Patent ID: 8272008
Filing Date: 2012-09-18
Classification: H04L,H04N

Abstract:
1. A method of retrieving an audio signal, comprising: receiving a video signal comprising audio content, an alternate audio tag indicating an alternate audio source is available, video time stamps, a video content identifier and a first threshold time, and a listing of radio frequencies of radio stations broadcasting alternate audio sources associated with the content identifier; inspecting the video signal for the alternate audio tag; when the alternate audio tag is detected, then presenting a prompt on a display device that displays the listing of radio frequencies of radio stations; querying a social network for the video content identifier; adding a query result to the listing of radio frequencies of radio stations; receiving a selection of an alternate audio source from the listing of radio frequencies of radio stations; tuning to an amplitude modulated frequency signal at which the alternate audio source is broadcast; separately receiving the amplitude modulated frequency signal comprising audio time stamps and a second threshold time; comparing the audio time stamps to the video time stamps; and when one of the audio time stamps exceeds a corresponding one of the video time stamps by a determined threshold time, then delaying the amplitude modulated frequency signal until the audio time stamp is within the determined threshold time of the corresponding video time stamp, the determined threshold time being the smaller one of the first threshold time and the second threshold time.