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:
Jul. 09, 2013
Filed:
Feb. 29, 2012
Mustafa Eroz, Germantown, MD (US);
Feng-wen Sun, Germantown, MD (US);
Lin-nan Lee, Potomac, MD (US);
Dan Fraley, Potomac, MD (US);
Mustafa Eroz, Germantown, MD (US);
Feng-Wen Sun, Germantown, MD (US);
Lin-Nan Lee, Potomac, MD (US);
Dan Fraley, Potomac, MD (US);
DTVG Licensing, Inc., El Segundo, CA (US);
Abstract
An approach for reliably communicating over a satellite in support of a communication service including, for example, as direct broadcast satellite and data service, is disclosed. An input message is encoded, yielding a structured Low Density Parity Check (LDPC) coded message. The coded message is modulated according to a high order modulation scheme that has a signal constellation representing more than two symbols per signaling point—e.g., 8-PSK (Phase Shift Keying) and 16-QAM (Quadrature Amplitude Modulation). The system includes a transmitter configured to propagate the modulated signal over the satellite. The above approach is particularly applicable to bandwidth constrained communication systems requiring high data rates.