发明名称 |
Multi-screen synthesis apparatus, method of controlling the apparatus, and program for controlling the apparatus |
摘要 |
There is provided a multi-screen synthesis apparatus that can execute display of video data and update of an OSD image without causing a user to feel a visual sense of incongruity, and reduce system costs. Periodic video source data and aperiodic OSD image data are written into a unified memory reserved for planes. The video source data and the OSD image data are read from the unified memory, based on a synthesis layout, for simultaneous display on a single display in a synthesized state. Video data to be written into the unified memory is decimated in units of a frame on an input video source-by-input video source basis. The decimation of the data is controlled based on display priority of the video data determined based on a multi-screen display layout.
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申请公布号 |
US7768576(B2) |
申请公布日期 |
2010.08.03 |
申请号 |
US20060464470 |
申请日期 |
2006.08.14 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
YUI HIDEAKI;TSUNODA TAKASHI |
分类号 |
G06F3/00;G06F3/14;G06F3/153;G09G5/00;G09G5/14;G09G5/377;G09G5/39;G09G5/393;H04N5/265;H04N5/278;H04N5/445;H04N5/45 |
主分类号 |
G06F3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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