Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Having specialized input
Reexamination Certificate
2004-04-20
2008-12-02
Malzahn, David H (Department: 2193)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Having specialized input
Reexamination Certificate
active
07461105
ABSTRACT:
On a portable electronic device, multiple-position toggle button data entry keys are provided within the data entry keypad. A controller detects activation of each multiple-position toggle button data entry key on the keypad by a user, and also detects the number of times the data entry key is activated. The controller then accesses a key map in memory to determine the letter or numeric digit selected by the user. All letters and numbers represented on the communication device may be activated with no more than two depressions or activations of a corresponding toggle button.
REFERENCES:
patent: 4029915 (1977-06-01), Ojima
patent: 5508978 (1996-04-01), Kalbermatter et al.
patent: 5515305 (1996-05-01), Register et al.
patent: 5852414 (1998-12-01), Yu et al.
patent: 6097964 (2000-08-01), Nuovo et al.
patent: 6173194 (2001-01-01), Vanttila
patent: 6483913 (2002-11-01), Smith
patent: 6606486 (2003-08-01), Cubbage et al.
patent: 6643371 (2003-11-01), Mager
patent: 2002/0180708 (2002-12-01), Kaelbling
patent: 2003/0048894 (2003-03-01), Mager
Malzahn David H
Mayer & Williams PC
Sony Corporation
Sony Electronics Inc.
Williams Esq. Karin L.
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