Computer graphics processing and selective visual display system – Display peripheral interface input device – Including keyboard
Reexamination Certificate
2008-07-22
2008-07-22
Patel, Nitin (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Including keyboard
C345S172000
Reexamination Certificate
active
07403189
ABSTRACT:
A hand-held graphical calculator having a display and an input area is described. The input area includes a maximum of 30 keys and an input device. A hand-held graphical calculator package includes a hand-held graphical calculator for graphically displaying a user-entered expression and a user manual is described. The user manual is a single sheet of instructions describing operation of the graphical calculator.
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XP002409901; URL: http://education.it.com/guidebooks/graphing/8992p/8992bookeng.pdf[retrieved on Nov. 28, 2006] Chapter 2: operating the calculator TI-89.
European Communication for Application No. 04 254 474.2-1243 dated Feb. 12, 2008.
Hewlett--Packard Development Company, L.P.
Patel Nitin
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