Patent ID: 8126157

Claim:
An apparatus for reproducing data, comprising: a memory for storing a pre-recorded audio data; a decoder for decoding the audio data for a subsequent output to at least one headphone set in communication with said apparatus; and an ID reader for detecting at least one foreign headphone set to determine whether said foreign headphone set has a right to access a requested cryptographic class of service a processor for controlling the functions of all of the elements of the apparatus including signal processing conversion, a codec for encoding incoming signals according to an encoding algorithm and for decoding and output from the memory according to a decoding algorithm to produce a digital pre-recorded data, a digital to analog converter for converting said digital pre-recorded data output from the codec into an analog pre-recorded data and outputting the analog pre-recorded data to an audio output device, and said audio output device for providing said audio data to at said at least one foreign headphone set via one of optical or radio frequency (RF) transmission.