Patents by Inventor Akira Kitazume

Akira Kitazume 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: 8390640
    Abstract: A television device structured to automatically adjust the color temperature on the display screen in accordance with the viewing environment includes an external light detection unit or an optical sensor for detecting the illuminance and the tint of the ambient light, and an image quality control unit or a microcomputer for adjusting quality of the video image to be displayed on the display panel. The image quality control unit adjusts the color temperature of the video image to be displayed in accordance with the illuminance value and the tint value detected by the external light detection unit. The optical sensor includes an illuminance sensor for mainly detecting the visible light, and an infrared sensor for mainly detecting the infrared light. The illuminance value and the tint value are obtained based on the output values of those two sensors.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: March 5, 2013
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Hiroshi Aoki, Akira Kitazume, Daisuke Honda, Naoya Oka, Yuki Nagano, Hiroyuki Kurabayashi, Akihiro Shiraishi, Toshiaki Ohyama
  • Patent number: 7920773
    Abstract: The present invention provides a video reproducing device which provides a function of reproducing a still image file and a moving image file recorded onto a recording medium in plural formats so that a user can easily identify a matched statuses of the files in the video reproducing device and can select and operate a target file as well as a control method therefor. The present invention displays an index screen in which thumbnails of a still image file and a moving image file in plural formats read from a recording medium are arrayed and further displays icons for clarifying a match relation between the video reproducing device and the files.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: April 5, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Masato Oshikiri, Haruki Takata, Akira Kitazume, Takehiro Uzawa
  • Publication number: 20100220109
    Abstract: A television device structured to automatically adjust the color temperature on the display screen in accordance with the viewing environment includes an external light detection unit or an optical sensor for detecting the illuminance and the tint of the ambient light, and an image quality control unit or a microcomputer for adjusting quality of the video image to be displayed on the display panel. The image quality control unit adjusts the color temperature of the video image to be displayed in accordance with the illuminance value and the tint value detected by the external light detection unit. The optical sensor includes an illuminance sensor for mainly detecting the visible light, and an infrared sensor for mainly detecting the infrared light. The illuminance value and the tint value are obtained based on the output values of those two sensors.
    Type: Application
    Filed: November 10, 2009
    Publication date: September 2, 2010
    Inventors: Hiroshi AOKI, Akira Kitazume, Daisuke Honda, Naoya Oka, Yuki Nagano, Hiroyuki Kurabayashi, Akihiro Shiraishi, Toshiaki Ohyama
  • Publication number: 20070031115
    Abstract: The present invention provides a video reproducing device which provides a function of reproducing a still image file and a moving image file recorded onto a recording medium in plural formats so that a user can easily identify a matched statuses of the files in the video reproducing device and can select and operate a target file as well as a control method therefor. The present invention displays an index screen in which thumbnails of a still image file and a moving image file in plural formats read from a recording medium are arrayed and further displays icons for clarifying a match relation between the video reproducing device and the files.
    Type: Application
    Filed: July 10, 2006
    Publication date: February 8, 2007
    Inventors: Masato Oshikiri, Haruki Takata, Akira Kitazume, Takehiro Uzawa
  • Patent number: 6239845
    Abstract: A television receiver and a signal receiving method thereof includes a terminal for connecting the television receiver to a personal computer for inputting information from the personal computer to the television receiver, a display for displaying a television signal, an input operation means, such as a remote controller, for generating a command signal, and a controller supplied with the command signal for controlling the personal computer and for inputting the information from the personal computer through the terminal to the television receiver for converting the television receiver from a television mode to a personal computer mode for displaying the information on a screen of said display. Advantageously, the personal computer and the television receiver are controlled by a command signal from the input operation means.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: May 29, 2001
    Assignees: Hitachi, Ltd., Hitachi Video and Information System, Incorporated
    Inventors: Tsuguo Itagaki, Chihiro Ikeda, Akira Kitazume