Patents by Inventor Lisa C. Grenier

Lisa C. Grenier 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: 6985153
    Abstract: A graphics system comprising a scheduling network, a sample buffer and a plurality of filtering units. The sample buffer is configured to store sample generated by a rendering engine. The plurality of filtering units are coupled in a linear series. Each filtering unit of the linear series is configured to send a request for a scanline of sample bins to a first filtering unit of the linear series. The first filtering unit is configured to service the scanline requests by sending burst requests to a scheduling network and coordinating the flow of samples forming the bursts from the sample buffer to the filtering units.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: January 10, 2006
    Assignee: Sun Microsystems, Inc.
    Inventors: Elisa Rodrigues, Lisa C. Grenier, Nimita J. Taneja
  • Patent number: 6925520
    Abstract: A crossbar switch is disclosed. The crossbar switch comprises a plurality of input sorting units and a plurality of merge and interleave units. Each input sorting unit is capable of receiving from a respective device an access request to any one of a plurality of physical memory devices. Each merge and interleave unit is capable of arbitrating among competing access requests received from any of the input sorting units, selecting one of the competing access requests and forwarding the selected request for implementation on a respective memory device. Also disclosed is method implemented by the crossbar switch.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: August 2, 2005
    Assignee: Sun Microsystems, Inc.
    Inventors: James H. Ma, Lisa C. Grenier
  • Publication number: 20040225787
    Abstract: A crossbar switch is disclosed. The crossbar switch comprises a plurality of input sorting units and a plurality of merge and interleave units. Each input sorting unit is capable of receiving from a respective device an access request to any one of a plurality of physical memory devices. Each merge and interleave unit is capable of arbitrating among competing access requests received from any of the input sorting units, selecting one of the competing access requests and forwarding the selected request for implementation on a respective memory device. Also disclosed is method implemented by the crossbar switch.
    Type: Application
    Filed: May 31, 2001
    Publication date: November 11, 2004
    Inventors: James H. Ma, Lisa C. Grenier
  • Publication number: 20040008203
    Abstract: A graphics system comprising a scheduling network, a sample buffer and a plurality of filtering units. The sample buffer is configured to store sample generated by a rendering engine. The plurality of filtering units are coupled in a linear series. Each filtering unit of the linear series is configured to send a request for a scanline of sample bins to a first filtering unit of the linear series. The first filtering unit is configured to service the scanline requests by sending burst requests to a scheduling network and coordinating the flow of samples forming the bursts from the sample buffer to the filtering units.
    Type: Application
    Filed: July 15, 2002
    Publication date: January 15, 2004
    Inventors: Elisa Rodrigues, Lisa C. Grenier, Nimita J. Taneja
  • Patent number: 6625700
    Abstract: A technique for arbitrating and selecting one access request to a shared memory from among multiple contenders is disclosed. In a first aspect, the invention includes a method for accessing a shared memory. The method includes receiving a plurality of access requests; presenting a plurality of characteristics for each access request; ascertaining a plurality of operational characteristics; and selecting one of the access requests for processing upon consideration of the access request characteristics and the operational characteristics. In a second aspect, the invention includes an arbitration and select logic (“ASL”) unit. The ASL unit comprises a plurality of input sorting units, each input sorting unit capable of receiving a respective access request and a merge and interleave unit (“MIU”).
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: September 23, 2003
    Assignee: Sun Microsystems, Inc.
    Inventors: James H. Ma, Lisa C. Grenier
  • Publication number: 20020188811
    Abstract: A technique for arbitrating and selecting one access request to a shared memory from among multiple contenders is disclosed. In a first aspect, the invention includes a method for accessing a shared memory. The method includes receiving a plurality of access requests; presenting a plurality of characteristics for each access request; ascertaining a plurality of operational characteristics; and selecting one of the access requests for processing upon consideration of the access request characteristics and the operational characteristics. In a second aspect, the invention includes an arbitration and select logic (“ASL”) unit. The ASL unit comprises a plurality of input sorting units, each input sorting unit capable of receiving a respective access request and a merge and interleave unit (“MIU”).
    Type: Application
    Filed: May 31, 2001
    Publication date: December 12, 2002
    Inventors: James H. Ma, Lisa C. Grenier