US Patent 9342267 Displaying regions of user interest in sharing sessions

A meeting server facilitates an online conference session among a presenter device and a plurality of attendee devices, including a display of shared image data from the presenter device. The meeting server receives indications from the attendee devices, with each indication associated with a corresponding portion of the shared image data displayed on each of the attendee devices. The indications are combined into a message representing user interest in areas of the shared image data, and the message representing interest is transmitted to the presenter device.