Patent application number | Description | Published |
20080202241 | Device with a Sensor Arrangement | 08-28-2008 |
20090073119 | DETECTION CIRCUIT FOR DETECTING MOVEMENTS OF A MOVABLE OBJECT - Detection circuits ( | 03-19-2009 |
20090101802 | DETECTION CIRCUIT FOR DETECTING MOVEMENTS OF A MOVABLE OBJECT - Detection circuits ( | 04-23-2009 |
20090101803 | DETECTION CIRCUIT FOR DETECTING MOVEMENTS OF A MOVABLE OBJECT - Detection circuits ( | 04-23-2009 |
20090101804 | DETECTION CIRCUIT FOR DETECTING MOVEMENTS OF A MOVABLE OBJECT - Detection circuits ( | 04-23-2009 |
20100154553 | PRESSURE GAUGE - A pressure/vacuum sensor and method, comprising: driving a MEMS piezoresistive resonator ( | 06-24-2010 |
20100277262 | RESONATOR - A resonator comprises a resonator mass ( | 11-04-2010 |
20110025426 | FREQUENCY SELECTION AND AMPLIFYING DEVICE - A frequency selection device comprises an oscillator, which comprises a resonator mass which is connected by a spring arrangement to a substrate, and a piezoresistive element for controlling oscillation of the resonator mass, which comprises a piezoresistive element connected to the resonator mass. A current is driven through the piezoresistive element to control oscillation of the resonator mass. An input is provided for coupling a signal from which a desired frequency range is to be selected, to the resonator mass; and a detector is used for detecting a signal amplified by the oscillator. | 02-03-2011 |
20110031380 | OPTICAL POINTING DEVICE - The optical pointing device of the present invention comprises a base and an actuator movable connected to the base, wherein the actuator comprises a reflective portion on a side facing the base, and wherein the base comprises a light source for emitting light towards the reflective portion of the actuator, a detector comprising one of more detection units for detecting at least a part of the light reflected by the reflective portion of the actuator, and a transparent element arranged between the actuator and at least one of the light source and the detection units, for providing a closed transparent housing for the light source and/or the detection units. | 02-10-2011 |
20110168531 | DEVICE WITH A MICRO ELECTROMECHANICAL STRUCTURE - A device has a micro electromechanical structure ( | 07-14-2011 |
20110168874 | DETECTION SYSTEM FOR THE DETECTION OF MOVEMENTS OF A MOVABLE OBJECT, A METHOD OF DETECTING MOVEMENTS OF A MOVABLE OBJECT, AND AN IC HAVING IMPLEMENTED THEREIN THE DETECTION SYSTEM - The present invention relates to a detection system for the detection of movements of a movable object. The detection system may comprises: a light emitting device (S) for emitting light, a reflecting unit ( | 07-14-2011 |
20110193449 | OSCILLATOR DEVICE - An oscillator device comprises a resonator mass which is connected by a spring arrangement to a substrate and a feedback element for controlling oscillation of the resonator mass, which comprises a piezoresistive element connected between the resonator mass and the substrate. The invention provides an oscillator device in which the two parts (resonator and circuit to close the oscillation loop) are combined inside one single oscillator device, which can be a MEMS device. | 08-11-2011 |
20110204999 | FRAME-SHAPED MEMS PIEZORESISTIVE RESONATOR - A novel Si MEMS piezoresistive resonator is described. The resonator has a shape of a frame, such as a ring or a polygon frame, which has two or more anchors. Electrodes located at the outer or inner rim of the resonant structure are used to excite the structure electrostatically into resonance with a desired mode shape. One or plurality of locally doped regions on the structure is used for piezoresistive readout of the signal. In the most preferred embodiments, the structure is a ring, which has four anchors, two electrodes and four piezoresistive regions at different segments of the structure. The piezoresistive regions are alternatively located at the outer rim and inner rim of the structure in such a way that the piezoresistive signals of the same sign from different regions can be collected. Advantages of this device are large readout signal, large electrode area, robustness, suppressed out-of-plane vibration and larger usable linear range. | 08-25-2011 |
20110240836 | OPTICAL ANGULAR SENSOR AND OPTICAL ROTATIONAL SPEED SENSOR - In an example embodiment, a system detects the degree of rotation of a knob, the system comprises a shaft having a length and a first end and a second end; the second end has an oblique reflective surface defined thereon; the first end fixedly attached to the knob. Containing the shaft is a rotation body, having a receptacle to accommodate the second end of the shaft with the oblique reflective surface exposed. An integrated circuit optical module is optically coupled the rotation body and the optical module detects light irradiance profile from the oblique reflective surface. The optical module includes a solid state light source and a plurality of photo detectors which generate an electrical signal upon exposure to light. As the knob is rotated, the oblique reflective surface generates a changing asymmetric irradiance profile, the change being translated into an electrical signal via the photo detectors. The electrical signal corresponds to the degree of rotation of the knob. | 10-06-2011 |
20120001860 | DETECTION SYSTEM AND METHOD FOR DETECTING MOVEMENTS OF A MOVABLE OBJECT - The present invention concerns a detection system and a corresponding method for detecting movements of a movable object that compensate for unintentional tilt movement of the movable object in a first direction and/or in a second direction when a linear movement in a third direction is detected. | 01-05-2012 |
20120025819 | MAGNETORESISTIVE SENSOR - A magnetoresistive sensor comprising first and second magnetoresistive elements is disclosed. Each magnetoresistive element is coupled at a respective first end to a common ground terminal and comprises one or more magnetoresistive segments, each overlying a corresponding segment of an excitation coil. The resistance of the magnetoresistive segments in each of the first and second magnetoresistive elements is the same and the resistance of the segments of the excitation coil corresponding to the first magnetoresistive element is the same as the resistance of the segments of the excitation coil corresponding to the second magnetoresistive element. | 02-02-2012 |
20120032747 | MEMS OSCILLATOR - A piezoresistive MEMS oscillator comprises a resonator body, first and second drive electrodes located adjacent the resonator body for providing an actuation signal; and at least a first sense electrode connected to a respective anchor point. The voltages at the electrodes are controlled and/or processed such that the feedthrough AC current from one drive electrode to the sense electrode is at least partially offset by the feedthrough AC current from the other drive electrode to the sense electrode. | 02-09-2012 |
20120091546 | Microphone - A microphone comprises a substrate ( | 04-19-2012 |
20120262241 | MEMS RESONATOR AND METHOD OF CONTROLLING THE SAME - A MEMS resonator has a component which provides a capacitance associated with the transduction gap which has a temperature-dependent dielectric characteristic, which varies in the same direction (i.e. the slope has the same sign) as the Young's modulus of the material of the resonator versus temperature. This means that the resonant frequency is less dependent on temperature. | 10-18-2012 |
20130009716 | MEMS RESONATOR - A MEMS resonator has a resonator mass in the form of a closed ring anchored at points around the ring. A set of ring comb electrode arrangements is fixed to the ring at locations between the anchor points, to couple the input (drive) and output (sense) signals to/from the resonator mass. | 01-10-2013 |
20130069875 | METHOD AND APPARATUS FOR MISALIGNMENT COMPENSATION IN OPTICAL JOYSTICKS - An apparatus for misalignment compensation in optical joysticks is described. The optical joystick includes a light source, a plurality of photodetectors, and circuitry for controlling operation of the optical joystick. In some embodiments, each of the photodetectors may partitioned into a plurality of photodetector elements and select photodetector elements are configured to be individually activated in order to cause an electrical shifting of the selected photodetector elements to achieve a different operational alignment position of optical components of the optical joystick. In some embodiments, the light source may be similarly be calibrated by individually activating portions of a light-source array to cause an electrical shift. Various other embodiments and methods of operation are also described. | 03-21-2013 |
20140159826 | MEMS OSCILLATORS - The invention provides MEMS oscillator designs in which the thermal actuation and piezoresistive detection signals are separated. | 06-12-2014 |
20140208857 | MEMS RESONATOR PRESSURE SENSOR - A resonant MEMS pressure sensor in which the resonator mass of the MEMS resonator is anchored both to the fixed base beneath the resonator cavity as well as to the top membrane over the resonator cavity. This provides a more robust fixing of the resonator mass and offers a dependence of resonant frequency on the pressure outside the cavity. | 07-31-2014 |
20140366641 | FLOW SENSOR - Flow sensors for measuring the flow of an ion-containing fluid may be implemented using mechanical or electrical techniques. Mechanical flow sensors are have moving parts and therefore may be unreliable after some time and are expensive to manufacture. Hall-effect type flow sensors typically require a reversible magnetic field to compensate for electrochemical effects. A flow meter including such a sensor uses an electromagnet. A flow sensor ( | 12-18-2014 |