Method and apparatus for optically detecting selections made...

Details Method and apparatus for optically detecting selections made... Method and apparatus for optically detecting selections made...

2005-11-14

2008-11-04

Wong, Albert K. (Department: 2612)

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

C345S168000, C340S008100, C340S008100, C400S477000, C250S297000

Reexamination Certificate

active

07446677

ABSTRACT:
Optics are utilized in an input device such as a mouse or keyboard, for example, to detect a condition of one or more selection indicators, such as whether a key or button has been depressed or a scroll wheel has been rotated. Depressing a key, clicking a button and/or rotating a scroll wheel cause one or more optical signals to be reflected from the corresponding selection indicator onto an optical detector. The optical detector generates electrical signals in response to the light received by the optical detector. A computational device of the input device processes the electrical signals to determine whether a key or button has been depressed, whether a scroll wheel has been rotated, etc. The corresponding information is then input to a computer that is interfaced with the input device.

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