Class / Patent application number | Description | Number of patent applications / Date published |
073514350 | Electric | 24 |
20080229827 | Electronic part, method for fabricating electronic part, acceleration sensor, and method for fabricating acceleration sensor - There is provided an electronic part that has a substrate, an insulating layer formed on the substrate and a pad formed on the insulating layer and is electrically connected with an external terminal and that further includes a cavity formed at least at either one of the substrate corresponding to a bottom surface of the electrode pad and a region of the insulating layer. It provides a highly reliable electronic part, its fabrication method as well as an acceleration sensor using the electronic part and its fabrication method. | 09-25-2008 |
20110283796 | INERTIAL FORCE SENSOR - An inertial force sensor includes a detecting device which detects an inertial force, the detecting device having a first orthogonal arm and a supporting portion, the first orthogonal arm having a first arm and a second arm fixed in a substantially orthogonal direction, and the supporting portion supporting the first arm. The second arm has a folding portion. In this configuration, there is provided a small inertial force sensor which realizes detection of a plurality of different inertial forces and detection of inertial forces of a plurality of detection axes. | 11-24-2011 |
20120017681 | ACCELERATION SENSOR METHOD FOR OPERATING AN ACCELERATION SENSOR - An acceleration sensor includes a housing, a first seismic mass which is formed as a first asymmetrical rocker and is disposed in the housing via at least one first spring, a second seismic mass which is formed as a second asymmetrical rocker and is disposed in the housing via at least one second spring, and a sensor and evaluation unit which is designed to ascertain information regarding corresponding rotational movements of the first seismic mass and the second seismic mass in relation to the housing and to determine acceleration information with respect to an acceleration of the acceleration sensor, taking the ascertained information into account. In addition, a method for operating an acceleration sensor is disclosed. The rockers execute opposite rotational movements in response to the presence of an acceleration. A differential evaluation of the signals makes it possible to free the measuring signal of any existing interference signals. | 01-26-2012 |
20120073372 | MICROELECTROMECHANICAL SYSTEM - In various embodiments, a microelectromechanical system may include a chip, a substrate, a signal generator, and a fixing structure configured to fix the chip to the substrate. The chip may be fixed in such a way that, upon an acceleration of the microelectromechanical system, the chip is moved relative to the substrate. Furthermore, a signal may be generated by the movement of the chip by means of the signal generator. | 03-29-2012 |
20120304770 | DRIVING CONTROL MODULE AND METHOD FOR INERTIAL SENSOR - Disclosed herein is a driving control module for an inertial force. The driving control module includes a timing control unit that applies a driving signal and a sensing signal; a driving unit that receives the driving signal from the timing control unit and applies the driving signal to a sensor; a sensing unit that receives the sensing signal from the timing control unit, applies the sensing signal to a sensor, and senses stabilization driving and inertial force of the sensor; and a driving control unit that locks application of the driving signal from the timing control unit to the driving unit. As a result, the exemplary embodiment of the present invention can provide a driving control module and a method for an inertial sensor capable of obtaining a maximum sampling rate by sensing the stabilization driving of the driving unit and locking and sensing the application of the driving signal from the timing control unit at the time of the stabilization driving and capable of performing an efficient control by reducing the additional driving for stable sensing and the sensing loss. | 12-06-2012 |
20130118258 | INERTIAL SENSOR AND METHOD OF MANUFACTURING THE SME - Disclosed herein are an inertial sensor and a method of manufacturing the same. The inertial sensor includes: a flexible part; a mass body movably supported by the flexible part and including a metal; a post supporting the flexible part; piezoelectric elements driving the mass body or sensing displacement of the mass body; and a package enclosing the flexible part, the mass body, and the post, wherein the metal has a melting point lower than the Curie temperature of the piezoelectric elements and higher than that of a solder forming connection parts for a surface mounting technology (SMT) provided on the package. | 05-16-2013 |
20130118259 | Acceleration sensor - An acceleration sensor is provided. The acceleration sensor contains a first electrically conductive element and a second electrically conductive element. An electrically insulative element is connected to the first electrically conductive element and the second electrically conductive element, where at least a portion of the first electrically conductive element and at least a portion of the second electrically conductive element make contact with the electrically insulative element. At least one electrically conductive spring is located within a cavity of the sensor, wherein the cavity is defined by at least one surface of the first electrically conductive element, at least one surface of the electrically insulative element, and at least one surface of the second electrically conductive element. | 05-16-2013 |
20130247668 | INERTIAL SENSOR MODE TUNING CIRCUIT - This document discusses, among other things, an mode matching circuit for a inertial sensor including an oscillator circuit configured to selectively couple to a sense axis of an inertial sensor and to provide sense frequency information of the sense axis, a frequency comparator configured to receive the sense frequency information of the sense axis and drive frequency information of the inertial sensor, and to provide frequency difference information to a processor, and a programmable bias source configured to apply a bias voltage to the sense axis to set a sense frequency of the sense axis in response to a command from the processor, and to maintain a desired frequency difference between the sense frequency and a drive frequency of the inertial sensor. | 09-26-2013 |
20140116137 | ACCELERATION SENSOR - Acceleration sensor comprises vibrating element including piezoelectric body, circuit board amplifying output charge of the piezoelectric body that is generated due to bending vibration of the vibrating element, and sensor housing composed of highly conductive material, the sensor housing loading the vibrating element and the circuit board. The circuit board includes one or two extending region(s) formed so as to protrude from one side of the circuit board, the extending region(s) connecting mechanically and electrically the circuit board to the vibrating element. The sensor housing includes supporting base supporting the vibrating element, and recess portion is formed on the supporting base. The supporting base is configured such that the extending region(s) of the circuit board cover(s) the recess portion, and the vibrating element is fixed and supported by insulating adhesive agent with which space that is formed from the recess portion and the extending region(s) is filled. | 05-01-2014 |
20140157897 | Hung Mass Accelerometer With Differential Eddy Current Sensing - A new class of accelerometer uses a differential Eddy current sensor to sense the displacement of the proof mass. This accelerometer can provide improved performance in an open-loop configuration based on the thermal stability and improved linearity of the differential Eddy current sensor. The accelerometer may provide lower cost alternatives to commercial grade accelerometers and lower cost and higher reliability alternatives to strategic grade accelerometers. | 06-12-2014 |
20140190260 | MEMS APPARATUS - Disclosed herein is a MEMS apparatus comprising a substrate with an etched area, a proof mass disposed at the center of the etched area, and beams supporting the proof mass. The beams are disposed between peripheries of the substrate and the proof mass. The substrate comprises first and second electrodes that are parallel to an axis and extend respectively from opposite regions on the substrate. The proof mass comprises third and fourth electrodes that are parallel to the axis and extend respectively from opposite edges of the proof mass. The first and third electrodes are opposite to and interlaid with each other. The second and fourth electrodes are opposite to and interlaid with each other. With the proof mass constructed as an oxide layer optionally enclosing a connecting layer or as a silicon substrate optionally with a covering layer, the MEMS apparatus is not susceptible to the variation of temperature. | 07-10-2014 |
20140245832 | MICRO-ELECTRO MECHANICAL APPARATUS WITH INTERDIGITATED SPRING - A micro-electro mechanical apparatus with interdigitated spring including a substrate, at least one first mass, a movable electrode, a stationary electrode, an anchor and an interdigitated spring is provided. The movable electrode is disposed on the mass along an axial direction. The stationary electrode is disposed on the substrate along the axial direction, and the movable electrode and the stationary electrode have a critical gap there between. The interdigitated springs connects the mass and the anchor along the axial direction. The interdigitated spring includes first folded portions, first connecting portions, second folded portions, and second connecting portions. Each first folded portion includes two first spans and a first head portion. Each second folded portion includes two second spans and a second head portion. A width of the first span and a width of the second span are greater than the critical gap respectively. | 09-04-2014 |
20140305213 | Apparatus And Methods For Time Domain Measurement Using Phase Shifted Virtual Intervals - Systems and methods for perturbation analysis of harmonic oscillations in the time domain according to several embodiments can include a time domain switching sensor and a resonator for imposing a first oscillation and a second oscillation on the sensor. The first and second oscillations can have the same amplitude A and period P, but can have a known phase shift. The sensor can use a time interval, which can be defined by the time between when the sensor passes a reference point due to motion caused by the first oscillation and when the sensor passes the same reference point, but due to motion caused by the second oscillation. With this configuration an improved accuracy of measurement for the system can be realized. | 10-16-2014 |
20150007658 | MOTION DETECTION DEVICE AND MOTION ANALYSIS SYSTEM - A motion detection device specifies a movement of at least one of a subject and a sporting gear as an indicator of a trigger signal, using an output from an inertial sensor. The movement of at least one of the subject and the sporting gear is specified in the output from the inertial sensor. The trigger signal is generated according to the specified movement. The subject causes the trigger signal to be generated at proper timing through his or her own movement. | 01-08-2015 |
20150013458 | PHYSICAL QUANTITY SENSOR, ELECTRONIC APPARATUS, AND MOVING OBJECT - A fixed electrode part, a movable member supported by a support part above the fixed electrode part to which a principal surface thereof is opposed, and a stopper part provided to be opposed to at least a part of an outer edge of the movable member and regulating in-plane rotation displacement of the principal surface of the movable member are provided. | 01-15-2015 |
20150013459 | IV CONVERTER AND INERTIAL FORCE SENSOR USING IV CONVERTER - An IV converter includes a first operational amplifier connected to the capacitive component, a second operational amplifier connected to the first operational amplifier, and an impedance element connected to the second operational amplifier. The first operational amplifier includes a first input terminal connected to the capacitive component, a second input terminal connected to a reference potential, and first and second output terminals. The first output terminal is connected to the first input terminal to constitute a feedback loop. The second operational amplifier includes a third input terminal connected to the second output terminal, a fourth input terminal connected to a reference potential, and a third output terminal connected to the third input terminal via the impedance element to constitute a feedback loop. The phases of the currents output by the first and second output terminals of the first operational amplifier are substantially identical to each other. | 01-15-2015 |
20150020593 | APPARATUS FOR DRIVING INERTIAL SENSOR AND CONTROLLING METHOD OF THE SAME - Disclosed herein is an apparatus for driving an inertial sensor, the apparatus including: at least one inertial sensor including a driving mass; an analog circuit unit detecting an amplitude value and a phase value of a driving mass resonance from a driving displacement signal of the inertial sensor; a first signal converting unit converting the amplitude value and the phase value into a digital value; a digital automatic gain control unit generating a control gain for controlling an amplitude or phase of the driving mass resonance so that the digitalized amplitude value or the phase value converges on a preset target value; and a second signal converting unit converting the control gain into an analog value and transmitting the analog value to the analog circuit unit, wherein the analog circuit unit applies a driving signal having the control gain reflected thereto to the inertial sensor. | 01-22-2015 |
20150033860 | ACCELERATION SENSOR AND ANGULAR VELOCITY SENSOR - Disclosed herein is an acceleration sensor, including: a mass body part including a first mass body and a second mass body; a frame supporting the first mass body and the second mass body; first flexible parts each connecting the first mass body and the second mass body to the frame; and second flexible parts each connecting the first mass body and the second mass body to the frame, wherein the first mass body and the second mass body are each connected to the frame so as to be eccentric by the second flexible part. | 02-05-2015 |
20150040669 | DEVICES, SYSTEMS AND METHODS FOR DETECTING AND EVALUATING IMPACT EVENTS - An impact detection device for detecting impacts to a body part of a user and various supporting systems are discussed. In an example, an impact detect device can include a circuit board, a component having a first section and a second section, a battery, and a molding for housing the circuit boat, the battery and the component. The circuit board can include impact detection circuitry including at least two sensors and a communication circuit. A zone of reduced rigidity can connect the first and second sections of the component, with the circuit board secured to the first section. The battery can be secured to the second section of the component allowing for flex relative to the circuit board. The molding can be shaped and dimensioned for mounting to a body part of the user. | 02-12-2015 |
20150040670 | Inertial Sensor Module - In a sensor module capable of changing a detection axis to detect a physical quantity, when a pad is provided at a location other than a corner point of an LSI-side, for the purpose of solving problems such as an increase in a chip surface area and an increase in development costs, caused by guide wiring for connecting the pad, the inertial sensor module is provided with: a first sensor element ( | 02-12-2015 |
20150075286 | ACCELERATION SENSOR HAVING AT LEAST ONE MICROMECHANICAL SENSOR ELEMENT FOR AN OCCUPANT PROTECTION SYSTEM IN A VEHICLE - In an acceleration sensor having two redundantly disposed micromechanical sensor elements having redundant signal paths with a separate A/D converter, a monitor includes a substitute circuit, integrated in the evaluation unit, for a sensor element, and a redundant further A/D converter, which converts the fixed, acceleration-independent output signal of the substitute circuit as a function of the shared operating parameters of all A/D converters to plausibilize the output signals of the acceleration sensor by means of the monitor. This makes it possible to detect faulty triggering of an airbag due to faults in both A/D converters. | 03-19-2015 |
20150362521 | TWO-DIMENSIONAL MATERIAL-BASED ACCELEROMETER - This disclosure provides systems and methods for a two-dimensional material-based accelerometer. In one embodiment, an accelerometer comprises a substrate; a membrane suspended over an opening in the substrate to form a suspended membrane, wherein the membrane is composed of a two-dimensional material; a mass structure coupled to the suspended membrane; and wherein the mass structure distorts the suspended membrane about a first axis in response to an applied acceleration providing a first change in a conductance of the suspended membrane so that the applied acceleration along the first axis can be detected. | 12-17-2015 |
20150377919 | PHYSICAL QUANTITY SENSOR AND ELECTRONIC APPARATUS - An acceleration sensor includes a base substrate provided with a first recess part, and a sensor part located on the first recess part and swingably supported in a depth direction of the first recess part by a support part, wherein the sensor part is sectioned into a first part and a second part by the support part, includes a movable electrode part in the first part and the second part, a through hole is provided at least at an end side in the second part larger in mass than the first part, and the base substrate includes a fixed electrode part in a position opposed to the movable electrode part in the first recessed part, and a second recess part deeper than the first recess part is provided in a position opposed to the end side of the sensor part. | 12-31-2015 |
20160146849 | Resin-Sealed Sensor Device - To provide a resin-sealed sensor device in which a sensor element that detects an inertial force such as acceleration or angular velocity is mounted on a pad, and the entire thereof is molded by resin, the resin-sealed sensor device with a high reliability by suppressing or resolving a sensor output error by reducing or resolving inclination or deformation of the sensor element or the pad at the time of resin injection, in a resin-sealed sensor device | 05-26-2016 |