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:
Dec. 03, 2013
Filed:
Jul. 27, 2009
Joseph T. Friel, Ardmore, PA (US);
Philip R. Graham, Milpitas, CA (US);
Richard T. Wales, Sunnyale, CA (US);
Tor A. Sundsbarm, San Jose, CA (US);
Paul J. Randall, Pleasant Hill, CA (US);
Joseph T. Friel, Ardmore, PA (US);
Philip R. Graham, Milpitas, CA (US);
Richard T. Wales, Sunnyale, CA (US);
Tor A. Sundsbarm, San Jose, CA (US);
Paul J. Randall, Pleasant Hill, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Methods and systems that compensate for display latency when separate speakers are used during video conferencing. A method includes determining whether speakers, which are not controlled by a display, are to be used in connection with a video conferencing session. The method further includes sending, to the display, data that causes the display to generate a predetermined pattern, capturing imagery of the effects of the predetermined pattern shown on the display, calculating a latency of the display based on a difference in a time the data was sent and the imagery of the effects is received, and storing a value of the latency of the display in a device that enables the video conferencing. When the speakers, which are not controlled by the display are selected, are selected, the audio portion of the video conferencing session is redirected to those speakers, but delayed for an amount of time substantially equivalent to the value of the latency of the display. In this way audio and video synchronization may be improved.