Patents Examined by Richard A. Moller
  • Patent number: 6955084
    Abstract: The present invention discloses a gyroscope comprising an isolated resonator including a post proof mass and counterbalancing plate. One or more double beam flexures each interconnect the counterbalancing plate and the proof mass with a first and a second beam attached to the post proof mass and a third and a fourth beam attached to the counterbalancing plate. A baseplate is affixed to the resonator by the double beam flexures. The counterbalancing plate and the proof mass transfer substantially no net momentum to the baseplate when the resonator is excited.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: October 18, 2005
    Assignees: The Boeing Company, California Institute of Technology
    Inventors: A. Dorian Challoner, Kirill V. Shcheglov
  • Patent number: 6834528
    Abstract: The present invention describes a method to calibrate an angular measurement device using acceleration measurement device. The angular rate measurement device includes at least one angular measurement sensor, wherein the acceleration measurement device is able to distinguish the direction and strength of gravity. By performing the calibration method the scale factor(s) of the angular measurement device and the strength and direction of gravity can be obtained and/or corrected. An embodiment according to the method of the present invention describes optional use of a communication network to perform necessary evaluation and calculation steps at a remote device.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: December 28, 2004
    Assignee: Nokia Corporation
    Inventors: Jani Kappi, Jussi Collin
  • Patent number: 6732586
    Abstract: The present invention presents an angular velocity sensor having a self diagnosis function. An angular velocity sensor of the present invention includes a driving part for stably vibrating a driving part of a sensor element having a driver part and a detector part for detecting an angular velocity. The angular velocity sensor also includes a detection means for detecting the angular velocity of the sensor element. The angular velocity sensor obtains a self diagnosis signal for a malfunction by detecting a mechanical coupling signal obtained at the detection means.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: May 11, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiyuki Nozoe, Takeshi Uemura, Masami Tamura
  • Patent number: 6725719
    Abstract: MEMS-Integrated IMUs are possible based on a common substrate that provides a common oscillatory drive for the operation of the gyroscopes and accelerometers. The common substrate becomes the stable member utilized in conventional IMUs. The advantages of the embodiments are smallest size, flexibility in how IMUs are configured, reduced electronics and a single package. MEMS integration also reduces uncertainties due to separately developed instruments based on different fabrication processes, materials, assembly and alignment.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: April 27, 2004
    Assignee: Milli Sensor Systems and Actuators, Inc.
    Inventor: Donato Cardarelli
  • Patent number: 6722199
    Abstract: A sensor for detecting a rotational movement or an angular acceleration has at least one heating element and at least one sensor element and a fluid surrounding the heating element and the sensor element, the heating element producing in the fluid a convection flow zone through which an isothermal field is defined. The heating element and the sensor element are arranged with respect to an axis of rotation of the rotational movement or of the angular acceleration to be detected, in such a way that the sensor element is displaced relative to the isothermal field when a rotational movement or an angular acceleration takes place.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: April 20, 2004
    Inventor: Heinz Ploechinger
  • Patent number: 6722183
    Abstract: An impulse noise suppression circuit for an integrator-based ion current signal processing system includes a one-shot circuit activated by a trigger signal that is produced when a noise transient in a bandpass filtered ion current signal exceeds a predetermined threshold. The output pulse of the one-shot circuit is selected to have a pulse width configured to mask a substantial portion of the noise transient without masking the remaining filtered ion current signal during the remainder of a knock window in which knock is detected.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: April 20, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Ronald J. Kiess, Robert W. Koseluk, Raymond O. Butler, Jr., Philip Allen Karau, Jerral A. Long
  • Patent number: 6722203
    Abstract: An accelerometer system principally for use in high spatial density urban arrays for near-real-time mapping of strong shaking due to large earthquakes. The present accelerometer system offers research-grade “16-bit resolution” (=90.3 dB dynamic range =20log(215)), and yet it is inexpensive to buy and inexpensive to maintain. A more efficient and accurate calibration and compensation procedure is also disclosed. The improved accelerometer system is ideally suited to any situation requiring large numbers of instruments, low installation costs, high robustness, low maintenance costs, and near-real-time response. The price/performance point achieved by the present invention far exceeds past instrumentation and opens many new markets.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: April 20, 2004
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John Richard Evans, Robert H. Hamstra, Jr.
  • Patent number: 6718826
    Abstract: A balanced angular accelerometer is provided having a substrate, a fixed electrode with a plurality of fixed capacitive plates, and a rotational inertia mass with a central opening and substantially suspended over a cavity and including a plurality of movable capacitive plates arranged to provide a capacitive coupling with the first plurality of fixed capacitive plates. The accelerometer has a central member and an outer member fixed to the substrate. According to one embodiment, a plurality of inner support arms extend between the central member and the inertia mass and a plurality of outer support arms extend between the inertia mass and the outer member to support the mass over the cavity. According to another embodiment, one or more cut out apertures are formed in the inertia mass to compensate for a channel and signal line so as to balance the inertia mass about the center of the inertia mass.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: April 13, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Seyed R. Zarabadi, Ian D. Jay, Jack D. Johnson, John C. Christenson, Tracy A. Noll
  • Patent number: 6718825
    Abstract: A method for reduces the sticking of proof masses in micro-electromechanical systems (MEMS) devices to sense plates in the MEMS device due to acceleration forces to which the MEMS device is subjected. The method includes determining a beginning of acceleration events which would cause proof masses to contact sense plates, reducing sense bias voltages to the sense plates, determining an end of the acceleration event, and increasing sense bias voltages to their former levels.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: April 13, 2004
    Assignee: Honeywell International Inc.
    Inventors: William P. Platt, William A. Harris, Neil G. W. Hedtke
  • Patent number: 6715354
    Abstract: A flaw detection system using acoustic Doppler effect for detecting flaws in a medium wherein there is relative motion between the medium and system includes a transducer, spaced from the medium to be inspected, for introducing to and sensing from the medium an acoustic signal that propagates in the medium at a predetermined frequency; and a detector, responsive to the sensed propagating acoustic signal, for detecting in the sensed acoustic signal the Doppler shifted frequency representative of a flaw in the medium.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: April 6, 2004
    Assignee: Massachusetts Institute of Technology
    Inventor: Shi-Chang Wooh
  • Patent number: 6715351
    Abstract: A improved vehicle wheel balancer for a wheel assembly including an adjustable wheel data acquisition arm configured to transition from at least a first operating position adapted for use with vehicle wheels having a first range of inner diameters, to at least a second operating position adapted for use with vehicle wheels having a second range of inner diameters which differ, at least in-part, from the first range of inner diameters.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: April 6, 2004
    Assignee: Hunter Engineering Company
    Inventors: William B. Feero, Nicholas J. Colarelli, III, Michael D. Gerdes, Michael W. Douglas
  • Patent number: 6711951
    Abstract: An acceleration measurement system for measuring acceleration of a target object includes an accelerometer mount that includes at least one mass, at least one elastic member, and at least one damping material. A method of measuring acceleration of a target object includes selecting the at least one elastic member and the damping material provide a more accurate transmission from the target object to an accelerometer that is connected to the accelerometer mount.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: March 30, 2004
    Assignee: Kicher & Co.
    Inventors: Thomas P. Kicher, Paul T. Kicher
  • Patent number: 6711959
    Abstract: An installed or temporarily inserted air flow instrument 48 measures air flow in a pneumatic subsystem of a cleaning station in a copier or printer. The air flow instrument has a pitot tube 52 and a static pressure tube 54. The pitot tube is substantially parallel to the length of in-line adapter 50, is centered within in-line adapter 50, and terminates in impact end 74. Static pressure tube 54 is substantially transverse to the length of in-line adapter 50. Static pressure tube 54 penetrates adapter wall 64 of in-line adapter 50 and is flush with adapter inner surface 66 of in-line adapter 50. The pressure difference at the ends of the pitot and static pressure tube represents a measurement of the air flow in the body of the air flow instrument.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: March 30, 2004
    Assignee: Heidelberger Druckmaschinen AG
    Inventor: Robert S. Rejewski
  • Patent number: 6705168
    Abstract: The processing method, starting from the measurements of the vibration of a bearing block (5) or a rotor (2) of a rotating machine (3) consists particularly of: starting from spectral decompositions [Ax(fi), &PHgr;x(fi)] and [Ay(fi), &PHgr;y(fi)], calculating a spectral decomposition in elementary elliptical trajectories of the displacement of the rotor axis, defined by a series of sets of at least three data [Emax(fi), Emin(fi), E&phgr;(fi)] where: Emax(fi) is the maximum radius of the elementary ellipse at frequency fi, Emin(fi) is the minimum radius of the elementary ellipse at frequency fi, E&phgr;(fi) corresponds to the value of the orientation angle of the principal axis of the elementary ellipse, and may be positive or negative depending on the direction of movement around the ellipse. Save the series [Emax(fi), Emin(fi), E&phgr;(fi)].
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: March 16, 2004
    Assignee: Ol db Acoustics & Vibration
    Inventors: Philippe Poizat, Patrick Labeyrie
  • Patent number: 6705164
    Abstract: A yaw-rate sensor including a first and a second Coriolis element that are arranged side-by-side above a surface of a substrate. The Coriolis elements are induced to oscillate parallel to a first axis Y. Due to a Coriolis force, the Coriolis elements are deflected in a second axis X which is perpendicular to the first axis Y. The oscillations of the first and second Coriolis elements occur in phase opposition to each other on paths which, without the effect of a Coriolis force, are two straight lines parallel to each other.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: March 16, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Rainer Willig, Andreas Thomae, Burkhard Kuhlmann, Joerg Hauer, Udo-Martin Gomez, Siegbert Goetz, Christian Doering, Michael Fehrenbach, Wolfram Bauer, Udo Bischof, Reinhard Neul, Karsten Funk, Markus Lutz, Gerhard Wucher, Jochen Franz
  • Patent number: 6705167
    Abstract: An accelerometer comprises a housing including a mass-supporting frame and a mass supported on the frame by a pair of outer spring member aligned along a first axis. The mass may comprise an outer mass connected to the pair of outer spring members and an inner mass connected to the outer mass by a number of inner spring members, the inner spring members aligned along one or more axes, which form a plane which the axis of the outer spring members also may be aligned. Also provided is means for detecting rotation of the mass and translation of the inner mass.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: March 16, 2004
    Assignee: SensoNor asa
    Inventors: Terje Kvisteroey, Asgeir Nord, Ralph Berstein, Sigurd Moe, Paul Skulstad, Kai Viggo Munch, Norman Goalby
  • Patent number: 6705151
    Abstract: The present invention aims to present an angular velocity sensor having a self diagnosis function. An angular velocity sensor of the present invention includes a driving part for stably vibrating a driving part of a sensor element having a driver part and a detector part for detecting an angular velocity and detection means for detecting the angular velocity of the sensor element and obtains a self diagnosis signal for a malfunction by detecting a mechanical coupling signal obtained at the detection means.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: March 16, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiyuki Nozoe, Takeshi Uemura, Masami Tamura
  • Patent number: 6701788
    Abstract: An inertial sensor includes a plurality of sense elements disposed upon a silicon wafer. Each of the sense elements senses a different inertia range. The sense elements are electrically connected to a common signal conditioning circuit that generates an output signal for each of the sense elements. The signal conditioning circuit has an output that is electrically connected to at least one control system and provides output signals in different ranges to the control system.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: March 9, 2004
    Assignee: Kelsey-Hayes Company
    Inventor: Michael L. Babala
  • Patent number: 6701786
    Abstract: The present invention provides an apparatus and method for measuring the angular rotation of a moving body. The apparatus comprises an upper sensor layer, a lower handle layer substantially parallel to the sensor layer, at least one dither frame formed of the upper sensor layer, the frame having a dither axis disposed substantially parallel to the upper sensor layer and the lower handle layer. The apparatus further comprises a first accelerometer formed of the upper sensor layer and having a first force sensing axis perpendicular to the dither axis for producing a first output signal indicative of the acceleration of the moving body along the first force sensing axis, the first accelerometer having a proof mass and at least one flexure connecting the proof mass to the dither frame such that the proof mass can be electrically rotated perpendicular to the dither axis.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: March 9, 2004
    Assignee: L-3 Communications Corporation
    Inventor: Rand H. Hulsing, II
  • Patent number: 6698287
    Abstract: The present invention discloses methods of manufacturing mechanical resonator microgyroscopes using focused ion beam machining and the mechanical resonator gyroscopes produced therefrom. An exemplary method of tuning a mechanical resonator gyroscope, includes the steps of mounting a mechanical resonator gyroscope in a vacuum chamber with a controllable focused ion beam where the gyroscope includes exciting and sensing elements for measuring a resonant frequency of the gyroscope. The exciting and sensing elements are activated to measure the resonant frequency of the mechanical resonator gyroscope and the resonant frequency of the gyroscope is adjusted to a desired resonant frequency value by controlling the focused ion beam to remove material of the gyroscope.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: March 2, 2004
    Assignees: The Boeing Company, The Regents of the University of California
    Inventors: Randall L. Kubena, Richard Joyce, Robert Thomas M'Closkey, A. Dorian Challoner