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:
Nov. 09, 2010
Filed:
Mar. 01, 2005
Eric A. Dibiaso, Kokomo, IN (US);
Glenn A. Walker, Greentown, IN (US);
Michael L. Hiatt, Jr., Westfield, IN (US);
Eric A. Dibiaso, Kokomo, IN (US);
Glenn A. Walker, Greentown, IN (US);
Michael L. Hiatt, Jr., Westfield, IN (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
The present invention provides a method to minimize degradation in a D-MPSK hierarchical modulation system by adding additional data throughput (i.e., secondary information) as an offset to the primary signal transmitted by a SDARS terrestrial repeater. The present invention provides techniques for adding the additional throughput as Level 2 data by transmitting offset phase and/or amplitude information across adjacent OFDM symbols and/or adjacent frequency subcarriers.