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, 2005
Filed:
Nov. 21, 2000
James M. Amster, Aberdeen, NJ (US);
Robert G. Cole, Churchville, MD (US);
Joshua Hal Rosenbluth, Middletown, NJ (US);
James M. Amster, Aberdeen, NJ (US);
Robert G. Cole, Churchville, MD (US);
Joshua Hal Rosenbluth, Middletown, NJ (US);
AT&T Corp., Bedminster, NJ (US);
Abstract
The quality of conversational voice for Voice-over-Packet transmissions on a Path () in a packet network () is achieved by injecting probe packets for transmission along the path and then measuring packet loss and the delay. From the delay and loss measurements, analytic values for the voice quality impairment caused by delay and by network loss, respectively, are established. An overall measure of the conversational voice quality is then derived in accordance with the algebraic sum of the analytic values for the voice quality impairment caused by delay and by network loss, respectively.