Patent ID: 6629197
Filing Date: 2003-09-30
Classification: G11B

Abstract:
A method for operating a data processing system in a digital audio system, wherein the data processing system stores configurable information that is used during the operation of the data processing system, the method comprising the steps of:storing a plurality of digital audio files in a database within the data processing system, wherein the plurality of digital audio files represents one or more virtual tracks of one or more virtual CDs (Compact Disks); receiving a signal at the data processing system from a requesting unit; interpreting the received signal as a control signal for a configured type of CD-changer unit, wherein the data processing system stores configurable information for the emulation of operations in multiple configured types of CD-changer units; determining a CD-changer unit operation that corresponds to the control signal, wherein the determined CD-changer unit operation would be performed by an instance of the configured type of CD-changer unit in response to an instance of the configured type of CD-changer unit receiving the control signal; and emulating the determined CD-changer unit operation within the data processing system, the emulating step further comprising: determining a virtual CD identifier and a virtual track identifier targeted by the determined CD-changer unit operation; mapping the determined virtual CD identifier and the determined virtual track identifier to a digital audio file stored within the database as a virtual track of a virtual CD; and returning digital audio data from the mapped digital audio file to the requesting unit.