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:
Aug. 18, 1998
Filed:
Oct. 31, 1995
Applicant:
Inventor:
James A Crawford, San Diego, CA (US);
Assignee:
Andre Alain Tabourian, San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375298 ; 375295 ; 332103 ; 455 23 ; 455 42 ;
Abstract
A waveform generating system generates one or more quadrature amplitude modulated (QAM) spectrum pairs which are combined with a frequency modulated (FM) spectrum in the center. The QAM spectrums are offset in frequency to result in a gap in the center to allow combining of the FM spectrum without interference.