Patent Document ID: 8135582
Application ID: 12626956

Base Claim:
1. A reduced keyboard system for text input comprising: a first keyboard having a first plurality of keys, the keys being adapted to be keystroked for input of a word; a virtual keyboard having a plurality of virtual keys, the plurality of virtual keys corresponding respectively to the first plurality of keys and wherein the virtual keyboard is adapted to generate a linear pattern from the keystroked keys of the first keyboard, wherein the linear pattern is formed exclusively of segments forming at least one corresponding angle, the corresponding angle having a value chosen from the list including zero and 180 degrees; and a dictionary database associated with the virtual keyboard, the dictionary database having a plurality of classes wherein each of the classes contains at least one candidate word having first and last letters corresponding to predetermined keys of the virtual keyboard, wherein the linear pattern and dictionary database are adapted to enable recognition and disambiguation of the inputted word.

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Claim 2:
2. The reduced keyboard system according to claim 1 , wherein the virtual keyboard has a linear configuration.