Electrical computers and digital data processing systems: input/ – Access locking
Reexamination Certificate
2005-08-30
2005-08-30
Dang, Khanh (Department: 2111)
Electrical computers and digital data processing systems: input/
Access locking
C710S260000
Reexamination Certificate
active
06938115
ABSTRACT:
A computer system and method are provided for executing multiple software of different mission-criticality. The computer system includes at least one access control circuit to prevent access to memory assigned to software of greater mission-criticality by software of lesser mission-criticality. The access control circuit is configured to be in a first position allowing access to a first memory for purposes of data retrieval and storage when the greater mission-critical software is executing and in a second position when a lesser mission-critical software is executing, allowing access to a second memory but preventing access to the first memory. The greater mission-critical software is configured to provide control signals to the access control circuit instructing the access control circuit to maneuver to the second position, when necessary, by generating an interrupt.
REFERENCES:
patent: 4698785 (1987-10-01), Desmond et al.
patent: 5421006 (1995-05-01), Jablon et al.
patent: 5630057 (1997-05-01), Hait
patent: 5822511 (1998-10-01), Kashyap et al.
patent: 5844986 (1998-12-01), Davis
patent: 6385718 (2002-05-01), Crawford et al.
patent: 6704802 (2004-03-01), Finch et al.
Carter DeLuca Farrell & Schmidt LLP
Dang Khanh
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