Patents by Inventor Jingwei Lai

Jingwei Lai 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: 11206368
    Abstract: A data transmission circuit of an image sensor. In one embodiment, the data transmission circuit includes a plurality of banks coupled in a series. A peripheral bank of the plurality of transmission banks is coupled to a function logic. Each bank includes a plurality of local buffers coupled to a local buffer control and a plurality of global buffers coupled to a global buffer control. The local buffers are settable to their enabled or disabled state by a bank enable command at the local buffer control. The enabled local buffers are configured to transfer local data to shift registers of their respective bank. The disabled local buffers are configured not to transfer the local data to the shift register of their respective bank.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: December 21, 2021
    Assignee: OMNIVISION TECHNOLOGIES, INC.
    Inventors: Chun-Hsiang Chang, Zejian Wang, Chao-Fang Tsai, Jingwei Lai
  • Publication number: 20210368116
    Abstract: A data transmission circuit of an image sensor. In one embodiment, the data transmission circuit includes a plurality of banks coupled in a series. A peripheral bank of the plurality of transmission banks is coupled to a function logic. Each bank includes a plurality of local buffers coupled to a local buffer control and a plurality of global buffers coupled to a global buffer control. The local buffers are settable to their enabled or disabled state by a bank enable command at the local buffer control. The enabled local buffers are configured to transfer local data to shift registers of their respective bank. The disabled local buffers are configured not to transfer the local data to the shift register of their respective bank.
    Type: Application
    Filed: May 22, 2020
    Publication date: November 25, 2021
    Inventors: Chun-Hsiang Chang, Zejian Wang, Chao-Fang Tsai, Jingwei Lai
  • Patent number: 10432879
    Abstract: A readout circuit includes a comparator coupled to receive a ramp signal an output of a dual conversion gain pixel. A single counter is coupled to the output of the comparator. The counter is coupled to write to only one of a first or a second memory circuits at a time. A first multiplexor is coupled to load either an initial value or an initial memory value from the first memory circuit into the counter. A second multiplexor is coupled to load either a low conversion gain memory value from the first memory circuit or a high conversion gain memory value from the second memory circuit into a single data transmitter, which is coupled to transmit the received memory value to a digital processor.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: October 1, 2019
    Assignee: OmniVision Technologies, Inc.
    Inventors: Chun-Hsiang Chang, Yingkan Lin, Jingwei Lai, Zhe Gao
  • Publication number: 20190222780
    Abstract: A readout circuit includes a comparator coupled to receive a ramp signal an output of a dual conversion gain pixel. A single counter is coupled to the output of the comparator. The counter is coupled to write to only one of a first or a second memory circuits at a time. A first multiplexor is coupled to load either an initial value or an initial memory value from the first memory circuit into the counter. A second multiplexor is coupled to load either a low conversion gain memory value from the first memory circuit or a high conversion gain memory value from the second memory circuit into a single data transmitter, which is coupled to transmit the received memory value to a digital processor.
    Type: Application
    Filed: January 16, 2018
    Publication date: July 18, 2019
    Inventors: Chun-Hsiang Chang, Yingkan Lin, Jingwei Lai, Zhe Gao