Patents by Inventor Noritoshi Kako

Noritoshi Kako 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: 7295229
    Abstract: A surround surveillance system mounted on a mobile body for surveying surroundings around the mobile body includes an omniazimuth visual system, the omniazimuth visual system includes at least one omniazimuth visual sensor including an optical system capable of obtaining an image with an omniazimuth view field area therearound and capable of central projection transformation of the image into an optical image, and an imaging section including an imaging lens for converting the optical image obtained by the optical system into image data, an image processor for transforming the image data into at least one of panoramic image data and perspective image data, a display section for displaying one of a panoramic image corresponding to the panoramic image data and a perspective image corresponding to the perspective image data and a display control section for controlling the display section.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: November 13, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kiyoshi Kumata, Noritoshi Kako
  • Patent number: 6897883
    Abstract: An omniazimuthal visual system includes: an optical system capable of obtaining an image of 360° view field area therearound and capable of central projection transformation for the image: an imaging section for converting the image obtained through the optical system into image data; an image transformation section for transforming the image data into display data; a display section for displaying a transformed image based on the display data from the image transformation section; and a display control section for controlling the transformed image to be displayed on the display section, wherein the image transformation section includes at least one buffer memory for temporarily storing the image data and the display data, an arithmetic/logic circuit for performing coordinate transformation when the image data is transformed into the display data, a lookup table of a trigonometric function for use in the arithmetic/logic circuit, and a CPU for controlling the at least one buffer memory, the arithmetic/logic c
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: May 24, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kiyoshi Kumata, Noritoshi Kako
  • Patent number: 6865029
    Abstract: An imaging device includes a convex mirror for reflecting incident light representing an object, the convex mirror having a shape of solid of revolution; an imaging mechanism for taking an image represented by reflected light from the convex mirror; and an optical member for guiding the incident light toward the convex mirror and guiding the reflected light toward the imaging mechanism, the optical member being in close-contact with the convex mirror.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: March 8, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akihiko Kuriyama, Kiyoshi Kumata, Noritoshi Kako
  • Publication number: 20020109772
    Abstract: An imaging device includes a convex mirror for reflecting incident light representing an object, the convex mirror having a shape of solid of revolution; an imaging mechanism for taking an image represented by reflected light from the convex mirror; and an optical member for guiding the incident light toward the convex mirror and guiding the reflected light toward the imaging mechanism, the optical member being in close-contact with the convex mirror.
    Type: Application
    Filed: February 6, 2002
    Publication date: August 15, 2002
    Inventors: Akihiko Kuriyama, Kiyoshi Kumata, Noritoshi Kako
  • Publication number: 20020080017
    Abstract: A surround surveillance system mounted on a mobile body for surveying surroundings around the mobile body includes an omniazimuth visual system, the omniazimuth visual system includes at least one omniazimuth visual sensor including an optical system capable of obtaining an image with an omniazimuth view field area therearound and capable of central projection transformation of the image into an optical image, and an imaging section including an imaging lens for converting the optical image obtained by the optical system into image data, an image processor for transforming the image data into at least one of panoramic image data and perspective image data, a display section for displaying one of a panoramic image corresponding to the panoramic image data and a perspective image corresponding to the perspective image data and a display control section for controlling the display section.
    Type: Application
    Filed: October 11, 2001
    Publication date: June 27, 2002
    Inventors: Kiyoshi Kumata, Noritoshi Kako
  • Patent number: 6072627
    Abstract: A stereoscopic image capture device of this invention includes: an image capturing face on which light from an object is incident; an optical element disposed on a side of the image capturing face on which the light is incident, the optical element converting an angle at which the light is incident thereon to a distance from an optical axis the optical element; and an afocal optical system including a plurality of lenses, wherein the afocal optical system forms, on the optical element, an image of the object formed on one of the plurality of lenses which is closest to the object.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: June 6, 2000
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshio Nomura, Masayuki Katagiri, Keisuke Iwasaki, Noritoshi Kako
  • Patent number: 5949390
    Abstract: A three-dimensional display apparatus includes a liquid crystal panel 1 for displaying a discrete Fourier transformed image and a slit panel 2 having a convex lens function in a horizontal direction and a plurality of slits 3 arranged in a zig-zag manner, which is disposed in front of the liquid crystal panel 1. Since a spatial image is generated by such a configuration, a wide viewing region can be obtained. Since the number of slits positioned in the horizontal direction is increased as that of a slit pattern of a conventional slit array, the deterioration of resolution in the horizontal direction is reduced. Furthermore, since the slits are arranged in a zig-zag manner, the area of each light-shielding portion between sampling positions is reduced, thereby preventing an optical means from obstructing the observation of images.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: September 7, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshio Nomura, Masayuki Katagiri, Keisuke Iwasaki, Noritoshi Kako
  • Patent number: 5631666
    Abstract: A detection and hold circuit outputs a reference signal having a level proportional to an x-coordinate detection pulse input from an X-coordinate signal amplifier. A delay element delays the reference signal. An adder adds the x-coordinate detection pulse from the X-coordinate signal amplifier and a delayed signal from the delay element. Comparators obtain a coordinate detection pulse making a detection signal from another detection and hold circuit for an LCD voltage inversion pulse serve as a reference signal. Thus noise following the x-coordinate detection pulse is removed to generate a coordinate detection pulse with a reference value corresponding to the level of the LCD voltage inversion pulse to allow a stable coordinate detection to be achieved.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: May 20, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takao Tagawa, Kengo Takahama, Kazunari Okamura, Noritoshi Kako
  • Patent number: 5534886
    Abstract: Displacement between an actual designation position designated by a detection pen and a detection coordinates is corrected. A correction calculation section includes a plurality of processing mode determination modules, a propagation delay correction module, an inward displacement correction module, a waveform distortion correction module, and a periodical fluctuation correction module. The processing mode determination module determines a correction module according to a detection coordinate value input. Each of the correction modules includes a correction formula or a lookup table inherent to each area. According to the correction formula or the lookup table, input detection coordinate value is corrected to thereby correct the displacement between the actual designation position and the detection coordinate value.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: July 9, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshio Nomura, Takao Tagawa, Noritoshi Kako
  • Patent number: 5519533
    Abstract: There is reproduced a three-dimensional image in which there is no dimness or no cross talk and which is light and high in resolution, by a three-dimensional information reproducing apparatus comprising a liquid crystal panel for displaying a discrete Fourier transform image, a light source array which is disposed to the rear of the liquid crystal panel and which emits parallel light, and a synchronous control device for switching, with time division, the discrete Fourier transform image that is displayed in the liquid crystal panel and also an angle of the parallel light that is emitted from the source light array.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: May 21, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshio Nomura, Masayuki Katagiri, Noritoshi Kako
  • Patent number: 5509113
    Abstract: An apparatus for producing a railroad symbol and a road symbol, includes a CPU, a coordinates input device, an external storage device and a display. The CPU has an operation unit for performing a drawing operation, an interface circuit and a memory for storing data and a program. The railroad symbol is produced by continuous drawing of figure parts. The road symbol is produced by overlapping curved line drawn with a circle in a color and curved line drawn with smaller circle in another color.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: April 16, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masaki Takakura, Masaki Kobayashi, Yasukuni Yamane, Noritoshi Kako
  • Patent number: 5493427
    Abstract: A three-dimensional display unit has a liquid crystal panel for simultaneously displaying a plurality of different parallax images and an optical characteristic variable lens attached to the liquid crystal panel. The optical characteristic variable lens is formed by an array of cylindrical lenses such that a transparent substance having high flexibility is supported by transparent electrodes from both substance sides and optical characteristics of each of the cylindrical lenses can be changed by applying a voltage to the transparent substance to change at least one surface shape of the transparent substance.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: February 20, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshio Nomura, Masayuki Katagiri, Noritoshi Kako
  • Patent number: 5442373
    Abstract: Displacement between an actual designation position designated by a detection pen and a detection coordinates is corrected. A correction calculation section includes a plurality of processing mode determination modules, a propagation delay correction module, an inward displacement correction module, a waveform distortion correction module, and a periodical fluctuation correction module. The processing mode determination module determines a correction module according to a detection coordinate value input. Each of the correction modules includes a correction formula or a lookup table inherent to each area. According to the correction formula or the lookup table, input detection coordinate value is corrected to thereby correct the displacement between the actual designation position and the detection coordinate value.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: August 15, 1995
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshio Nomura, Takao Tagawa, Noritoshi Kako
  • Patent number: 5430462
    Abstract: There is provided an image input device-integrated type display device concurrently having an image display function, a document image input function, and a pen input function. A common electrode of the image input device-integrated type display unit is formed on a glass plate. A segment electrode is formed on a micro lens of a glass plate. An island electrode located at each pixel is connected to the segment electrode via a photoconductor. Liquid crystals are interposed between the common electrode and the island electrode. In an image input mode, light reflected on a document is applied to the photoconductor to control a voltage applied to the liquid crystals. In a pen input mode, light from an input pen is applied to the photoconductor to control a voltage applied to the liquid crystals. In an image display mode, a voltage applied to the liquid crystals is controlled according to image data of each pixel.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: July 4, 1995
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masayuki Katagiri, Takao Tagawa, Noritoshi Kako
  • Patent number: 5425111
    Abstract: A image processing apparatus for coloring an original image includes a unit for inputting an original image to be painted and a color image, a unit for dividing the original image input by the inputting unit into a plurality of areas corresponding to the original image and for generating area information data corresponding to the plurality of areas, a unit for selecting the same number of colors as the number of the plurality of areas based on data of the color image input by the inputting unit, and a unit for allocating the colors selected by the selecting unit to the plurality of divided areas based on the area information data.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: June 13, 1995
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Aoi Kitaura, Masaki Takakura, Yasukuni Yamane, Noritoshi Kako
  • Patent number: 5410329
    Abstract: A detection and hold circuit outputs a reference signal having a level proportional to an x-coordinate detection pulse input from an X-coordinate signal amplifier. A delay element delays the reference signal. An adder adds the x-coordinate detection pulse from the X-coordinate signal amplifier and a delayed signal from the delay element. Comparators obtain a coordinate detection pulse making a detection signal from another detection and hold circuit for an LCD voltage inversion pulse serve as a reference signal. Thus noise following the x-coordinate detection pulse is removed to generate a coordinate detection pulse with a reference value corresponding to the level of the LCD voltage inversion pulse to allow a stable coordinate detection to be achieved.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: April 25, 1995
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takao Tagawa, Kengo Takahama, Kazunari Okamura, Noritoshi Kako
  • Patent number: 5327263
    Abstract: An image processing apparatus comprises a liquid modulator having a photoconductive material including an image-writing plane, a liquid crystal layer laminated on the photoconductive material, a pair of electrodes sandwiching the photoconductive material and the liquid crystal layer, and a spacer inserted between the photoconductive material and one of the electrodes. Also provided are an analog writing system for analogously writing an original image in the light modulator; a digital reading system for digitally reading the image written in the light modulator; a processing section for image-processing the read image data; a digital writing system for digitally writing processed image data in the light modulator; and, an analog reading system for analogously reading an image written in the light modulator. The liquid crystal layer is either a phase-transition type liquid crystal, a p-type smectic A liquid crystal providing a storage function, or a ferroelectric liquid crystal providing a storage function.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: July 5, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masayuki Katagiri, Noritoshi Kako, Yoji Noguchi
  • Patent number: 5313226
    Abstract: An image synthesizing apparatus includes a first storage unit for storing first image data, a second storage unit for storing second image data, a third storage unit for storing data of a synthesizing ratio of the first image data to the second image data, a selective unit for selectively outputting at least the lower bits of the first and second image data based on the synthesizing ratio, and a synthesizing unit for synthesizing the image data selected by the selective unit and outputting the synthesized image data. The selective unit is connected to the first, second and third storage unit, and the synthesizing unit is connected to the selective unit.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: May 17, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masaki Takakura, Yasukuni Yamane, Noritoshi Kako
  • Patent number: 5309244
    Abstract: An image processing apparatus is provided to have a spatial light modulator onto and from which an image data is written and read, a digital reading system for digitally reading an image data written on the spatial light modulator, a processing unit for processing the read image data, and a digital writing system for digitally writing the processed data on the spatial light modulator. The digital reading or writing system serves to two-dimensionally move a laser beam on the spatial light modulator for reading or writing an image data from or onto the spatial light modulator. The digital reading or writing system provides a hologram disk having hologram lenses located in a concentric or spiral manner. The hologram disk is arranged to deflect the laser beam vertically and horizontally for scanning the spatial modulating element.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: May 3, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masayuki Katagiri, Kengo Takahama, Noritoshi Kako
  • Patent number: 5285193
    Abstract: A system which includes a chart forming section for forming a pattern of a chart to be displayed on a screen, a recording section for recording, per each record, attribute information which designates a predetermined position on the chart, a display section for displaying the chart formed by the chart forming device on the screen and also for displaying a symbol at the predetermined position on the chart as designated by each attribute information, and a designating section capable of designating the record corresponding to the attribute information which indicates the position of the symbol by specifying any of the symbol on the chart displayed on the screen by the display section.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: February 8, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Keisuke Iwasaki, Masaki Takakura, Yasukuni Yamane, Noritoshi Kako