SUB-CHANNEL ACQUISITION IN A DIGITAL TELEVISION RECEIVER DESIGNED TO RECEIVE MOBILE/HANDHELD SIGNALS

摘要

When a change in sub-channel selection is made after a mobile/handheld (M/H) Frame is begun, an M/H receiver is for some time unable to correct byte errors by transverse Reed-Solomon (TRS) decoding of turbo decoding results Some of the IP packets compπse Service Map Table (SMT)-mobιle/handheld (MH) data used to update SMT determining how the M/H receiver is operated SMT-MH data that have not been subjected to TRS byte-error correction are kept from updating the SMT until those SMT-MH data are veπfied by later SMT-MH data subjected to TRS byte-error correction Transmitting total number of Groups (TNoG) - one information for the currently received M/H Frame in all its sub-frames speeds up acquisition of Fast Information Channel updates by the M/H receiver