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US 6,593,914 B1Granted
Keypads for electrical devices
AssigneeNokia Mobile Phones Ltd.
InventorsFrank Nuovo, Todd Wood, Seiji Morioka, Eduardo Salazar
Life of this patent
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Abstract
A mobile telephone includes a body, a display, and a keypad. The keypad has a plurality of individual numeral keys assigned to individual numerals and may be rotated with respect to the body. In this way it is possible for the presentation of information on the display to remain in a fixed orientation with respect to a user while the body is rotated about the display so that the mobile telephone can be converted from right-handed to left-handed use or the display can be moved from a first orientation to a second orientation.
Claims13
An electrical device comprising:
- a body;
- a display secured to the body for visual presentation of information;
- a keypad rotatably coupled to the body, wherein the keypad is rotatable with respect to the body and includes a plurality of pressure sensitive areas which detect key presses and rotation, and produce corresponding electrical signals;
- a user changeable keymat coupled to the keypad, the keymat defining a plurality of individual numeral keys;
- and the keymat of the keypad is configured to rotate with respect to the body;
- angular orientation measurement circuitry operable to measure the angular orientation of the keymat with respect to the body.
3 more elements
Dependencies are inferred from the claim text.