Patents by Inventor Ayako Hirotsu

Ayako Hirotsu 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 image pickup element having a control circuit for controlling the operation period of a transfer circuit and method for controlling the same
    Patent number: 8552354
    Abstract: A transfer circuit is configured to transfer signal charges of an accumulating region to a floating diffusion region when being operated, while being configured to stop the transfer of the signal charges when not being operated, by use of a transfer gate which is turned on and off in response to a transfer control signal. The pixel control circuit controls the transfer circuit according to a light receiving level of a pixel circuit so as to extend an operation period of the pixel circuit in a case where a light receiving quantity is not lower than a predetermined quantity, contrary to a case where the light receiving quantity is lower than the predetermined quantity.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: October 8, 2013
    Inventors: Ayako Hirotsu, Fusayoshi Hirotsu
  • SOLID-STATE IMAGE PICKUP ELEMENT AND METHOD FOR CONTROLLING THE SAME
    Publication number: 20110260038
    Abstract: A transfer circuit is configured to transfer signal charges of an accumulating region to a floating diffusion region when being operated, while being configured to stop the transfer of the signal charges when not being operated, by use of a transfer gate which is turned on and off in response to a transfer control signal. The pixel control circuit controls the transfer circuit according to a light receiving level of a pixel circuit so as to extend an operation period of the pixel circuit in a case where a light receiving quantity is not lower than a predetermined quantity, contrary to a case where the light receiving quantity is lower than the predetermined quantity.
    Type: Application
    Filed: December 25, 2009
    Publication date: October 27, 2011
    Inventors: Ayako Hirotsu, Fusayoshi Hirotsu