Patents by Inventor Che-I Lin

Che-I Lin 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).

  • Image sensor pixel circuitry with transistors to improve dynamic range
    Patent number: 7196306
    Abstract: An image sensor comprising a pixel sensor, a first transistor, a second transistor, a third transistor and a fourth transistor. The pixel sensor receives illumination to generate a photocurrent. The first transistor coupled to a voltage source and the pixel sensor, is controlled by a reset signal to activate or deactivate. A first node is coupled to the first transistor and the pixel sensor, and the voltage source provide a first potential. The second transistor coupled to a second node and the first node, receives a reference voltage. The third transistor, coupled to the voltage source, is controlled by the voltage on the second node. The fourth transistor coupled to the third transistor and the image sensor, is controlled by a selection signal to activate or deactivate.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: March 27, 2007
    Assignee: Via Technologies Inc.
    Inventors: Ya-Chin King, Cheng-Hsiao Lai, Che-I Lin
  • Image sensor and operating method thereof
    Publication number: 20050269488
    Abstract: An image sensor comprising a pixel sensor, a first transistor, a second transistor, a third transistor and a fourth transistor. The pixel sensor receives illumination to generate a photocurrent. The first transistor coupled to a voltage source and the pixel sensor, is controlled by a reset signal to activate or deactivate. A first node is coupled to the first transistor and the pixel sensor, and the voltage source provide a first potential. The second transistor coupled to a second node and the first node, receives a reference voltage. The third transistor, coupled to the voltage source, is controlled by the voltage on the second node. The fourth transistor coupled to the third transistor and the image sensor, is controlled by a selection signal to activate or deactivate.
    Type: Application
    Filed: June 3, 2005
    Publication date: December 8, 2005
    Inventors: Ya-Chin King, Cheng-Hsiao Lai, Che-I Lin