DEVICE FOR IDENTIFYING LOCATION AND TYPE OF OBJECT

WIPO Patent Application WO/2022/139293

A1

A device for identifying the location and type of an object according to the present invention comprises: a transmission and reception coil in which a conductive wire is wound concentrically and multiple times; a selection circuit for selectively connecting one end portion of the conductive wire of the transmission and reception coil to a first circuit end or a second circuit end; an output circuit formed to apply an alternating current of a first frequency to the first circuit end; a reception circuit for receiving an induced voltage applied to the second circuit end; and a control circuit for controlling the operation of the selection circuit to connect the output circuit to the one end portion of the transmission and reception coil in a transmission mode and connect the reception circuit to the one end portion of the transmission and reception coil in a reception mode, controlling the output circuit to apply the alternating current of the first frequency to the first circuit end in the transmission mode, and determining if a predetermined resonant circuit has come near the transmission and reception coil, by analyzing the peak or strength of the induced voltage received by the reception circuit in the reception mode.

YU HYUN WOO (KR)

PCT/KR2021/018877

June 30, 2022

December 13, 2021

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YU HYUN WOO (KR)

G06F3/041; G06F3/0354; G06F3/038; G06F3/044; G06F3/046; H01F27/28; H01F38/14

KR20130103375A	2013-09-23
KR101076369B1	2011-10-25
KR20160064719A	2016-06-08
KR20120134843A	2012-12-12
JP2008191860A	2008-08-21

SESHIN PATENT & LAW FIRM (KR)

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