Patent ID: 7653925

Claim:
A method performed by a presentation recorder device of communicating information received during a multimedia presentation, comprising: receiving first information at the presentation recorder device from a first system coupled to the presentation recorder device, the first information including at least one of video information or audio information generated using the first system from a presentation file; receiving second information at the presentation recorder device from a set of capture devices, the second information including at least one of video information or audio information from a capture device in the set of capture devices, the second information captured by the capture device during the multimedia presentation; analyzing video information received from the first system or video information received from the capture device with the presentation recorder device to determine a textual difference between a first video frame and a second video frame using one or more optical character recognition techniques; selecting a set of one or more keyframes with the presentation recorder device from the analyzed video information received from the first system or the analyzed video information received from the capture device in response to a user-configurable threshold and the textual difference between a first video frame and a second video frame; analyzing the first information and the second information with the presentation recorder device to extract textual information with the presentation recorder device from video information or the audio information in the first information or video information or the audio information in the second information using one or more text recognition techniques; generating a presentation representation at the presentation recorder device of the first information and the second information, the presentation representation including a representation of each keyframe in the set of keyframes and the textual information extracted by the presentation recorder device from the first information or the second information; communicating at least a portion of the presentation representation from the presentation recorder device to one or more devices, the communicated portion of the presentation representation including one or more keyframes from the set of keyframes and a portion of the textual information.