Patents by Inventor Kyeong-su Yu

Kyeong-su Yu 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).

  • Patent number: 5434621
    Abstract: An object tracking apparatus for an automatic zoom lens control in a video camera includes a memory for storing data for zoom track lines showing the relationship between the distance variation of a zoom lens and the distance variation of a focus lens while the distance of an object is kept constant, a zoom encoder for producing a zoom position signal showing the zoom lens position, a microcomputer for detecting the variation amount of the zooming position, and a zoom motor for variably controlling the zoom lens position corresponding to the detected zoom speed. A corresponding method for automatic object tracking using a zoom lens is also described.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: July 18, 1995
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kyeong-su Yu