Apparatus and method for a power control in a system using an embedded CPU
AssigneeSamsung Electronics Co., Ltd.
InventorsTae-Jin Kim, Jung-Hun Park, Hyuk-Chan Park, Ho-Seung Lee, Kang-Min Lee
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Abstract
A portable communication apparatus is configured to perform a method for power control of a Central Processing Unit (CPU) in a portable communication apparatus. The portable communication apparatus for power control of the CPU includes a CPU configured to report an operation status of the CPU and an overhead determiner. The CPU is also configured to change a power control level according to control of the overhead determiner. The overhead determiner is configured to determine an overhead of the CPU and to control the power control level of the CPU based on the overhead of the CPU.
Claims20
A method for power control of a Central Processing Unit (CPU) in a portable communication apparatus, the method comprising:
- increasing a power control level of the CPU in response to the CPU being continuously in an operation mode longer than a maximum operation time;
- and
- determining whether to change the power control level of the CPU based on an overhead of the CPU in response to elapse of a single overhead determination period after elapse of an immediately preceding overhead determination period.
A portable communication apparatus for power control of a Central Processing Unit (CPU), the portable communication apparatus comprising:
- a CPU configured to report an operation status of the CPU, wherein the operation status is one of an operation mode and a standby mode;
- and
- an overhead determiner configured to:
- receive the operation status of the CPU,
- increase a power control level of the CPU in response to the CPU being continuously in the operation mode longer than a maximum operation time, and
- determine whether to change the power control level of the CPU based on an overhead of the CPU in response to elapse of a single overhead determination period after elapse of an immediately preceding overhead determination period.
Dependencies are inferred from the claim text.