GB2280089B - System for the reception of signals from a passive transponder - Google Patents

System for the reception of signals from a passive transponder

Info

Publication number
GB2280089B
GB2280089B GB9418832A GB9418832A GB2280089B GB 2280089 B GB2280089 B GB 2280089B GB 9418832 A GB9418832 A GB 9418832A GB 9418832 A GB9418832 A GB 9418832A GB 2280089 B GB2280089 B GB 2280089B
Authority
GB
United Kingdom
Prior art keywords
reception
signals
passive transponder
transponder
passive
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.)
Expired - Lifetime
Application number
GB9418832A
Other versions
GB9418832D0 (en
GB2280089A (en
Inventor
Donald J Urbas
David Ellwood
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.)
Bio Medic Data Systems Inc
Original Assignee
Bio Medic Data Systems Inc
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
Priority claimed from US07/605,049 external-priority patent/US5250944A/en
Application filed by Bio Medic Data Systems Inc filed Critical Bio Medic Data Systems Inc
Publication of GB9418832D0 publication Critical patent/GB9418832D0/en
Publication of GB2280089A publication Critical patent/GB2280089A/en
Application granted granted Critical
Publication of GB2280089B publication Critical patent/GB2280089B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G06K19/077—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
    • G06K19/07777—Antenna details the antenna being of the inductive type
    • G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
    • H01Q7/08—Ferrite rod or like elongated core

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Near-Field Transmission Systems (AREA)
GB9418832A 1990-10-29 1991-09-12 System for the reception of signals from a passive transponder Expired - Lifetime GB2280089B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/605,049 US5250944A (en) 1990-10-29 1990-10-29 Antenna and driving circuit for transmitting and receiving images to and from a passive transponder
GB9119432A GB2250893B (en) 1990-10-29 1991-09-12 System for the reception of signals from a passive transponder

Publications (3)

Publication Number Publication Date
GB9418832D0 GB9418832D0 (en) 1994-11-09
GB2280089A GB2280089A (en) 1995-01-18
GB2280089B true GB2280089B (en) 1995-04-19

Family

ID=26299524

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9418832A Expired - Lifetime GB2280089B (en) 1990-10-29 1991-09-12 System for the reception of signals from a passive transponder

Country Status (1)

Country Link
GB (1) GB2280089B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5923300A (en) * 1997-04-03 1999-07-13 Destron-Fearing Corporation Multi-phase transmitter with single receive antenna for transponder interrogator
ES2536214T3 (en) * 2003-06-16 2015-05-21 Tyco Fire & Security Gmbh Electronic article surveillance antenna system for wide outputs
WO2008018231A1 (en) * 2006-08-09 2008-02-14 Murata Manufacturing Co., Ltd. Antenna coil and antenna device
TW200826366A (en) * 2006-11-02 2008-06-16 Murata Manufacturing Co Antenna coil and antenna unit
CN110231614B (en) * 2019-07-05 2024-01-26 电子科技大学 Microwave ranging system based on passive frequency conversion

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133660A (en) * 1982-11-09 1984-07-25 Tag Radionics Ltd Transponder detection systems
US4542532A (en) * 1984-03-09 1985-09-17 Medtronic, Inc. Dual-antenna transceiver
GB2179525A (en) * 1985-08-22 1987-03-04 Elect Ident Syst Silkeborg As An identification system
US4658263A (en) * 1985-02-11 1987-04-14 Allied Corporation Dual antenna for magnetic markers
WO1987004685A1 (en) * 1986-01-30 1987-08-13 Bespak Plc Collapsible chamber metering valves

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133660A (en) * 1982-11-09 1984-07-25 Tag Radionics Ltd Transponder detection systems
US4542532A (en) * 1984-03-09 1985-09-17 Medtronic, Inc. Dual-antenna transceiver
US4658263A (en) * 1985-02-11 1987-04-14 Allied Corporation Dual antenna for magnetic markers
GB2179525A (en) * 1985-08-22 1987-03-04 Elect Ident Syst Silkeborg As An identification system
WO1987004685A1 (en) * 1986-01-30 1987-08-13 Bespak Plc Collapsible chamber metering valves

Also Published As

Publication number Publication date
GB9418832D0 (en) 1994-11-09
GB2280089A (en) 1995-01-18

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20110911