Patents by Inventor Ameya Y. JOSHI

Ameya Y. JOSHI 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).

  • Display pixel overdrive systems and methods
    Patent number: 10460702
    Abstract: Aspects of the subject technology relate to display circuitry including pixel overdrive circuitry. The pixel overdrive circuitry includes a compression engine that compresses a previous display frame, for storage and comparison to a current display frame without compression or decompression of the current display frame. The compression engine compresses the previous frame in such a way that the maximum compression error is always known and can be used to determine whether to perform overdrive operations for the current frame without compressing and decompressing the current display frame. The compression engine selects gradient encoding or decimation encoding for the compression of the previous display frame and can perform successive decimation operations within the gradient encoding operations to help reduce the size of the compressed previous frame while maintaining the quality of the ultimate overdriven current frame.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: October 29, 2019
    Assignee: Apple Inc.
    Inventors: Nachum M. Kanovsky, Marc Albrecht, Tobias Jung, Xiaokai Li, Ameya Y. Joshi
  • DISPLAY PIXEL OVERDRIVE SYSTEMS AND METHODS
    Publication number: 20180374450
    Abstract: Aspects of the subject technology relate to display circuitry including pixel overdrive circuitry. The pixel overdrive circuitry includes a compression engine that compresses a previous display frame, for storage and comparison to a current display frame without compression or decompression of the current display frame. The compression engine compresses the previous frame in such a way that the maximum compression error is always known and can be used to determine whether to perform overdrive operations for the current frame without compressing and decompressing the current display frame. The compression engine selects gradient encoding or decimation encoding for the compression of the previous display frame and can perform successive decimation operations within the gradient encoding operations to help reduce the size of the compressed previous frame while maintaining the quality of the ultimate overdriven current frame.
    Type: Application
    Filed: August 30, 2017
    Publication date: December 27, 2018
    Inventors: Nachum M. KANOVSKY, Marc ALBRECHT, Tobias JUNG, Xiaokai LI, Ameya Y. JOSHI