| 摘要 |
PROBLEM TO BE SOLVED: To synchronize all signal processing circuits or input output circuits connecting to a bus in a video signal processor provided with a bus inputting/ outputting data and commands. SOLUTION: This processor is provided with a synchronizing signal generating circuit 104 to generate a synchronizing signal 107, and sends a synchronizing signal 107 together with a compressed video signal and a command on a bus 105 and a video expansion circuit 103 applies expansion processing to a compressed video signal based on the synchronizing signal 107 outputted from the bus 105. Thus, accurate synchronization of the video expansion circuit 103 is taken by using the synchronizing signal 107 and the synchronizing signal 107 is sent onto the bus 105, then no special signal line to send the synchronizing signal other than the bus 105 is not required. |
