Patent ID: 8813155
Filing Date: 2014-08-19
Classification: H04N

Abstract:
1. A method of receiving service information (SI) for building a channel map in an internet protocol television (IPTV) receiver, the method comprising: receiving a provisioning information table which includes information of location to receive a first stream carrying a master SI table and parsing the received provisioning information table; receiving the first stream carrying the master SI table which includes information of location to receive a second stream carrying at least one Virtual Channel Map table and version information of the other Virtual Channel Map table based on the parsed provisioning information table and parsing the received first stream; parsing the master SI table in the received first stream; receiving the second stream carrying the Virtual Channel Map table; and parsing the Virtual Channel Map table, wherein the provisioning information is customized to the IPTV receiver's location according to subscriber identification information provided from the IPTV receiver, the Master SI table includes a virtual channel map locator which is a pointer to a location of the Virtual Channel Map table corresponding to a Devices Group in a region of the IPTV receiver's location, and the IPTV receiver does not leave the first stream carrying the master SI table to detect version changes of the Virtual Channel Map table by using the version information, while the IPTV receiver leaves the second stream after receiving the Virtual Channel Map table.