Processing

Please wait...

Settings

Settings

Goto Application

1. WO2014195678 - RADIO FREQUENCY DETECTABLE DEVICE

Publication Number WO/2014/195678
Publication Date 11.12.2014
International Application No. PCT/GB2014/051617
International Filing Date 28.05.2014
IPC
G06K 19/067 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards
G06K 19/077 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards
07with integrated circuit chips
077Constructional details, e.g. mounting of circuits in the carrier
G08B 13/24 2006.1
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
13Burglar, theft or intruder alarms
22Electrical actuation
24by interference with electromagnetic field distribution
CPC
G06K 19/0672
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record 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
0672with resonating marks
G06K 19/07771
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record 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
07with integrated circuit chips
077Constructional details, e.g. mounting of circuits in the carrier
07749the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
07771the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object
G06K 19/07773
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record 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
07with integrated circuit chips
077Constructional details, e.g. mounting of circuits in the carrier
07749the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
07773Antenna details
G08B 13/2437
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
13Burglar, theft or intruder alarms
22Electrical actuation
24by interference with electromagnetic field distribution
2402Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
2428Tag details
2437Tag layered structure, processes for making layered tags
H01Q 1/2225
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
12Supports; Mounting means
22by structural association with other equipment or articles
2208associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
2225used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
H01Q 7/08
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
7Loop 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
06with core of ferromagnetic material
08Ferrite rod or like elongated core
Applicants
  • UNIVERSITY OF EXETER [GB]/[GB]
Inventors
  • HICKEN, Robert James
  • KEATLEY, Paul Steven
  • HIBBINS, Alastair Paul
Agents
  • OXLEY, Robin
Priority Data
1309920.504.06.2013GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) RADIO FREQUENCY DETECTABLE DEVICE
(FR) DISPOSITIF DÉTECTABLE PAR RADIOFRÉQUENCE
Abstract
(EN) A radio frequency detectable device comprising two electrically connected metallic cavity regions, the cavity regions in combination having an associated distributed inductance and distributed capacitance, wherein a first one of the cavity regions is defined between a pair of plates of relatively large plate separation and is loaded with a ferrite material, the first cavity region having a relatively large distributed inductance, and wherein a second one of the cavity regions is of relatively small plate separation and is filled with a dielectric, the second cavity region having a relatively large distributed capacitance. The second cavity region may be wound around the first cavity region to form a circuit with resonant frequency corresponding with an operating frequency of a reader.
(FR) L'invention concerne un dispositif détectable par radiofréquence qui comporte deux régions à cavité métalliques, reliées électriquement, les régions à cavité ayant en combinaison une inductance répartie associée et une capacité distribuée, une première des régions à cavité étant limitée entre une paire de plaques d'une séparation de plaque relativement grande et étant chargée d'un matériau en ferrite, la première région à cavité ayant une inductance distribuée relativement grande, et une seconde des régions à cavité étant d'une séparation de plaque relativement petite et étant remplie d'un diélectrique, la seconde région à cavité ayant une capacité distribuée relativement importante. La seconde région à cavité peut être enroulée autour de la première région à cavité pour former un circuit ayant une fréquence de résonance correspondant à une fréquence de fonctionnement d'un lecteur.
Related patent documents
Latest bibliographic data on file with the International Bureau