Patents by Inventor Keith Winstein

Keith Winstein 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: 12113989
    Abstract: Techniques for lossless compression of a digital image using prior image context.
    Type: Grant
    Filed: July 5, 2023
    Date of Patent: October 8, 2024
    Assignee: Dropbox, Inc.
    Inventors: Daniel Horn, Ken Elkabany, Keith Winstein
  • Publication number: 20230345014
    Abstract: Techniques for lossless compression of a digital image using prior image context.
    Type: Application
    Filed: July 5, 2023
    Publication date: October 26, 2023
    Inventors: Daniel Horn, Ken Elkabany, Keith Winstein
  • Patent number: 11716476
    Abstract: Techniques for lossless compression of a digital image using prior image context.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: August 1, 2023
    Assignee: Dropbox, Inc.
    Inventors: Daniel Horn, Ken Elkabany, Keith Winstein
  • Publication number: 20220279193
    Abstract: Techniques for lossless compression of a digital image using prior image context.
    Type: Application
    Filed: May 18, 2022
    Publication date: September 1, 2022
    Inventors: Daniel Horn, Ken Elkabany, Keith Winstein
  • Patent number: 11343514
    Abstract: Techniques for lossless compression of a digital image using prior image context.
    Type: Grant
    Filed: June 27, 2020
    Date of Patent: May 24, 2022
    Assignee: Dropbox, Inc.
    Inventors: Daniel Horn, Ken Elkabany, Keith Winstein
  • Publication number: 20200382797
    Abstract: Techniques for lossless compression of a digital image using prior image context.
    Type: Application
    Filed: June 27, 2020
    Publication date: December 3, 2020
    Inventors: Daniel Horn, Ken Elkabany, Keith Winstein
  • Patent number: 10701374
    Abstract: Techniques for image recompression. In one implementation, the techniques are implemented to recompress a baseline joint photographic experts group (JPEG) image with compression savings. The techniques replace the Huffman coding of baseline JPEG with an arithmetic coding that uses a sophisticated adaptive probability model. The arithmetic coding techniques avoid global operations such as global sorting that would prevent distributed and multithreaded decompression operations when recovering the original JPEG image from the recompressed image. At the same time, the techniques realize substantial compression savings relative to baseline JPEG, on average 23% compressing savings in some implementations.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: June 30, 2020
    Assignee: Dropbox, Inc.
    Inventors: Daniel Horn, Ken Elkabany, Keith Winstein
  • Publication number: 20190098321
    Abstract: Techniques for image recompression. In one implementation, the techniques are implemented to recompress a baseline joint photographic experts group (JPEG) image with compression savings. The techniques replace the Huffman coding of baseline JPEG with an arithmetic coding that uses a sophisticated adaptive probability model. The arithmetic coding techniques avoid global operations such as global sorting that would prevent distributed and multithreaded decompression operations when recovering the original JPEG image from the recompressed image. At the same time, the techniques realize substantial compression savings relative to baseline JPEG, on average 23% compressing savings in some implementations.
    Type: Application
    Filed: November 29, 2018
    Publication date: March 28, 2019
    Inventors: Daniel Horn, Ken Elkabany, Keith Winstein
  • Patent number: 10171820
    Abstract: Techniques for image recompression. In one implementation, the techniques are implemented to recompress a baseline joint photographic experts group (JPEG) image with compression savings. The techniques replace the Huffman coding of baseline JPEG with an arithmetic coding that uses a sophisticated adaptive probability model. The arithmetic coding techniques avoid global operations such as global sorting that would prevent distributed and multithreaded decompression operations when recovering the original JPEG image from the recompressed image. At the same time, the techniques realize substantial compression savings relative to baseline JPEG, on average 23% compressing savings in some implementations.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: January 1, 2019
    Assignee: Dropbox, Inc.
    Inventors: Daniel Horn, Ken Elkabany, Keith Winstein
  • Publication number: 20180146199
    Abstract: Techniques for image recompression. In one implementation, the techniques are implemented to recompress a baseline joint photographic experts group (JPEG) image with compression savings. The techniques replace the Huffman coding of baseline JPEG with an arithmetic coding that uses a sophisticated adaptive probability model. The arithmetic coding techniques avoid global operations such as global sorting that would prevent distributed and multithreaded decompression operations when recovering the original JPEG image from the recompressed image. At the same time, the techniques realize substantial compression savings relative to baseline JPEG, on average 23% compressing savings in some implementations.
    Type: Application
    Filed: November 27, 2017
    Publication date: May 24, 2018
    Inventors: Daniel Horn, Ken Elkabany, Keith Winstein
  • Patent number: 9832475
    Abstract: Techniques for image recompression. In one implementation, the techniques are implemented to recompress a baseline joint photographic experts group (JPEG) image with compression savings. The techniques replace the Huffman coding of baseline JPEG with an arithmetic coding that uses a sophisticated adaptive probability model. The arithmetic coding techniques avoid global operations such as global sorting that would prevent distributed and multithreaded decompression operations when recovering the original JPEG image from the recompressed image. At the same time, the techniques realize substantial compression savings relative to baseline JPEG, on average 23% compressing savings in some implementations.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: November 28, 2017
    Assignee: Dropbox, Inc.
    Inventors: Daniel Horn, Ken Elkabany, Keith Winstein
  • Patent number: 9712830
    Abstract: Techniques for image recompression. In one implementation, the techniques are implemented to recompress a baseline joint photographic experts group (JPEG) image with compression savings. The techniques replace the Huffman coding of baseline JPEG with an arithmetic coding that uses a sophisticated adaptive probability model. The arithmetic coding techniques avoid global operations such as global sorting that would prevent distributed and multithreaded decompression operations when recovering the original JPEG image from the recompressed image. At the same time, the techniques realize substantial compression savings relative to baseline JPEG, on average 23% compressing savings in some implementations.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: July 18, 2017
    Assignee: Dropbox, Inc.
    Inventors: Daniel Horn, Ken Elkabany, Keith Winstein
  • Publication number: 20040086416
    Abstract: Platinum, silver and gold solder compositions for repairing, assembling, or sizing jewelry. Platinum compositions having about 90% to about 95% by weight platinum. Silver compositions having at least 92.5% by weight silver. Gold solder compositions having about 25% to about 91.6% gold. The platinum and silver solder compositions further consisting of about 8.3% to about 75% by weight of an alloy consisting essentially of gallium, indium and copper in respective ratios of 6:3:1. The gold solder compositions further consisting of about 2% to about 14% by weight of an alloy consisting essentially of gallium, indium, and copper in respective ratios of 6:3:1. The melting temperature ranges of the respective solder compositions are from about 1300° C. to about 1500° C. for platinum, from about 1000° F to about 1400° F for silver, and from about 1100° F to about 1550° F.
    Type: Application
    Filed: June 20, 2003
    Publication date: May 6, 2004
    Inventor: Keith Winstein