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US Patent 7774632 Adaptive power management method in portable electronic device

Patent 7774632 was granted and assigned to Samsung on August, 2010 by the United States Patent and Trademark Office.

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Is a
Patent
Patent
1

Patent attributes

Current Assignee
Samsung
Samsung
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
77746321
Patent Inventor Names
Tae-kwon Noh1
Date of Patent
August 10, 2010
1
Patent Application Number
117753001
Date Filed
July 10, 2007
1
Patent Primary Examiner
‌
Dennis M. Butler
1
Patent abstract

A power management method in a portable electronic device includes storing a plurality of pieces of sub-state information indicating setting states of functions from a user interface (UI) of the portable electronic device, constructing a field by combining sectors, each formed with a predetermined number of bits, indicating the plurality of pieces of sub-state information, analyzing the sub-state information of the field, and selecting a clock frequency corresponding to the analyzed field from among clock frequencies pre-set to operate a central processing unit (CPU) of the portable electronic device and applying the selected clock frequency to the CPU. Accordingly, by combining information on sub-states indicating functions currently set in a portable electronic device in order to construct a field and selecting a clock frequency optimal for the field, an unnecessary increase of a CPU clock frequency in multi-tasking can be prevented, and power of a CPU can be efficiently managed.

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