Multiprocessor system and control method where a power saving mode control that safely stops/starts accesses to a shared memory

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United States of America Patent

PATENT NO 8886978
SERIAL NO

13617938

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Abstract

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A multiprocessor system configured to share processes by a main system having a first processor and a subsystem having a second processor, comprises a first shared memory configured to receive accesses from the main system and the subsystem, a second memory configured to receive access from the subsystem at a power saving mode, a stop unit configured to stop accesses from the main system and the subsystem to the first shared memory when the subsystem enters the power saving mode, and a switching unit configured to switch an access destination of the subsystem from the first shared memory to the second memory when the subsystem enters the power saving mode.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aoki, Hitoshi Urayasu, JP 99 832

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