Invention Grant
- Patent Title: Video and graphics system with video scaling
- Patent Title (中): 视频和图形系统与视频缩放
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Application No.: US13195115Application Date: 2011-08-01
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Publication No.: US08848792B2Publication Date: 2014-09-30
- Inventor: Alexander MacInnis , Chengfuh Jeffrey Tang , Xiaodong Xie , Vivian Hsiun
- Applicant: Alexander 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: Foley & Lardner LLP
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N11/02 ; H04N11/04 ; H04N19/423 ; H04N5/04 ; H04N9/45 ; H04N21/434 ; H04N19/59 ; G06T9/00 ; H04N7/01 ; H04N19/61 ; H04N21/426 ; G09G5/34 ; G09G5/06 ; H04N19/44 ; G09G5/36 ; G09G5/12 ; H04N5/445 ; H04N5/14 ; H04N19/436 ; H04N21/47 ; G09G5/00 ; H04N21/43 ; H04N21/431 ; H04N5/45 ; H04N9/64 ; G09G5/14 ; H04N21/4402 ; G09G5/28 ; G06T1/20 ; H04N21/422 ; H04N19/42 ; H04N21/443 ; G09G5/02 ; H04N5/44 ; H04N5/46 ; H04N5/12 ; H04N11/20 ; H04N11/14
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
- US20110280307A1 Video and Graphics System with Video Scaling Public/Granted day:2011-11-17
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