DEVICE FOR DETECTING AN ITEM OF ELECTRONIC EQUIPMENT AND FOR COMMUNICATING WITH TWO NEAR-FIELD COMMUNICATION ANTENNAE

DEVICE FOR DETECTING AN ITEM OF ELECTRONIC EQUIPMENT AND FOR COMMUNICATING WITH TWO NEAR-FIELD COMMUNICATION ANTENNAE

A device for detecting the approach of a portable electronic apparatus and for communicating in the near field with a first antenna for communication at high frequency and an electrical power-supply and control unit having a device for measuring a variation in the amplitude of an electrical paramete...

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Hauptverfasser: Vassilieff, Youri, Cheikh, Mohamed, Saavedra, Enrique
Format: Patent
Sprache:eng
Schlagworte:
DETECTING MASSES OR OBJECTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
TRANSMISSION
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creator Vassilieff, Youri
Cheikh, Mohamed
Saavedra, Enrique
description A device for detecting the approach of a portable electronic apparatus and for communicating in the near field with a first antenna for communication at high frequency and an electrical power-supply and control unit having a device for measuring a variation in the amplitude of an electrical parameter representative of detection of the approach of the apparatus. The device includes a second near-field communication antenna housed in a space delimited by the first antenna and associated with a resonance circuit by being connected to the control unit by a switch having a first position for near-field communication where the second antenna is not supplied with power and a second position for approach detection where the second antenna is connected and enters into resonance with the first, active antenna.
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subjects DETECTING MASSES OR OBJECTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
TRANSMISSION
title DEVICE FOR DETECTING AN ITEM OF ELECTRONIC EQUIPMENT AND FOR COMMUNICATING WITH TWO NEAR-FIELD COMMUNICATION ANTENNAE
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