Patents by Inventor Takao Nozawa

Takao Nozawa 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: 8340174
    Abstract: Disclosed herein is an image processing device for coding image data, which is divided by a given pixel count into macroblocks, on a macroblock-by-macroblock basis, the image processing device including: a quantization section configured to quantize image data on a macroblock-by-macroblock basis; a detection section configured to detect a macroblock containing a given color pixel from the image data; and a control section configured to control the quantization section, the control section including a distance calculation section configured to calculate the distance between a given image position in a picture of the image data and an image position in the macroblock detected by the detection section, and a bitrate control section configured to control the quantization section so that a higher bitrate is assigned with decreasing distance calculated by the distance calculation section.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: December 25, 2012
    Assignee: Sony Corporation
    Inventors: Yuji Wada, Takao Nozawa
  • Publication number: 20090135903
    Abstract: Disclosed herein is an image processing device for coding image data, which is divided by a given pixel count into macroblocks, on a macroblock-by-macroblock basis, the image processing device including: a quantization section configured to quantize image data on a macroblock-by-macroblock basis; a detection section configured to detect a macroblock containing a given color pixel from the image data; and a control section configured to control the quantization section, the control section including a distance calculation section configured to calculate the distance between a given image position in a picture of the image data and an image position in the macroblock detected by the detection section, and a bitrate control section configured to control the quantization section so that a higher bitrate is assigned with decreasing distance calculated by the distance calculation section.
    Type: Application
    Filed: October 6, 2008
    Publication date: May 28, 2009
    Inventors: Yuji WADA, Takao Nozawa
  • Patent number: 7144025
    Abstract: A wheelchair is disclosed that includes a seat, a pair of wheels, a detection part indicating the presence or absence of a user on the seat, electric brake units switching between applying braking forces to and releasing braking forces from the wheels based on control signals, and a control part connected to the detection part and the electric brake units and outputting the control signals to the electric brake units. The control signals include a first control signal causing the braking forces by the electric brake units to be applied to the wheels and a second control signal causing the braking forces by the electric brake units to be released therefrom. The first control signal is output when the detection part indicates the absence of the user on the seat, and the second control signal is output when the detection part indicates the presence of the user on the seat.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: December 5, 2006
    Assignee: Teac Corporation
    Inventors: Toyoaki Wakita, Takao Nozawa, Kiyoshi Takagi
  • Publication number: 20050087954
    Abstract: A wheelchair is disclosed that includes a seat, a pair of wheels, a detection part indicating the presence or absence of a user on the seat, electric brake units switching between applying braking forces to and releasing braking forces from the wheels based on control signals, and a control part connected to the detection part and the electric brake units and outputting the control signals to the electric brake units. The control signals include a first control signal causing the braking forces by the electric brake units to be applied to the wheels and a second control signal causing the braking forces by the electric brake units to be released therefrom. The first control signal is output when the detection part indicates the absence of the user on the seat, and the second control signal is output when the detection part indicates the presence of the user on the seat.
    Type: Application
    Filed: October 22, 2004
    Publication date: April 28, 2005
    Inventors: Toyoaki Wakita, Takao Nozawa, Kiyoshi Takagi
  • Patent number: D325183
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: April 7, 1992
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Yukio Nishikawa, Takao Nozawa, Masatoshi Satoh