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US 8600430

How Smartphones Use Light Sensors to Detect When You Are Talking

Apple's patent on using light sensors to help a phone accurately detect when it is pressed against your ear, preventing accidental screen touches.

Statusactive

Granted2013

Expires2031

Claims27

Forward citations59

Prior art144

AssigneeApple Inc

InventorsWayne C. Westerman, Stephen P. Hotelling +2

Patent B

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