Patents by Inventor Steven M. Parkes

Steven M. Parkes 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).

  • Datapath graphs with operations performed using dimensions
    Patent number: 10725787
    Abstract: An operation associated with an artifact which includes a plurality of fragments is received. A dimension is obtained and a plurality of sub-operations is generated based at least in part on the operation and the dimension where each of the plurality of sub-operations is associated with a subset of values associated with the dimension. The plurality of sub-operations is performed on the plurality of fragments, including by generating, for each of the plurality of fragments, dimensional metadata which includes a subset of values associated with the dimension for that fragment.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: July 28, 2020
    Assignee: Ascension Labs, Inc.
    Inventors: Steven M. Parkes, Hwa-Chow Hsu, Kyumin Kim, Leonardo Marchetti, Andrey Siunov
  • Datapath graph with update detection using fingerprints
    Patent number: 10489368
    Abstract: A current fingerprint that is a function of an operation node and an input storage node is generated. The current fingerprint is compared to a previously generated fingerprint associated with an output storage node and a task associated with performing the operation node on the input storage node is generated.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: November 26, 2019
    Assignee: Ascension Labs, Inc.
    Inventors: Steven M. Parkes, Sean M. Knapp, Rui Yang, Shengyang Xu
  • Video Difference key generator
    Patent number: 4800432
    Abstract: A video difference key generator has a stored reference video image. An input video image is compared with the reference video image by an absolute difference circuit which substracts corresponding pixels of the two video images, the smaller from the larger, to produce a difference video image. The difference video image may be filtered, and then is input to a transfer function circuit to produce an output which may be used as a key signal for compositing video images.
    Type: Grant
    Filed: October 24, 1986
    Date of Patent: January 24, 1989
    Assignee: The Grass Valley Group, Inc.
    Inventors: Ronnie D. Barnett, Steven M. Parkes