| US 7,532,673 B2 | ||
| Transport of modulation symbols in a communications system | ||
| James E. Cannella, Jr., Roswell, Ga. (US); Larry S. McKinney, Hoschton, Ga. (US); and William D. Woodward, Jr., Lilburn, Ga. (US) | ||
| Assigned to Scientific-Atlanta, Inc., Lawrenceville, Ga. (US) | ||
| Filed on Jan. 30, 2004, as Appl. No. 10/768,355. | ||
| Prior Publication US 2005/0169164 A1, Aug. 04, 2005 | ||
| Int. Cl. H04L 27/36 (2006.01) | ||
| U.S. Cl. 375—260 [375/271; 375/298; 375/302] | 20 Claims |
| 1. A method for transmitting digital information indicative of source signals, the method comprising:
generating one or more modulation symbols, wherein each modulation symbol is an encoded group of bits representing one of
a set of deterministic finite energy waveforms;
generating a plurality of bit streams that comprise the modulation symbols, wherein each bit stream carries information corresponding
to different points of a constellation associated with each modulation symbol;
transmitting the plurality of bit streams through a digital transport medium from a first location to at least a second location;
receiving the plurality of bit streams from the digital transport medium at the second location; and
generating a waveform by digitally filtering the modulation symbols in the plurality of bit streams received at the second
location to generate analog signals for further transmission to a plurality of receivers.
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