|United States Patent Application||20060276125|
|Dibiaso; Eric A. ; et al.||December 7, 2006|
Method and system to increase available bandwidth in a time division multiplexing system
The present invention involves a method for transmitting data within a specified band of allocated spectrum in a satellite digital transmission system. First a data stream is encoded according to a first encoding scheme, then a second data stream is generated according to a second encoding scheme. The second encoding scheme is incompatible with the first encoding scheme. The first and second data streams are transmitted at predetermined locations within the specified band, such as time slices within a time division multiplexing transmission system. The second data stream is generated by using a more efficient FEC algorithm, including turbo-convolutional, turbo-product, low density parity check, or repeat-accumulate encoders. The inventive receiver has an antenna for receiving RF signals and a demodulator coupled to the antenna for downconverting received RF signals into a data stream. A splitter then separates the data stream into first and second component data streams. A first detector is coupled to the splitter, and is adapted to detect data in the first format. A second detector is coupled to the splitter, and is adapted to detect data in the second format.
|Inventors:||Dibiaso; Eric A.; (Kokomo, IN) ; Walker; Glenn A.; (Greentown, IN) ; Bolduc; Timothy D.; (Westfield, IN)|
|Correspondence Name and Address:|| |
DELPHI TECHNOLOGIES, INC.
|Filed:||May 19, 2005|
|U.S. Current Class:||455/3.02|
|U.S. Class at Publication:||455/003.02|
|Intern'l Class:||H04H 1/00 20060101 H04H001/00|
xm sirius satellite radio stocks patent patents trademark copyright experimental licenses wcs eas invest investing fcc
Jump to :: Satellite Radio Techworld Home Page ::