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:
Nov. 01, 2011
Filed:
May. 05, 2008
Wesley Larry Apple, Elon, NC (US);
Sam Burris Clanton, Iii, High Point, NC (US);
Timothy Edwin Pabon, Greensboro, NC (US);
William Ryan, Greensboro, NC (US);
John Vincent Townsend, Iii, Kernersville, NC (US);
Wesley Larry Apple, Elon, NC (US);
Sam Burris Clanton, III, High Point, NC (US);
Timothy Edwin Pabon, Greensboro, NC (US);
William Ryan, Greensboro, NC (US);
John Vincent Townsend, III, Kernersville, NC (US);
Confinement Telephony Technology, LLC, Greensboro, NC (US);
Abstract
The likelihood that a called party to a telephone call has forwarded the call to another party, or has conferenced the call to include another party is estimated by requiring that the called party supply a first signal, illustratively a first DTMF signal, later requiring that the called party provide a second signal, illustratively the same DTMF signal provided by the first signal, and comparing characteristics of said first and second signals as received at a telephone network node.