US 7,030,935 B2 · VSB reception system with enhanced signal detection for processing supplemental data

Abstract

A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy VSB receiver for processing the data received from the VSB transmission system in a reverse order of the VSB transmission system by using the sequence, and a demultiplexer for demultiplexing the data from the modified legacy VSB receiver into the MPEG data and the supplemental data. The VSB reception system also includes a supplemental data processor for processing the supplemental data segment from the demultiplexer in a reverse order of the transmission system, to obtain the supplemental data, thereby carrying out the slicer prediction, decoding, and symbol decision more accurately by using the predefined sequence, to improve a performance.

Claims32

Dependent claims

An enhanced VSB receiver for receiving and decoding a terrestrial broadcasting signal transmitted from a VSB transmitter, the enhanced VSB receiver comprising:

a VSB demodulator for receiving an input signal including main data and enhanced data from the VSB transmitter and converting the input signal into a base band signal;
a data attribute generator for generating data attribute information indicating whether each symbol included in the input signal corresponds to the main or enhanced data;
a trellis decoder for providing at least one of a slicer prediction signal and a prediction reliability signal by using the data attribute information;
and
a phase tracker for correcting a phase of the base band signal by using the data attribute information and the slicer prediction signal.

2 more elements

Dependencies are inferred from the claim text.

VSB reception system with enhanced signal detection for processing supplemental data

Life of this patent

VSB reception system with enhanced signal detection for processing supplemental data

Life of this patent

Abstract

Claims32