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:
Mar. 29, 2011
Filed:
Sep. 06, 2006
Scott Firestone, Mountain View, CA (US);
Randall B. Baird, Austin, TX (US);
Wing Cheong Chau, Los Altos Hills, CA (US);
Shantanu Sarkar, San Jose, CA (US);
Scott Firestone, Mountain View, CA (US);
Randall B. Baird, Austin, TX (US);
Wing Cheong Chau, Los Altos Hills, CA (US);
Shantanu Sarkar, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one embodiment, a first audio waveform is produced at a first side of a network connection and then encoded and sent by a first endpoint device to a second endpoint device at a second side of the network connection. A second audio waveform is then detected after being played out by the first endpoint device, the second audio waveform having been produced at the second side of the network connection in response to the second endpoint device playing out the first audio waveform. A round-trip delay is then calculating based on a time period measured from output of the first audio waveform to detection of the second audio waveform. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.