Patent ID: 8923145
Filing Date: 2014-12-30
Classification: H04N

Abstract:
1. A method for validating Service Information (SI) and Program Specific Information (PSI) of a broadcast table in an electronic device, the method comprising: receiving a first cache signature from a broadcast source; retrieving a second cache signature from a memory; identifying differences between the first cache signature and the second cache signature; fully updating the broadcast table based on identifying that a first identification of the first cache signature is different from a second identification of the second cache signature; and fully updating the broadcast table or updating a portion of the broadcast table based on identifying that the first identification of the first cache signature is identical to the second identification of the second cache signature, wherein a first count value of the first cache signature increases whenever there is a change in the broadcast table, wherein the identifying further comprises: determining a count difference between the first count value of the first cache signature and a second count value of the second cache signature, based on determining that the first identification is identical to the second identification.