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. 04, 2006
Filed:
Nov. 22, 2000
Timothy Forrest Settle, Cumming, GA (US);
Thomas Peter Krauss, Algonquin, IL (US);
Kumar Ramaswamy, Plainsboro, NJ (US);
Timothy Forrest Settle, Cumming, GA (US);
Thomas Peter Krauss, Algonquin, IL (US);
Kumar Ramaswamy, Plainsboro, NJ (US);
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
The power of the respective codes used by the first and second error detection/correction circuitry are such that the coded bit error rate of the first data stream is more closely matched to the coded bit error rate of the second data stream. A hierarchical QAM system allows the transmission of different sources by embedding the relative constellation points. The hierarchical QAM transmitter encodes the first data stream using a code having a first detection/correction power and encodes the second data stream using a code having a second detection/correction power.