Microsoft Technology Licensing, LLC

Jeremiah M Pope

Thomas Charles Oliver

James Charles Marshall

Mark William Casebolt

Glen C Larsen

Mark R Lee

Rajeev Badyal

Randall T Crane

Chun Beng Goh

Brad Fosdick

Mechanisms for controlling lighting activation by taking into account proximity and motion data are disclosed. Controllers can have cosmetic and/or functional lighting that can be controlled by proximity detectors and/or motion detectors, and such lighting can vary in color, intensity, and/or pattern. Proximity detectors can use capacitance, lighting, and/or sound data to determine the proximity of objects to the controllers, and motion detectors can use accelerometers and/or gyroscopes to determine the motion of such controllers. Additionally, controllers can start radio frequency communications with gaming consoles based on proximity and/or motion data. One benefit of such proximity and/or motion light control is battery conservation.

Controller lighting activation by proximity and motion

A system and method for reducing power consumption of a wireless input device is disclosed. The input device may convert between a high power state and a low power state. In the high power state, a transmitter and light sources are activated, whereas both the transmitter and the light sources are deactivated in the low power state. Following a period of inactivity in which neither a key sensor for activatable keys nor a presence sensor for the user transmit input, the input device may convert from the high power state to the low power state to conserve energy. When the presence sensor detects the presence of the user, however, the input converts to the high power state wherein the transmitter and the light sources are activated.

Input device having a presence sensor

A method, apparatus, and system for tracking movement of a device are described. The method includes steps of implementing a first tracking subsystem for tracking positions of a device against a surface, determining whether to implement a second tracking subsystem for tracking positions of the device against the surface, capturing data corresponding to a location on the surface, and determining a position of the device against the surface based on the captured data. The position of the device can then be transmitted to a host computer and used in an application program. The first and second tracking subsystems may be a relative and an absolute tracking subsystem respectively.

Methods and apparatuses for compound tracking systems

A computer input device controller dynamically adjusts the rate at which an illumination source is activated, and may also adjust the rate at which other optical tracking system components are activated. As the velocity of optical tracking system movement relative to a tracked surface increases, the controller increases the activation rate(s). As the velocity of relative movement decreases, the controller decreases the activation rate(s). Future displacements of a tracking system relative to a tracked surface are also estimated. In particular, relative tracking system/tracked surface velocity is calculated based on a series of images. Relative displacement is then estimated based on the calculated velocity.

Dynamically adjusting operation of one or more sensors of a computer input device

A data input device for use with a tracking surface having light-scattering properties with respect to the device is disclosed. The device comprises a coherent light source for projecting a coherent light beam onto the tracking surface. The tracking surface scatters the coherent light beam striking the tracking surface. The device further comprises a detector associated with the coherent light source for detecting at least a portion of the scattered light. The detected portion of the scattered light comprising a speckle pattern. The device further comprises a controller configured to respond to the detected speckle pattern and operate the device in one of a tracking mode and a non-tracking mode, depending upon a speckle size characteristic of the detected speckle pattern as determined by the controller.

Growing community of inventors

Kirkland, WA, United States of America

Jeremiah M Pope