Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus access regulation
Reexamination Certificate
2006-07-18
2006-07-18
Lee, Christopher E. (Department: 2112)
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus access regulation
C710S309000, C710S244000, C711S151000
Reexamination Certificate
active
07080176
ABSTRACT:
In a bus control device including an external interface, internal units, a memory interface, and an internal bus, the memory interface monitors the usage pattern of the internal bus, and in a case where the internal unit is not using the internal bus, a priority processing interval for allowing only the external interface to use the internal bus is set, thereby prohibiting the internal units from using the internal bus during the priority processing interval.
REFERENCES:
patent: 6333745 (2001-12-01), Shimomura et al.
patent: 6519666 (2003-02-01), Azevedo et al.
patent: 6636913 (2003-10-01), Batchelor et al.
patent: 63-181068 (1988-07-01), None
patent: 7-334455 (1995-12-01), None
Fukue Tetsu
Matsushita Kenji
Hamre Schumann Mueller & Larson P.C.
Lee Christopher E.
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