Invention Grant
- Patent Title: Video and graphics system with video scaling
- Patent Title (中): 具有视频缩放功能的视频和图形系统
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Application No.: US10843657Application Date: 2004-05-11
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Publication No.: US07991049B2Publication Date: 2011-08-02
- Inventor: Alexander G. MacInnis , Chengfuh Jeffrey Tang , Xiaodong Xie , Vivian Hsiun
- Applicant: Alexander G. MacInnis , Chengfuh Jeffrey Tang , Xiaodong Xie , Vivian Hsiun
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McAndrews, Held & Malloy, Ltd.
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N11/02

Abstract:
A video and graphics system has a reduced memory mode in which video images are reduced in half in horizontal direction during decoding. The video and graphics system includes a video decoder for decoding MPEG-2 video data. The video images may not be downscaled in the horizontal direction when no bi-directionally predicted pictures are used. The video and graphics system may output an HDTV video while converting the HDTV video and providing as another output having an SDTV format or another HDTV format. The output having an SDTV format may be recorded using a video cassette recorder (VCR) while the HDTV video is being displayed.
Public/Granted literature
- US20040208245A1 Video and graphics system with video scaling Public/Granted day:2004-10-21
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