Abstract: A wearable computing device includes one or more processors, memory and a physiological metric sensor system, including a light source configured to direct light into tissue of a user wearing the wearable computing device, a light detector implemented a distance away from the light source and configured to detect light from the light source that reflects back from the user, and a light-blocking portion implemented between the light source and the light detector. The wearable computing device may further include an audio port directed towards an ear canal of the user and control circuitry configured to activate the light source during a period of time and generate a light detector signal indicating an amount of light detected by the light detector during the period of time.

Abstract: A wearable computing device includes one or more processors, memory and a physiological metric sensor system, including a light source configured to direct light into tissue of a user wearing the wearable computing device, a light detector implemented a distance away from the light source and configured to detect light from the light source that reflects back from the user, and a light-blocking portion implemented between the light source and the light detector. The wearable computing device may further include an audio port directed towards an ear canal of the user and control circuitry configured to activate the light source during a period of time and generate a light detector signal indicating an amount of light detected by the light detector during the period of time.

Abstract: A wearable computing device includes one or more processors, memory and a physiological metric sensor system, including a light source configured to direct light into tissue of a user wearing the wearable computing device, a light detector implemented a distance away from the light source and configured to detect light from the light source that reflects back from the user, and a light-blocking portion implemented between the light source and the light detector. The wearable computing device may further include an audio port directed towards an ear canal of the user and control circuitry configured to activate the light source during a period of time and generate a light detector signal indicating an amount of light detected by the light detector during the period of time.

Abstract: A wearable computing device includes one or more processors, memory and a physiological metric sensor system, including a light source configured to direct light into tissue of a user wearing the wearable computing device, a light detector implemented a distance away from the light source and configured to detect light from the light source that reflects back from the user, and a light-blocking portion implemented between the light source and the light detector. The wearable computing device may further include an audio port directed towards an ear canal of the user and control circuitry configured to activate the light source during a period of time and generate a light detector signal indicating an amount of light detected by the light detector during the period of time.

Abstract: Systems for securing mobile devices such as laptops are provided. Such systems are characterized by two end members, each with a male electrical connector, that engage opposite sides of mobile device, a crossbeam between the two end members that cradles the underside of the mobile device, and a mechanical linkage that is used to release the mobile device. In addition to a slim form factor, systems of the present invention can comprise registration posts to align a top edge of the mobile device to the crossbeam, a receptacle for a power adapter connector, and a locking mechanism to lock an end member to the crossbeam and optionally also lock the power adapter connector to the system.

Abstract: Systems for securing mobile devices such as laptops are provided. Such systems are characterized by two end members, each with a male electrical connector, that engage opposite sides of mobile device, a crossbeam between the two end members that cradles the underside of the mobile device, and a mechanical linkage that is used to release the mobile device. In addition to a slim form factor, systems of the present invention can comprise registration posts to align a top edge of the mobile device to the crossbeam, a receptacle for a power adapter connector, and a locking mechanism to lock an end member to the crossbeam and optionally also lock the power adapter connector to the system.