Patent ID: 7406294

Claim:
A digital audio file reproduction apparatus having wireless transfer capability with a remote digital audio file reproduction device that responds to receipt of a link request radio signal by transmitting an in range radio signal, comprising: a memory; a controller coupled to store and recall digital audio files with said memory; a transceiver, coupled to said controller, operable to transmit and receive digital audio files according to a radio protocol; an audio circuit coupled to receive digital audio files from said controller, and output corresponding analog audio signals for analog audio reproduction, and wherein said controller is coupled to cause said transceiver to periodically transmit a link request signal; said controller is responsive to the receipt of an in-range radio signal by said transceiver, from the remote digital audio file reproduction device, which responds to said link request signal, to automatically establish a communication link with the remote digital audio file reproduction device and execute a bidirectional exchange of digital audio files with the remote digital audio file reproduction device via said radio protocol.