Other

Brechtel Manufacturing, Inc.

Invensense, Inc.

David A Horsley

Richard J Przybyla

Mitchell Herman Kline

Fredrick J Brechtel

Sebastian Riccardi

Gerardo Jaramillo

Richard J Przbyla

A tracking method is disclosed. The method may include displaying visual content on a screen. A base station may be stationary with respect to the screen while the visual content is being displayed. In contrast, one or more objects may move with respect to the screen while the visual content is being displayed. The one or more objects may be tracked so that the movement thereof may be used to alter the visual content. Such tracking may involve the base station and the one or more objects sending and/or receiving one or more ultrasonic pulses. The tracked object also determines information using an inertial sensor assembly that receives a synchronization signal coordinated with the one or more ultrasonic pulses. Time-difference-of-arrival and/or time-of-flight of the one or more ultrasonic pulses may then be used to estimate a relative location and/or a relative orientation of the one or more objects with respect to the base station in three dimensional space, so that the estimate is fused with information determined by the inertial sensor assembly using the synchronization signal.

Three dimensional object-localization and tracking using ultrasonic pulses with synchronized inertial position determination

A system and method comprising a charger for ionizing aerosols; a spectrometer coupled to the charger and operable to select for a predetermined particle size; a porous charge collector coupled to the spectrometer, and a MEMS electrometer. In some embodiments the charge collector may be a metal frit electrically coupled to the electrometer. The electrometer may include a comb drive actuator coupled to a moving shuttle supported on flexures.

Charged particle detector

Growing community of inventors

Berkeley, CA, United States of America

David A Horsley