公开(公告)号：US20090278516A1

公开(公告)日：2009-11-12

申请号：US12436136

申请日：2009-05-06

申请人： Hrishikesh BHAGWAT ,  Rupak GHAYAL ,  Saumitra SINGH ,  Pawan GUPTA ,  Prakash EASWARAN

发明人： Hrishikesh BHAGWAT ,  Rupak GHAYAL ,  Saumitra SINGH ,  Pawan GUPTA ,  Prakash EASWARAN

IPC分类号： G05F1/10

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： A transient recovery circuit for switching devices. The transient recovery circuit includes a detecting circuit for detecting a rapid transient in an output voltage of a switching device by detecting a rate of the output voltage transient; an auxiliary controlling circuit in a feedback loop of the switching device for correcting the output voltage by changing a bandwidth of the feedback loop if the rapid transient is detected; and an initializing circuit for initializing the feedback loop to expected operating points in a continuous conduction mode after correcting the output voltage.

摘要翻译： 用于开关器件的瞬态恢复电路。 瞬态恢复电路包括检测电路，用于通过检测输出电压瞬变的速率来检测开关装置的输出电压中的快速瞬变; 所述开关装置的反馈环路中的辅助控制电路，用于通过在检测到所述快速瞬变时改变所述反馈回路的带宽来校正所述输出电压; 以及用于在校正输出电压之后将连续导通模式中的反馈回路初始化为期望工作点的初始化电路。

公开(公告)号：US20100104004A1

公开(公告)日：2010-04-29

申请号：US12258238

申请日：2008-10-24

申请人： Smita WADHWA ,  Srinath TV ,  Pawan GUPTA

发明人： Smita WADHWA ,  Srinath TV ,  Pawan GUPTA

IPC分类号： H04N7/12

CPC分类号： H04N19/12 ,  G06T3/40 ,  H04N19/136 ,  H04N19/17

摘要： Techniques are described to encode video content for mobile devices. A video content that is to be transmitted to a mobile device is received and different scenes are determined for the video content. For each scene that is found in the video content, one or more analysis techniques are performed on the scene. Based upon the results of the analysis techniques, the portion of the image to retain on each scene is determined. Finally, the video content containing the portion of the image on each scene to be retained is encoded based upon the type of the mobile device that will display the video content. The location and dimensions of each portion to be retained may vary from scene to scene, as these characteristics are determined on a per-scene basis.

摘要翻译： 描述技术来编码用于移动设备的视频内容。 接收要发送到移动设备的视频内容，并为视频内容确定不同的场景。 对于在视频内容中找到的每个场景，在场景上执行一个或多个分析技术。 基于分析技术的结果，确定保留在每个场景上的图像部分。 最后，根据将显示视频内容的移动设备的类型，对包含要保留的每个场景上的图像部分的视频内容进行编码。 每个要保留的部分的位置和尺寸可能因场景而异，因为这些特征是在每个场景的基础上确定的。