ENCODING RATE DETECTION METHOD AND ENCODING RATE DETECTION DEVICE

摘要

An encoding rate detection method for detecting a predetermined encoding rate in a received encoded signal decodes the encoded signal by a 1st synchronization signal having a frequency corresponding to a 1st encoding rate to thereby generate a 1st decoded signal (ST11), and determines whether or not a synchronization is taken for the 1st decoded signal (ST12). In case where the synchronization is not taken, there is generated only a 2nd synchronization signal having a frequency corresponding to a 2nd encoding rate whose difference from the 1st encoding rate is smaller in comparison with an allowable value of the encoding rate decided by upper and lower limit values (ST13, 17).