Ceva Technologies, Inc.

Mark Turner

Bryan A Cook

Yun Li

Douglas Charles Carlson

Peter Christopher Wood

Steven Francz

Friedrich Geck

Seth Sternberg

Stephen Scheirey

Chad Lucien

A method for calibrating zero rate offset (ZRO) of a first inertial sensor located on a device, the method includes determining a stability level of the device based on information associated with at least one non-inertial sensor located on the device; and performing a calibration of the ZRO of the first inertial sensor when the stability level is above a threshold.

Methods and apparatus for calibrating the zero rate output of a sensor

Method, apparatus, and systems for roll angle estimation for an input/gesture device (IGD) are disclosed. The method includes estimating a first axis vector of the input/gesture device (IGD) relative to the surface of the mobile device (MD), as a first frame of reference, using readings from a first type of sensor; and estimating the first axis vector of the IDG relative to a different, second frame of reference using a gyroscope integration of readings from the 3-axis gyroscope. The method further includes aligning the first axis vector of the IDG in the first frame of reference with the first axis vector of the IDG in the second frame of reference; minimizing a change in the alignment of the first axis vectors between the first frame of reference and the second frame of reference; and determining the roll angle of the IDG relative to the surface of the MD.

Methods, apparatus and systems using motion of various input devices for controlling consumer devices

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MOUNTAIN VIEW, CA, United States of America

Mark Turner