Re-inserting VBI data using OSD apparatus and method
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United States of America Patent
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Dec 25, 2007
Grant Date -
Mar 17, 2005
app pub date -
Sep 16, 2003
filing date -
Sep 16, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of reinserting Vertical Blanking Interval (VBI) data in a digital video signal includes creating a gray scale palette in a an On Screen Display (OSD) memory; sizing a VBI area in an OSD memory; locating a VBI area in an OSD memory; generating a VBI luma waveform bitmap; and overlaying the VBI luma waveform bitmap in a DVB video bit stream according to the gray scale palette, size and location data stored in the OSD memory.
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