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:
Oct. 13, 2009
Filed:
Sep. 27, 2005
Bing Chen, Westfield, NJ (US);
David Beaumont Ramsden, Wall, NJ (US);
Bing Chen, Westfield, NJ (US);
David Beaumont Ramsden, Wall, NJ (US);
AT & T Intellectual Property II, L.P., Reno, NV (US);
Abstract
A method is described for detecting total end-to-end loss of data packets in a packet network that does not require direct access to the packet network. A test signal is generated at a source end point indirectly coupled to the packet network. The test signal is transmitted over the packet network to a destination end point also indirectly coupled to the packet network. At the destination end point a modified test signal is received and examined to detect irregularities and then processed to determine whether the irregularities in the recorded signal represent packet loss.