Patents by Inventor Jun Murakawa

Jun Murakawa 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: 11915384
    Abstract: A technique iteratively fits a rasterization distortion function to a distortion property of a display such as a head-mounted display (HMD). The technique also features reconstructing a distortion function from a rendered image with unknown distortion property.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: February 27, 2024
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Jun Murakawa, Sagnik Chowdhury
  • Publication number: 20220343458
    Abstract: A technique iteratively fits a rasterization distortion function to a distortion property of a display such as a head-mounted display (HMD). The technique also features reconstructing a distortion function from a rendered image with unknown distortion property.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 27, 2022
    Inventors: Jun Murakawa, Sagnik Chowdhury
  • Patent number: 11270506
    Abstract: In graphics processing data is received representing one or more vertices for a scene in a virtual space. A projection of the vertices onto a screen space of a display device is performed. A density of the vertices is adjusted for selected portions of the screen space, such that a lower density of vertices is present in selected portions of the screen space. Primitive assembly is performed on the vertices to generate a one or more primitives in screen space from the projection of the vertices onto the screen space. A finished frame is then generated by performing pixel processing to assign pixel values to the pixel or pixels that are part of the corresponding primitives. In some implementations, the finished frame can be stored in the memory or displayed on the display device.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: March 8, 2022
    Assignee: SONY COMPUTER ENTERTAINMENT INC.
    Inventors: Jun Murakawa, John Doolittle, Justin Beck, Brendan Rehon, Michael Thomas Kutner
  • Publication number: 20200320787
    Abstract: In graphics processing data is received representing one or more vertices for a scene in a virtual space. A projection of the vertices onto a screen space of a display device is performed. A density of the vertices is adjusted for selected portions of the screen space, such that a lower density of vertices is present in selected portions of the screen space. Primitive assembly is performed on the vertices to generate a one or more primitives in screen space from the projection of the vertices onto the screen space. A finished frame is then generated by performing pixel processing to assign pixel values to the pixel or pixels that are part of the corresponding primitives. In some implementations, the finished frame can be stored in the memory or displayed on the display device.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Inventors: Jun Murakawa, John Doolittle, Justin Beck, Brendan Rehon, Michael Thomas Kutner
  • Patent number: 10726619
    Abstract: In graphics processing data is received representing one or more vertices for a scene in a virtual space. A projection of the vertices onto a screen space of a display device is performed. A density of the vertices is adjusted for selected portions of the screen space, such that a lower density of vertices is present in selected portions of the screen space. Primitive assembly is performed on the vertices to generate a one or more primitives in screen space from the projection of the vertices onto the screen space. A finished frame is then generated by performing pixel processing to assign pixel values to the pixel or pixels that are part of the corresponding primitives. In some implementations, the finished frame can be stored in the memory or displayed on the display device.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: July 28, 2020
    Assignee: SONY INTERACTIVE ENTERTAINMENT INC.
    Inventors: Jun Murakawa, John Doolittle, Justin Beck, Brendan Rehon, Michael Kutner
  • Patent number: 10657710
    Abstract: Systems, methods, and devices are disclosed for rendering computer graphics. In various embodiments, a displacement map is created for a plurality of surfaces and a tessellation process is initiated. It is determined that the tessellation density of a first set of surfaces and a second set of surfaces should be modified based on the displacement map. Based on the displacement map, a tessellation factor scale for each surface of the first set of surfaces is increased and a tessellation factor scale for each surface of the second set of surfaces is decreased, respectively.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: May 19, 2020
    Assignee: SONY INTERACTIVE ENTERTAINMENT INC.
    Inventors: John Doolittle, Jun Murakawa, Christopher Ho
  • Patent number: 10255650
    Abstract: A system has a central processing unit (CPU) and a graphics processing unit (GPU) that includes one or more registers. The GPU can change a resource descriptor in one of the GPU's registers. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: April 9, 2019
    Assignee: SONY INTERACTIVE ENTERTAINMENT INC.
    Inventors: Richard B. Stenson, Steven Osman, Jun Murakawa, Christopher Ho
  • Publication number: 20180240272
    Abstract: Systems, methods, and devices are disclosed for rendering computer graphics. In various embodiments, a displacement map is created for a plurality of surfaces and a tessellation process is initiated. It is determined that the tessellation density of a first set of surfaces and a second set of surfaces should be modified based on the displacement map. Based on the displacement map, a tessellation factor scale for each surface of the first set of surfaces is increased and a tessellation factor scale for each surface of the second set of surfaces is decreased, respectively.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 23, 2018
    Inventors: John Doolittle, Jun Murakawa, Christopher Ho
  • Publication number: 20170124760
    Abstract: In graphics processing data is received representing one or more vertices for a scene in a virtual space. A projection of the vertices onto a screen space of a display device is performed. A density of the vertices is adjusted for selected portions of the screen space, such that a lower density of vertices is present in selected portions of the screen space. Primitive assembly is performed on the vertices to generate a one or more primitives in screen space from the projection of the vertices onto the screen space. A finished frame is then generated by performing pixel processing to assign pixel values to the pixel or pixels that are part of the corresponding primitives. In some implementations, the finished frame can be stored in the memory or displayed on the display device.
    Type: Application
    Filed: October 29, 2015
    Publication date: May 4, 2017
    Inventors: Jun Murakawa, John Doolittle, Justin Beck, Brendan Rehon, Michael Kutner
  • Patent number: 9495722
    Abstract: A method for processing graphics for a GPU program, translating instructions from a shading language into an intermediate language with a front end of a GPU compiler; translating the instructions from the intermediate language into a GPU object language with a back end of the GPU compiler; wherein the instructions in the shading language include instructions defining a layout of resources for the GPU program.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: November 15, 2016
    Assignee: SONY INTERACTIVE ENTERTAINMENT INC.
    Inventors: Richard B. Stenson, Christopher Ho, Mark E. Cerny, Steven Osman, Jun Murakawa, Dmitri Shtilman, Jason Scanlin
  • Publication number: 20140347371
    Abstract: A system has a central processing unit (CPU) and a graphics processing unit (GPU) that includes one or more registers. The GPU can change a resource descriptor in one of the GPU's registers. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 27, 2014
    Inventors: Richard B. Stenson, Osman Steven, Jun Murakawa, Christopher Ho
  • Publication number: 20140347375
    Abstract: A method for processing graphics for a GPU program, translating instructions from a shading language into an intermediate language with a front end of a GPU compiler; translating the instructions from the intermediate language into a GPU object language with a back end of the GPU compiler; wherein the instructions in the shading language include instructions defining a layout of resources for the GPU program.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 27, 2014
    Inventors: Richard B. Stenson, Christopher Ho, Mark E. Cerny, Steven Osman, Jun Murakawa, Dmitri Shtilman, Jason Scanlin
  • Patent number: 8075736
    Abstract: Headbox for a paper machine which discharges paper raw material onto a wire as a raw material jet from a slice which is supplied with the paper raw material. The headbox includes an orientation correcting arrangement for correcting a pulp fiber orientation by supplying the paper raw material as a correction flow to a single location in either a central portion of the slice or a plurality of locations other than end portions thereof. The paper raw material is one of extracted from a taper header in which paper raw material for a main flow is stored and extracted from a correction-only taper header in which paper raw material for correcting the pulp fiber orientation is stored. This abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: December 13, 2011
    Assignee: Voith Patent GmbH
    Inventors: Takeo Nakazawa, Osamu Fujimura, Junichi Ito, Jun Murakawa
  • Publication number: 20080023167
    Abstract: An object of the present invention is to provide a headbox for a paper machine in which correction of the fiber orientation of paper is possible over the entire width of the C/D direction, regardless of the slice width, and in which the fiber orientation in the direction of paper thickness can be corrected over the entire thickness of the paper.
    Type: Application
    Filed: June 28, 2005
    Publication date: January 31, 2008
    Applicant: VOITH PATENT GMBH
    Inventors: Takeo Nakazawa, Osamu Fujimura, Junichi Ito, Jun Murakawa