发明授权
US07365757B1 Method and apparatus for independent video and graphics scaling in a video graphics system
有权
用于在视频图形系统中独立视频和图形缩放的方法和装置
- 专利标题: Method and apparatus for independent video and graphics scaling in a video graphics system
- 专利标题(中): 用于在视频图形系统中独立视频和图形缩放的方法和装置
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申请号: US09213748申请日: 1998-12-17
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公开(公告)号: US07365757B1公开(公告)日: 2008-04-29
- 发明人: Edward G. Callway , Allen J. C. Porter , Chun-Chin David Yeh , Philip L. Swan
- 申请人: Edward G. Callway , Allen J. C. Porter , Chun-Chin David Yeh , Philip L. Swan
- 申请人地址: BB Christchurch
- 专利权人: ATI International SRL
- 当前专利权人: ATI International SRL
- 当前专利权人地址: BB Christchurch
- 代理机构: Vedder Price P.C.
- 主分类号: G09G5/00
- IPC分类号: G09G5/00 ; H04N9/74
摘要:
A method and apparatus for independent video and graphics scaling in a video graphics system is accomplished by receiving a video data stream, wherein the video data stream includes video data in a first format. A graphics data stream is also received, and the graphics data stream includes graphics data in a second format. The video data of the video data stream is scaled based on a ratio between the first format and a selected video format to produce a scaled video stream. Similarly, the graphics data of the graphics data stream is scaled based on a ratio between the second format and a selected graphics format in order to produce a scaled graphics stream. The scaled video stream and the scaled graphics stream are then merged to produce a video graphics output stream.
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