System and method for generating linear time code data
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United States of America Patent
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Oct 16, 2012
Grant Date -
Mar 12, 2009
app pub date -
Sep 5, 2008
filing date -
Sep 7, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a linear time code (LTC) generator that is adapted to generate LTC data. The LTC generator comprises a rising edge detector that is adapted to detect a frame sync input corresponding to a beginning of a frame time of video data and to generate a first synchronization signal corresponding to the frame sync input and a frame length measurement block that is adapted to count a number of clock cycles in the frame time. The LTC generator further comprises a bit rate calculator that is adapted to determine a bit rate of the frame time based on the number of clock cycles in the frame time and a bit rate counter block that is adapted to generate a second synchronization signal corresponding to the bit rate. Finally, the LTC generator comprises an output device that is adapted to insert a first data bit of the LTC data into a digital bit stream according to the first synchronization signal and to insert subsequent data bits of the LTC data into the digital bit stream according to the second synchronization signal.
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