发明授权
US06924789B2 User interface device 有权
用户界面设备

User interface device
摘要:
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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