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A personal computer with an embedded finger print sensor

IP.com Disclosure Number: IPCOM000013729D
Original Publication Date: 2001-May-30
Included in the Prior Art Database: 2003-Jun-18
Document File: 3 page(s) / 54K

Publishing Venue

IBM

Abstract

Disclosed is the method to substitute the only one procedure that is to lay a finger on a finger print sensor for the two procedures; to turn on a power switch on a personal computer and to authenticate user. Up to now, the finger print sensor on the personal computer is connected to an I/O controller that is controlled by a CPU. A power controller that manages a power supply is embedded on the personal computer. The Power controller starts supplying electric power to the CPU, the I/O controller and the finger print sensor to turn on the power switch, and stop supplying to turn on the power switch again. The power controller is always supplied electric power to watch the status of the power switch. This method uses the finger print sensor and the controller of the finger print sensor instead of the power switch (Fig.1). When a finger is laid on the finger print sensor, the finger print sensor detects it, then the controller judges whether the finger print is the authorized one or not. If the finger print is authorized, the finger print controller indicates "power on" to the power controller with the predefined and secured way, and BIOS/OS starts to run (Fig.2) From the usability point of view, this method makes it simple and convenient to start up the personal computer.

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A personal computer with an embedded finger print sensor

Disclosed is the method to substitute the only one procedure that
is to lay a finger on a finger print sensor for the two
procedures; to turn on a power switch on a personal computer and
to authenticate user.

Up to now, the finger print sensor on the personal computer is
connected to an I/O controller that is controlled by a CPU. A
power controller that manages a power supply is embedded on the
personal computer. The Power controller starts supplying electric
power to the CPU, the I/O controller and the finger print sensor
to turn on the power switch, and stop supplying to turn on the
power switch again. The power controller is always supplied
electric power to watch the status of the power switch.

This method uses the finger print sensor and the controller of
the finger print sensor instead of the power switch (Fig.1). When
a finger is laid on the finger print sensor, the finger print
sensor detects it, then the controller judges whether the finger
print is the authorized one or not. If the finger print is
authorized, the finger print controller indicates "power on" to
the power controller with the predefined and secured way, and
BIOS/OS starts to run (Fig.2)

From the usability point of view, this method makes it simple
and convenient to start up the personal computer.

From the security point of view, this method makes secure against
attack , because the system is not turned on power till
authentication is completed.

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