Central processing unit reset device and a reset method for a central processing unit
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United States of America Patent
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Dec 15, 1998
Grant Date -
N/A
app pub date -
Dec 6, 1996
filing date -
Dec 8, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A central processing unit reset device for a portable computer system having no hardware reset switch. The central processing unit reset device includes a central processing unit having a reset terminal. A keyboard contains a plurality of discrete keys including a reset key that are independently operable by manual depression. The reset key serves as a reset switch for allowing a user to reboot an operating system of the central processing unit even when the central processing unit is locked in an infinite loop. A controller is electrically connected to the keyboard to scan the user's input through the keyboard and generate a reset request signal in response to the user's depression of said reset key on the keyboard. Finally, a reset driving circuit is electrically connected to the controller to generate a central processing unit reset signal to the reset terminal to reboot the operating system of the central processing unit.
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