| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that skipping or repeating occurs frequently if not securing a prescribed transmission rate because reproduction processing is performed on the basis of only a PCR (program clock reference) contained in a TS (transport stream) packet, in a conventional clock signal reproducing device for a TS. <P>SOLUTION: A clock signal reproducing circuit comprises a TS header parser 31 for detecting a PCR from a TS, a PCR register 37, a STC (system time clock) counter 38, an STC register 39, a switch 41, and a CPU 14, etc. In this circuit, when the prescribed transmission rate is secured, a latch signal outputted from the parser 31 is transmitted to the register 39 to perform clock signal reproducing processing on the basis of the PCR, and when the prescribed transmission rate is not secured, a latch signal outputted from the CPU 14 is transmitted to the register 39 to perform clock signal reproducing processing on the basis of time information outputted from a timer circuit 20. <P>COPYRIGHT: (C)2004,JPO |
