Elliptic Laboratories As

Steven Lewis

Guenael Thomas Strutt

Tom Kavli

Erik Forsström

Rachel-Mikel Arcejaeger

Caitlin De Leys Brandman

A system for detecting a user input to a device comprises a display arrangement () arranged to provide a display () on a surface. An optical proximity sensing arrangement () is configured to produce touch information relating to whether an input object is within a threshold distance of the surface. An acoustic position sensing arrangement (, and) configured to produce position information relating to a position of the input object on the surface. A processing arrangement configured to determine an input to the device from the position information only when it determines from the touch information that the input object is within the threshold distance of the surface.

User interface with acoustic proximity and position sensing arrangements

A method alerts a user of a first device to the presence of a second device which can interact with the first device. The method includes using an ultrasonic signal transmitted by one of the devices to determine whether the first device is within a threshold distance of the second device. If the first device is determined to be within the threshold distance of the second device, a notification is triggered on the first device.

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Cupertino, CA, United States of America

Steven Lewis