Patents by Inventor Keiji Sawanobori

Keiji Sawanobori 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: 5526047
    Abstract: A CCD digital camera used for storing an image of an object has an imaging device for receiving an image of the object and for generating a digital signal corresponding to the image. A memory stores a predetermined portion of the digital signal, which is less than all of the digital signal, generated by the imaging device. A controller controls the transfer of the predetermined portion of the digital signal from the imaging device to the memory. A data compression unit compresses the predetermined portion of the digital signal stored in the memory and outputs a compressed signal corresponding to the predetermined portion of the digital signal to a storage device which stores the compressed digital signal. The controller inhibits transfer of a subsequent predetermined portion of the digital signal to the memory, until all of the predetermined portion of the digital signal has been compressed by the data compression unit and stored in the storage device.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: June 11, 1996
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventor: Keiji Sawanobori
  • Patent number: 5418564
    Abstract: A dual type imaging device includes a first CCD and a second CCD, on which complementary color filters with a checkerboard (or matrix) arrangement is disposed. The complementary color filters have the same construction as each other, having magenta elements, yellow elements, cyan elements and green elements arranged in a regular manner. The arrangement of the color elements of the filter of the first CCD is offset, by a width of one light-sensitive element, to the arrangement of the color elements of the filter of the second CCD. An R-signal, a G-signal and a B-signal are sensed in accordance with four light-sensitive elements which are arranged in a 2.times.2 matrix.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: May 23, 1995
    Assignee: Asashi Kogaku Kogyo Kabushiki Kaisha
    Inventors: Harumi Aoki, Nobuhiro Tani, Keiji Sawanobori