VIDEO SIGNAL FORMAT SECONDARY-CONVERSION METHOD, TIME CODE SIGNAL TRANSMISSION METHOD, AND TIME CODE TRANSMITTING APPARATUS

摘要

When a time code signal is transmitted that corresponds to a video signal having been subjected to a format conversion causing a variation in the number of frames per second, information indicative of the frame position of the video signal whose video data varies due to the format conversion is attached to the time code signal to be transmitted. Additionally, information indicative of the state of synchronism between the frame conversion period at the time of the format conversion and the time code process is also attached to the time code signal to be transmitted. In this way, the relationship between the frame position and the time code can be precisely grasped. Further, this time code signal is used to precisely implement a secondary conversion (an inversion) of the video signal.