Abstract: A multifunction keypad includes a touch-sensitive surface with a number of regions designated as keys. A processor, associated with the touch-sensitive surface, is configured to: (i) identify a contact location at which an object comes into contact with the touch-sensitive surface, (ii) determine a selected one of the keys corresponding to the one of the regions within which the contact location is located, (iii) identify a direction of motion of the object across the touch-sensitive surface relative to the contact location, and (iv) select in a manner conditional upon at least the direction of motion one of a plurality of functions associated with the selected key.

Abstract: A system comprising a processor and an input device. The input device has a first communication port disposed thereon. The first communication port is configured to wirelessly communicate keystrokes performed on the input device to the processor. The input device is configured for being held and operated with one hand. The input device has a complete basic alphanumeric character set and a plurality of symbols which are actuated by one of at least ten multifunction keys arranged in a grid of three columns by four rows, each of the multifunction keys being configured for single-touch selection of exactly four functions depending on a direction of force thereon. The input device has at least three control keys, each of the control keys being configured to perform a function in conjunction with at least one other key.

Abstract: A multifunction keypad includes a touch-sensitive surface with a number of regions designated as keys. A processor, associated with the touch-sensitive surface, is configured to: (i) identify a contact location at which an object comes into contact with the touch-sensitive surface, (ii) determine a selected one of the keys corresponding to the one of the regions within which the contact location is located, (iii) identify a direction of motion of the object across the touch-sensitive surface relative to the contact location, and (iv) select in a manner conditional upon at least the direction of motion one of a plurality of functions associated with the selected key.