Computer graphics processing and selective visual display system – Display peripheral interface input device – Including keyboard
Reexamination Certificate
2006-07-11
2006-07-11
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Including keyboard
C341S022000
Reexamination Certificate
active
07075518
ABSTRACT:
A method for updating a keyboard controller in a notebook computer is introduced. The notebook computer has a keyboard controller which further includes a random access memory (RAM) and a read only memory (ROM). Firstly, the updating method has the keyboard controller receive a command for updating the firmware. Then, a keyboard status and a command byte of the keyboard controller are stored into the RAM. The method has the keyboard controller enter into an idle status and/oror proceed to update the ROM. Further, the method determines whether or not the ROM has been completely updated. If the ROM has not been completely updated, the method will wait until the ROM is completely updated. Otherwise, a shutdown identifier is set and the keyboard controller is reset. Thereby, the notebook computer system will not be shut down and the associated keyboard and mouse can still function after the firmware for the keyboard controller is updated under the Windows environment.
REFERENCES:
patent: 5805882 (1998-09-01), Cooper et al.
Bacon & Thomas PLLC
Dinh Duc Q.
Hjerpe Richard
Insyde Software Corp.
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