US 6,982,658 B2
Keypad layout for alphabetic symbol input
Jin Guo, Sunnyvale, Calif. (US)
Assigned to Motorola, Inc., Schaumburg, Ill. (US)
Filed on Mar. 22, 2001, as Appl. No. 9/814,663.
Prior Publication US 2002/0135499 A1, Sep. 26, 2002
Int. Cl. H03M 11/00 (2006.01)
U.S. Cl. 341—28 4 Claims
OG exemplary drawing
 
1. A keypad layout for a hand-held electronic device comprising:
a plurality of keys, including keys “1” through “9” and “0”, configured for data entry of numbers and symbols of a Romanized Chinese phonetic alphabet, each key representing at least one symbol of a syllable initial symbol group or a syllable semi-initial symbol group of the Romanized Chinese phonetic alphabet,
wherein all keys representing symbols of the syllable initial symbol group are grouped separate from all keys representing symbols of the syllable semi-initial symbol group.