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. 09, 2006
Filed:
May. 08, 2002
Michael David Zoltowski, West Lafayette, IN (US);
Gregory John Tomezak, Waterford, MI (US);
James Vincent Krogmeier, West Lafayette, IN (US);
Chandra Mohan, Carmel, IN (US);
Zhiming Zhang, Indianapolis, IN (US);
Michael David Zoltowski, West Lafayette, IN (US);
Gregory John Tomezak, Waterford, MI (US);
James Vincent Krogmeier, West Lafayette, IN (US);
Chandra Mohan, Carmel, IN (US);
Zhiming Zhang, Indianapolis, IN (US);
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
Variable Aperture Coded (VAC) signals for VAC modulation are advantageously generated by a digital signal processor () that yields a VAC signal having a single narrow peak in the positive frequency region. A Discrete-Time Hilbert transformer () isolates only the positive spectral peaks, thus yielding a VAC signal that affords greater control over zero crossings.