Mobile device chip and mobile device controlling method therefor
AssigneeMediatek Inc.
InventorChih-Ping Lin
Life of this patent
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Abstract
A mobile device chip is provided. The mobile device chip includes a main processor, a multimedia processor, and a direct memory access (DMA) circuit. The multimedia processor is electrically coupled to the main processor. The DMA circuit accesses storage, and the DMA circuit is electrically coupled to the multimedia processor. When the mobile device chip operates in a normal mode, the main processor provides file accessing information of at least part of an audio file stored in the storage to the multimedia processor. When the mobile device chip operates in a power-saving mode, the multimedia processor obtains the data of the at least part of the audio file stored in the storage through the DMA circuit according to the file accessing information provided by the main processor.
Claims20
A mobile device chip, comprising:
- a main processor;
- a multimedia processor, electrically coupled to the main processor;
- and
- a direct memory access (DMA) circuit, for accessing a storage, the DMA circuit being electrically coupled to the multimedia processor;
- wherein when the main processor operates in a normal mode, the main processor provides file accessing information of at least part of an audio file stored in the storage to the multimedia processor;
- wherein when the main processor and the multimedia processor operate in a power-saving mode, the multimedia processor obtains the data of the at least part of the audio file stored in the storage through the DMA circuit according to the file accessing information provided by the main processor.
A mobile device controlling method, for a mobile device chip comprised a main processor, a multimedia processor, and a direct memory access (DMA) circuit;
- the multimedia processor being electrically coupled to the main processor, the DMA circuit accessing a storage and being electrically coupled to the multimedia processor;
- the method comprising:
- providing file accessing information of at least part of an audio file stored in the storage to the multimedia processor by the main processor when the main processor operates in a normal mode;
- and
- obtaining the data of the at least part of the audio file stored in the storage through the DMA circuit according to the file accessing information by the multimedia processor when the main processor and the multimedia processor operate in a power-saving mode.
Dependencies are inferred from the claim text.