Patent ID: 8971404
Filing Date: 2015-03-03
Classification: H04N

Abstract:
1. A digital broadcast receiving apparatus comprising: a signal receiving unit for receiving and demodulating a digital broadcast signal and generating a digital broadcast stream in which a plurality of data packets carrying one or two or more broadcast programs are multiplexed; a tuning information table which is stored in a storage medium, and in which an interrelated plurality of tuning information related to each of one or two or more specific broadcast programs is recorded as plural stored tuning information; a data separating unit for executing a pre-filtering process, based on the stored tuning information, to separate an encoded stream of the tuned broadcast program and an interrelated plurality of latest tuning information related to the encoded stream from the digital broadcast stream; a decoding unit for performing a decoding process on the encoded stream separated by the data separating unit to generate broadcast program data; and a tuning control unit for concurrently executing a first reception confirmation process to decide whether or not first tuning information included in the latest tuning information is consistent with the stored tuning information and a second reception confirmation process to decide whether or not second tuning information in the latest tuning information is consistent with the stored tuning information, the second tuning information having greater relevance than the first tuning information to the encoded stream, wherein: the tuning control unit executes the first and second reception confirmation processes concurrently with the decoding process; continues the decoding process when it decides, in the first reception confirmation process, that the first tuning information is consistent with the stored tuning information and, in the second reception confirmation process, that the second tuning information is consistent with the stored tuning information; and suspends the decoding process when it decides, in the second reception confirmation process, that the second tuning information is inconsistent with the stored tuning information.