New pending patent applications are published by the USPTO on Thursdays. Last Thursday's Spotlight Applications concern digital watermarking and digital fingerprinting. Assigned to XCINEX, the first application discloses techniques for viewing movies. Assigned to Verizon, the second application discloses audio fingerprinting for advertisement detection.
20150281774, "Techniques for Viewing Movies," assigned to XCINEX Corporation.
Apparatus is disclosed for streaming pay-per-view digital content to a content display unit a viewing audience is watching in a viewing area. An audience detection controller controls the display of content as a function of whether or not payment has been received for the number of viewers present in the viewing audience. The controller includes one or more light responsive cameras combined with a thermal camera to detect a presence of one or more members of the audience in the viewing area, and an operating system to analyze the captured images to detect the number of persons of the audience. The controller further includes a reverse camera to capture a watermark inserted in the streaming content to confirm the controller is in the same room as the display unit, IR lighting, and ambient light sensors to detect ambient light conditions.
20150279381, "Audio fingerprinting for advertisement detection," assigned to Verizon.
A device may receive an audio sample, and may separate the audio sample into multiple sub-band signals in multiple frequency bands. The device may modify an upper boundary and a lower boundary of at least one of the frequency bands to form modified frequency bands. The device may modify the sub-band signals to form banded signals associated with the modified frequency bands. The device may smooth the banded signals to form smoothed signal values. The device may identify peak values included in the smoothed signal values, and may generate an audio fingerprint for the audio sample based on the smoothed signal values and the peak values.