National Yang Ming Chiao Tung University

J-mex Inc.

Chia-Wei Lee

Tsung-Lin Chen

Chien-Yu Chi

Chi-Hung Chen

Meng-Yu Lee

Chih-Hung Hsu

Chin-Ting Chu

Te-Hsi Chen

An operating method in a virtual environment through a wearable device is disclosed, wherein the wearable device has a motion sensor, the virtual environment has an operated object and a virtual device corresponding to the wearable device, the corresponding virtual device has a first operational data constraint, and the operated object has a second operational data constraint. The operating method comprises the following steps of: using the motion sensor to generate a motion sensed data; causing the corresponding virtual device to generate a derived data according to the motion sensed data, wherein the derived data indicates an interaction relationship between the virtual device and the operated object; and when the virtual device separated from the operated object under the interaction relationship, moving the operated object in accordance with the derived data.

Operating method for wearable device interacting with operated device in virtual reality and operating device thereof

The present invention proposes a single-axis-control-input gyroscope system having imperfection compensation, which comprises a gyroscope and a state observer. The gyroscope includes a mechanical structure, and the dynamic behavior of the mechanical structure is described with a plurality of system parameters and a plurality of dynamic equations. The system parameters include a mass of the gyroscope, two main-axis spring constants, a cross-axis spring constant, two main-axis damping coefficients, a cross-axis damping coefficient and an angular velocity. The mechanical imperfections cause the system parameters to deviate from the designed values and become unknown values. The gyroscope receives a single-axis control signal and outputs a plurality of gyroscopic system dynamics. The single-axis control signal includes at least two frequency signals. The state observer is coupled to the gyroscope to receive the gyroscopic system dynamics as the inputs thereof to feed back compensations to the state observer. Thereby is estimated an angular velocity.

Single-axis-control-input gyroscope system having imperfection compensation

An MEMS gyroscope is disclosed, capable of computing the rotating angle of a DUT being attached thereto without the need to execute an off-line calibration process, of precluding the execution of an integration process, and of executing an on-line compensation process for the error introduced by the sensing circuit defect and by the mechanical structure defect of its gyroscope module. The disclosed MEMS gyroscope comprises: a gyroscope module, a sensing module coupled with the gyroscope module, and a control module couple with the gyroscope module and the sensing module, respectively. The control module receives the system dynamic of the gyroscope module sensed by the sensing module, and applies a gyroscope control method for controlling the gyroscope module and computing the rotating angle of the DUT. Moreover, the control module outputs a control signal including two extra frequency signals, to the gyroscope module, for driving the gyroscope module into operation.

MEMS gyroscope

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Hsinchu, Taiwan

Chia-Wei Lee