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1. US20090219138 - Reader interfacing device

Office United States of America
Application Number 10520175
Application Date 02.07.2003
Publication Number 20090219138
Publication Date 03.09.2009
Publication Kind A1
IPC
H04Q 5/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
5Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
H04Q 5/22
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
5Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
18with indirect connection, i.e. through subordinate switching centre
22the subordinate centre not permitting interconnection of subscribers connected thereto
G06K 7/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers
G06K 19/07
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
Inventors Forster Ian James
Agents CHRISTENSEN O'CONNOR JOHNSON KINDNESS PLLC
Priority Data 0215318 03.07.2002 GB
Title
(EN) Reader interfacing device
Abstract
(EN)

A reader interfacing device is operative for providing a communication path between a tag or smart label reader configured to emit and receive interrogating radiation suitable for interrogating tags or smart labels at a first radiation frequency; and a remote tag or smart label is configured to be interrogated using radiation of a second frequency, the first frequency and the second frequency being mutually different by at least an order of magnitude, and the reader being operable to communicate through the device to the remote tag or smart label. The device includes a power supply for converting interrogating radiation received at the device from the reader to generate power supply potentials for powering the device. Moreover, the device is mutually magnetically coupled to the reader for receiving the interrogating radiation therefrom and for providing a modulated load thereto for communicating back to the reader. In order to achieve such magnetic coupling, the device including a loop antenna for magnetically coupling to a corresponding loop antenna of the reader. The device provides, for example, the advantage that the reader can conform to a standard ISO 15693 and the device enables remote tags and smart labels not conforming to the standard to communicate with the reader.