公开(公告)号：US20140257821A1

公开(公告)日：2014-09-11

申请号：US13788062

申请日：2013-03-07

申请人： Robert Adams ,  Maikael Mortensen

发明人： Robert Adams ,  Maikael Mortensen

IPC分类号： G10L21/06

CPC分类号： G10L21/06 ,  G06F1/3206 ,  G10L15/28 ,  G10L25/48 ,  G10L25/78 ,  G10L25/84 ,  G10L25/87 ,  G10L25/93 ,  G10L2015/088 ,  G10L2025/783 ,  G10L2025/786

摘要： A system for processor wake-up based on sensor data includes an audio buffer, an envelope buffer, and a processor. The audio buffer is configured to store a first data from a sensor. The first data is generated according to a first sampling rate. The envelope buffer is configured to store a second data, which is derived from the first data according to a second sampling rate, which is less than the first sampling rate. The processor is configured to wake up periodically from an idle state and read the second data from the envelope buffer. If the second data indicates an activity, the processor is configured to read the first data from the audio buffer. If the second data does not indicate an activity, the processor is configured to return to the idle state.

摘要翻译： 基于传感器数据的用于处理器唤醒的系统包括音频缓冲器，包络缓冲器和处理器。 音频缓冲器被配置为存储来自传感器的第一数据。 根据第一采样率产生第一数据。 包络缓冲器被配置为存储第二数据，其根据小于第一采样率的第二采样率从第一数据导出。 处理器被配置为周期性地从空闲状态唤醒并从包络缓冲器读取第二数据。 如果第二数据指示活动，则处理器被配置为从音频缓冲器读取第一数据。 如果第二个数据不表示活动，则处理器被配置为返回到空闲状态。