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:
Jun. 03, 2014
Filed:
Sep. 28, 2007
Mike Metaxas, Oakland Gardens, NY (US);
Vijay Jayapalan, Irving, TX (US);
Sundar Padmanabhan, Irving, TX (US);
Manvinder Chopra, Carrollton, TX (US);
Jim Bartlett, Santa Barbara, CA (US);
Mike Metaxas, Oakland Gardens, NY (US);
Vijay Jayapalan, Irving, TX (US);
Sundar Padmanabhan, Irving, TX (US);
Manvinder Chopra, Carrollton, TX (US);
Jim Bartlett, Santa Barbara, CA (US);
Verizon Patent and Licensing Inc., Basking Ridge, NJ (US);
Abstract
Delay is measured associated with the transfer of voice signals involving a telephone connected to a PSTN carrier (e.g., non VoIP based) where the call is terminated by an operator agent using a workstation connected to a VoIP based network. A test tone is provided to the telephone causing a tone to be generated at a headset of the workstation. An oscilloscope measures the delay using an input of a first signal associated with the generation of the test tone at the telephone, and a second signal associated with the generation of the resulting tone at the headset. The tone at the headset can be looped back into the headset microphone, causing a return signal to be generated and measured. Once the overall delay is known, and the delay of certain elements are estimated, the delay associated with other network elements, including the workstation, can be determined.