Method for changing channel in digital cable set top box

摘要

The present invention is a method for improving the conversion rate of the digital cable broadcast receiver in the scrambled channel of the open cable -based relates . In particular, the present invention is transferred to the POD module , create a CA_PMT using the PMT and CA descriptor happened if the PSI parsing previously scrambled channel while you switch channels the channel previously saved At the end of the tune to that channel as soon as the machine PSI instructs the descrambler . Therefore, after the end of parsing PSI CA_PMT make it possible to improve the channel switching speed compared to the conventional method for transmitting a POD module .