Patent ID: 7912157
Filing Date: 2011-03-22
Classification: H04L

Abstract:
1. A method of computing timing and frequency offset in sub-carriers in an Integrated Services Digital Broadcasting-Terrestrial (ISDB-T) receiver system, said method comprising: storing said sub-carriers in a storage device; using a processor for dividing said sub-carriers into two sub-sets, wherein said sub-sets comprise an equal number of sub-carriers; removing bad sub-carriers from a first sub-set of said sub-sets; removing sub-carriers from a second sub-set of said sub-sets that correspond to said bad sub-carriers from said first sub-set of said subsets; computing a phase difference on each sub-carrier from each sub-set responsive to the removing steps; computing mean phase differences of each of said sub-sets responsive to the computing step; and computing a timing offset and a frequency offset in said sub-carriers using the computed mean differences.