发明申请
- 专利标题: DMA latency compensation with scaling line buffer
- 专利标题(中): 使用缩放行缓冲区的DMA延迟补偿
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申请号: US11090465申请日: 2005-03-25
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公开(公告)号: US20060125835A1公开(公告)日: 2006-06-15
- 发明人: Li Sha , Qifan Huang
- 申请人: Li Sha , Qifan Huang
- 主分类号: G09G5/36
- IPC分类号: G09G5/36
摘要:
A video processing system configured with DMA latency compensation is disclosed. This compensation helps minimize or otherwise mitigate shortages of data to the display, thereby improving the quality of displayed video. A relatively small line buffer is used to stage data for video processing. Should an underflow of data occur (where the buffer reading process is ahead of the buffer writing process), data is read from the previous line buffer. This not only prevents shortages of data to the display, but also provides data that is more likely to be relevant to the actual scene being displayed (as compared to random data).
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