FI98573B - Läheisyysdetektori - Google Patents

Läheisyysdetektori

Info

Publication number
FI98573B
FI98573B FI911283A FI911283A FI98573B FI 98573 B FI98573 B FI 98573B FI 911283 A FI911283 A FI 911283A FI 911283 A FI911283 A FI 911283A FI 98573 B FI98573 B FI 98573B
Authority
FI
Finland
Prior art keywords
proximity detector
proximity
detector
Prior art date
Application number
FI911283A
Other languages
English (en)
Swedish (sv)
Other versions
FI911283A0 (fi
FI98573C (fi
Inventor
Theodore D Geiszler
Dale Lindseth
Original Assignee
Indala Corp
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 Indala Corp filed Critical Indala Corp
Publication of FI911283A0 publication Critical patent/FI911283A0/fi
Application granted granted Critical
Publication of FI98573B publication Critical patent/FI98573B/fi
Publication of FI98573C publication Critical patent/FI98573C/fi

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
    • 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
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10326—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the very-near field type, e.g. capacitive
    • 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
    • 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
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10336—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the near field type, inductive coil
    • 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)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Near-Field Transmission Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Transmitters (AREA)
FI911283A 1989-07-18 1991-03-15 Läheisyysdetektori FI98573C (fi)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US38108789A 1989-07-18 1989-07-18
US38108789 1989-07-18
US45327189 1989-12-18
US07/453,271 US5099227A (en) 1989-07-18 1989-12-18 Proximity detecting apparatus
US9004045 1990-07-18
PCT/US1990/004045 WO1991001531A1 (en) 1989-07-18 1990-07-18 Proximity detecting apparatus

Publications (3)

Publication Number Publication Date
FI911283A0 FI911283A0 (fi) 1991-03-15
FI98573B true FI98573B (fi) 1997-03-27
FI98573C FI98573C (fi) 1997-07-10

Family

ID=27009237

Family Applications (1)

Application Number Title Priority Date Filing Date
FI911283A FI98573C (fi) 1989-07-18 1991-03-15 Läheisyysdetektori

Country Status (9)

Country Link
US (1) US5099227A (fi)
EP (1) EP0434817B1 (fi)
JP (1) JPH0744489B2 (fi)
KR (1) KR100226117B1 (fi)
AU (1) AU630730B2 (fi)
CA (1) CA2036378C (fi)
DE (1) DE69019937T2 (fi)
FI (1) FI98573C (fi)
WO (1) WO1991001531A1 (fi)

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Also Published As

Publication number Publication date
JPH0744489B2 (ja) 1995-05-15
KR920701919A (ko) 1992-08-12
DE69019937T2 (de) 1996-01-04
KR100226117B1 (ko) 1999-10-15
FI911283A0 (fi) 1991-03-15
JPH04500896A (ja) 1992-02-13
EP0434817B1 (en) 1995-06-07
AU630730B2 (en) 1992-11-05
AU6074090A (en) 1991-02-22
FI98573C (fi) 1997-07-10
EP0434817A1 (en) 1991-07-03
DE69019937D1 (de) 1995-07-13
US5099227A (en) 1992-03-24
CA2036378A1 (en) 1991-01-19
CA2036378C (en) 1995-11-07
WO1991001531A1 (en) 1991-02-07

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