Patent ID: 8379874
Filing Date: 2013-02-19
Classification: H04R

Abstract:
1. A wireless device for selectively reproducing program data including program video data and program audio data in known time synchronization and originating from a source in a venue having a boundary and at least one sound reproducing transducer therein, said wireless device comprising: a receiver for receiving wireless transmissions and demodulating program data contained therein, wherein the program data includes at least program video data, program audio data, and time synchronization data for the program video data and the program audio data; a storage device for storing a time segment of the received program video data and a time segment of the received program audio data; at least one sound transducer receiving natural sound via the atmosphere from the at least one sound reproducing transducer, the received natural sound being delayed by the speed of sound in the atmosphere; a correlator correlating one or more stored segments of the received program audio data and one or more segments of the received delayed natural sound to determine a segment of the received program audio data that corresponds to a segment of the received delayed natural sound; a processor coupled to said correlator for determining from the segment of the received program audio data that corresponds to a segment of the received delayed natural sound a number of video frames of delay by which the received program video data that corresponds in time to the segment of the received program audio data that corresponds to a segment of the received delayed natural sound is delayed from the received delayed natural sound; and a display coupled to said storage device for reproducing in human perceivable form the program video data delayed by the number of video frames determined by said processor, whereby the received video reproduced by the display of said wireless device is substantially in time alignment with ambient natural sound from the sound reproducing transducer of the venue.