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US 2006/0142071 A1Published application
Keypad for portable wireless devices
AssigneeSony Ericsson Mobile Communications AB
InventorDebra Stephens
Life of this patent
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AssigneeSony Ericsson Mobile Communications AB
InventorDebra Stephens
Estimating the term…
A keypad includes a plurality of keys that can be selectively coupled electrically with a printed circuit board to create electrical signals representative of a characters to be input to the portable wireless device. Each key further includes a plurality of contact points wherein each contact point can be separately electrically coupled with the printed circuit board to input a character associated with that contact point. The keypad can be switched between a singular mode in which all the contact points for a given key will refer to the same input character and a multiple mode in which each contact point for a given key will refer to a different input character. In addition, at least some of the contact points for each key can be programmed by the user to assign desired characters to specific contact points.
A keypad for a portable wireless device comprising:
An overlay keypad that fits over a standard keypad on a portable wireless device, the overlay keypad comprising:
An alternate keypad that can replace a removable standard keypad on a portable wireless device, the alternate keypad comprising:
A portable wireless device comprising:
Dependencies are inferred from the claim text.