Patents by Inventor Shoichi Ioka

Shoichi Ioka 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).

  • Relay based control system
    Patent number: 6020935
    Abstract: The relay apparatus comprises the matrix switch 61 and the CPU 62 to which control data are supplied from input devices. The CPU 62 detects whether it is possible to change the state of the specified electronic device according to the control data and controls transmission of the control data to the specified electronic device according to the result of the detection. The control data comprises change control data and reference control data for requesting the state of the selected electronic device to be changed and to be referred, respectively. In other words, the CPU 62 controls the matrix switch 61 so that both the change control data and the reference control data are transmitted to the selected electronic device when it is detected to be possible to change the state of the specified electronic device with control data and only the reference control data is transmitted to the specified electronic device when it is detected to be impossible to change the state of the selected electronic device.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: February 1, 2000
    Assignee: Sony Corporation
    Inventors: Shoichi Ioka, Masahiro Takeuchi, Seiji Sato
  • Contour-emphasizing apparatus in television camera
    Patent number: 5247360
    Abstract: A contour-emphasizing apparatus for a television camera includes a level correcting circuit for correcting an image signal non-linearly to the image signal level, so that the contour signal in a dark image region, is emphasized to a greater degree than to which the contour signal in a light image region is emphasized, to thereby produce a legible sharp image.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: September 21, 1993
    Assignee: Ikegami Tsushinki Co., Ltd.
    Inventors: Norihiko Kawada, Shoichi Ioka, Katsumi Degawa, Keiichi Fujishima
  • Apparatus for color correction of image signals of a color television camera
    Patent number: 5179437
    Abstract: A color correction apparatus for a color television camera, in which color correction is performed while comparing two images obtained from a test chart signal generated from a test chart signal-generating circuit disposed in the interior of a camera device or outside the camera device and a pick-up signal generated by photographing a test chart by a camera device. By arranging circuits for automatizing these functions, color correction based on various data is automatically carried out, and when a special effect is produced by performing color correction of other camera device based on color correction data detected by one camera device, the same color correction can be simultaneously performed in other camera device based on the color correction data of one camera device.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: January 12, 1993
    Assignee: Ikegani Tsushinki Co., Ltd.
    Inventors: Norihiko Kawada, Shoichi Ioka, Masahiro Yamashita, Moriki Miyamoto, Katsumi Degawa