Technical Details – The Google Glass Specifications

Google Glass Specifications

What are the Google Glass Specifications?

The Google Glass specifications include technologies that are found on other devices and a number of significant new ones.  Glass Explorers will obviously be getting more information soon as the Google Glass project rolls out further -

Here’s a rundown of the Google Glass Specifications

Voice recognition - Google Glass has the ability to recognize voice commands and is remarkably accurate.

Display - High res equivalent to a 25″ HD screen viewed from eight feet. This is a 640 x 360 prism.

Forward facing camera - (720p Video and a 5MP Camera resolution but might be different by the time production starts) Video and phot-taking is activated by tapping the side of the touch sensitve pad or by voice command. Once activated, the vide is visible in the diaply and cannot be turned off. This means that people viewing the user will be able to see that the screen is active, so if they are concerned about being videoed surreptitiously, they can see whetehr the camera is activated by looking at the display which is transparent. Obviously from a distance or from certain angles this is not possible.

Google Glass CPU - This is a Texas Instruments OMAP4430

Bone Conduction Transducer Headphones - you can listen to music or hear responses to menu actions and requests through bone conduction headphones. These touch the skull just above the ear and transmit sound to the user via vibrations passed along the bone. As you may know, your lower jaw and cheekbones  also do the same thing in nature. This leaves the user able to hear environmental sounds and does not interfere with normal human interaction like wearing regular headphones might.

Google Glass Motion Sensors and other Sensory Devices

Google Glass motion sensors allow for head movements to be used as control mechanisms. In addition it is possible to detect objects in proximity and eye movements. The combination of these sensors and the fact that Glass is a head-mounted computer opens the door for a whole new world of Glassware (Glass Applications).

Touchpad - The side of Glass has a Synaptics T1320 touchpad controller. This can be used in two ways as a sliding mechanism by drawing the finger backwards/forwards or up/down. In the early editions these are used to control cards on the timeline as a scrolling motion. Tapping is similar to a mouse tap and either wakes up the device, or selects something viewed in the display – an item on the menu for example. This is an obvious indicator that a user is taking a picture too.

Proximity/ambient light  sensor - This is a LiteON LTR-506ALS - here is the the Android driver for the LTR-506ALS This device is an Infra-Red pulse and can be controlled very precisely in software.

Geo-location - This is handled by the same system that all Androids use to sat nav and is unremarkable. Accuracy is approximately to the nearest meter.

Wink /eye movement detection. Glass can detect a number of eye movement components. Winks can be detected with the current specification alowing for up to 20 winks. This may seem like a recipe for causing an eye problem but this is not intended for control purposes. Detecting blinks, blink rates and eye movement can have many medical uses which no doubt will come to fruition in time.

Gyroscope/Accelerometer - Glass has a 3 axis gyroscope and accelerometer (inertia sensor) by Invensense – Model MPU6050. This is a very sensitive device reporting movements at a rate of 30KHz. In real terms it transmits a data  

Compass (Magnetometer) - The Glass magnetometer is an Asahi Kasei AKM8975, 3axis geomagnetic sensor(compass). as a 3D sensor, a magnetometer helps calculate orientation as well as compass direction.

Wireless and Bluetooth - WiFi – 802.11b/g plus Bluetooth 3.  Although a blessing to have such connectivity, Bluetooth is a realtively power hungry mechanism – combined with the video camera, battery times can be hit hard by heavy use. Similarly for wireless access.

Battery – 2.1 Wh (~570mAh) Li-Po battery - Google Glass users report that only an hour or so is possible when video recording is taking place before a re-charge is needed. About 4 hours general use or about 12 hours intermittent use are commonly reported. The amount of time Glass batteries are expected to last for depends on the type of usage. Video is plainly the biggest power muncher. Charging is via a USB to MicroUSB cable. There is also a mains charger available.

User Memory - 12 GB of usable memory, sync’ed with Google cloud storage. 16 GB Flash total in the form of a single 16Gb SanDisk memory chip. This seems to be a decent amount of system memeory and with cloud connectivity, should allow users the ability to store virtually unlimited amounts of video and imagery etc.

System Memory - 1GB RAM in total with 682MB available for Glass applications (Glassware) – this is an Elpida mobile DRAM chip

Fit - Adjustable nosepads and a durable titanium frame which is designed to fit any face. There are extra nosepads in two sizes. Glass is custom fitted for you be technicians at the Google Glass Project Collection Dept. when you collect Explorer editions.

Accessories -Included Micro USB cable and charger (While there are thousands of Micro USB chargers out there, Glass is designed and tested with the included charger in mind – preserve long and prosperous Glass by using the proper charger).

Compatibility - Any Bluetooth-capable phone – at the moment requiring an Android device to pair up to.

Required software - The MyGlass companion app requires Android 4.0.3 (Ice Cream Sandwich) or higher. MyGlass enables GPS and SMS messaging.

Glass Kernel - The Glass kernel is an Android variant. Current Version is Android 4.0.4

2 Responses to “Technical Details – The Google Glass Specifications”

  1. […] simple near-IR filter lens-overlay would do it? (There’s also an IR light built into Glass as a proximity sensor, which would add some luminosity in the IR […]

  2. […] simple near-IR filter lens-overlay would do it? (There’s also an IR light built into Glass as a proximity sensor, which would add some luminosity in the IR […]

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