Device for contactless interaction with an electronic and/or computer apparatus, and apparatus equipped with such a device
First Claim
Patent Images
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.
2 Assignments
0 Petitions
Accused Products
Abstract
A device is provided for interacting without contact, via at least one command object, with a user appliance, including at least one first and one second part which, in use, form between them a non-zero angle, the device including:
- at least one first mechanism of detection by capacitive technology, and without contact, of the at least one command object with respect to a first control surface defined with respect to the first part of the user appliance, the first detection mechanism including several measurement electrodes; at least one, of the measurement electrodes being guarded, by a guard mechanism, at a guard potential, different from a ground potential, of the at least one command object, and substantially identical to the potential of the measurement electrode; and
- at least one second guard mechanism, for guarding the second part of the user appliance at least partially at the guard potential.
40 Citations
19 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A method for contactless interaction with an electronic user appliance having at least one first and one second part capable of forming a non-zero angle between them, the method comprising:
-
detecting a proximity of at least one command object with respect to the first part of the electronic user appliance using a first capacitive sensor array including a plurality of capacitive measurement electrodes formed in the first part; guarding at least one of the plurality of capacitive measurement electrodes against electrical noise using at least one first guard element formed in the first part, the at least one first guard element held at an alternating guard potential, different from a ground potential of the at least one command object, and referenced to the potential of the at least one capacitive measurement electrode; and guarding at least one of the plurality of capacitive measurement electrodes against electrical noise using at least one second guard element formed in the second part, the at least one second guard element held at the alternating guard potential referenced to the potential of the at least one capacitive measurement electrode; wherein each of the first part and the second part represent different planar sections, and the method further comprises adjusting the first part and the second part to vary the non-zero angle between them, and guarding said capacitive measurement electrodes of the first part using the at least one second guard element of 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. - View Dependent Claims (18, 19)
-
Specification