Patents by Inventor Pritiraj Mohanty

Pritiraj Mohanty has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20100026136
    Abstract: 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.
    Type: Application
    Filed: July 29, 2008
    Publication date: February 4, 2010
    Applicant: Sand9, Inc
    Inventors: Alexei Gaidarzhy, Pritiraj Mohanty
  • Publication number: 20100007443
    Abstract: 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.
    Type: Application
    Filed: September 20, 2007
    Publication date: January 14, 2010
    Applicant: Trustees of Boston University
    Inventors: Pritiraj Mohanty, Robert L. Badzey, Alexei Gaidarzhy
  • Publication number: 20090294638
    Abstract: 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.
    Type: Application
    Filed: January 4, 2006
    Publication date: December 3, 2009
    Applicant: Trustees of Boston University
    Inventors: Pritiraj Mohanty, Alexei Gaidarzhy, Guiti Zolfagharkhani, Robert Badzey
  • Publication number: 20090267700
    Abstract: 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.
    Type: Application
    Filed: April 29, 2008
    Publication date: October 29, 2009
    Applicant: Sand9
    Inventors: Pritiraj Mohanty, Klaus J. Schoepf, Alexei Gaidarzhy, Guiti Zolfagharkhani, David M. Chen, Matthew J. Crowley
  • Publication number: 20090267699
    Abstract: 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.
    Type: Application
    Filed: April 29, 2008
    Publication date: October 29, 2009
    Applicant: SAND9
    Inventors: PRITIRAJ MOHANTY, KLAUS J. SCHOEPF, ALEXEI GAIDARZHY, GUITI ZOLFAGHARKHANI, DAVID M. CHEN, MATTHEW J. CROWLEY
  • Publication number: 20090243747
    Abstract: 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.
    Type: Application
    Filed: June 19, 2008
    Publication date: October 1, 2009
    Applicant: Sand9, Inc.
    Inventors: Alexei Gaidarzhy, Klaus Juergen Schoepf, Pritiraj Mohanty
  • Patent number: 7352608
    Abstract: A memory device includes a mechanical element that exhibits distinct bistable states under amplitude modulation. The states are dynamically bistable or multi-stable with the application of a drive signal of a given frequency. The natural resonance of the element in conjunction with a hysteretic effect produces distinct states over a specific frequency range. Devices with multiple elements that respond to different frequency ranges provided on a common contact are formed with improved density. The devices may be excited and read with magnetomotive, capacitive, piezoelectric and/or optical methods. The devices may be planar oriented or out of plane oriented to permit three dimensional memory structures. DC biases may be used to shift frequency responses to permit an alternate method for differentiating states of the element.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: April 1, 2008
    Assignee: Trustees of Boston University
    Inventors: Pritiraj Mohanty, Robert L. Badzey, Alexei Gaidarzhy, Guiti Zolfagharkhani