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USB AUDIO CONTROLLER

  • US 20100161857A1
  • Filed: 08/14/2009
  • Published: 06/24/2010
  • Est. Priority Date: 12/22/2008
  • Status: Active Grant
First Claim
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1. A universal serial bus (USB) audio controller, comprising:

  • an USB interface unit, used to connect to an USB bus for communicating with an USB host by a communication information;

    an audio interface unit, used to connect to at least one audio device for communicating with an audio signal;

    a storage interface unit, used to communicate with an external storage unit by a storage information; and

    a processing unit, having at least one processor, for processing the communicating information, the storage information, or the audio signal, wherein when the USB interface unit is connected to the USB host, the processing unit processes with respect to an USB device class definition for the audio devices or operates together with a software in the USB host to work as an USB audio device, and processes with respect to USB mass storage class specifications or operates together with a software in the USB host to work as an USB storage device, wherein when the USB interface unit is disconnected from the USB host, the processing unit processes an audio playback function with an audio source from the storage unit or an audio record function with an audio source from audio interface unit.

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