Google Glass is a type of
wearable technology with an
optical head-mounted display (OHMD).
It was developed by
Google
with the mission of producing a mass-market
ubiquitous computer.Google Glass displays
information in a
smartphone-like hands-free format.Wearers communicate with
the Internet via
natural language voice commands. Google
started selling Google Glass in the USA on April 15, 2014 for a limited period
of time for $1500, before it later became officially available to the general
public on May 15, 2014 for the same price. Before that users were required to
receive invitations before they could try Google Glass.
Voice activation
Other than the touchpad, Google Glass can be controlled using "voice
actions". To activate Glass, wearers tilt their heads 30° upward (which
can be altered for preference) or tap the touchpad, and say "O.K., Glass."
Once Glass is activated, wearers can say an action, such as "Take a
picture", "Record a video", "Hangout with [person/Google+
circle]", "Google 'What year was Wikipedia founded?'",
"Give me directions to the Eiffel Tower", and "Send a message to
John" (many of these commands can be seen in a product video released in
February 2013). For search results that are read back to the user, the voice
response is relayed using
bone conduction through a transducer that sits
beside the ear, thereby rendering the sound almost inaudible to other people.
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