Patent ID: 9253428
Filing Date: 2016-02-02
CPC Classification: H04L,H04N

Claim Text:
1. A method for generating coded orthogonal frequency division multiplex (COFDM) digital television signals suitable for broadcasting, said method comprising steps of: generating a serial stream of effective orthogonal frequency division multiplex (OFDM) symbol blocks conveying one or more digital television signals; generating a baseband metadata signal descriptive of the processes for generating said serial stream of effective OFDM symbol blocks; generating a serial stream of complete OFDM symbol blocks from said serial stream of effective OFDM symbol blocks by substeps including introducing segments of said baseband metadata signal into said serial stream of complete OFDM symbol blocks and introducing descriptions of pilot carrier into said serial stream of complete OFDM symbol blocks for the purpose of facilitating frequency-domain channel equalization in receivers of said COFDM digital television signals; modulating a plurality of orthogonal frequency-division-multiplexed carriers in accordance with said serial stream of complete OFDM symbol blocks, thus generating a COFDM signal; and inserting a guard interval and cyclic prefix into said COFDM signal.