Patents by Inventor Tsuyoshi Asaeda

Tsuyoshi Asaeda 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).

  • Method and system for detecting sharpness of an object image
    Patent number: 4133606
    Abstract: The present invention relates to a method and a system for detecting the sharpness of the object image by detecting the amount of the component of a certain specified frequency, whereby the object image formed by means of an image forming optical system is detected by an image sensitive element consisting of a number of fine photo sensitive elements arranged respectively integrated on one plane, while the outputs of the above mentioned photo sensitive elements are delivered out one after another in accordance with the arrangement order of the above mentioned elements by means of a signal time series means so as to carry out an electrical scanning of the above mentioned object image in such a manner that the then obtained scanning outputs of the object image are successively converted by means of an A - D (analogue-digital) converting means into digital signals which are put in a small computer in which an estimation function for estimating the amount of the component of a certain specified frequency in the sp
    Type: Grant
    Filed: November 11, 1975
    Date of Patent: January 9, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuya Hosoe, Tsuyoshi Asaeda, Hideo Yokota, Tamotsu Shingu
  • Range finder system
    Patent number: 4123650
    Abstract: A range finder system to detect distance to an object by irradiating radiation toward an object, a distance to which is to be detected based on the principle of a base line range finder and receiving radiation being reflected by said object. It is particularly characterized by that a distance to an object is detected by irradiating a photoelectric conversion means with radiation and then comparing the signal outputted by said photoelectric conversion means with a prescribed reference signal.
    Type: Grant
    Filed: December 28, 1976
    Date of Patent: October 31, 1978
    Inventors: Kazuya Hosoe, Seiichi Matsumoto, Hideo Yokota, Tsuyoshi Asaeda, Tadahide Fukushima, Tamotsu Shingu, Shigeru Hashimoto, Tomonori Iwashita