Patents by Inventor David Ainsworth

David Ainsworth 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: 11967610
    Abstract: A semiconductor device comprises a semiconductor die and an integrated capacitor formed over the semiconductor die. The integrated capacitor is configured to receive a high voltage signal. A transimpedance amplifier is formed in the semiconductor die. An avalanche photodiode is disposed over or adjacent to the semiconductor die. The integrated capacitor is coupled between the avalanche photodiode and a ground node. A resistor is coupled between a high voltage input and the avalanche photodiode. The resistor is an integrated passive device (IPD) formed over the semiconductor die. A first terminal of the integrated capacitor is coupled to a ground voltage node. A second terminal of the integrated capacitor is coupled to a voltage greater than 20 volts. The integrated capacitor comprises a plurality of interdigitated fingers in one embodiment. In another embodiment, the integrated capacitor comprises a plurality of vertically aligned plates.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: April 23, 2024
    Assignee: Semtech Corporation
    Inventor: Christopher David Ainsworth
  • Patent number: 11664491
    Abstract: An anode for an electrochemical cell comprises a lithium metal or lithium metal alloy, and a polymer coating deposited on the lithium metal or lithium metal alloy. The polymer coating is doped with lithium ions and comprises a polyisocyanurate material. The polyisocyanurate material contains ether- and/or silicone-containing further groups. The ether-containing group is a polyether, and/or wherein the silicone-containing group is a siloxane group.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: May 30, 2023
    Assignee: JOHNSON MATTHEY PLC
    Inventors: Thomas Klimmasch, Jan Weikard, Hans-Josef Laas, Jürgen Köcher, David Ainsworth, Stephen Rowlands, Justyna Katarzyna Kreis, Stephen Lawes, Sebastien Desilani
  • Publication number: 20220238635
    Abstract: A semiconductor device comprises a semiconductor die and an integrated capacitor formed over the semiconductor die. The integrated capacitor is configured to receive a high voltage signal. A transimpedance amplifier is formed in the semiconductor die. An avalanche photodiode is disposed over or adjacent to the semiconductor die. The integrated capacitor is coupled between the avalanche photodiode and a ground node. A resistor is coupled between a high voltage input and the avalanche photodiode. The resistor is an integrated passive device (IPD) formed over the semiconductor die. A first terminal of the integrated capacitor is coupled to a ground voltage node. A second terminal of the integrated capacitor is coupled to a voltage greater than 20 volts. The integrated capacitor comprises a plurality of interdigitated fingers in one embodiment. In another embodiment, the integrated capacitor comprises a plurality of vertically aligned plates.
    Type: Application
    Filed: April 13, 2022
    Publication date: July 28, 2022
    Applicant: Semtech Corporation
    Inventor: Christopher David Ainsworth
  • Patent number: 11335768
    Abstract: A semiconductor device comprises a semiconductor die and an integrated capacitor formed over the semiconductor die. The integrated capacitor is configured to receive a high voltage signal. A transimpedance amplifier is formed in the semiconductor die. An avalanche photodiode is disposed over or adjacent to the semiconductor die. The integrated capacitor is coupled between the avalanche photodiode and a ground node. A resistor is coupled between a high voltage input and the avalanche photodiode. The resistor is an integrated passive device (IPD) formed over the semiconductor die. A first terminal of the integrated capacitor is coupled to a ground voltage node. A second terminal of the integrated capacitor is coupled to a voltage greater than 20 volts. The integrated capacitor comprises a plurality of interdigitated fingers in one embodiment. In another embodiment, the integrated capacitor comprises a plurality of vertically aligned plates.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: May 17, 2022
    Assignee: Semtech Corporation
    Inventor: Christopher David Ainsworth
  • Patent number: 10608589
    Abstract: A loss of signal circuit has a multiplexer and a photodiode coupled to a first input of the multiplexer. A reference signal generator is coupled to a second input of the multiplexer. An amplifier is coupled to an output of the multiplexer. A demultiplexer includes an input of the demultiplexer coupled to an output of the amplifier. A first capacitor is coupled to a first output of the demultiplexer. A second capacitor is coupled to a second output of the demultiplexer. A comparator has a first input coupled to the first output of the demultiplexer and a second input of the comparator is coupled to the second output of the demultiplexer.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: March 31, 2020
    Assignee: Semtech Corporation
    Inventor: Christopher David Ainsworth
  • Publication number: 20200067455
    Abstract: A loss of signal circuit has a multiplexer and a photodiode coupled to a first input of the multiplexer. A reference signal generator is coupled to a second input of the multiplexer. An amplifier is coupled to an output of the multiplexer. A demultiplexer includes an input of the demultiplexer coupled to an output of the amplifier. A first capacitor is coupled to a first output of the demultiplexer. A second capacitor is coupled to a second output of the demultiplexer. A comparator has a first input coupled to the first output of the demultiplexer and a second input of the comparator is coupled to the second output of the demultiplexer.
    Type: Application
    Filed: August 23, 2018
    Publication date: February 27, 2020
    Applicant: Semtech Corporation
    Inventor: Christopher David Ainsworth
  • Publication number: 20190319086
    Abstract: A semiconductor device comprises a semiconductor die and an integrated capacitor formed over the semiconductor die. The integrated capacitor is configured to receive a high voltage signal. A transimpedance amplifier is formed in the semiconductor die. An avalanche photodiode is disposed over or adjacent to the semiconductor die. The integrated capacitor is coupled between the avalanche photodiode and a ground node. A resistor is coupled between a high voltage input and the avalanche photodiode. The resistor is an integrated passive device (IPD) formed over the semiconductor die. A first terminal of the integrated capacitor is coupled to a ground voltage node. A second terminal of the integrated capacitor is coupled to a voltage greater than 20 volts. The integrated capacitor comprises a plurality of interdigitated fingers in one embodiment. In another embodiment, the integrated capacitor comprises a plurality of vertically aligned plates.
    Type: Application
    Filed: April 5, 2019
    Publication date: October 17, 2019
    Applicant: Semtech Corporation
    Inventor: Christopher David Ainsworth
  • Patent number: 10372941
    Abstract: A method of selecting data, the method comprising, receiving data indicating a first requirement and identifying first records stored in a first database. The first records relate to first data subjects and the identification is based upon the first requirement. The first data subjects cannot be identified from the records of the first database. Second records are identified, the second records being stored in a second database and relating to the first data subjects. The first data subjects can be identified from the identified records of the second database. Each of the second records corresponds to a respective one of the first records, and the identification of the second records is based upon the first requirement.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: August 6, 2019
    Assignees: The University of Manchester, Salford Royal NHS Foundation Trust
    Inventors: John Philip New, John Martin Gibson, Iain Edward Buchan, John David Ainsworth
  • Publication number: 20190229326
    Abstract: The present invention relates to an anode for an electrochemical cell, said anode comprising a lithium metal or lithium metal alloy, and a polymer coating deposited on the lithium metal or lithium metal alloy, wherein the polymer coating is doped with lithium ions and comprises a polyisocyanurate material.
    Type: Application
    Filed: September 5, 2017
    Publication date: July 25, 2019
    Inventors: Thomas KLIMMASCH, Jan WEIKARD, Hans-Josef LAAS, Jürgen KÖCHER, David AINSWORTH, Stephen ROWLANDS, Justyna Katarzyna KREIS, Stephen LAWES, Sebastien DESILANI
  • Patent number: 10210747
    Abstract: A fire alarm testing device including an electrical-switch assembly, and internal circuitry. The electrical-switch assembly includes a face-plate with the face-plate including two screw-holes, a control knob, two voltage/resistor measuring points, a plurality of electrical contacts, and two mounting screws. The internal circuitry is mechanically and electrically coupleable to the face-plate, and electrically communicable with a fire alarm system. The control knob also includes four rotatable positions including normal, open, ground, and short such that the fire alarm system is testable by rotating the knob. The electrical-switch assembly is rated for 0-40 volts direct current and is rated up to 350 milliamps and is rated up to 3.5 continuous current-amps. Preferably, electrical-switch assembly is water resistant sealed from dust and debris. Protective caps or plugs are installed where required to prevent foreign objects into the device.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: February 19, 2019
    Inventors: Stephen David Ainsworth, Mark Douglas Ainsworth
  • Patent number: 10038223
    Abstract: A method for charging a lithium-sulphur cell, said method comprising: monitoring the voltage, V, of a cell during charge as a function of time, t, or capacity, Q, determining, in a voltage region in which the cell transitions between the first stage and second stage of charge, the reference capacity, Qref, of the cell at which dV/dt or dV/dQ is at a maximum, terminating charge when the capacity of the cell reaches a.Qref, where a is 1.1 to 1.4.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: July 31, 2018
    Assignee: Oxis Energy Limited
    Inventors: Vladimir Kolosnitsyn, David Ainsworth, Lukasz Kabacik
  • Publication number: 20170352909
    Abstract: A cathode for a lithium-sulphur battery, said cathode comprising a particulate mixture deposited on a current collector, said particulate mixture comprising an admixture of (i) composite particles formed from a composite comprising electroactive sulphur material melt-bonded to electroconductive carbon material, and (ii) conductive carbon filler particles, wherein conductive carbon filler particles form 1 to 15 weight % of the total weight of the composite particles and conductive carbon filler particles.
    Type: Application
    Filed: December 21, 2015
    Publication date: December 7, 2017
    Inventors: David AINSWORTH, Stephen E. ROWLANDS, Justyna Katarzyna KREIS, Lisset Amparo URRUTIA MUNOZ
  • Publication number: 20170032145
    Abstract: A method of selecting data, the method comprising, receiving data indicating a first requirement and identifying first records stored in a first database. The first records relate to first data subjects and the identification is based upon the first requirement. The first data subjects cannot be identified from the records of the first database. Second records are identified, the second records being stored in a second database and relating to the first data subjects. The first data subjects can be identified from the identified records of the second database. Each of the second records corresponds to a respective one of the first records, and the identification of the second records is based upon the first requirement.
    Type: Application
    Filed: September 23, 2016
    Publication date: February 2, 2017
    Applicants: The University of Manchester, Salford Royal NHS Foundation Trust
    Inventors: John Philip New, John Martin Gibson, Iain Edward Buchan, John David Ainsworth
  • Patent number: 9471637
    Abstract: A method of selecting data, the method comprising, receiving data indicating a first requirement and identifying first records stored in a first database. The first records relate to first data subjects and the identification is based upon the first requirement. The first data subjects cannot be identified from the records of the first database. Second records are identified, the second records being stored in a second database and relating to the first data subjects. The first data subjects can be identified from the identified records of the second database. Each of the second records corresponds to a respective one of the first records, and the identification of the second records is based upon the first requirement.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: October 18, 2016
    Assignees: THE UNIVERSITY OF MANCHESTER, SALFORD ROYAL NHS FOUNDATION TRUST
    Inventors: John Philip New, John Martin Gibson, Iain Edward Buchan, John David Ainsworth
  • Publication number: 20160006082
    Abstract: A method for charging a lithium-sulphur cell, said method comprising: monitoring the voltage, V, of a cell during charge as a function of time, t, or capacity, Q, determining, in a voltage region in which the cell transitions between the first stage and second stage of charge, the reference capacity, Qref, of the cell at which dV/dt or dV/dQ is at a maximum, terminating charge when the capacity of the cell reaches a.Qref, where a is 1.1 to 1.4.
    Type: Application
    Filed: March 21, 2014
    Publication date: January 7, 2016
    Inventors: Vladimir Kolosnitsyn, David Ainsworth, Lukasz Kabacik
  • Publication number: 20120191749
    Abstract: A method of selecting data, the method comprising, receiving data indicating a first requirement and identifying first records stored in a first database. The first records relate to first data subjects and the identification is based upon the first requirement. The first data subjects cannot be identified from the records of the first database. Second records are identified, the second records being stored in a second database and relating to the first data subjects. The first data subjects can be identified from the identified records of the second database. Each of the second records corresponds to a respective one of the first records, and the identification of the second records is based upon the first requirement.
    Type: Application
    Filed: June 8, 2010
    Publication date: July 26, 2012
    Inventors: John Philip New, John Martin Gibson, Iain Edward Buchan, John David Ainsworth
  • Patent number: 7461648
    Abstract: Apparatus for forming a multiplicity of thin wafers from at least two similar blocks, the apparatus comprising a supply reel (1) to supply wire, an upper pair (3a, 3b) and a lower pair (3c, 3d) of parallel spaced roller guides and a collection reel (4); a wire from the supply reel passes around successive grooves along the roller guides from near the supply reel to near the collection reel, so to form a four sided continuous web of wires along the length of the roller guides. Part way along the roller guides, the wire is diverted around at least two pulley wheels(5a, 5b) removing the wire from the web after it has passed over a roller guide at a predetermined point, and reintroducing the wire into the web via a subsequent roller guide at a point laterally displaced from the point at which it left the web, so that there is a gap in the web of wire which divides the web into two separate sections, and no cutting action can occur in that gap.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: December 9, 2008
    Assignee: Rec Scanwafer AS
    Inventor: David Ainsworth Hukin
  • Publication number: 20040237535
    Abstract: A micro turbine (10) has a recuperator (20). During startup, an alternator (26) acts as a motor to turn the turbine rotor (32) and compressor rotor (34) of gas turbine (40). The speed of the gas turbine (40) and a fuel control valve (42) are controlled in order to prevent the rate of change of temperature at a gas turbine exhaust sensor (74) and/or a recuperator sensor (80) from exceeding a predetermined value in order to reduce thermal shock on the recuperator during startup. Controlled shutdown sequences are also provided.
    Type: Application
    Filed: July 9, 2004
    Publication date: December 2, 2004
    Inventor: David Ainsworth
  • Patent number: 4100941
    Abstract: A rapier for use with a rapier loom has a drive member which is spaced laterally from the rapier but extends parallel to the rapier, the rapier and drive member being connected together by the butt end of the rapier, so that in use the drive member can pass underneath the shed and need not enter the shed with the rapier.
    Type: Grant
    Filed: June 4, 1976
    Date of Patent: July 18, 1978
    Assignee: Northrop Weaving Machinery Limited
    Inventors: David Ainsworth, Allan Beckett, Cyril Millward Atkinson