Patent ID: 8031717
Filing Date: 2011-10-04
Classification: H04N

Abstract:
1. A communication apparatus comprising: a receiver which receives a plurality of packets including an encoded content; and a control unit which controls the communication apparatus to perform functions of; generating a plurality of sequence data including a predetermined number of packets; generating management data including a header and a plurality of data tables generated in correspondence to a packet including an intra-coded content, wherein each data table includes a packet index area identifying a packet number corresponding to the packet including the intra-coded content, and the header includes a number of packet information areas identifying the predetermined packets and a packet index base value area to be used for correcting a packet index in the packet index area; storing the plurality of sequence data and the management data; and deleting at least one of the sequence data whose packets are to be completely deleted in response to a delete instruction; wherein the plurality of sequence data comprises first sequence data which includes at least one sequence data located before the deleted at least one sequence data and second sequence data which includes at least one sequence data located after the deleted sequence data, and the management data comprises first management data corresponding to the first sequence data and second management data corresponding to the second sequence data; wherein the first management data includes a first header whose packet index base value area stores no data and first data tables, and the second management data includes a second header whose packet index base value area stores a packet number indicating a packet at a head of packets included in the second sequence and second data tables; and wherein the control unit further controls the communication apparatus to perform a function of correcting the packet number of each data table included in the second management data by subtracting the packet number in the packet index base value area of the second header from the packet number of a data table of the second management data.