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Alexei Gaidarzhy

Alexei Gaidarzhy, Boston, MA US

Patent application numberDescriptionPublished
20090243747METHODS AND DEVICES FOR COMPENSATING A SIGNAL USING RESONATORS - Compensation of a signal using resonators as well as related methods and devices are described. Some embodiments include methods and devices for performing frequency compensation on a signal.10-01-2009
20090267699TIMING OSCILLATORS AND RELATED METHODS - Timing oscillators as well as related methods and devices are described. A timing oscillator may include a mechanical resonating structure with major elements and minor elements coupled to the major element. The timing oscillator can generate stable signals with low phase noise at very high frequencies which allows a timing oscillator to be used effectively in a number of devices including computers and mobile phones for time and data synchronization purposes. The signal generated by the timing oscillator can be tuned using a driver circuit and a compensation circuit.10-29-2009
20090267700TIMING OSCILLATORS AND RELATED METHODS - Timing oscillators as well as related methods and devices are described. A timing oscillator may include a mechanical resonating structure with major elements and minor elements coupled to the major element. The timing oscillator can generate stable signals with low phase noise at very high frequencies which allows a timing oscillator to be used effectively in a number of devices including computers and mobile phones for time and data synchronization purposes. The signal generated by the timing oscillator can be tuned using a driver circuit and a compensation circuit.10-29-2009
20100026136MICROMECHANICAL RESONATING DEVICES AND RELATED METHODS - Micromechanical resonating devices, as well as related methods, are described herein. The resonating devices can include a micromechanical resonating structure, an actuation structure that actuates the resonating structure, and a detection structure that detects motion of the resonating structure.02-04-2010
20110068834ELECTRO-MECHANICAL OSCILLATING DEVICES AND ASSOCIATED METHODS - Electro-mechanical oscillating devices designed to convert the frequency of electrical signal(s) and methods associated with the same are described. One example of such a frequency converting device is a mixer.03-24-2011

Patent applications by Alexei Gaidarzhy, Boston, MA US

Alexei Gaidarzhy, Brighton, MA US

Patent application numberDescriptionPublished
20100301703INTEGRATION OF PIEZOELECTRIC MATERIALS WITH SUBSTRATES - Devices having piezoelectric material structures integrated with substrates are described. Fabrication techniques for forming such devices are also described. The fabrication may include bonding a piezoelectric material wafer to a substrate of a differing material. A structure, such as a resonator, may then be formed from the piezoelectric material wafer.12-02-2010
20100314969MECHANICAL RESONATING STRUCTURES AND METHODS - Apparatus and methods of connecting mechanical resonating structures to a body are described. Multi-element anchors may include a flexible portion that flexes when the mechanical resonating structure vibrates. The flexible portion may have a length related to the resonance frequency of the mechanical resonating structures. Some of the multi-element anchors include elements that are oriented perpendicularly to each other. MEMS incorporating such structures are also described.12-16-2010
20110121682SIGNAL AMPLIFICATION BY HIERARCHAL RESONATING STRUCTURES - An electromechanical resonating structure, including: first level major elements coupled to each other to form a second or higher level hierarchy; and first level sub-micron size minor elements with a characteristic frequency and coupled to each of the first level major elements to form a second level hierarchy in which a signal is effectively amplified by vibrating each of the plurality of major elements in at least one mode determined by the geometry and dimensions of the first level sub-micron minor elements.05-26-2011
20110187227INTEGRATION OF PIEZOELECTRIC MATERIALS WITH SUBSTRATES - Devices having piezoelectric material structures integrated with substrates are described. Fabrication techniques for forming such devices are also described. The fabrication may include bonding a piezoelectric material wafer to a substrate of a differing material. A structure, such as a resonator, may then be formed from the piezoelectric material wafer.08-04-2011
20120006113Microelectromechanical Gyroscopes and Related Apparatus and Methods - In one embodiment, an apparatus includes a resonant structure having a plate, a drive electrode and a sense electrode. The resonant structure defines an axis substantially orthogonal to a plane defined by the plate when the resonant structure is not excited. The plate is formed from a piezoelectric material. The drive electrode is configured to excite the resonant structure, and the sense electrode is configured to sense a signal in response to rotation of the resonant structure about the axis.01-12-2012
20120013413TIMING OSCILLATORS AND RELATED METHODS - Timing oscillators as well as related methods and devices are described. A timing oscillator may include a mechanical resonating structure with major elements and minor elements coupled to the major element. The timing oscillator can generate stable signals with low phase noise at very high frequencies which allows a timing oscillator to be used effectively in a number of devices including computers and mobile phones for time and data synchronization purposes. The signal generated by the timing oscillator can be tuned using a driver circuit and a compensation circuit.01-19-2012
20120024058MICROELECTROMECHANICAL GYROSCOPES AND RELATED APPARATUS AND METHODS - In one embodiment, an apparatus comprises a micromechanical gyroscope and a circuit. The micromechanical gyroscope is configured to be excited in a first mode by a drive signal, and configured to be excited in a second mode by a gyroscopic effect. The circuit is coupled to the micromechanical gyroscope and configured to detect the gyroscopic effect when the micromechanical gyroscope is in the second mode.02-02-2012
20120056510INTEGRATION OF PIEZOELECTRIC MATERIALS WITH SUBSTRATES - Devices having piezoelectric material structures integrated with substrates are described. Fabrication techniques for forming such devices are also described. The fabrication may include bonding a piezoelectric material wafer to a substrate of a differing material. A structure, such as a resonator, may then be formed from the piezoelectric material wafer.03-08-2012

Patent applications by Alexei Gaidarzhy, Brighton, MA US

Alexei Gaidarzhy, Allston, MA US

Patent application numberDescriptionPublished
20090294638Nanomechanical Oscillator - A mechanical oscillator has components with dimensions in a sub-micron range to produce resonance mode oscillations in a gigahertz range. A major element is coupled to a minor, sub-micron element to produce large amplitude gigahertz frequency oscillation that is detected with readily available techniques. The mechanical structure can be formed according to a number of geometries including beams and rings and is excited with electrostatic, magnetic and thermal related forces, as well as other excitation techniques. The mechanical structure can be arranged in arrays for applications such as amplification and mixing and is less sensitive to shock and radiative environments than electrical or optical counterparts.12-03-2009
20100007443Nano electromechanical integrated-circuit filter - A nano electromechanical integrated circuit filter and method of making. The filter comprises a silicon substrate; a sacrificial layer; a device layer including at least one resonator, wherein the resonator includes sub-micron excitable elements and wherein the at least one resonator possess a fundamental mode frequency as well as a collective mode frequency and wherein the collective mode frequency of the at least one resonator is determined by the fundamental frequency of the sub-micron elements.01-14-2010
20100181868MULTI-PORT MECHANICAL RESONATING DEVICES AND RELATED METHODS - Multi-port devices having multiple electrical ports are described, as are related methods. Some of the multi-port devices may have two input ports and two output ports, and may be driven differentially, in a single-ended mode, in a single-ended to differential mode, or in a differential to single-ended mode. The multi-port devices may include one or more transducers coupled to the electrical ports.07-22-2010
20100182102MECHANICAL RESONATING STRUCTURES INCLUDING A TEMPERATURE COMPENSATION STRUCTURE - Mechanical resonating structures are described, as well as related devices and methods. The mechanical resonating structures may have a compensating structure for compensating temperature variations.07-22-2010

Patent applications by Alexei Gaidarzhy, Allston, MA US

Alexei Gaidarzhy, Cambridge, MA US

Patent application numberDescriptionPublished
20120067124RESONANT SENSING USING EXTENSIONAL MODES OF A PLATE - A device or system that incorporates teachings of the present disclosure may include, for example, a resonant structure having a plate, a mass and a set of electrodes. The plate can have an extensional mode at a frequency when excited. The set of electrodes can be used to measure an acceleration of the mass when the acceleration of the mass changes the frequency of the plate. Other embodiments are disclosed.03-22-2012