Information processing apparatus and a control method

Details Information processing apparatus and a control method Information processing apparatus and a control method

1996-04-22

1999-08-10

DeCady, Albert

H04K 100

Patent

active

059371579

ABSTRACT:
According to the present invention, illegal invasion (i.e., access to secret data) from an installed PC card of an information processing apparatus can be appropriately prevented. When an operating mode enters a security mode, a personal computer performs a pseudo operation as though a device were not installed therein, regardless of whether the device is actually installed. During the security mode, therefore, power is not supplied to the installed device so that it does not become active. During this mode, the information processing apparatus can not exchange data with the installed device.

REFERENCES:
patent: 5012514 (1991-04-01), Renton
patent: 5426762 (1995-06-01), Nakagawa
patent: 5430867 (1995-07-01), Gunji
patent: 5442704 (1995-08-01), Holtey
patent: 5533125 (1996-07-01), Bensimon et al.
patent: 5600841 (1997-02-01), Culbert

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