Motorola Corporation

Victoria Lyustin

Jin Guo

Charles Yimin Wu

Robert M Harman

Ying Y Chang

Ali Ebrahimi

A user interface () of a portable electronic device () includes a plurality of keys (). The user interface () includes a first group of keys representing vowel characters (), and a second group of keys representing consonant characters (). The second group of keys is separate from the first group of keys. For the first group of keys, a first key represents leading vowels (), a second key represents above and below vowels (), and a third key represents following vowels (). The second group of keys may be subdivided into phonetic consonant groups (FIGS.&) or alphabetic consonant groups (FIGS.&).

User interface of a keypad entry system for character input

The present invention is a user interface () for an ideographic character input device () comprising three rows () of adjacent input keys. A first row () includes keys that represent linear character strokes, a third row () includes keys that represent non-linear character strokes, and the second row () includes keys that represent a linear character stroke, a non-linear character stroke and a dot. The user interface () may also function as a numeric keypad in which the first row () includes keys 1 through 3, the second row () includes keys 4 through 6 and the third row () includes keys 7 through 9. The three rows () include single stroke keys corresponding to individual character strokes used to form a particular ideographic character. The user interface also includes at least one combination stroke key corresponding to a particular activation sequence of the single stroke keys used to form the ideographic character. A processor () of the device () is capable of forming the ideographic character, or a portion thereof, in two ways: upon selection of the particular activation sequence of the single stroke keys and upon selection of the combination stroke key. A display () is coupled to the processor () to display the ideographic character, or a portion thereof.

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South San Francisco, CA, United States of America

Victoria Lyustin