Device for locating an impact against an interactive surface, corresponding facilities, method and computer program

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11163393
APP PUB NO 20190227690A1
SERIAL NO

16337204

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Abstract

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A device for locating an impact against an interactive surface includes at least three transducers distributed against the interactive surface and an electronic central unit programmed to locate the impact by analysing propagation time differences of progressive mechanical waves from the impact to the transducers on the basis of instants of impact detection identified in the electrical signals supplied by the transducers. The electronic central unit is programmed to trigger an impact detection from a first instant when at least one M-th derivative from at least one of the received electrical signals exceeds a predetermined non-zero threshold value and for then determining, for each electrical signal received from each transducer, at least one second instant, subsequent to the first instant, of the first zero crossing of at least one N-th derivative of this electrical signal, from which is identified at least one instant of impact detection.

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Patent Owner(s)

Patent OwnerAddress
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES75015 PARIS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alexandre, Jean-Marc Verrieres-le-Buisson, FR 13 159
Boden, Robert Dourdan, FR 8 11

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