Application Processors, Mobile Devices Including The Same And Methods Of Managing Power Of Application Processors
AssigneeSamsung Electronics Co., Ltd.
InventorsYong-Ki Byun, Dong-Han Lee, Jae-Sop Kong
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Abstract
An application processor includes a memory controller, a display block and a power management unit. The memory controller controls an external memory that stores an image signal to be displayed on a display unit. The display block includes an internal frame buffer and a display controller and the display controller controls the image signal to be displayed on the display unit. The power management unit adaptively controls a power mode of the application processor based on a characteristic of the image signal to be displayed and a power control overhead index.
Claims22
An application processor, comprising:
- a memory controller configured to control a memory that stores an image signal;
- and
- a power management unit coupled to the memory controller;
- wherein the power management unit is configured to control a power mode of the application processor based on a characteristic of the image signal and based on a power control overhead index.
A mobile device, comprising:
- a display unit configured to display an image signal;
- a memory configured to store the image signal;
- and
- an application processor configured to transmit the image signal to the display unit;
- wherein the application processor comprises:
- a memory controller configured to control the memory;
- and
- a power management unit coupled to the memory controller;
- wherein the power management unit is configured to control a power mode of the application processor based on a characteristic of the image signal and a power control overhead index.
13-20. (canceled)
A method of operating an application processor including a memory controller that controls a memory that stores an image signal, the method comprising:
- determining a characteristic of the image signal;
- determining a power control overhead index;
- and
- controlling a power mode of the application processor in response to the characteristic of the image signal and the power control overhead index.
29-33. (canceled)
Dependencies are inferred from the claim text.