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. 08, 2013
Filed:
Feb. 25, 2011
Badri N. Rajasekar, San Francisco, CA (US);
Chuo-ling Chang, Palo Alto, CA (US);
Gaurav Gupta, San Francisco, CA (US);
Bernd Girod, Stanford, CA (US);
Yang Cao, Campbell, CA (US);
Badri N. Rajasekar, San Francisco, CA (US);
Chuo-Ling Chang, Palo Alto, CA (US);
Gaurav Gupta, San Francisco, CA (US);
Bernd Girod, Stanford, CA (US);
Yang Cao, Campbell, CA (US);
Abstract
A system and method for performing echo suppression on a server in browser-based online audio conferences without downloading or installing software on a participant's computing device is disclosed. Streams of audio communication data from the participants in an audio conference are received at the server. An echo suppression application determines the first party that speaks by analyzing the streams to locate speech data, and assigns that party as the 'owner' of the audio channel. The speech data is sent to the other participants in the conference. The application then determines whether newly received audio from the owner of the channel is new speech; if so, then the party remains the owner of the channel, and the new speech data is also sent to the other parties in the conference. The channel is surrendered if no new speech is received from the owner in a defined period, and the next party that speaks becomes the new owner of the channel. The other audio data from the participants is replaced by silence.