Abstract

Provided is a micro electro mechanical system (MEMS) resonating accelerometer. The MEMS resonating accelerometer according to the present invention comprises: a first inertial mass; a second inertial mass which is spaced at a predetermined distance from the first inertial mass on a first axis; an elastic body which is provided between the first and second inertial masses so as to apply elasticity; and a tuning fork which is connected to the elastic body and measures the change of frequency according to acceleration, wherein the longitudinal direction of the tuning fork is parallel to a second axis which is perpendicular to the first axis, the elastic body has an opening portion being in a circular shape with a portion thereof removed, and one end of the tuning fork penetrates the opening portion and is connected to the inner surface of the elastic body.

IPC Classes  ?

• G01P 15/10 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by vibratory elements by vibratory strings
• G01P 15/097 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by vibratory elements
• G01P 15/08 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values
• G01P 15/125 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by capacitive pick-up

Abstract

Provided is a micro electro mechanical system (MEMS) resonant accelerometer. The MEMS resonant accelerometer according to the present invention comprises: a first inertial mass; a second inertial mass which is spaced at a predetermined distance from the first inertial mass on a first shaft; an elastic body which is provided between the first and second inertial masses so as to apply elasticity; and a tuning fork which is connected to the elastic body and measures the change of frequency according to acceleration, wherein the longitudinal direction of the tuning fork is parallel to a second shaft which is perpendicular to the first shaft, the elastic body has an opening portion being in a circular shape with a portion thereof removed, and one end of the tuning fork penetrates the opening portion and is connected to the inside surface of the elastic body.

IPC Classes  ?

• G01P 15/10 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by vibratory elements by vibratory strings
• G01C 19/56 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces
• B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes

Abstract

Provided is a lawn mower for forming images. The lawn mower includes: an image input unit receiving an image to be formed in a lawn area; a position detection unit detecting position information of the lawn mower on a movement path of the lawn mower; a lawn mowing unit processing a lawn according to any one of a plurality of lawn processing patterns which corresponds to each position on the movement path while the lawn mower moves along the movement path; and a control unit analyzing the image received from the image input unit, determining a lawn processing pattern, which corresponds to the position information detected by the position detection unit, to express the image in the lawn area and controlling the lawn mowing unit according to the determined lawn processing pattern and independently of the movement path.

IPC Classes  ?

• G01C 22/00 - Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers or using pedometers
• G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
• A01D 34/00 - MowersMowing apparatus of harvesters
• G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
• A01D 34/835 - MowersMowing apparatus of harvesters specially adapted for particular purposes

Abstract

Provided are a method and apparatus for correcting an error of a gyro sensor, and more particularly, a method and apparatus for correcting an error of a gyro sensor installed in a mobile robot.

IPC Classes  ?

• G01C 25/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
• G01C 19/5776 - Signal processing not specific to any of the devices covered by groups
• G05D 1/02 - Control of position or course in two dimensions

Abstract

A car navigation system is provided. The car navigation system comprises: a car-speed sensor which calculates speed in the progressing direction of a car; an acceleration sensor which calculates acceleration in the progressing direction of the car; a global positioning system (GPS) receiver which calculates navigation information of the car by using a GPS signal; and an altitude calculator which calculates the altitude of the car by using the information calculated by the car-speed sensor and the acceleration sensor and the information calculated by the GPS receiver.

IPC Classes  ?

• G01C 21/28 - NavigationNavigational instruments not provided for in groups specially adapted for navigation in a road network with correlation of data from several navigational instruments
• G01C 21/26 - NavigationNavigational instruments not provided for in groups specially adapted for navigation in a road network
• G01C 21/10 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration
• G08G 1/0968 - Systems involving transmission of navigation instructions to the vehicle

Abstract

The present invention relates to a user command input device, and to a user command input device comprising a disengagement-preventing part in a main body having, inter alia, a movement sensor for sensing input movements and a button for receiving input in the form of specific commands from the user.

IPC Classes  ?

• H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• H04B 1/38 - Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving

Abstract

Provided is a user instruction input device operating in a three-dimensional space. The user instruction input device includes a first sensor that senses the angular rate of the device centering on at least one axis, a second sensor that senses the acceleration of the device at least for one direction, and a processing unit that calculates a first rotation angle in a coordinate system independent of the attitude of the first device from the output value of the first sensor, calculates a second rotation angle in the coordinate system from the output value of the second sensor, and calculates the final attitude angle by combining the first rotation angle and the second rotation angle.

IPC Classes  ?

• G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form

Abstract

Provided is an input device for operating in a three-dimensional space and inputting user instructions. The input device includes a first operation unit that calculates a first rotation angle in a coordinate system independent of the attitude of the device based on the output value of a first sensor, a second operation unit that calculates a second rotation angle in the coordinate system based on the output value of a second sensor, an attitude angle measuring unit that calculates the attitude angle of the input device by combining the first rotation angle and the second rotation angle, and an intensity calculation unit that calculates force intensity in the coordinate system using acceleration of the input device and the attitude angle of the input device obtained in the attitude measuring unit.

IPC Classes  ?

• G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form

Abstract

Provided is an input device for operating in a three-dimensional space and inputting user instructions. The input device includes a first operation unit that calculates a first rotation angle in a coordinate system independent of the attitude of the device based on the output value of a first sensor, a second operation unit that calculates a second rotation angle in the coordinate system based on the output value of a second sensor, an attitude angle measuring unit that calculates the attitude angle of the input device by combining the first rotation angle and the second rotation angle, and an intensity calculation unit that calculates force intensity in the coordinate system using acceleration of the input device and the attitude angle of the input device obtained in the attitude measuring unit.

IPC Classes  ?

• G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators

Abstract

A wireless hands-free controller is provided. The wireless hands-free controller according to an embodiment of the present invention comprises a vibration sensor part that senses vibration, a vibration pattern analysis part that analyzes the frequency pattern of vibration, and a power control part that controls the hands-free power supply based on the frequency pattern.

IPC Classes  ?

• H04B 1/40 - Circuits

Abstract

The present invention relates to an apparatus and a method for motion recognition, in which a pointing device for moving a pointer in accordance with the motion recognized by a motion sensor is equipped with a contact sensor to move the pointer only when a user intends to move the pointer.

IPC Classes  ?

• G06F 3/033 - Pointing devices displaced or positioned by the userAccessories therefor

Abstract

The present invention relates to a method and an apparatus for correcting errors in a gyro sensor, and more particularly, to a method and an apparatus for correcting a gyro sensor mounted on a mobile robot.

IPC Classes  ?

• B25J 9/16 - Programme controls

Abstract

Provided are a control apparatus and method. The control apparatus includes: a measurement module which measures a motion of the control apparatus due to an external force; and a signal generation module which generates a signal corresponding to the measured motion, wherein the signal is transmitted to a display device to adjust a state of the display device according to the signal.

IPC Classes  ?

• G08B 23/00 - Alarms responsive to unspecified undesired or abnormal conditions

Abstract

Provided are a control apparatus and method. The control apparatus includes: a measurement module which measures a motion of the control apparatus due to an external force; and a signal generation module which generates a signal corresponding to the measured motion, wherein the signal is transmitted to a display device to adjust a state of the display device according to the signal.

IPC Classes  ?

• G06F 3/14 - Digital output to display device