Coded data generation or conversion – Bodily actuated code generator – Including keyboard or keypad
Patent
1996-02-23
1997-08-26
Hofsass, Jeffery
Coded data generation or conversion
Bodily actuated code generator
Including keyboard or keypad
341 23, 341 28, 345169, 36470916, H03K 1794
Patent
active
056614764
ABSTRACT:
A method for selecting a symbol using an M-key keyboard in a personal information device (PID) divides the M keys into a first key group and a second key group. Each symbol to be recognized from the input key-strokes on the keyboard is assigned a unique two-keystroke sequence in which the first key and the second key of that two-keystroke sequence are selected from different key groups. When receiving keystrokes from the keyboard, two-keystroke sequences received from the keyboard are matched to the symbol assignments to derive which symbol is selected. This method is applicable not only for selecting letters from a European alphabet, such as the English or the Cyrillic alphabets, this method is applicable to selecting from a phonetic alphabet, such as the Pin-Yin system for Chinese characters and other phonetic systems in the Korean and Japanese languages as well.
REFERENCES:
patent: 4763252 (1988-08-01), Rose
patent: 5281966 (1994-01-01), Walsh
patent: 5408621 (1995-04-01), Ben-Arie
patent: 5473325 (1995-12-01), McAlindon
Ai Chuan David
Tsai Michael M. Y.
Wang Weijia
General Wireless Communications Inc.
Hill Andrew
Hofsass Jeffery
Kwok Edward C.
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