Patent ID: 8774954
Filing Date: 2014-07-08
Classification: H04H

Abstract:
1. A method comprising: receiving a radio frequency broadcast signal into a radio frequency receiver, the broadcast signal including audio content; decoding an analog audio signal and a non-audio digital signal from the radio frequency broadcast signal using the radio frequency receiver; digitizing the analog audio signal into a digital audio stream using an analog to digital converter; parsing the non-audio digital signal to obtain audio-identifying information using data processing circuitry; additionally parsing the non-audio digital signal until duplicate audio-identifying information is obtained before collecting the audio-identifying information into a single data component comprising multiple elements of the audio-identifying information decoded from the non-audio digital signal; using the data processing circuitry, encoding a placeholder into the digital audio stream while parsing the non-audio digital signal; and encoding the data component into the digital audio stream at the placeholder within the digital audio stream using the data processing circuitry, wherein the placeholder is located in the digital audio stream at a point corresponding approximately to the start of new audio content in the digital audio stream.