Method for updating a keyboard controller in a notebook computer
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United States of America Patent
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Jul 11, 2006
Grant Date -
Sep 18, 2003
app pub date -
Jul 11, 2002
filing date -
Mar 13, 2002
priority date (Note) -
In Force
status (Latency Note)
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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.
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