US 11,057,261 B2
Systems and methods for transmitting data via an electrical cable
Ruoyu Sun, Westminster, CO (US); Jingjie Zhu, Erie, CO (US); and Mark J. Poletti, Louisville, CO (US)
Assigned to Cable Television Laboratories, Inc., Louisville, CO (US)
Filed by CABLE TELEVISION LABORATORIES, INC., Louisville, CO (US)
Filed on Dec. 26, 2019, as Appl. No. 16/727,558.
Claims priority of provisional application 62/785,131, filed on Dec. 26, 2018.
Prior Publication US 2020/0213178 A1, Jul. 2, 2020
Int. Cl. H04L 27/26 (2006.01)
CPC H04L 27/2698 (2013.01) [H04L 27/265 (2013.01); H04L 27/2628 (2013.01)] 16 Claims
OG exemplary drawing
 
14. A transmitter, comprising:
a mapping subsystem configured to map data bits of each parallel first input data stream of a plurality of parallel first input data streams into symbols, to generate a plurality of parallel second input data streams;
a modulation subsystem communicatively coupled to the mapping subsystem and configured to modulate symbols of each parallel second input data stream from digital form to analog form, to generate a plurality of parallel third input data streams;
a filtering subsystem communicatively coupled to the modulation subsystem and configured to individually filter symbols of each parallel third input data stream, to generate a plurality of parallel fourth input data streams;
an inverse Fourier transformation subsystem communicatively coupled to the filtering subsystem and configured to transform symbols of each parallel fourth input data stream from a frequency-domain to a time-domain, to generate a plurality of parallel time-domain samples; and
a parallel-to-series (P/S) conversion subsystem communicatively coupled to the inverse Fourier transformation subsystem and configured to convert the plurality of parallel time-domain samples into a serial multi-carrier signal.