Wireless motion processing sensor systems suitable for mobile and battery operation

摘要

The present invention relates to a combination of a 6-axis motion sensor having a 3-axis gyroscope and a 3-axis linear accelerometer, a motion processor and a radio integrated circuit chip (IC), wherein the intelligence in the motion processor enables the communication between the motion sensor, the radio IC and the external network. The motion processor also enables power savings by adaptively controlling the data rate of the motion sensor, depending on the amount or speed of the motion activity.

主权项

1. A handheld device, comprising:
a sensor component configured to generate, based on a data sampling rate, data in response to detection of a movement of the handheld device using sensors comprising a 3-axis angular rate sensor and a 3-axis linear acceleration sensor; a processor component configured to:
adaptively adjust the data sampling rate based on a determination that the movement satisfies a condition with respect to an amount of motion of the handheld device, wherein the data sampling rate adaptively increases as the amount of motion increases, and wherein the data sampling rate adaptively decreases as the amount of motion decreases;determines, based on the condition, different power states for different portions of the sensors associated with different axes of the handheld device;adjust the data sampling rate based on an expected movement;process portions of the data to obtain processed data; andsend the processed data directed to a base station via a wireless network, the processed data being a digital word and time stamp, wherein the digital word identifies a predefined gesture or movement.