Patents by Inventor Puyan Lotfi

Puyan Lotfi 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: 10310830
    Abstract: Systems, methods, and computer readable media to improve the development of image processing intensive programs are described. In general, techniques are disclosed to non-intrusively monitor the run-time performance of shader programs on a graphics processing unit (GPU)—that is, to profile shader program execution. More particularly, the shader profiling comprises of sampling data during the execution of a compiled code on GPU. The execution duration of the sequences of instructions within the code is determined. Subsequently, based relative latency of the instructions within the sequence, the duration time for each binary instruction is determined. The binary instructions are then mapped to source code in order to obtain the amount of time each source code instruction in a shader take to execute per draw call.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: June 4, 2019
    Assignee: Apple Inc.
    Inventors: Syed Irfan Zaidi, Sun Tjen Fam, Puyan Lotfi, Venkat R. Indukuru, Jun Pan, Andrew M. Sowerby, Jean-Luc Duprat
  • Publication number: 20180349119
    Abstract: Systems, methods, and computer readable media to improve the development of image processing intensive programs are described. In general, techniques are disclosed to non-intrusively monitor the run-time performance of shader programs on a graphics processing unit (GPU)—that is, to profile shader program execution. More particularly, the shader profiling comprises of sampling data during the execution of a compiled code on GPU. The execution duration of the sequences of instructions within the code is determined. Subsequently, based relative latency of the instructions within the sequence, the duration time for each binary instruction is determined. The binary instructions are then mapped to source code in order to obtain the amount of time each source code instruction in a shader take to execute per draw call.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 6, 2018
    Inventors: Syed Irfan Zaidi, Sun Tjen Fam, Puyan Lotfi, Venkat R. Indukuru, Jun Pan, Andrew M. Sowerby, Jean-Luc Duprat