Pressure sensitive alphanumeric telephone keys

Details Pressure sensitive alphanumeric telephone keys Pressure sensitive alphanumeric telephone keys

2004-10-25

2008-11-18

D'Agosta, Stephen M (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S403000, C455S414100, C455S418000, C455S550100

Reexamination Certificate

active

07454237

ABSTRACT:
Electronic devices such as mobile telephones including an alphanumeric keypad and at least one shift key and methods for using the alphanumeric keypad and the at least one shift key to display and transmit characters over a wireless network using no more than two key strokes.

REFERENCES:
patent: 6184803 (2001-02-01), Burrell, IV
patent: 6286064 (2001-09-01), King et al.
patent: 6381468 (2002-04-01), Larsen et al.
patent: 6765556 (2004-07-01), Kandogan et al.
patent: 6885318 (2005-04-01), Bickerton
patent: 6919824 (2005-07-01), Lee
patent: 6980200 (2005-12-01), Goren
patent: 2002/0027549 (2002-03-01), Hirshberg
patent: 2002/0063687 (2002-05-01), Kim
patent: 2002/0097227 (2002-07-01), Chu et al.
patent: 2004/0070567 (2004-04-01), Longe et al.
patent: 2004/0080487 (2004-04-01), Griffin et al.

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