Invention Grant
- Patent Title: Video processing apparatus
- Patent Title (中): 视频处理装置
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Application No.: US12850690Application Date: 2010-08-05
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Publication No.: US08290339B2Publication Date: 2012-10-16
- Inventor: Toshiya Noritake
- Applicant: Toshiya Noritake
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Priority: JP2009-182999 20090806
- Main IPC: H04N5/92
- IPC: H04N5/92

Abstract:
Color difference signals of demodulated video are vertically filtered to be converted into 4:2:2 signals before subjected to OSD synthesis, after which those signals are once again vertically filtered as a sort of scaling to obtain the output resolution. As filtering is carried out in two stages, the frequency characteristic deteriorates. A video processor superimposes an OSD video signal on a 4:2:0 format video signal, and includes: a converting section for converting the OSD video signal into YUV signals; an OSD luminance signal scaling section for performing scaling on an OSD luminance signal included in the YUV signals; a luminance signal synthesizing section for synthesizing the scaled OSD luminance signal and the luminance signal of the 4:2:0 format video signal; an OSD color difference signal scaling section for performing scaling on OSD color difference signals included in the YUV signals; and a color difference signal synthesizing section for synthesizing the scaled OSD color difference signals and the color difference components of the 4:2:0 format video signal.
Public/Granted literature
- US20110038596A1 VIDEO PROCESSING APPARATUS Public/Granted day:2011-02-17
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