Handheld electronic device comprising a keypad having...

Details Handheld electronic device comprising a keypad having... Handheld electronic device comprising a keypad having...

G - Physics

06

F

G06F 3/02 (2006.01) H01H 13/83 (2006.01) H03M 11/04 (2006.01) H04W 88/02 (2009.01) G06F 15/02 (2006.01)

Patent

CA 2648615

An improved handheld electronic device has a keypad that includes a plurality of different character sets selectively illuminable thereon. Different types of light and different mechanisms for delivering light provide the selective illumination of a particular character set. When a particular character set is illuminated, a corresponding character lookup table is active on the handheld electronic device whereby the processor determines the particular character or characters that were intended in an actuation of a key of the keypad.

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