发明名称 |
Multitask processing system with variable clock rate for power saving |
摘要 |
<p>A multitask processing system which can fix clock within a system request by eliminating a problem that, because of switching of a corresponding system clock predetermined to a task being in a running state for the reduction of power consumption, the entire processing ability deteriorates if a plurality of task processing requests occur simultaneously. This multitask processing system comprises a clock rate determining section for obtaining a system clock rate on the basis of task processing request time information depending on a task to be executed and task managing information including the number of tasks and processing contents for each task and a clock producing section for producing a clock for operating the system in accordance with clock frequency information based upon the rate determination. The clock rate determining section is equipped with a table in which a plurality of clock frequencies are set, so that the system clock rate is determined by selecting one from the plurality of set clock frequencies on the basis of a time settled from the task managing information and the task processing request time.</p> |
申请公布号 |
EP0794481(A2) |
申请公布日期 |
1997.09.10 |
申请号 |
EP19970103605 |
申请日期 |
1997.03.05 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
GOUZU, TOMONOBU;ASATSU, TORU;SHIMURA, KAZUO;KOSAI, ATSUSHI;KAMBE, HIDETOSHI |
分类号 |
G06F1/32;(IPC1-7):G06F1/32 |
主分类号 |
G06F1/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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