US 7,406,294 B1 · Digital audio file reproduction system and method with wireless transfer capability

Abstract

A digital audio file reproduction apparatus, system and method having wireless transfer capability with a remote device. The apparatus includes a memory and a controller coupled to store and recall digital audio files with the memory. A transceiver operates to transmit and receive digital audio files according to a radio protocol. An audio circuit receives audio files from the controller and outputs the audio files for analog audio reproduction. The controller responds to the receipt of an in-range radio signal by the transceiver, from the remote device, to exchange digital audio files with the remote device via the radio protocol. A memory card slot is adapted to accept plural user-replaceable memory cards. The apparatus compresses and decompresses the digital audio files, which may be according to the MP3 format. A microphone circuit provided to enable the recording and storing of voice messages.

Claims31

Dependent claims

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.

3 more elements

A method of transferring digital audio files between a first memory in a first digital audio file reproduction device and a second memory in a second digital audio file reproduction device using wireless transmission means, comprising the steps of:

periodically transmitting a link request radio signal by the first digital audio file reproduction device;
transmitting a responsive in range radio signal by the second digital audio file reproduction device, in response to receiving one of said link request radio signals, thereby establishing a communication link between the first digital audio file reproduction device and the second digital audio file reproduction device, and subsequently;
automatically recalling a first digital audio file from the memory of the first digital audio file reproduction device and transmitting said first digital audio file by wireless transmission means to the second digital audio file reproduction device and storing said first digital audio file in the memory of the second digital audio file reproduction device
recalling a second digital audio file from the memory of the second digital audio file reproduction device and transmitting said second digital audio file to the first digital audio file reproduction device and storing said second digital audio file in the memory of the first digital audio file reproduction device, and
recalling said first digital audio file from the memory of said second digital audio file reproduction device and reproducing said first digital audio file by analog means.

2 more elements

Dependencies are inferred from the claim text.

Digital audio file reproduction system and method with wireless transfer capability

Life of this patent

Digital audio file reproduction system and method with wireless transfer capability

Life of this patent

Abstract

Claims31