USB AUDIO AND POWER TRANSMISSION

• US 20150264513A1
• Filed: 10/09/2012
• Published: 09/17/2015
• Est. Priority Date: 10/09/2012
• Status: Abandoned Application

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Ryazanov, Sergey
• Application Number:
  US14/434,367
• Publication Number:
  US 20150264513A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 13/387 for adaptation of different data processing systems to different peripheral devices, e.g. protocol converters for incompatible systems, open system
• CPC Class Codes: G06F 13/4221 being an input/output bus, e.g. ISA bus, EISA bus, PCI bus, SCSI bus
• CPC Class Codes: G06F 13/426 using an embedded synchronisation, e.g. Firewire bus, Fibre Channel bus, SSA bus
• CPC Class Codes: G06F 2213/0042 Universal serial bus [USB]
• CPC Class Codes: G06F 3/162 Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

In general, aspects of the present disclosure may be directed to techniques for streaming audio over, and receiving power from a Universal Serial Bus interface. In an example, a device includes at least one processor, an audio module operable by the at least one processor to generate digital audio data stream based on audio data stored at the device, convert the digital audio stream into an audio format compatible with output by a Universal Serial Bus interface, and output the digital audio data stream to a Universal Serial Bus host using a Universal Serial Bus microphone interface, wherein the device and the Universal Serial Bus host are coupled by a Universal Serial Bus connection.

Claims

1. A method, comprising:

generating, by a computing device, a digital audio data stream based on audio data stored at the computing device;

converting, by the computing device, the digital audio stream into an audio format compatible with output by a Universal Serial Bus interface; and

outputting, by the computing device, the digital audio data stream to a Universal Serial Bus host using a Universal Serial Bus microphone interface, wherein the computing device and the Universal Serial Bus host are coupled by a Universal Serial Bus connection.

2. The method of claim 1, further comprising:

receiving, by the computing device, power using the Universal Serial Bus connection.

3. The method of claim 1, further comprising:

receiving, by the computing device, a selection of a logical audio interface device mode of the computing device.

4. The method of claim 1, further comprising:

wherein receiving the selection of the logical audio device interface comprises;

executing, by the computing device, an application of the computing device; and

responsive to executing an application of the computing device, receiving, by the mobile computing device, the selection of the logical audio device interface.

5. The method of claim 1, further comprising:

receiving, by the computing device, a selection of an audio format,

wherein outputting the digital audio data stream to the Universal Serial Bus host comprises;

responsive to receiving the selection of the audio format, outputting, by the computing device, the digital audio data stream in an audio format based on the selected audio format to the Universal Serial Bus host using the microphone interface.

6. The method of claim 1, further comprising:

reading, by the computing device, a Near Field Communication tag; and

responsive to reading the Near Field Communication tag, selecting, by the computing device, a logical audio interface device mode of the computing device.

7. The method of claim 6, further comprising:

receiving, by the computing device, information related to a Universal Serial Bus audio format from the Near Field Communication tag; and

responsive to receiving the information related to the Universal Serial Bus audio format, configuring, by the computing device, the digital audio data stream based on the information related to the Universal Serial Bus audio format.

8. The method of claim 1, wherein converting the digital audio stream into an audio format compatible with output by a Universal Serial Bus interface comprises converting, with the computing device, the digital audio stream in at least one of a Type I Universal Serial Bus Audio Data Format, a Type II Universal Serial Bus Audio Data Format, and a Type III Universal Serial Bus Audio Data Format.

9. The method of claim 1, wherein the Universal Serial Bus interface includes at least one isochronous endpoint.

10. The method of claim 1, further comprising:

configuring, with the computing device, the computing device to include a plurality of configurations, wherein each configuration of the plurality of configurations supports a different set of audio formats.

11. The method of claim 10, further comprising:

receiving, by the computing device, a selection of a configuration from the plurality of configurations from the Universal Serial Bus host; and

responsive to receiving the selection of the configuration, configuring, by the computing device, the computing device in accordance with the configuration.

12. The method of claim 1, further comprising:

detecting, by the computing device, a user input indicating an audio volume adjustment; and

responsive to receiving the user input, adjusting, by the computing device, the audio data stream based on the user input.

13. The method of claim 1, wherein the computing device is a mobile phone.

14. The method of claim 1, wherein the Universal Serial Bus host is a head unit of a vehicle.

15. A computer-readable storage medium encoded with instructions that, when executed, cause at least one processor of a computing device to:

generate a digital audio data stream based on audio data stored at a computing device;

convert the digital audio stream into an audio format compatible with output by a Universal Serial Bus interface; and

output the digital audio data stream to a Universal Serial Bus host using a Universal Serial Bus microphone interface, wherein the computing device and the Universal Serial Bus host are coupled by a Universal Serial Bus connection.

16. The computer-readable storage medium of claim 15, further comprising instructions that cause the at least one processor to:

receive a selection of a logical audio interface device mode of the computing device.

17. The computer-readable storage medium of claim 15, further comprising instructions that cause the at least one processor to receive power using the Universal Serial Bus connection.

18. A device comprising:

at least one processor;

a Universal Serial Bus interface; and

an audio module operable by the at least one processor to generate a digital audio data stream based on audio data stored at the device, convert the digital audio stream into an audio format compatible with output by the Universal Serial Bus interface, and output the digital audio data stream to a Universal Serial Bus host using a Universal Serial Bus microphone interface, wherein the device and the Universal Serial Bus host are coupled by a Universal Serial Bus connection.

19. The device of claim 18, wherein the device is further configured to receive a selection of a logical audio interface device mode of the device.

20. The device of claim 18, wherein the device further comprises:

a power module operable by the at least one processor to receive power using the Universal Serial Bus microphone connection.