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.

Date of Patent:
Nov. 08, 2011

Filed:

Dec. 12, 2006
Applicants:

Mikhail Kronrod, San Jose, CA (US);

Vladimir Movshovich, Mountain View, CA (US);

Elizaveta K. Tavastcherna, San Jose, CA (US);

Inventors:

Mikhail Kronrod, San Jose, CA (US);

Vladimir Movshovich, Mountain View, CA (US);

Elizaveta K. Tavastcherna, San Jose, CA (US);

Assignee:

Spirent Communications, Inc., Sunnyvale, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

A pilot signal is transmitted from a transmitting device through a communication network under test to a receiving device. The pilot signal is transmitted at a known transmit time and in a voice channel. Incoming signals within the voice channel at the receiving device are monitored to detect receipt of the pilot signal. A receipt time of the pilot signal at the receiving device is identified. The one-way delay (OWD) is determined as a difference between the receipt time of the pilot signal at the receiving device and the transmit time of the pilot signal from the transmitting device.


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