Patents by Inventor Katsutoshi Ushida

Katsutoshi Ushida 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: 5724157
    Abstract: A facsimile apparatus is provided in which, when communication management data stored in a communication management-data storage unit and prescribed communication image data that has been stored in an accumulating memory are combined and outputted, required zoom processing is executed by a system controller and the communication management data and prescribed communication image data are combined and outputted in such a manner that the data will fit on one page.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: March 3, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Otani, Katsutoshi Ushida
  • Patent number: 5721793
    Abstract: The invention relates to an image processing method and apparatus in which, when a binary image is converted to a higher density and interpolated, more effective conversion patterns are proposed and the interpolation upon conversion to higher density is performed by a simple logic operation without using a pattern memory. One original pixel is subdivided into 2.sup.n portions (where n is an integer) in a main scanning direction and/or 2.sup.m portions (where m is an integer) in a subordinate scanning direction, and a density value (or sub-pixel) of the subdivided pixel of a pixel of interest, which has been subdivided, is decided based upon the density value of the original pixel of interest and density values of pixels peripheral thereto. An angle of inclination of a slanted line which is the object of interpolation processing is detected, and the number of sub-pixels, which undergo a density conversion for interpolation processing, is changed in dependence upon the angle of inclination.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: February 24, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsutoshi Ushida, Ikuo Sobue
  • Patent number: 5717793
    Abstract: When enlargement processing is performed, binary image data inputted from a data line 100 is subjected to contour smoothing by a contour smoothing and enlarging circuit 2 and the data is enlarged by a factor of n (where n is an integer) in the main scanning direction and m (where m is an integer) in the subordinate scanning direction. When reduction processing is performed, the binary image data is outputted as is from a selector 6 to a multivalue-converting circuit 3 via a signal line 200. In the multivalue-converting circuit 3, the binary image is stored temporarily in a memory, the image data of any area is extracted, image data of multivalued density is calculated based upon a window outputted from a weighting table with reference to an area comprising a pixel of interest and its peripheral pixels, and the multivalued data is outputted to a variable-power circuit 4 via a signal line 300.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: February 10, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsutoshi Ushida, Yuichi Bannai, Kunihiro Yamamoto
  • Patent number: 5644366
    Abstract: When an image is input, that input image is separated into a halftone region, such as a photograph, and a binary region, such as a character/line. Contour vector data along an edge of the separated binary image region is extracted. Regarding the binary image region, when the input image is to be enlarged or reduced and then output, individual coordinates in the extracted contour vector data are enlarged or reduced to reproduce the binary image.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: July 1, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsutoshi Ushida, Teruya Hara
  • Patent number: 5566003
    Abstract: The present invention has a transmission side apparatus to which an image to be transmitted is inputted, and an outline vector along the edge of the inputted image is extracted. The transmission side apparatus transmits data of the extracted outline vector to a receiving side apparatus via a data line. The receiving side apparatus reproduces the image in accordance with received outline vector data so as to output it to a predetermined visible image generating apparatus.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: October 15, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Teruya Hara, Shigeo Miura, Katsutoshi Ushida, Nobuyuki Shigeeda
  • Patent number: 5539541
    Abstract: An image processor in which an input device inputs image data. Image data of a subject pixel is smoothed in accordance with the image data of the subject pixel and peripheral pixels of the subject pixel. A judgment is made relative to the level of the image data of the image data of the subject pixel and the peripheral pixels. The image processor selectively outputs one of the smoothed image data and the image data of the subject pixel, based on the judgment.
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: July 23, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventor: Katsutoshi Ushida