公开(公告)号：US20090070119A1

公开(公告)日：2009-03-12

申请号：US12204593

申请日：2008-09-04

Applicant: Heejong Yoo ,  Nidish R. Kamath ,  Eddie L.T. Choy ,  Johnny Kallacheril John ,  Samir K. Gupta

Inventor： Heejong Yoo ,  Nidish R. Kamath ,  Eddie L.T. Choy ,  Johnny Kallacheril John ,  Samir K. Gupta

IPC: G10L19/00

CPC classification number: G10L19/16 ,  G06F1/3203 ,  G06F3/162 ,  H04W52/0274

Abstract: Power savings in a mobile device is accomplished by generating audio samples by decoding a bitstream with a decoding system within the mobile device. The generated audio samples are transferred into at least one memory bank in a set of memory banks in a power saver block within the mobile device. Parts of the decoding system not involved in the storing of the generated audio samples are switched off after batch decoding a bitstream associated with multiple audio frames. The bitstream includes bits less than that found in one audio file. At least one of the memory banks in the set of memory banks is power collapsible. The fetching of the decoded by the decoding system can be synchronized with a paging channel of a modem in the mobile device. The transferred audio samples is a lossless compression and may occur after a re-encoding.

Abstract translation: 移动设备中的功率节省通过利用移动设备内的解码系统对比特流进行解码来生成音频样本来实现。 生成的音频样本被传送到移动设备内的节电块中的一组存储器组中的至少一个存储体。 在对与多个音频帧相关联的比特流进行批量解码之后，不涉及生成的音频样本的存储的部分解码系统被关闭。 比特流包括比在一个音频文件中发现的比特小的比特。 存储器组中的至少一个存储体是电源可折叠的。 由解码系统解码的提取可以与移动设备中的调制解调器的寻呼信道同步。 传输的音频样本是无损压缩，并且可能在重新编码之后发生。