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US 2012/0068971 A1Published application
Touch-sensitive display with optical sensor and method
AssigneeBlackBerry Limited
InventorNigel Patrick Pemberton-Pigott
Life of this patent
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Abstract
An electronic device includes a touch-sensitive display and a sensor configured to detect a force that results in depression of the touch-sensitive display. The sensor includes an optical device that receives a reflection of an optical signal, wherein the force affects the reflection.
Claims18
An electronic device comprising:
- a touch-sensitive display;
- a sensor configured to detect a force that results in depression of the touch-sensitive display, wherein the sensor comprises an optical device that receives a reflection of an optical signal, wherein the force affects the reflection.
An electronic device comprising:
- a touch-sensitive display;
- a force sensor operable with the touch-sensitive display to detect a force exerted on the touch-sensitive display, wherein the force sensor comprises an optical device that receives a reflection of an optical signal, wherein the reflection is affected by the force;
- an optical emitter arranged to provide optical signals from which the reflection results;
- a processor configured to receive signals from the optical receiver and evaluate the signals to detect a variation related to the force.
1 more element
A method comprising:
- emitting an optical signal toward a surface of a touch-sensitive display;
- receiving a reflection of the optical signal;
- detecting a change in the reflection caused by a force exerted on the touch-sensitive display;
- providing an indication of the force when the change is detected.
1 more element
Dependencies are inferred from the claim text.