Patents by Inventor Robert Walmsley

Robert Walmsley 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).

  • Patent number: 12504440
    Abstract: A microelectromechanical system device is described. The microelectromechanical system device can comprise: a proof mass coupled to an anchor via a spring, wherein the proof mass moves in response to an imposition of an external load to the proof mass, and an overtravel stop comprising a first portion and a second portion.
    Type: Grant
    Filed: November 6, 2023
    Date of Patent: December 23, 2025
    Assignee: INVENSENSE, INC.
    Inventors: Matthew Julian Thompson, Robert Walmsley
  • Publication number: 20240069061
    Abstract: A microelectromechanical system device is described. The microelectromechanical system device can comprise: a proof mass coupled to an anchor via a spring, wherein the proof mass moves in response to an imposition of an external load to the proof mass, and an overtravel stop comprising a first portion and a second portion.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Inventors: Matthew Julian Thompson, Robert Walmsley
  • Patent number: 11846648
    Abstract: A microelectromechanical system device is described. The microelectromechanical system device can comprise: a proof mass coupled to an anchor via a spring, wherein the proof mass moves in response to an imposition of an external load to the proof mass, and an overtravel stop comprising a first portion and a second portion.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: December 19, 2023
    Assignee: INVENSENSE, INC.
    Inventors: Matthew Julian Thompson, Robert Walmsley
  • Publication number: 20230221345
    Abstract: A microelectromechanical system device is described. The microelectromechanical system device can comprise: a proof mass coupled to an anchor via a spring, wherein the proof mass moves in response to an imposition of an external load to the proof mass, and an overtravel stop comprising a first portion and a second portion.
    Type: Application
    Filed: January 7, 2022
    Publication date: July 13, 2023
    Inventors: Matthew Julian Thompson, Robert Walmsley
  • Patent number: 7618752
    Abstract: One or more of a contact lithography module, a pattern tool and a substrate include a strain control region to prevent deformation-related misalignment.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: November 17, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duncan R. Stewart, Robert Walmsley, Peter G. Hartwell, Wei Wu
  • Patent number: 7373265
    Abstract: The present invention includes a data storage device and a method of reading data in a data storage device. Accordingly, a first aspect of the present invention is a data storage device. The data storage device includes a probe tip mounted on a suspension mechanism, a data storage layer, at least one conducting layer wherein a capacitance is formed between the suspension mechanism and the at least one conducting layer and a sensor for sensing a change in the capacitance based on a displacement of the probe tip due to the presence of a bit.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: May 13, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Gary A. Gibson, Robert Walmsley, James W. Pearson
  • Publication number: 20080090155
    Abstract: One or more of a contact lithography module, a pattern tool and a substrate include a strain control region to prevent deformation-related misalignment.
    Type: Application
    Filed: October 12, 2006
    Publication date: April 17, 2008
    Inventors: Duncan R. Stewart, Robert Walmsley, Peter G. Hartwell, Wei Wu
  • Publication number: 20070035717
    Abstract: A contact lithography system includes a patterning tool bearing a pattern; a substrate chuck for chucking a substrate to receive the pattern from the patterning tool; where the system deflects a portion of either the patterning tool or the substrate to bring the patterning tool and a portion of the substrate into contact; and a stepper for repositioning either or both of the patterning tool and substrate to align the pattern with an additional portion of the substrate to also receive the pattern. A method of performing contact lithography comprising: deflecting a portion of either a patterning tool or a substrate to bring the patterning tool and a portion of the substrate into contact; and repositioning either or both of the patterning tool and substrate to align a pattern on the patterning tool with an additional portion of the substrate to also receive the pattern.
    Type: Application
    Filed: October 13, 2006
    Publication date: February 15, 2007
    Inventors: Wei Wu, Shih-Yuan Wang, Zhiyong Li, Robert Walmsley
  • Publication number: 20060197865
    Abstract: Provided is a focus device for a camera. The focus device moves an image sensor toward, or away from, the incoming light of an image according to commands received from a processor/controller. The focus device includes an actuator for inducing movement of the image sensor, and a position sensor for measuring the distance moved. In one embodiment, the actuator is a voice coil actuator comprising a plurality of magnets and a coil winding. In an alternate embodiment, the actuator is a piezo-bimorph actuator of a type well known in the art. Operation of the actuator is controlled by the processor/controller. Further, the resulting measurement data from the position sensor is used by one or more focusing algorithms in the camera to focus the image.
    Type: Application
    Filed: March 7, 2005
    Publication date: September 7, 2006
    Inventors: Henryk Birecki, Robert Walmsley, Manish Sharma, Stevel Naberhuis
  • Publication number: 20060185431
    Abstract: Provided is a method and system for detecting rotational movement of a camera. Three pairs of accelerometers are located in the camera, with the motion sensing axes of each of the accelerometers in each of the pairs parallel to one another. The accelerometers are relatively positioned in the camera such that the planes formed by the motion sensing axes of each of the pairs of accelerometers are substantially mutually orthogonal.
    Type: Application
    Filed: February 23, 2005
    Publication date: August 24, 2006
    Inventors: Henryk Birecki, Robert Walmsley, Peter Hartwell, Steven Naberhuis
  • Publication number: 20060006514
    Abstract: A semiconductor device comprises a plurality of integrated circuits and at least one MEMS device interconnecting the integrated circuits for signal transmission between the circuits.
    Type: Application
    Filed: July 7, 2004
    Publication date: January 12, 2006
    Inventors: Manish Sharma, Robert Walmsley
  • Publication number: 20050254292
    Abstract: The present invention provides a magnetic memory device that includes a magnetic memory cell switchable between two states by the application of a magnetic field wherein the magnetic field for such switching is dependent in part on a memory cell temperature. The device further includes at least one heater element proximate to the magnetic memory cell and series connected with the magnetic memory cell for heating of the magnetic memory cell. The device also includes a circuit for selectively applying the electrical current through the at least one heater element so as to heat the cell and facilitate cell state-switching.
    Type: Application
    Filed: May 11, 2004
    Publication date: November 17, 2005
    Inventors: Thomas Anthony, Frederick Perner, Heon Lee, Robert Walmsley
  • Publication number: 20050237795
    Abstract: A method of performing a thermally assisted write operation on a selected two conductor spin valve memory (SVM) cell having a material wherein the coercivity is decreased upon an increase in temperature. In a particular embodiment, a first write magnetic field is established by a first write current flowing from a first voltage potential to a second voltage potential as applied to the first conductor. A second write magnetic field is established by a second write current flowing from a third voltage potential to a fourth voltage potential as applied to the second conductor. The voltage potential of the first conductor is greater than the voltage potential of the second conductor. As a result, a third current, flows from the first conductor through the SVM cell to the second conductor. The SVM cell has an internal resistance such that the flowing current generates heat within the SVM cell. As the SVM cell is self heated, the coercivity of the SVM cell falls below the combined write magnetic fields.
    Type: Application
    Filed: April 26, 2004
    Publication date: October 27, 2005
    Inventors: Frederick Perner, Thomas Anthony, Robert Walmsley, Lung Tran
  • Publication number: 20050128801
    Abstract: An aspect of the present invention is an MRAM device. The MRAM device includes a plurality of magnetic memory elements, a sense line coupled to the plurality of magnetic memory elements for sensing a magnetic orientation of each of the plurality of magnetic memory elements wherein the sense line includes a first via and a second via and wherein the sense line is utilized to thermally assist in switching a magnetic orientation of at least one of the plurality of magnetic memory elements.
    Type: Application
    Filed: December 11, 2003
    Publication date: June 16, 2005
    Inventors: Janice Nickel, Manuj Bhattacharyya, Robert Walmsley
  • Publication number: 20050055170
    Abstract: The present invention includes a data storage device and a method of reading data in a data storage device. Accordingly, a first aspect of the present invention is a data storage device. The data storage device includes a probe tip mounted on a suspension mechanism, a data storage layer, at least one conducting layer wherein a capacitance is formed between the suspension mechanism and the at least one conducting layer and a sensor for sensing a change in the capacitance based on a displacement of the probe tip due to the presence of a bit.
    Type: Application
    Filed: September 10, 2003
    Publication date: March 10, 2005
    Inventors: Gary Gibson, Robert Walmsley, James Pearson