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1. WO1997023060 - APPARATUS FOR BIDIRECTIONAL DATA AND UNIDIRECTIONAL POWER TRANSMISSION BETWEEN MASTER AND SLAVE UNITS USING INDUCTIVE COUPLING

Publication Number WO/1997/023060
Publication Date 26.06.1997
International Application No. PCT/GB1996/002975
International Filing Date 02.12.1996
Chapter 2 Demand Filed 07.07.1997
IPC
G06K 7/08 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers
08by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
H04B 5/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
5Near-field transmission systems, e.g. inductive loop type
CPC
G06K 7/10336
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers, ; e.g. for reading patterns;
10by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
10009sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
10316using at least one antenna particularly designed for interrogating the wireless record carriers
10336the antenna being of the near field type, inductive coil
H04B 5/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
5Near-field transmission systems, e.g. inductive loop type
H04B 5/0031
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
5Near-field transmission systems, e.g. inductive loop type
0025Near field system adaptations
0031for data transfer
H04B 5/0037
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
5Near-field transmission systems, e.g. inductive loop type
0025Near field system adaptations
0037for power transfer
H04B 5/0056
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
5Near-field transmission systems, e.g. inductive loop type
0056for use in interrogation, identification or read/write systems
Applicants
  • INNOVISION RESEARCH & TECHNOLOGY LIMITED [GB]/[GB] (AllExceptUS)
  • WHITE, Andrew, David [GB]/[GB] (UsOnly)
  • BORRETT, Marc, Adrian [GB]/[GB] (UsOnly)
Inventors
  • WHITE, Andrew, David
  • BORRETT, Marc, Adrian
Agents
  • GILL JENNINGS & EVERY
Priority Data
9525746.515.12.1995GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS FOR BIDIRECTIONAL DATA AND UNIDIRECTIONAL POWER TRANSMISSION BETWEEN MASTER AND SLAVE UNITS USING INDUCTIVE COUPLING
(FR) APPAREIL DE TRANSMISSION BIDIRECTIONNELLE DE DONNEES ET DE TRANSMISSION UNIDIRECTIONNELLE DE PUISSANCE, ENTRE UNITE MAITRE ET UNITE ESCLAVE, A L'AIDE D'UN COUPLAGE PAR INDUCTION
Abstract
(EN) Data communication apparatus comprises a master unit (2) and at least one physically separate, passive slave unit (4). The master unit (2) has a first part (29) of an inductive communication system, and a processor (20) connected to the first part of the inductive communication system. The slave unit has a second part (40) of the inductive communication system, a data store (48), and a modulator (44, 49) responsive to data from the data store and connected to the second part (40) of the inductive communication system. The first and second parts of the inductive communication system (29, 40) are constructed so that when the slave unit (4) is brought into proximity with the master unit (2), power is inductively coupled from the master unit to the slave unit via the inductive communication system. The modulator (44, 49) in the slave unit (4) is thereby activated to cause data from the store (48) to be inductively communicated from the slave unit (4) to the master unit (2) via the inductive communication system. The processor (20) is responsive to the data supplied to the master unit (2).
(FR) Cet appareil de communication de données comprend une unité maître (2) ainsi qu'au moins une unité esclave (4), passive, physiquement séparée. L'unité maître (2) comporte une première partie (29) d'un système de communication par induction, ainsi qu'un processeur (20) relié à la première partie dudit système. L'unité esclave présente une seconde partie (40) du système de communication par induction, une mémoire (48) de données ainsi qu'un modulateur (44, 49) sensible aux données provenant de la mémoire et relié à la seconde partie (40) dudit système. Les première et seconde parties de ce système (29, 40) sont conçues de manière à ce que, lorsque l'unité esclave (4) est placée à proximité de l'unité maître (2), la puissance soit couplée de manière inductive, de l'unité maître à l'unité esclave, via le système de communication par induction. Le modulateur (44, 48) monté dans l'unité esclave (4) est alors activé pour provoquer, de manière inductive, la communication des données de la mémoire (48), de l'unité esclave (4) vers l'unité maître (2), via ledit système de communication. Le processeur (20) est sensible aux données fournies à l'unité maître (2).
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