Patents by Inventor Kenichirou Anjyou

Kenichirou Anjyou 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).

  • Solid-state imaging device, imaging apparatus, and electronic apparatus with negative feedback circuit
    Patent number: 9609249
    Abstract: A solid-state imaging device includes a photodiode that generates a signal charge by photoelectric conversion according to received light, a floating diffusion that accumulates the signal charge generated by the photodiode, an amplification transistor that amplifies and outputs a power source voltage according to the signal charge accumulated in the floating diffusion, a dummy transistor having the same characteristics as the amplification transistor, and a negative feedback circuit that applies a negative feedback to the dummy transistor such that respective source currents of the amplification transistor and the dummy transistor are equal to each other. The respective source currents of the amplification transistor and the dummy transistor are controlled so as to coincide with each other by the negative feedback circuit.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: March 28, 2017
    Assignee: Sony Corporation
    Inventors: Kenichirou Anjyou, Jyunichirou Kusuda
  • SOLID-STATE IMAGING DEVICE, IMAGING APPARATUS, AND ELECTRONIC APPARATUS
    Publication number: 20150163438
    Abstract: A solid-state imaging device includes a photodiode that generates a signal charge by photoelectric conversion according to received light, a floating diffusion that accumulates the signal charge generated by the photodiode, an amplification transistor that amplifies and outputs a power source voltage according to the signal charge accumulated in the floating diffusion, a dummy transistor having the same characteristics as the amplification transistor, and a negative feedback circuit that applies a negative feedback to the dummy transistor such that respective source currents of the amplification transistor and the dummy transistor are equal to each other. The respective source currents of the amplification transistor and the dummy transistor are controlled so as to coincide with each other by the negative feedback circuit.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 11, 2015
    Inventors: Kenichirou Anjyou, Jyunichirou Kusuda