INTERFACE ASSURANT A DES UTILISATEURS MULTIPLES UN ACCES PROTEGE A LEUR DISQUE RIGIDE

MULTIPLE USER SECURE HARD DRIVE INTERFACE

Abrégé anglais

Abstract Not Yet Available

Revendications

Claims:

~ A multiple user interface for connecting two or more hard drives to a personalcomputer securing the data and programs for one or more users, comprising:
~ a hard drive electromechanical selector switch (1) with lock for the selection of access
to one or more hard drives A (14), B (8), C etc.
~ a selector switch with lock (1) is mounted on surface of the personal computer enclosure allowing access and operation by one or multiple users.
~ a switch A position of said selector switch (1) will enable access for only one hard
drive A (14) and disable access to the hard drive B (8)
~ a switch B position of said selector switch (1) will enable access for only hard drive B
(8) and disable access to the hard drive A (14)
~ after power on or changing the position of said selector switch (1) the personal
computer is reset (17) and boot either to the hard drive A (14) or to the hard drive B
(8) etc.

~ a debounce and a reset circuit (2) is connected to said selector switch (1) and said
reset interface circuit (2) means for resetting the central processor of the personal
computer (16) after switching said selector switch (1) from position A or B.
~ an output of said debounce and reset circuit(2) is connected to the enable either
input(9) of tristate buffer (10) or to the input (3) of tri state buffer (4) to isolate a
hard drive interface (12) and hard drive interface (6) of said hard drive A(14) and said
hard drive B(8) from common system bus (15) of the personal computer (16), and
isolate means only one hard drive A(14) or the hard drive B(8) is enabled and active
according the position A or B of said selector switch (1).

Description

21 97502
~ . . .
MULTIPLE USER SECURE TIARD DRIVE INTERFACE.
Inventor: Skobla; Joseph, Oakville, Ontario, Canada
D~ )tion: A multiple user secure interface (MUI) is provided for the connection of
two or more hard drives to a personal computer. MUI allows to ensure a secured data for
multiple users of the personal computer. The MUI comprises a selector switch with lock
debounce reset circuit, tristate buffers, and hard drive inte.rf~ce. Tristate buffers and hard
drives interfaces are connected to the computer system bus. The selector switch is
mounted on the computer enclosure and allows selection of the hard drive by the user.
The user A will switch selector to the position A which will enable the hard drive A,
personal computer will boot to A drive, only data and prograrns stored on A drive now
is available to the user A. The hard drive B is now disable. If the switch is in position B
the personal computer will boot to the hard drive B and only data and programs stored on
the hard drive B is available to the user B. The hard drive A is now disable. The
electromechanical switch - lock is set up to operate either with two different keys or with
one key. First option will allow to have equal access to the personal computer for user A
to the hard drive A and user B to the hard drive B. Second option allow to one user
(master) to have secure access to the hard drive A and to the hard drive B. Master user
can switch and lock the selector to the position B which allow to user B access only B
hard drive.

Dessin représentatif