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. 11, 1998
Filed:
Jul. 07, 1995
Applicant:
Inventors:
Prabhat K Gupta, Germantown, MD (US);
Sanjay Gupta, Germantown, MD (US);
Paul Gaske, Rockville, MD (US);
Bob Kepley, Gaithersburg, MD (US);
Assignee:
Hughes Electronics Corporation, El Segundo, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
370286 ; 370296 ; 379406 ;
Abstract
A signal classifier and a echo suppressor for a facsimile calls in an echo prone network. The signal classifier quickly and reliably differentiates facsimile calls from voice and modem calls. The echo suppressor suppresses echo and has a variable hangover time which avoids attenuating and distorting a return transmission signal.