User interface device

Details User interface device User interface device

2005-08-02

2005-08-02

Smith, Creighton (Department: 2645)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Including keyboard

C345S170000, C345S174000, C345S169000

Reexamination Certificate

active

06924789

ABSTRACT:
A keypad (7) of a mobile telephone handset comprises a keymat (17) beneath which are disposed capacitive sensing plates (20, 21). The keypad may be used in a conventional manner to enter alphanumeric data by pressing keys (18) or as a touch pad by sliding a finger over the surface of the keymat (17).

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