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:
May. 26, 2015
Filed:
Sep. 29, 2010
Thiyagesan Ramalingam, Milpitas, CA (US);
Bhargav G. Pandya, Fremont, CA (US);
Gary A. Skrabutenas, Palo Alto, CA (US);
Thiyagesan Ramalingam, Milpitas, CA (US);
Bhargav G. Pandya, Fremont, CA (US);
Gary A. Skrabutenas, Palo Alto, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one implementation, a conference hosted on a conference bridge that includes an echo control device that classifies the echo return loss of a plurality of endpoints. The endpoints may include endpoints on internet protocol (IP) networks and public switched telephone networks (PSTN). The echo control of the endpoints is controlled independently. An echo classification module calculates the echo return loss value of the associated echo tail of the endpoint and chooses an appropriate echo control mode. If the echo return loss is above a high threshold, a pass through mode is activated. If the echo return loss is below a low threshold, a full echo cancellation mode is activated. If the echo return loss is between the low threshold and the high threshold, an echo suppression mode is activated.