Microsoft has received a patent for Searching for content using voice search queries.
A system, method and computer-readable media are disclosed for searching for content from a device.
The system, method, and computer-readable media are adapted to transmit a voice search query from a device and can in return allow the device to receive corresponding non-voice search result data.
Once non-voice search result data is received it can be displayed to the user on a display of the device.
Details: US Patent & Trademark Office website.
Thanks again, Ankur! 
