Patents by Inventor Kouichi Toyomura

Kouichi Toyomura 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).

  • Focusing apparatus
    Patent number: 7593054
    Abstract: A focusing apparatus including a focus signal detection circuit that generates a focus signal indicating the degree of focusing, an in-focus direction decision circuit that generates an in-focus direction signal indicating whether a focusing lens moved for focusing is on a far side or near side viewed from the in-focus position using the generated focus signal at predetermined time intervals, in-focus direction memory for storing the in-focus direction signal generated at predetermined time intervals, and a lens control amount calculation circuit and an in-focus vicinity decision circuit that controls the movement of the focusing lens based on a stored immediately preceding predetermined number of in-focus direction signals according to a predetermined rule.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: September 22, 2009
    Assignee: Panasonic Corporation
    Inventor: Kouichi Toyomura
  • Focusing device
    Publication number: 20040257461
    Abstract: A focusing apparatus including a focus signal detection circuit that generates a focus signal indicating the degree of focusing, an in-focus direction decision circuit that generates an in-focus direction signal indicating whether a focusing lens moved for focusing is on a far side or near side viewed from the in-focus position using the generated focus signal at predetermined time intervals, in-focus direction memory for storing the in-focus direction signal generated at predetermined time intervals, and a lens control amount calculation circuit and an in-focus vicinity decision circuit that controls the movement of the focusing lens based on a stored immediately preceding predetermined number of in-focus direction signals according to a predetermined rule.
    Type: Application
    Filed: August 11, 2004
    Publication date: December 23, 2004
    Inventor: Kouichi Toyomura