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:
May. 20, 2008
Filed:
Sep. 24, 2004
James E. Petranovich, San Diego, CA (US);
Yiorgos M. Peponides, Encinitas, CA (US);
Steven H. Gardner, San Diego, CA (US);
Cenk Kose, San Diego, CA (US);
James E. Petranovich, San Diego, CA (US);
Yiorgos M. Peponides, Encinitas, CA (US);
Steven H. Gardner, San Diego, CA (US);
Cenk Kose, San Diego, CA (US);
Conexant Systems, Inc., Newport Beach, CA (US);
Abstract
The modulation method and system of the presented herein involves mapping data onto a constellations comprising a set of concentric circles in a two-dimensional plane, one dimension for the amplitude and one for the phase. The phase dimension is coded differentially, while the amplitude dimension is coded coherently. The circles in each constellation may contain equal number of points, and in other embodiments more points may be used on the outer circles. The data may be coded with dual Trellis codes, one code for the phase data and another code for the amplitude data.