Patent ID: 7269340
Filing Date: 2007-09-11
Classification: G11B,H04N

Abstract:
1. An MPEG data recorder comprising: an interface that receives data packets from a digital transmission line transmitting MPEG data in real time, and extracts predetermined MPEG data from received packets and outputs the extracted MPEG data as a data signal; a data rate detector that determines a data rate of the MPEG data based on a valid data period, during which the data signal is outputted from the interface; and a recording mode selector that selects a recording mode based on the determined data rate, wherein, the interface outputs a data signal as an MPEG packet having a predetermined amount of data, and outputs a synchronizing signal in synchronization with the MPEG packet; and the data rate detector counts the synchronizing signals outputted in a predetermined duration for detection, and detects the data rate of MPEG data based on the counted value.