US Patent 7689101 Video audio recording system

A video audio recording system includes an inputting means for inputting video audio information, a video audio coding means for converting the input video audio information into digital information to write into a buffer means once and reading the written video audio information sequentially to output, a signal processing means for converting the video audio information output from the video audio coding means into a recording-medium writable format to write on a recording medium, and a controlling means for controlling respective means to control a recording of information on the recording medium. The controlling means monitors a write address and a read address of the buffer means, and then brings only a writing of information into the buffer means into a stop condition if a difference between both addresses is smaller than a predetermined threshold.