Invention Grant
US07660512B2 Systems and methods for managing frame rates during multimedia playback
有权
在多媒体播放期间管理帧速率的系统和方法
- Patent Title: Systems and methods for managing frame rates during multimedia playback
- Patent Title (中): 在多媒体播放期间管理帧速率的系统和方法
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Application No.: US10686969Application Date: 2003-10-16
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Publication No.: US07660512B2Publication Date: 2010-02-09
- Inventor: Charles R. Kellner, Jr. , William R. Sanders , Darren R. Davis
- Applicant: Charles R. Kellner, Jr. , William R. Sanders , Darren R. Davis
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Lee & Hayes, PLLC
- Main IPC: H04N9/79
- IPC: H04N9/79 ; H04N5/91 ; H04N7/00 ; H04N7/12 ; H04N7/16 ; H04N7/26 ; H04N7/173 ; H04N11/02 ; G06F3/00 ; G06F13/00 ; G06F15/173 ; G09G5/00 ; G11B21/08

Abstract:
Systems and methods for managing frame rates during multimedia playback are described herein. The ideal playback timing associated with video data is determined. If an actual playback timing of the video data lags the ideal playback timing, a frame rate associated with the video data is varied using a smoothing function to recover toward the ideal playback timing. An iterative frame-dropping algorithm is applied to vary the frame rate in accordance with the smoothing function. The smoothing function incorporates as a variable an average delay associated with playback of frames in the video data.
Public/Granted literature
- US20050084237A1 Systems and methods for managing frame rates during multimedia playback Public/Granted day:2005-04-21
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