Patents by Inventor Kenjiro Chyo

Kenjiro Chyo 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).

  • Image data processing using bi-level and multi-level value data
    Patent number: 5864638
    Abstract: Disclosed is a method of processing image data, including controlling to output multi-level value image data for reproducing a multi-level value image and bi-level value image data for reproducing a bi-level value image with respect to a predetermined area, thereby reproducing the multi-level and bi-level value images which constitute a single image.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: January 26, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhisa Ishizawa, Kenjiro Chyo, Hiroshi Nonoshita, Yasuhisa Shigehara, Seiji Saito, Shigeki Miura
  • Image processing method and apparatus suitable for both high-resolution and low-resolution image data
    Patent number: 5781666
    Abstract: An image processing apparatus makes it possible to efficiently use memories, and to output an image having a high picture quality and a high resolution. The apparatus also makes it possible to reproduce particularly edge portions of an image having a relatively low resolution wherein a plurality of bits are allocated per picture element, with a high resolution. The apparatus further makes it possible to reproduce an image having a high resolution represented by one bit per picture element as an image represented by a plurality of bits per picture element. The apparatus processes a color image obtained by synthesizing a photograph and another photograph, or a photograph and characters with a small memory capacity, and outputs an image having a high quality.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: July 14, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhisa Ishizawa, Yoshitsugu Yamanashi, Hiroshi Nonoshita, Kenjiro Chyo
  • Image data processing using bi-level and multi-level value data
    Patent number: 5521990
    Abstract: Disclosed is a method of processing image data, including controlling to output multi-level value image data for reproducing a multi-level value image and bi-level value image data for reproducing a bi-level value image with respect to a predetermined area, thereby reproducing the multi-level and bi-level value images which constitute a single image.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: May 28, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhisa Ishizawa, Kenjiro Chyo, Hiroshi Nonoshita, Yasuhisa Shigehara, Seiji Saito, Shigeki Miura