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Device for contactless interaction with an electronic and/or computer apparatus, and apparatus equipped with such a device

  • US 10,222,913 B2
  • Filed: 03/28/2014
  • Issued: 03/05/2019
  • Est. Priority Date: 04/02/2013
  • Status: Active Grant
First Claim
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1. A device for interacting without contact, via at least one command object, with an electronic user appliance having at least one first and one second part which, in use, form between them a non-zero angle, said device comprising:

  • a first sensor array configured for detection by capacitive technology, and without contact, of said at least one command object with respect to a first control surface defined with respect to said first part of said user appliance, said first sensor array comprising several capacitive measurement electrodes, at least one of said measurement electrodes being guarded against electrical noise from the first part by at least one first guard element held at an alternating guard potential, different from a ground potential of said at least one command object, and referenced to the potential of said at least one measurement electrode; and

    at least one second guard element formed in the second part for guarding said capacitive measurement electrodes of the first part of said user appliance against electrical noise from the second part, the at least one second guard element referenced to said guard potential of the capacitive measurement electrodes;

    wherein each of the first part and the second part represent different planar sections that are adjustable to vary the non-zero angle between them; and

    wherein the at least one second guard element of the second part is configured for guarding said capacitive measurement electrodes of the first part from electrical noise from the second part through different non-zero angles between the first part and the second part by reducing interference caused by the second part in electrostatic fields created by the capacitive measurement electrodes of the first part.

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