SE8404876L - IDENTIFICATION SYSTEM - Google Patents

IDENTIFICATION SYSTEM

Info

Publication number
SE8404876L
SE8404876L SE8404876A SE8404876A SE8404876L SE 8404876 L SE8404876 L SE 8404876L SE 8404876 A SE8404876 A SE 8404876A SE 8404876 A SE8404876 A SE 8404876A SE 8404876 L SE8404876 L SE 8404876L
Authority
SE
Sweden
Prior art keywords
frequencies
identification
abovementioned
tuned
radio frequency
Prior art date
Application number
SE8404876A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8404876D0 (en
Inventor
Bengt Larsson
Original Assignee
Bengt Larsson
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 Bengt Larsson filed Critical Bengt Larsson
Priority to SE8404876A priority Critical patent/SE8404876L/en
Publication of SE8404876D0 publication Critical patent/SE8404876D0/en
Priority to PCT/SE1985/000368 priority patent/WO1986002186A1/en
Publication of SE8404876L publication Critical patent/SE8404876L/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
    • G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
    • G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
    • G06K7/083—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive
    • G06K7/086—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive sensing passive circuit, e.g. resonant circuit 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
    • G06K19/0672—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 resonating marks
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Device for identifying objects (1) to which identification tags (2) have been attached. Identification is carried out with the aid of radio frequency electromagnetic waves. The device consists of a transmitter (3) and a sensor unit (4), each connected to a separate or common antenna (5 and 6) and where the abovementioned identification tags contain electronic resonance circuits tuned to predetermined resonance frequencies. The invention is characterised by each identification tag (2) containing one or more resonance circuits, each tuned to a different frequency, where each of these frequencies is selected from a given set of frequencies, and that the transmitter unit (4) transmits radio frequency signals with a frequency content corresponding to each of the frequencies contained in the abovementioned set of predetermined frequencies.
SE8404876A 1984-09-28 1984-09-28 IDENTIFICATION SYSTEM SE8404876L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE8404876A SE8404876L (en) 1984-09-28 1984-09-28 IDENTIFICATION SYSTEM
PCT/SE1985/000368 WO1986002186A1 (en) 1984-09-28 1985-09-26 Identification system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8404876A SE8404876L (en) 1984-09-28 1984-09-28 IDENTIFICATION SYSTEM

Publications (2)

Publication Number Publication Date
SE8404876D0 SE8404876D0 (en) 1984-09-28
SE8404876L true SE8404876L (en) 1986-05-21

Family

ID=20357170

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8404876A SE8404876L (en) 1984-09-28 1984-09-28 IDENTIFICATION SYSTEM

Country Status (2)

Country Link
SE (1) SE8404876L (en)
WO (1) WO1986002186A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295658B1 (en) * 1987-06-16 1993-09-08 Casio Computer Company Limited Nameplate apparatus incorporating communication unit
EP0545910A3 (en) 1987-12-23 1993-10-20 Alusuisse Lonza Services Ag Laminated foil for making high-frequency field interfering elements
WO1989005984A1 (en) * 1987-12-23 1989-06-29 Schweizerische Aluminium Ag Process for adapting the frequency band of an oscillating circuit made from a metal-plastic-metal sandwich foil useful as an identification label, and sandwich foil for implementing the process
US5140581A (en) * 1989-01-18 1992-08-18 Bell & Howell Phillipsburg Co. Read window for envelope reader
NL9100026A (en) * 1991-01-09 1992-08-03 Texas Instruments Holland INTERESTING STATION FOR IDENTIFYING OBJECTS PROCESSED OVER A TRANSPORTATION TRACK.
NL9100109A (en) * 1991-01-23 1992-08-17 Texas Instruments Holland INQUIRY STATION FOR OBJECTS TO BE IDENTIFIED.
NL9100110A (en) * 1991-01-23 1992-08-17 Texas Instruments Holland INTERESTING STATION FOR IDENTIFICATION PURPOSES WITH SEPARATE TRANSMITTER AND RECEIVER ANTENNAS.
NL9100111A (en) * 1991-01-23 1992-08-17 Texas Instruments Holland ANTENNA SYSTEM FOR AN INQUIRY STATION FOR IDENTIFYING OBJECTS.
US5339074A (en) * 1991-09-13 1994-08-16 Fluoroware, Inc. Very low frequency tracking system
FR2683951A1 (en) * 1991-11-14 1993-05-21 Michelin & Cie ANTENNA STRUCTURE SUITABLE FOR COMMUNICATION WITH AN ELECTRONIC LABEL IMPLANTED IN A TIRE.
US5696481A (en) * 1991-12-31 1997-12-09 Pejas; Wolfram Process for recording intermediate and final times in sporting events
DE4143246A1 (en) * 1991-12-31 1993-07-01 Privates Inst Fuer Physikalisc METHOD FOR DETERMINING INTERMEDIATE AND END TIME IN SPORTING EVENTS
US5381137A (en) * 1992-10-26 1995-01-10 Motorola, Inc. RF tagging system and RF tags and method
US5604486A (en) * 1993-05-27 1997-02-18 Motorola, Inc. RF tagging system with multiple decoding modalities
WO1995014938A1 (en) * 1993-11-26 1995-06-01 Magellan Technology Pty. Ltd. Location apparatus and method
EP0677752B1 (en) * 1994-04-15 2001-06-27 Siemens Aktiengesellschaft Sensor System
DE69515472T2 (en) * 1994-04-18 2000-09-07 Alfa Laval Agri Ab Tumba ANTENNA ARRANGEMENT
WO2001037004A1 (en) * 1999-11-15 2001-05-25 Bluetags A/S An object detection system
US6624752B2 (en) 1999-11-15 2003-09-23 Bluetags A/S Object detection system
JP6725407B2 (en) * 2016-12-14 2020-07-15 トッパン・フォームズ株式会社 Reading device and reading method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3363247A (en) * 1967-05-05 1968-01-09 Gen Electric Identification system
US4023167A (en) * 1975-06-16 1977-05-10 Wahlstrom Sven E Radio frequency detection system and method for passive resonance circuits
US4069472A (en) * 1975-12-25 1978-01-17 Tokyo Shibaura Electric Co., Ltd. Foreground subject-identifying apparatus
JPS53120295A (en) * 1977-03-30 1978-10-20 Toshiba Corp Subject discrimination device
JPS56119868A (en) * 1980-02-27 1981-09-19 Toshiba Corp Object discriminator

Also Published As

Publication number Publication date
SE8404876D0 (en) 1984-09-28
WO1986002186A1 (en) 1986-04-10

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8404876-8

Effective date: 19861008