1 (en) * 1986-07-04 1988-09-16 Lmt Radio Professionelle ANTI-COLLISION SYSTEM FOR MARITIME NAVIGATION.
US5030807A (en) * 1990-01-16 1991-07-09 Amtech Corporation System for reading and writing data from and into remote tags
US5055659A (en) * 1990-02-06 1991-10-08 Amtech Technology Corp. High speed system for reading and writing data from and into remote tags
DE69116946T2 (en) * 1990-06-15 1996-06-20 Savi Techn Inc Radio identification and targeting method and apparatus

Also Published As

Publication number Publication date
WO1993025918A1 (en) 1993-12-23

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