Mobile device chip and mobile device controlling method therefor
US8914657B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2011 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Apr 20, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.