Abstract: Systems and methods for location, motion, and contact detection and tracking in a portable networked device are disclosed. A portable device may include a motion detection unit including an accelerometer for detecting accelerations in one or more axes. Signals associated with the detected motion are processed to generate estimates of device acceleration, velocity, and relative and absolute locations. Additional processing may be performed to detect user gestures or other user input relevant to portable device control. Particular motion or vibrational characteristics may be also be detected and used by other processes in the portable device.

Abstract: A device with a touchscreen with a light modulator is disclosed herein. The device transitions from a netbook mode to a touchscreen mode. The device comprises a main unit and a touchscreen unit with a transparent display. The touchscreen unit is preferably separated from the main unit when in a netbook mode, and the touchscreen unit communicates wirelessly with the main unit. The touchscreen unit preferably has an outer screen display surface and an inner screen display surface on each side of a light modulating unit. The main unit preferably has a main unit display.

Abstract: Systems and methods for location, motion, and contact detection and tracking in a portable networked device are disclosed. A portable device may include a motion detection unit including an accelerometer for detecting accelerations in one or more axes. Signals associated with the detected motion are processed to generate estimates of device acceleration, velocity, and relative and absolute locations. Additional processing may be performed to detect user gestures or other user input relevant to portable device control. Particular motion or vibrational characteristics may be also be detected and used by other processes in the portable device.

Abstract: Systems and methods for alarm tone selection and distribution are disclosed. A first device may be configured to allow user selection of a content item for rendering in conjunction with a predefined alarm tone event such as an alarm, meeting time, or other event. The content item may then be associated with an application configured to render content upon occurrence of the event, and the user may be enabled to purchase non-owned content. The user may be further enabled to send content or a reference to content to a second device associated with a second user, where the second user may then be enabled to purchase and use the content for alarm tone functionality on the second device.

Abstract: Systems and methods for facilitating registration of a device, such as a portable device, are described. A user may be provided with a reference pattern, which may then be entered onto a corresponding grid on the device. The user entered grid pattern is then stored as data, encoded, and transmitted to a registration server where it is compared to the reference pattern. If the user entered grid pattern sufficiently matches the reference pattern, the device may then be registered with the registration server and any associated server systems, where it may then be used to provide user personalized content or other functionality.