Patents by Inventor Luke Stanislaw Wallis

Luke Stanislaw Wallis 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).

  • Color management for limited gamut devices
    Patent number: 7609413
    Abstract: Methods and apparatuses for performing color manipulation using virtual gamuts. In one aspect of the invention, a method to perform color manipulation on a digital processing system includes: performing color manipulation using a virtual gamut of a device if a real gamut of the device is poor in quality. When the real gamut of the device is wide, color manipulations are performed using the real gamut of the device. In one example according to this aspect, whether or not the real gamut of the device is poor in quality is determined by comparing an area of the real gamut with a threshold gamut area in a chromaticity diagram. A virtual profile of the device specifies the virtual gamut of the device.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: October 27, 2009
    Assignee: Apple Inc.
    Inventors: Gabriel Marcu, Steve Swen, Luke Stanislaw Wallis
  • Color management for limited gamut devices
    Patent number: 7457003
    Abstract: Methods and apparatuses for performing color manipulation using virtual gamuts. In one aspect of the invention, a method to perform color manipulation on a digital processing system includes: performing color manipulation using a virtual gamut of a device if a real gamut of the device is poor quality. When the real gamut of the device is wide, color manipulations are performed using the real gamut of the device. In one example according the this aspect, whether or not the real gamut of the device is poor in quality is determined by comparing an area of the real gamut with a threshold gamut area in a chromaticity diagram. A virtual profile of the device specifies the virtual gamut of the device.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: November 25, 2008
    Assignee: Apple Inc.
    Inventors: Gabriel Marcu, Steve Swen, Luke Stanislaw Wallis