- "An HMD can generally be any display device that is capable of being worn on the head and places a display in front of one or both eyes of the wearer.
- "Further, example embodiments can be implemented by or in association with an HMD with a single display or with two displays, which can be referred to as a "monocular" HMD or a "binocular" HMD, respectively."
The US Patent application is for wearable computers but also strongly alludes to "other" types of wearable device. According to the application wearable devices can include head-mountable devices (HMD), mobile phones as well as "other possibilities."
- "While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims."
- "The particular arrangements shown in the figures should not be viewed as limiting. It should be understood that other embodiments can include more or less of each element shown in a given figure. Further, some of the illustrated elements can be combined or omitted. Yet further, an example embodiment can include elements that are not illustrated in the figures."
The devices described have multiple sensors like gyroscopes, accelerometers, magnetometers, light sensors, infrared sensors, microphones in addition to other types of sensors not specified in the application. These sensors can collect eye movement through inward-facing image capture and interpret it as user input. When it comes to sound, the devices rely on bone conduction speakers (aka bonephones). The user interface described includes "people chooser" software to help users contact specific individuals.