Patents by Inventor Shingo Yanagawa

Shingo Yanagawa 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: 10878898
    Abstract: A memory system includes a first memory, a second memory, and a first circuit. The first memory includes a memory cell array including memory cell transistors, and a peripheral circuit configured to read data of a plurality of bits stored in a memory cell transistor of the memory cell array based on a comparison between threshold voltages of the memory cell transistor and at least a part of n determination voltages (n?3). The first circuit is configured to calculate an estimated value of each of n?m determination voltages based on values of m determination voltages (2?m?n?1) among the n determination voltages, and calculate a difference between a value of each of the n?m determination voltages and a corresponding estimated value. The second memory is configured to store values of the m determination voltages and the difference for each of the n?m determination voltages.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: December 29, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Ryo Sekiguchi, Shingo Yanagawa, Yasuhiko Kurosawa, Eriko Akaihata
  • Publication number: 20200090742
    Abstract: A memory system includes a first memory, a second memory, and a first circuit. The first memory includes a memory cell array including memory cell transistors, and a peripheral circuit configured to read data of a plurality of bits stored in a memory cell transistor of the memory cell array based on a comparison between threshold voltages of the memory cell transistor and at least a part of n determination voltages (n?3). The first circuit is configured to calculate an estimated value of each of n?m determination voltages based on values of m determination voltages (2?m?n?1) among the n determination voltages, and calculate a difference between a value of each of the n?m determination voltages and a corresponding estimated value. The second memory is configured to store values of the m determination voltages and the difference for each of the n?m determination voltages.
    Type: Application
    Filed: March 4, 2019
    Publication date: March 19, 2020
    Inventors: Ryo SEKIGUCHI, Shingo YANAGAWA, Yasuhiko KUROSAWA, Eriko AKAIHATA
  • Publication number: 20120293544
    Abstract: According to an embodiment of the invention, in an image display apparatus, the image capturing unit captures an image including the hands of the operator. The gesture recognition unit recognizes at least one type of hand shapes of both hands in the captured image of the operator as a recognition object, compares a first geometric region defined by the hand shapes of both hands presented by the operator with the display screen, and recognizes the first geometric region as a second geometric region in a display screen coordinate system. The image generation unit performs emphasis processing of an image of the second geometric region displayed on the display screen. The display unit displays the emphasized image of the second geometric region on the display screen.
    Type: Application
    Filed: February 17, 2012
    Publication date: November 22, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Arata Miyamoto, Shingo Yanagawa, Tomokazu Wakasugi
  • Patent number: 8072484
    Abstract: An apparatus displaying a three-dimensional image is provided with a parallax barrier having optical openings arranged at a horizontal pitch n times as large as that of pixels arranged on a display surface. The parallax barrier reproduces rays from every n pixels on the display surface in a horizontal direction and no vertical parallaxes is displayed in a viewing area. Image data for a three-dimensional image is processed so as to be recorded in an efficient saving format which minimizes the degradation of image quality while accomplishing a high compression rate. Image data from a set of pixels constituting parallel rays in the same parallax direction are accumulated to obtain more than n parallax component images. Parallax component images corresponding to n-th adjacent parallax directions are combined together and thus converted into n connected images having the same numbers of vertical and horizontal pixels.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: December 6, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tatsuo Saishu, Shingo Yanagawa
  • Patent number: 7643033
    Abstract: Multi-dimensional texture mapping apparatus includes compression unit configured to compress texture image data including texture images by sampling the texture images in accordance with feature of material, the texture images acquired or created under different conditions, converter to convert the compressed texture image data into first multi-dimensional texture, the first multi-dimensional texture including a codebook and index images containing index information indicating addresses assigned to data of the codebook, the codebook storing image data extracted from same pixels in the texture images and collected, generation unit configured to generate second multi-dimensional texture of a size based on the first multi-dimensional texture, and mapping unit configured to map texture samples selected from the second multi-dimensional texture in accordance with the different conditions, based on a three-dimensional model data which specifies shape of an object mapped the texture samples.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: January 5, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Sekine, Yasunobu Yamauchi, Shingo Yanagawa
  • Patent number: 7583846
    Abstract: A texture image compressing device includes a separating unit configured to separate intensity maps that include intensity values and light source-independent texture images, those images including color components from a plurality of texture images corresponding to a plurality of different light source directions and a plurality of different viewpoint directions.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: September 1, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasunobu Yamauchi, Shingo Yanagawa, Masahiro Sekine, Takeshi Nagai, Hideyuki Ueno, Nakaba Kogure
  • Patent number: 7486817
    Abstract: An apparatus includes a stereoscopic display region calculator calculating a stereoscopic display region to reproduce a three-dimensional positional relationship in image data displayed on a stereoscopic display device, based on two-dimensional or three-dimensional image data, a position of a target of regard of a virtual camera set in processing of rendering the image data, and orientations of the light beams output from the stereoscopic display device. The apparatus also includes an image processor performing image processing on image data outside a region representing the outside of the stereoscopic display region calculated by the stereoscopic display region calculator. The image processing is different from image processing on image data inside a region representing the inside of the stereoscopic display region. The apparatus also includes an image generator generating stereoscopic display image data from the two-dimensional or three-dimensional image data after processed by the image processor.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: February 3, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shingo Yanagawa, Yasunobu Yamauchi, Kazuki Taira, Rieko Fukushima, Yuzo Hirayama
  • Publication number: 20090002483
    Abstract: An apparatus includes a stereoscopic display region calculator calculating a stereoscopic display region to reproduce a three-dimensional positional relationship in image data displayed on a stereoscopic display device, based on two-dimensional or three-dimensional image data, a position of a target of regard of a virtual camera set in processing of rendering the image data, and orientations of the light beams output from the stereoscopic display device. The apparatus also includes an image processor performing image processing on image data outside a region representing the outside of the stereoscopic display region calculated by the stereoscopic display region calculator. The image processing is different from image processing on image data inside a region representing the inside of the stereoscopic display region. The apparatus also includes an image generator generating stereoscopic display image data from the two-dimensional or three-dimensional image data after processed by the image processor.
    Type: Application
    Filed: August 28, 2008
    Publication date: January 1, 2009
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Shingo Yanagawa, Yasunobu Yamauchi, Kazuki Taira, Rieko Fukushima, Yuzo Hirayama
  • Publication number: 20080232647
    Abstract: A texture image compressing device includes a separating unit configured to separate intensity maps that include intensity values and light source-independent texture images, those images including color components from a plurality of texture images corresponding to a plurality of different light source directions and a plurality of different viewpoint directions.
    Type: Application
    Filed: April 2, 2008
    Publication date: September 25, 2008
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yasunobu Yamauchi, Shingo Yanagawa, Mashiro Sekine, Takeshi Nagai, Hideyuki Ueno, Nakaba Kogure
  • Patent number: 7372990
    Abstract: A texture image compressing device includes a separating unit configured to separate intensity maps, including intensity values and light source-independent texture images, those images including color components from a plurality of texture images corresponding to different light source directions and different viewpoint directions.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: May 13, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasunobu Yamauchi, Shingo Yanagawa, Masahiro Sekine, Takeshi Nagai, Hideyuki Uneo, Nakaba Kogure
  • Publication number: 20070109620
    Abstract: An apparatus displaying a three-dimensional image is provided with a parallax barrier having optical openings arranged at a horizontal pitch n times as large as that of pixels arranged on a display surface. The parallax barrier reproduces rays from every n pixels on the display surface in a horizontal direction and no vertical parallaxes is displayed in a viewing area. Image data for a three-dimensional image is processed so as to be recorded in an efficient saving format which minimizes the degradation of image quality while accomplishing a high compression rate. Image data from a set of pixels constituting parallel rays in the same parallax direction are accumulated to obtain more than n parallax component images. Parallax component images corresponding to n-th adjacent parallax directions are combined together and thus converted into n connected images having the same numbers of vertical and horizontal pixels.
    Type: Application
    Filed: January 12, 2007
    Publication date: May 17, 2007
    Inventors: Tatsuo Saishu, Shingo Yanagawa
  • Publication number: 20070013713
    Abstract: A multi-dimensional texture synthesis apparatus includes a generator to generate a reference multi-dimensional texture including a codebook and a reference index image, the codebook including a set of color information of the same-position pixels of the reference texture images, and the reference index image including a set of indexes for addressing the codebook, a quantizater to quantize the reference multi-dimensional texture at one or more quantization levels to generate a quantized codebook and a quantized reference index image, a synthesizer to synthesize a new index image having a specified size from the quantized reference index image using a hierarchical structure of the reference multi-dimensional texture corresponding to the one or more quantization levels, and a generator to generate the new multi-dimensional texture by combining the new index image with the quantized codebook.
    Type: Application
    Filed: September 12, 2006
    Publication date: January 18, 2007
    Inventors: Masahiro Sekine, Yasunobu Yamauchi, Shingo Yanagawa
  • Patent number: 7129954
    Abstract: A multi-dimensional texture synthesis apparatus includes a generator to generate a reference multi-dimensional texture including a codebook and a reference index image, the codebook including a set of color information of the same-position pixels of the reference texture images, and the reference index image including a set of indexes for addressing the codebook, a quantizater to quantize the reference multi-dimensional texture at one or more quantization levels to generate a quantized codebook and a quantized reference index image, a synthesizer to synthesize a new index image having a specified size from the quantized reference index image using a hierarchical structure of the reference multi-dimensional texture corresponding to the one or more quantization levels, and a generator to generate the new multi-dimensional texture by combining the new index image with the quantized codebook.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: October 31, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Sekine, Yasunobu Yamauchi, Shingo Yanagawa
  • Publication number: 20060114262
    Abstract: A texture mapping apparatus includes a vector computation unit configured to compute a plurality of projective coordinate system vectors to be acquired when a texture corresponding to an area included in a model surface is projected onto the area, based on configuration information of the area and the texture, a direction computation unit configured to compute an eyepoint direction from the area to an eyepoint and an illuminant direction from the area to an illuminant, based on the projective coordinate system vectors and a normal of a model plane of the area, and a changing unit configured to change the texture based on the eyepoint direction and the illuminant direction, and map the changed texture onto the model plane of the area.
    Type: Application
    Filed: November 15, 2005
    Publication date: June 1, 2006
    Inventors: Yasunobu Yamauchi, Shingo Yanagawa, Masahiro Sekine, Yoshiyuki Kokojima
  • Publication number: 20060066718
    Abstract: An apparatus for generating a parallax image to be used for a display of a three-dimensional image on a three-dimensional integral imaging display includes an image signal acquiring unit, an image signal assigning unit, and a parallax image generator. The image signal acquiring unit acquires a plurality of image signals by picking up an image of an image object from a plurality of different parallax directions. The image signal assigning unit assigns an output order of the plurality of image signal so that the plurality of image signals are arranged in a reverse parallax direction order to an order of beam directions of the three-dimensional integral imaging display. The parallax image generator generates a parallax image from the plurality of image signals to which an output order is assigned by the image signal assigning unit.
    Type: Application
    Filed: March 23, 2005
    Publication date: March 30, 2006
    Inventors: Shingo Yanagawa, Yasunobu Yamauchi, Kazuki Taira, Rieko Fukushima, Tatsuo Saishu, Yuzo Hirayama
  • Publication number: 20060017741
    Abstract: Multi-dimensional texture mapping apparatus includes compression unit configured to compress texture image data including texture images by sampling the texture images in accordance with feature of material, the texture images acquired or created under different conditions, converter to convert the compressed texture image data into first multi-dimensional texture, the first multi-dimensional texture including a codebook and index images containing index information indicating addresses assigned to data of the codebook, the codebook storing image data extracted from same pixels in the texture images and collected, generation unit configured to generate second multi-dimensional texture of a size based on the first multi-dimensional texture, and mapping unit configured to map texture samples selected from the second multi-dimensional texture in accordance with the different conditions, based on a three-dimensional model data which specifies shape of an object mapped the texture samples.
    Type: Application
    Filed: July 19, 2005
    Publication date: January 26, 2006
    Inventors: Masahiro Sekine, Yasunobu Yamauchi, Shingo Yanagawa
  • Publication number: 20050195478
    Abstract: An apparatus includes a stereoscopic display region calculator calculating a stereoscopic display region to reproduce a three-dimensional positional relationship in image data displayed on a stereoscopic display device, based on two-dimensional or three-dimensional image data, a position of a target of regard of a virtual camera set in processing of rendering the image data, and orientations of the light beams output from the stereoscopic display device. The apparatus also includes an image processor performing image processing on image data outside a region representing the outside of the stereoscopic display region calculated by the stereoscopic display region calculator. The image processing is different from image processing on image data inside a region representing the inside of the stereoscopic display region. The apparatus also includes an image generator generating stereoscopic display image data from the two-dimensional or three-dimensional image data after processed by the image processor.
    Type: Application
    Filed: February 28, 2005
    Publication date: September 8, 2005
    Inventors: Shingo Yanagawa, Yasunobu Yamauchi, Kazuki Taira, Rieko Fukushima, Yuzo Hirayama
  • Publication number: 20050105179
    Abstract: A stereoscopic image producing method can produce a stereoscopic image efficiently. The stereoscopic image producing method includes inputting a plurality of parallax images with pixel data including information pieces about the three primary colors, which are produced from different viewpoints, and, based upon information about arrangement of color pixel dots constituting a pixel of a display screen which displays a two-dimensional image thereon, composing some pieces of the three primary color information pieces in each of the parallax images and allocating the three primary color information pieces for different ones of the parallax images to the color pixel dots adjacent to each other in a screen horizontal direction on the display screen, where a stereoscopic image including a plurality of different parallax image information pieces in a horizontal direction in a space in which the stereoscopic image is displayed is produced.
    Type: Application
    Filed: September 29, 2004
    Publication date: May 19, 2005
    Inventors: Kazuki Taira, Yuzo Hirayama, Tatsuo Saishu, Rieko Fukushima, Yasunobu Yamauchi, Shingo Yanagawa
  • Publication number: 20040252892
    Abstract: A texture image compressing device includes a separating unit configured to separate intensity maps that include intensity values and light source-independent texture images, those images including color components from a plurality of texture images corresponding to a plurality of different light source directions and a plurality of different viewpoint directions.
    Type: Application
    Filed: January 28, 2004
    Publication date: December 16, 2004
    Inventors: Yasunobu Yamauchi, Shingo Yanagawa, Masahiro Sekine, Takeshi Nagai, Hideyuki Ueno, Nakaba Kogure
  • Publication number: 20040212625
    Abstract: A high-dimensional texture synthesis apparatus includes a generator to generate a reference high-dimensional texture including a codebook and a reference index image, the codebook including a set of color information of the same-position pixels of the reference texture images, and the reference index image including a set of indexes for addressing the codebook, a quantizater to quantize the reference high-dimensional texture at one or more quantization levels to generate a quantized codebook and a quantized reference index image, a synthesizer to synthesize a new index image having a specified size from the quantized reference index image using a hierarchical structure of the reference high-dimensional texture corresponding to the one or more quantization levels, and a generator to generate the new high-dimensional texture by combining the new index image with the quantized codebook.
    Type: Application
    Filed: March 5, 2004
    Publication date: October 28, 2004
    Inventors: Masahiro Sekine, Yasunobu Yamauchi, Shingo Yanagawa