Patents by Inventor Remi Arnaud

Remi Arnaud 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).

  • Method and apparatus for de-indexing geometry
    Patent number: 7439983
    Abstract: A pixel shader is operated to perform a first texture lookup in an index buffer to obtain a vertex index value for a geometric primitive to be displayed. The pixel shader is also operated to perform a second texture lookup in a vertex buffer to obtain vertex data, wherein the vertex data corresponds to the previously obtained vertex index value for the geometric primitive to be displayed. The first and second texture lookups are repeated by the pixel shader such that vertex data is obtained for each vertex required to define the geometric primitive to be displayed. The pixel shader is then operated to rasterize the geometric primitive to be displayed, wherein the rasterizing is performed using the vertex data previously obtained by the pixel shader.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: October 21, 2008
    Assignee: Sony Computer Entertainment Inc.
    Inventors: Remi Arnaud, Roy Hashimoto
  • Method and apparatus for de-indexing geometry
    Publication number: 20060176310
    Abstract: A pixel shader is operated to perform a first texture lookup in an index buffer to obtain a vertex index value for a geometric primitive to be displayed. The pixel shader is also operated to perform a second texture lookup in a vertex buffer to obtain vertex data, wherein the vertex data corresponds to the previously obtained vertex index value for the geometric primitive to be displayed. The first and second texture lookups are repeated by the pixel shader such that vertex data is obtained for each vertex required to define the geometric primitive to be displayed. The pixel shader is then operated to rasterize the geometric primitive to be displayed, wherein the rasterizing is performed using the vertex data previously obtained by the pixel shader.
    Type: Application
    Filed: February 10, 2005
    Publication date: August 10, 2006
    Applicant: Sony Computer Entertainment Inc.
    Inventors: Remi Arnaud, Roy Hashimoto
  • Multi-purpose high resolution distortion correction
    Patent number: 6249289
    Abstract: A high resolution distortion correction system is provided for an arbitrary projection system. First, a field of view is subdivided into multiple viewports. The multiple subdivided viewports provide a first approximation of the distortion. Polygons that are projected onto a particular subdivided viewport are rendered in a frame buffer and stored in texture memory as an intermediate texture image. The intermediate texture images are subsequently applied to a rendered distortion mesh to generate an output image.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: June 19, 2001
    Assignee: Silicon Graphics, Inc.
    Inventors: Remi Arnaud, Javier Castellar, Michael Timothy Jones