Multi-point touch pad

Details Multi-point touch pad Multi-point touch pad

2006-02-07

2006-02-07

Osorio, Ricardo (Department: 2673)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C345S173000, C341S034000

Reexamination Certificate

active

06995752

ABSTRACT:
A multi-point touch pad device having a base with a top surface that defines a plane. A support layer has a top surface and a bottom surface. The top surface of the support layer contains a plurality of strain gauges that are disposed on the top surface of the support layer in a matrix configuration. A touch layer is disposed on top of the strain gauge matrix; the touch layer is joined to the top of the strain gauge matrix. Sensor wires connect the strain gauges to a processor which is programmed with an algorithm to measure the location and pressure of simultaneous, multiple touches.

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patent: 6292173 (2001-09-01), Rambaldi et al.
patent: 9718547 (1997-05-01), None

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