Patents by Inventor David A. Matthews

David A. Matthews 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: 20250145876
    Abstract: Environmentally friendly refrigerant blends utilizing refrigerants including 2,3,3,3-tetrafluoropropene (HFO-1234yf), E-1,2-difluoroethylene (HFO-1132E), and 1,1-difluoroethane (HFC-152a). The blends have low GWP, low toxicity, and low flammability with low temperature glide for use in a hybrid, mild hybrid, plug-in hybrid, or full electric vehicles for thermal management (transferring heat from one part of the vehicle to the other) of the passenger compartment providing air conditioning (A/C) or heating to the passenger cabin.
    Type: Application
    Filed: February 24, 2023
    Publication date: May 8, 2025
    Applicant: THE CHEMOURS COMPANY FC, LLC
    Inventors: JASON R. JUHASZ, DAVID MATTHEW SNYDER, LUKE DAVID SIMONI, SIDDARTH SITAMRAJU
  • Publication number: 20250147888
    Abstract: An apparatus includes a CPU core and a L1 cache subsystem including a L1 main cache, a L1 victim cache, and a L1 controller. The apparatus includes a L2 cache subsystem including a L2 main cache, a shadow L1 main cache, a shadow L1 victim cache, and a L2 controller configured to receive a read request from the L1 controller as a single transaction. Read request includes a read address, a first indication of an address and a coherence state of a cache line A to be moved from the L1 main cache to the L1 victim cache to allocate space for data returned in response to the read request, and a second indication of an address and a coherence state of a cache line B to be removed from the L1 victim cache in response to the cache line A being moved to the L1 victim cache.
    Type: Application
    Filed: January 13, 2025
    Publication date: May 8, 2025
    Inventors: Abhijeet Ashok CHACHAD, David Matthew THOMPSON, Naveen BHORIA, Pete Michael HIPPLEHEUSER
  • Publication number: 20250145875
    Abstract: Environmentally friendly refrigerant blends utilizing refrigerants including 2,3,3,3-tetrafluoropropene (HFO-1234yf), 1,2-difluoroethylene, at least one hydrocarbon selected from the group consisting of propane, cyclopropane, propylene, isobutane, and n-butane, and optionally 1,1-difluoroethane (HFC-152a). The blends have low GWP, low toxicity, and low flammability with low temperature glide for use in a hybrid, mild hybrid, plug-in hybrid, or full electric vehicles for thermal management (transferring heat from one part of the vehicle to the other) of the passenger compartment providing air conditioning (A/C) or heating to the passenger cabin.
    Type: Application
    Filed: February 24, 2023
    Publication date: May 8, 2025
    Applicant: THE CHEMOURS COMPANY FC, LLC
    Inventors: JASON R. JUHASZ, DAVID MATTHEW SNYDER, LUKE DAVID SIMONI, SIDDARTH SITAMRAJU
  • Publication number: 20250123903
    Abstract: An example circuit, e.g., an integrated circuit, comprises processor cores, each of which includes multiple memory blocks; power control circuits respectively coupled to the processor cores; isolation circuits respectively coupled to the processor cores; and controller circuitry coupled to each of the processor cores, to each of the power control circuits, and to each of the isolation circuits. The controller circuitry is configured to select a subset of processor cores of the processor cores and a subset of memory blocks of the subset of processor cores for testing; and cause non-selected memory blocks of the processor cores to be at least one of power gated, clock gated, and isolated from the selected subset of memory blocks.
    Type: Application
    Filed: December 23, 2024
    Publication date: April 17, 2025
    Inventors: Devanathan VARADARAJAN, Varun SINGH, Jose Luis FLORES, Rejitha NAIR, David Matthew THOMPSON
  • Patent number: 12268366
    Abstract: Systems and methods may determine an amount of current being drawn by a light source and determine, based on the amount of current, a type of light source. Based on the type of light source, an amount of time associated with disabling the light source may be determined. A voltage may be supplied to the light source for the amount of time.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: April 8, 2025
    Assignee: Welch Allyn, Inc.
    Inventors: David Matthew Babson, Kenneth V. Coon, III, James Stuart Ledwith, Jeffrey K. Moat, David Gregory Perkins
  • Patent number: 12273702
    Abstract: A system and method of modifying a binaural signal using headtracking information. The system calculates a delay, a first filter response, and a second filter response, and applies these to the left and right components of the binaural signal according to the headtracking information. The system may also apply headtracking to parametric binaural signals. In this manner, headtracking may be applied to pre-rendered binaural audio.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: April 8, 2025
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: C. Phillip Brown, Joshua Brandon Lando, Mark F. Davis, Alan J. Seefeldt, David Matthew Cooper, Dirk Jeroen Breebaart, Rhonda Wilson
  • Patent number: 12271314
    Abstract: A method includes determining, by a level one (L1) controller, to change a size of a L1 main cache; servicing, by the L1 controller, pending read requests and pending write requests from a central processing unit (CPU) core; stalling, by the L1 controller, new read requests and new write requests from the CPU core; writing back and invalidating, by the L1 controller, the L1 main cache. The method also includes receiving, by a level two (L2) controller, an indication that the L1 main cache has been invalidated and, in response, flushing a pipeline of the L2 controller; in response to the pipeline being flushed, stalling, by the L2 controller, requests received from any master; reinitializing, by the L2 controller, a shadow L1 main cache. Reinitializing includes clearing previous contents of the shadow L1 main cache and changing the size of the shadow L1 main cache.
    Type: Grant
    Filed: November 14, 2023
    Date of Patent: April 8, 2025
    Assignee: Texas Instruments Incorporated
    Inventors: Abhijeet Ashok Chachad, Naveen Bhoria, David Matthew Thompson, Neelima Muralidharan
  • Publication number: 20250103502
    Abstract: In described examples, a processor system includes a processor core generating memory transactions, a lower level cache memory with a lower memory controller, and a higher level cache memory with a higher memory controller having a memory pipeline. The higher memory controller is connected to the lower memory controller by a bypass path that skips the memory pipeline. The higher memory controller: determines whether a memory transaction is a bypass write, which is a memory write request indicated not to result in a corresponding write being directed to the higher level cache memory; if the memory transaction is determined a bypass write, determines whether a memory transaction that prevents passing is in the memory pipeline; and if no transaction that prevents passing is determined to be in the memory pipeline, sends the memory transaction to the lower memory controller using the bypass path.
    Type: Application
    Filed: December 11, 2024
    Publication date: March 27, 2025
    Inventors: Abhijeet Ashok Chachad, Timothy Anderson, Kai Chirca, David Matthew Thompson
  • Patent number: 12258333
    Abstract: Compounds, and pharmaceutically acceptable salts thereof, useful as inhibitors of sodium channels are provided. Also provided are pharmaceutical compositions comprising the compounds or pharmaceutically acceptable salts and methods of using the compounds, pharmaceutically acceptable salts, and pharmaceutical compositions in the treatment of various disorders, including pain.
    Type: Grant
    Filed: October 20, 2023
    Date of Patent: March 25, 2025
    Assignee: VERTEX PHARMACEUTICALS INCORPORATED
    Inventors: Elizabeth Mary Beck, Steven John Durrant, Sarah Skerratt, Robert Pullin, Gorka Etxebarria Jardi, David Matthew Shaw, Nadia M. Ahmad, Christopher Wray, Anisa Nizarali Virani, Kiri North, James Dodd, Michael Edward O'Donnell, Bhairavi Galan, Ronald Marcellus Knegtel, Ewa Iwona Chudyk, Joanne Louise Pinder, Stephen Andrew Thomson, Lidio Marx Carvalho Meireles, Dean Stamos, Yvonne Schmidt, Joseph Pontillo, Sara S. Hadida Ruah, Timothy Donald Neubert, Dennis James Hurley, Jinglan Zhou
  • Publication number: 20250085177
    Abstract: Apparatus includes a sample holder with a cavity and a plurality of devices configured to hold a curvature of a curved substrate in a fixed configuration. Apparatus includes two prisms with a viewing apparatus of the sample holder configured to translate therebetween. Methods can include disposing the curved substrate in the sample holder, transmitting a first beam, translating the sample holder, and transmitting a second beam. Alternatively, apparatus include a light scattering-polarimetry sub-system configured to emit a first beam to impinge an end surface of coupling prism and detect at least a portion of the first beam impinging the first surface of the coupling prism. The apparatus includes an evanescent prism coupling spectroscopy sub-system configured to emit a second beam to impinge a first surface of the coupling system and detect at least a portion of the second beam impinging the second surface of the coupling prism.
    Type: Application
    Filed: September 5, 2024
    Publication date: March 13, 2025
    Inventors: Ryan Claude Andrews, David Matthew Berg, Pierre Michel Bouzi, William John Furnas, Jacob Immerman, Jeremiah Robert Jacobson, Katherine Anne Lindberg, Andrew Allen Lindstrand, Glenn Abram Newcomer, Evan Lewis Olson, Babak Robert Raj, Nathaniel David Wetmore
  • Patent number: 12247021
    Abstract: Compounds, and pharmaceutically acceptable salts thereof, useful as inhibitors of sodium channels are provided. Also provided are pharmaceutical compositions comprising the compounds or pharmaceutically acceptable salts and methods of using the compounds, pharmaceutically acceptable salts, and pharmaceutical compositions in the treatment of various disorders, including pain.
    Type: Grant
    Filed: November 30, 2023
    Date of Patent: March 11, 2025
    Assignee: VERTEX PHARMACEUTICALS INCORPORATED
    Inventors: Steven John Durrant, Nadia M. Ahmad, Elizabeth Mary Beck, Lidio Marx Carvalho Meireles, Ewa Iwona Chudyk, Gorka Etxebarria Jardi, Bhairavi Galan, Sara S. Hadida Ruah, Dennis James Hurley, Ronald Marcellus Knegtel, Timothy Donald Neubert, Joanne Louise Pinder, Joseph Pontillo, Robert Pullin, Yvonne Schmidt, David Matthew Shaw, Sarah Skerratt, Dean Stamos, Stephen Andrew Thomson, Anisa Nizarali Virani, Christopher Wray
  • Patent number: 12247830
    Abstract: A method and system for measuring signal loss in a fiber optic cable. The tail ends of reference and test fiber optic cables are illuminated with a diffuse light. The head end of each of the reference and test fiber optic cables are positioned in a measurement area. A core imager captures an image of the core of each head-end while it is in the measurement area. Reference and test radiant fluxes emitted from the reference and test head-ends are determined from the respective core images. The relative signal loss of the test fiber optic cable is then determined by comparing the test radiant flux to the reference radiant flux.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: March 11, 2025
    Assignee: Corning Research & Development Corporation
    Inventors: David Matthew Berg, Stefan Wolfgang Kramel, David Andrew Pastel, Michael Brian Webb
  • Patent number: 12235899
    Abstract: Provided are methods, systems, and devices for generating semantic objects and an output based on the detection or recognition of the state of an environment that includes objects. State data, based in part on sensor output, can be received from one or more sensors that detect a state of an environment including objects. Based in part on the state data, semantic objects are generated. The semantic objects can correspond to the objects and include a set of attributes. Based in part on the set of attributes of the semantic objects, one or more operating modes, associated with the semantic objects can be determined. Based in part on the one or more operating modes, object outputs associated with the semantic objects can be generated. The object outputs can include one or more visual indications or one or more audio indications.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: February 25, 2025
    Assignee: GOOGLE LLC
    Inventors: Tim Wantland, Donald A. Barnett, David Matthew Jones
  • Publication number: 20250058558
    Abstract: A printing plate pressure adjustment system for a can decorator including a printing plate cylinder assembly having a printing plate cylinder drive shaft, and a blanket wheel. The system includes an actuator, a control system structured to control operation of the actuator to adjust a pressure between the printing plate cylinder assembly and the blanket wheel, an eccentric bushing disposed around the printing plate cylinder drive shaft, wherein rotation of the eccentric bushing causes the printing plate cylinder to move toward or away from the blanket wheel, and a drive mechanism coupled between the actuator and the eccentric bushing, wherein operation of the actuator causes the drive mechanism to rotate the eccentric bushing.
    Type: Application
    Filed: November 6, 2024
    Publication date: February 20, 2025
    Applicant: Stolle Machinery Company, LLC
    Inventors: Bryon Lee Kajfosz, David Matthew Sebesta, Karl Scott Fleischer
  • Patent number: 12222975
    Abstract: A system predicts metadata attributes associated with documents using machine learning models. The document may represent an interaction between entities. The system trains machine learning models to predict scores indicating whether a token or a sequence of token of a document represents a metadata attribute. The metadata prediction is used to annotate the document and display to users. The system receives user feedback via the user interface and uses the user feedback to evaluate or retrain the model. The system generates training data by receiving a set of annotated documents and comparing the annotated documents against other documents to identify matching documents. The system determines when to execute the machine learning based metadata prediction based on steps of document workflow executed by the system.
    Type: Grant
    Filed: January 13, 2023
    Date of Patent: February 11, 2025
    Assignee: Docusign, Inc.
    Inventors: Kaushik Narayanan, David Matthew Wong, David Lange, Vinay Jethava, Qing Zheng, Mohammad Mehdi Ghanimifard, Pontus Lindstrom, Gowtham Rangarajan Raman, David DeBarr, Yan He
  • Patent number: 12225289
    Abstract: A method, system, and computer program product for determining a core-to-ferrule offset of a ferrule for a fiber optic connector. A reference ferrule is physically aligned with a core imager by positioning the reference ferrule so that edges of the reference ferrule in a plurality of profile images are aligned with fiducial markers in the images. The reference ferrule is incrementally rotated about its longitudinal center access, a core image captured at each rotational angle, and a reference core-to-ferrule offset determined based on the core images. A test ferrule is physically aligned with the core imager by positioning the test ferrule so that edges of the test ferule are aligned with the edges of the reference ferrule in a plurality of profile images. The core-to-ferrule offset of the test ferrule is then determined based on an offset between the test and reference cores in a composite core image.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: February 11, 2025
    Assignee: Corning Research & Development Corporation
    Inventors: David Matthew Berg, Sterling Michael Clarke, Stefan Wolfgang Kramel, David Andrew Pastel, Michael Brian Webb
  • Patent number: 12222805
    Abstract: A processing device receives a request to write data to a memory device. The processing device generates a codeword based on the data. The codeword comprises the data and error correction code. The processing device generates a compressed codeword by compressing the codeword. The processing device stores the compressed codeword on a page of the memory device.
    Type: Grant
    Filed: February 16, 2023
    Date of Patent: February 11, 2025
    Assignee: Micron Technology, Inc.
    Inventor: David Matthew Springberg
  • Patent number: 12217102
    Abstract: An integrated circuit comprises a set of processor cores, wherein each processor core of the set of processor cores includes BIST logic circuitry and multiple memory blocks coupled to the BIST logic circuitry. Each processor core further includes multiple power control circuitry, where each power control circuitry of the multiple power control circuitry is coupled to a respective processor core of the set of processor cores, multiple isolation circuitry, where each isolation circuitry of the multiple isolation circuitry is coupled to a respective processor core of the set of processor cores, a built-in-self repair (BISR) controller coupled to the each of the set of processor cores, each of the multiple power control circuitry, and each of the multiple isolation circuitry, and a safety controller coupled to the BISR controller, the multiple power control circuitry, and to the multiple isolation circuitry.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: February 4, 2025
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Devanathan Varadarajan, Varun Singh, Jose Luis Flores, Rejitha Nair, David Matthew Thompson
  • Patent number: D1060308
    Type: Grant
    Filed: March 7, 2023
    Date of Patent: February 4, 2025
    Assignee: Amazon Technologies, Inc.
    Inventors: Michael Edward James Paterson, Giles David Matthew McWilliam
  • Patent number: D1073649
    Type: Grant
    Filed: October 2, 2024
    Date of Patent: May 6, 2025
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Emmanuel Laffon de Mazieres, Giles David Matthew McWilliam