| 摘要 |
<p>The present invention relates to a linear time code (LTC) generator (110) that is adapted to generate LTC data (208). The LTC generator (110) comprises a rising edge detector (302) that is adapted to detect a frame sync input (204) corresponding to a beginning of a frame time of video data and to generate a first synchronization signal corresponding to the frame sync input (204) and a frame length measurement block (304) that is adapted to count a number of clock cycles in the frame time. The LTC generator (110) further comprises a bit rate calculator (306) 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 (308) that is adapted to generate a second synchronization signal corresponding to the bit rate. Finally, the LTC generator (110) comprises an output device (310) that is adapted to insert a first data bit of the LTC data (208) into a digital bit stream according to the first synchronization signal (204) and to insert subsequent data bits of the LTC data (208) into the digital bit stream according to the second synchronization signal (202).</p> |
