The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2010
Filed:
Apr. 22, 2005
Joseph Smallcomb, Lake Worth, FL (US);
Paul Marko, Pembroke Pines, FL (US);
Joseph Smallcomb, Lake Worth, FL (US);
Paul Marko, Pembroke Pines, FL (US);
XM Satellite Radio, Inc., Washington, DC (US);
Abstract
A communication system () using hierarchical modulation includes at least one satellite (&) transmitting a data stream and a hierarchical modulated data stream, and at least one terrestrial station () transmitting the data stream and the hierarchical modulated data stream. The communication system can further include at least one receiver () for demodulating and combining the data stream from at least one satellite and from at least one terrestrial station and for hierarchically demodulating and combining the hierarchical modulated data stream from at least one satellite and the hierarchical modulated data stream from at least one terrestrial station. The terrestrial station can be a terrestrial repeater repeating the data stream and the hierarchical data stream from at least one satellite. The system can also include an uplink () having a hierarchical modulator for modulating both the data stream and the hierarchical data stream.