| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073514020 | Angular acceleration | 17 |
| 20090139328 | Packaged micro movable device and method for making the same - A method is provided for making packaged micro-devices each including a micro movable element, a first packaging member formed with a recess, and a second packaging member formed with another recess. The micro movable element has a movable part. In accordance with the method, a device wafer is prepared for forming a plurality of micromovable elements. A first packaging wafer, formed with a plurality of recesses corresponding in position to the movable parts of the respective movable elements, is bonded to one surface of the device wafer. A second packaging wafer, formed with a plurality of recesses, is bonded to the other surface of the device wafer. The resulting laminate assembly is cut into separate products. | 06-04-2009 |
| 20090145225 | Vertically integrated 3-axis MEMS angular accelerometer with integrated electronics - Sensors for measuring angular acceleration about three mutually orthogonal axes, X, Y, Z or about the combination of these axes are disclosed. The sensor comprises a sensor subassembly. The sensor subassembly further comprises a base which is substantially parallel to the X-Y sensing plane; a proof mass disposed in the X-Y sensing plane and constrained to rotate substantially about the X, and/or Y, and/or Z, by at least one linkage and is responsive to angular accelerations about the X, and/or Y, and/or Z directions. Finally, the sensor includes at least one electrode at the base plate or perpendicular to the base plate and at least one transducer for each sensing direction of the sensor subassembly responsive to the angular acceleration. Multi-axis detection is enabled by adjusting a configuration of flexures and electrodes. | 06-11-2009 |
| 20090235744 | Detecting device for a walk-substituting cart to automatically slow down when moving down slope - A walk-substituting cart is equipped with a detecting device, which can detect the existence and measure the inclination of a downward slope that the walk-substituting cart is moving on; when the cart is moving down a slope, the detecting device will send a signal to a power source of the walk-substituting cart so that the power source can automatically slow down; therefore, the rider won't have to continue operating the brake lever or the brake pedal of the walk-substituting cart a long time when the cart is moving down a slope. | 09-24-2009 |
| 20090282917 | Integrated multi-axis micromachined inertial sensing unit and method of fabrication - Integrated micromachined inertial sensing unit with multi-axis angular rate and acceleration sensors and method of fabricating the same. Micromachined angular rate and acceleration sensors are integrated together with an application-specific integrated circuit (ASIC) in one compact package. The ASIC combines many separate functions required to operate multiple rate sensors and accelerometers into a single chip. The MEMS sensing elements and the ASIC are die-stacked, and electrically connected either directly using ball-grid-arrays or wirebonding. Through the use of a single package and single ASIC for multiple angular rate and acceleration sensors, significant reduction in cost is achieved. | 11-19-2009 |
| 20110197677 | VERTICALLY INTEGRATED 3-AXIS MEMS ANGULAR ACCELEROMETER WITH INTEGRATED ELECTRONICS - Sensors for measuring angular acceleration about three mutually orthogonal axes, X, Y, Z or about the combination of these axes are disclosed. The sensor comprises a sensor subassembly. The sensor subassembly further comprises a base which is substantially parallel to the X-Y sensing plane; a proof mass disposed in the X-Y sensing plane and constrained to rotate substantially about the X, and/or Y, and/or Z, by at least one linkage and is responsive to angular accelerations about the X, and/or Y, and/or Z directions. Finally, the sensor includes at least one electrode at the base plate or perpendicular to the base plate and at least one transducer for each sensing direction of the sensor subassembly responsive to the angular acceleration. Multi-axis detection is enabled by adjusting a configuration of flexures and electrodes. | 08-18-2011 |
| 20120210791 | SENSOR ARRANGEMENT FOR DETERMINING AN ANGLE OF ROTATION - A sensor arrangement for determining an angle of rotation of at least one shaft when rotated around its axis of rotation, which arrangement has at least one acceleration sensor which is arranged on the at least one shaft. The invention also relates to a method for determining an angle of rotation of at least one shaft when rotated around its axis of rotation, the angle of rotation being determined by at least one acceleration sensor which is arranged on the at least one shaft. | 08-23-2012 |
| 20130340524 | INERTIAL SENSOR - In an inertial sensor, an acceleration sensor element section includes a first movable section configured to respond to acceleration applied thereto and a diagnosis electrode configured to displace the first movable section with an electrostatic force according to voltage application from a control circuit section. An angular velocity sensor element section includes a second movable section configured to respond to an angular velocity applied thereto and a driving electrode configured to displace the second movable section with an electrostatic force according to voltage application from the control circuit section. A voltage signal input to the driving electrode and a voltage signal input to the diagnosis electrode are the same voltage signal. The voltage signal input to the diagnosis electrode is a signal for detecting a mechanical failure. Carrier signal for detecting displacement of the first movable section has frequency higher than frequency of signal applied to the diagnosis electrode. | 12-26-2013 |
| 20140007683 | METHOD FOR DETERMINING THE ANGULAR POSITION OF AN ELECTRONIC MODULE FIXED TO THE INNER FACE OF THE TREAD OF A TIRE - Method for determining the angular position of an electronic module fixed to the inner face of the tread of a tire fitted to a wheel of a vehicle. A sensor for measuring the radial acceleration of the wheel is integrated into the electronic module, measuring at least one measurement of the radial acceleration for determining the value of the period of revolution of the wheel, and detecting a variation of the radial acceleration representative of a position of the electronic module contacting the ground, the position of the electronic module in which the variation is detected is assigned the origin function of a frame of reference defined by the origin and a reference unit formed by an angular sector whose length is substantially shorter than the mean length of the footprint of the grounded tire, and the angular positions of the electronic module in the frame of reference are determined. | 01-09-2014 |
| 20140069189 | ANGULAR VELOCITY SENSOR - Disclosed herein is an angular velocity sensor including: first and second mass bodies; a first frame provided at an outer side of the first and second mass bodies; a first flexible part respectively connecting the first and second mass bodies to the first frame; a second flexible part respectively connecting the first and second mass bodies to the first frame; a second frame provided at an outer side of the first frame; a third flexible part connecting the first and second frames to each other; and a fourth flexible part connecting the first and second frames to each other. | 03-13-2014 |
| 20140102195 | Electrode Arrangements for Quadrature Suppression in Inertial Sensors - A substrate for an inertial sensor system includes a plurality of electrode arrangements, each electrode arrangement including an acceleration sensor electrode and a pair of quadrature adjusting electrodes on opposite sides of the acceleration sensor electrode, where each electrode arrangement is capable of being overlaid by a corresponding plate of a shuttle such that the plate completely overlays the acceleration sensor electrode and partially overlays the pair of quadrature adjusting electrodes on opposite sides of the acceleration sensor electrode such that capacitive coupling between the plate and each of the quadrature adjusting electrodes is dependent upon the rotational position of the at least one shuttle while capacitive coupling between the plate and the acceleration sensor electrodes is substantially independent of the rotational position of the at least one shuttle. | 04-17-2014 |
| 20140283603 | Micromechanical Element, Component Having a Micromechanical Element, and Method for Producing a Component - A micromechanical element ( | 09-25-2014 |
| 20140311243 | ESTIMATION OF SIDEWALL SKEW ANGLES OF A STRUCTURE - An apparatus ( | 10-23-2014 |
| 20150107358 | METHOD AND APPARATUS FOR DETERMINING A RELATIVE ORIENTATION OF POINTS ON A RIGID BODY - An inertial measurement unit is affixed to a rigid body. The inertial measurement includes a gyroscope that measures a first angular velocity and an angular acceleration; a first accelerometer that measures a first acceleration; a communications unit that receives a measurement signal, the measurement signal including a second acceleration transmitted from a second accelerometer, the second accelerometer being affixed to the rigid body; and a controller that calculates a relative orientation of the inertial measurement unit and the second accelerometer, and a distance separating the inertial measurement unit and the second accelerometer. | 04-23-2015 |
| 20150135831 | MEMS ROTATION SENSOR WITH INTEGRATED ELECTRONICS - A rotational sensor for measuring rotational acceleration is disclosed. The rotational sensor comprises a sense substrate; at least two proof masses, and a set of two transducers. Each of the at least two proof masses is anchored to the sense substrate via at least one flexure and electrically isolated from each other; and the at least two proof masses are capable of rotating in-plane about a Z-axis relative to the sense substrate, wherein the Z-axis is normal to the substrate. Each of the transducers can sense rotation of each proof mass with respect to the sense substrate in response to a rotation of the rotational sensor. | 05-21-2015 |
| 20160054148 | DEVICE FOR DETECTING THE STATE OF A LEAF OF DOORS, GATES AND THE LIKE | 02-25-2016 |
| 073514030 | Fluid or fluent inertial mass (e.g., electrons, ions, plasma) | 1 |
| 20110100123 | Thermal Bubble Type Angular Accelerometer - An RFID, Bluetooth as well as zigbee based thermal bubble type angular accelerometer includes a flexible substrate, a base layer, at least one cavity, and at least one sensing assembly. The base layer is formed on the flexible substrate. The at least one cavity is formed on the base layer. The at least one sensing assembly is suspended over the at least one cavity. The sensing assembly comprises a heater and two temperature sensing elements, wherein the two temperature sensing elements are substantially symmetrically disposed on opposite sides of the heater, and the heaters and the two temperature sensing elements extend in a radial direction. | 05-05-2011 |
| 073514040 | Inertial flywheel | 1 |
| 20120272735 | Micromechanical Rotary Acceleration Sensor and Method for Detecting a Rotary Acceleration - The disclosure relates to a micromechanical rotary acceleration sensor including a substrate with at least one anchoring device and at least two flywheel masses. At least one of the flywheel masses is connected to at least one anchoring device by means of a coupling element. The at least one anchoring device is designed in such a manner that the at least two flywheel masses are elastically deflectable from a respective rest position about at least one axis of rotation. The at least two flywheel masses is designed in such a manner that they have different natural frequencies. | 11-01-2012 |
