METHOD AND APPARATUS FOR TRANSFERRING AUDIO/VIDEO/DATA THROUGH SYSTEM BUS

摘要

PROBLEM TO BE SOLVED: To transmit signals in a jitter-free state by using a time stamp in a super packet for generating a synchronizing clock for processing a transport packet. SOLUTION: An edge detector 31 in the signal sorter 202 of a clock generator used for a recorder fetches the count value of a counter 36 incorporated in a system clock generator 208 to a latch 35 in response to the transition of a frame clock. At the same time, the detector 31 separates the component of a super packet by supplying a control signal which controls a demultiplexer 32 and stores a time stamp in a memory 34. A clock controller 39 reads the values of the successively supplied time stamps, forms an error signal proportional to the difference between the values of the time stamps, and supplies the error signal to a voltage-controlled oscillator 37. The oscillator 37 generates a system clock which is synchronized to the time stamp in the super packet. Therefore, the signal packet used by the recorder becomes a substantially jitter- free packet.