Patent ID: 7369824

Claim:
A method for a receiver to generate analog audio signal from radio frequency signal, the method comprising: during a first time interval: demodulating the radio frequency signal to obtain a first stream of digital data, the first stream of digital data comprising at least a first set of compressed digital audio data, a first index data associated with the first set of compressed digital audio data, a second set of compressed digital audio data and a second index data associated with the second set of compressed digital audio data; and storing the first and the second set of compressed digital audio data and the first and the second index data in at least a portion of a random access memory; and during a subsequent time interval, demodulating the radio frequency signal to obtain a second stream of digital data, the second stream of digital data comprising at least a third set of compressed digital audio data; generating a first analog audio signal based on the third set of compressed digital audio data; after receiving a command by a user, providing a first user-perceivable output that is associated with the first digital index data and a second user-perceivable output that is associated with the second digital index data, the first and the second user-perceivable outputs assisting the user to select one of the first and the second sets of compressed digital audio data for listening; if the user selects the first user-perceivable output, retrieving the first set of compressed digital audio data from the portion of the random access memory and generating a second analog audio signal based on the retrieved first set of compressed digital audio data; and if the user selects the second user-perceivable output, retrieving the second set of compressed digital audio data from the portion of the random access memory and generating a third analog audio signal based on the retrieved second set of compressed digital audio data.