Patents by Inventor Kenichi Iwauchi
Kenichi Iwauchi 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).
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Patent number: 10091489Abstract: An image capturing device includes at least two image sensors and an image processing unit that performs image processing on image information that is captured by image sensors and an image display unit that displays the image information on which the image processing is performed by the image processing unit. The image processing unit displays two base points on the image display unit in a same direction as a direction in which the two image sensors are arranged, calculates a disparity value between a first base point and a second base point that are the two base points with the two image sensors, calculates a length between the first base point and the second base point, and displays a result of calculation of the length between the first base point and the second base point on the image display unit.Type: GrantFiled: March 13, 2013Date of Patent: October 2, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Daisuke Murayama, Kenichi Iwauchi, Kei Tokui, Yasutaka Wakabayashi, Shinichi Arita, Nao Shibuhisa
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Publication number: 20180278902Abstract: Provided is a technique for projecting appropriate contents in accordance with different places of work. A projection device (101) is provided with a distance acquisition unit (201) configured to acquire the distance between an object and the projection device, a content acquisition unit (203) configured to acquire content information containing a video to be projected and the projection distance of the video, a projection video determination unit (205) configured to refer to the content information acquired by the content acquisition unit in accordance with the distance acquired by the distance acquisition unit and determine the video to be projected, and a projection processing unit (206) configured to project the video determined by the video determination unit on the object.Type: ApplicationFiled: September 28, 2016Publication date: September 27, 2018Inventors: TAKUTO ICHIKAWA, KENICHI IWAUCHI, MAKOTO OHTSU, TAICHI MIYAKE
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Publication number: 20160127657Abstract: An image-capturing system including at least three cameras with different image-capturing directions, a feature point extraction unit that extracts a feature point of a subject from images captured by the camera, and an image storage unit that stores images captured by the cameras is characterized by: a feature quantity calculation/detection unit that calculates a feature quantity of the subject from the feature point extracted by the feature point extraction unit; a direction estimation unit that estimates a direction in which the subject is oriented from the feature point extracted by the feature point extraction unit; and a stored camera image determination unit that determines a camera image to be stored in the image storage unit, wherein, when a difference between the feature quantity calculated by the feature quantity calculation unit and a particular feature quantity set in advance is not more than a certain value, the stored camera image determination unit determines, as a first stored image, the imagType: ApplicationFiled: May 20, 2014Publication date: May 5, 2016Inventors: Shigeki MUKAI, Yasutaka WAKABAYASHI, Kenichi IWAUCHI
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Publication number: 20150062305Abstract: An image capturing device includes at least two image sensors and an image processing unit that performs image processing on image information that is captured by image sensors and an image display unit that displays the image information on which the image processing is performed by the image processing unit. The image processing unit displays two base points on the image display unit in a same direction as a direction in which the two image sensors are arranged, calculates a disparity value between a first base point and a second base point that are the two base points with the two image sensors, calculates a length between the first base point and the second base point, and displays a result of calculation of the length between the first base point and the second base point on the image display unit.Type: ApplicationFiled: March 13, 2013Publication date: March 5, 2015Inventors: Daisuke Murayama, Kenichi Iwauchi, Kei Tokui, Yasutaka Wakabayashi, Shinichi Arita, Nao Shibuhisa
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Patent number: 8363134Abstract: Light 2 that is the subject to be imaged enters a lens system 3, and the light is transmitted and absorbed by a color filter 5. The transmitted components enter an image sensor 4 to be imaged. The color filter 5 is composed of, as shown in FIG. 7B, a transparent pixel (W) and micro filters including a filter (W-X) with a complementary color for the color matching function X, a filter (W-Y) with a complementary color for the color matching function Y, and a filter (W-Z) with a complementary color for the color matching function Z. Each of them is arranged to correspond in position to each pixel of the image sensor. As a result, light with components in the entire wavelength region, light with complementary color components of X, light with complementary color components of Y, and light with complementary color components of Z enter their respective pixels to be imaged.Type: GrantFiled: July 31, 2008Date of Patent: January 29, 2013Assignee: Sharp Kabushiki KaishaInventor: Kenichi Iwauchi
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Patent number: 8194095Abstract: A color image display device is provided to reproduce colors determined by an input video signal in a color space of the display device while keeping a wide color reproducing region of the display device with natural hues. On the assumption that a color space is hypothetically considered so that an input signal is originally in hue in a first color range while an increasing saturation is reproduced with hues changed gradually to a widening direction of color reproduction in a second color range or more, the color converting portion 12 converts a video signal, so that an input video signal 10 is reproduced on a color image displaying portion 13 with a tristimulus value represented in this hypothetical color space, and the color image displaying portion 13 displays, and reproduces, a vivid video image without a feeling of wrongness by making use of a wide color reproduction range of the color image display device.Type: GrantFiled: April 20, 2007Date of Patent: June 5, 2012Assignee: Sharp Kabushiki KaishaInventors: Takumi Imai, Kenichi Iwauchi
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Publication number: 20100265383Abstract: Light 2 that is the subject to be imaged enters a lens system 3, and the light is transmitted and absorbed by a color filter 5. The transmitted components enter an image sensor 4 to be imaged. The color filter 5 is composed of, as shown in FIG. 7B, a transparent pixel (W) and micro filters including a filter (W-X) with a complementary color for the color matching function X, a filter (W-Y) with a complementary color for the color matching function Y, and a filter (W-Z) with a complementary color for the color matching function Z. Each of them is arranged to correspond in position to each pixel of the image sensor. As a result, light with components in the entire wavelength region, light with complementary color components of X, light with complementary color components of Y, and light with complementary color components of Z enter their respective pixels to be imaged.Type: ApplicationFiled: July 31, 2008Publication date: October 21, 2010Inventor: Kenichi Iwauchi
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Publication number: 20090278982Abstract: A color image display device is provided to reproduce colors determined by an input video signal in a color space of the display device while keeping a wide color reproducing region of the display device with natural hues. On the assumption that a color space is hypothetically considered so that an input signal is originally in hue in a first color range while an increasing saturation is reproduced with hues changed gradually to a widening direction of color reproduction in a second color range or more, the color converting portion 12 converts a video signal, so that an input video signal 10 is reproduced on a color image displaying portion 13 with a tristimulus value represented in this hypothetical color space, and the color image displaying portion 13 displays, and reproduces, a vivid video image without a feeling of wrongness by making use of a wide color reproduction range of the color image display device.Type: ApplicationFiled: April 20, 2007Publication date: November 12, 2009Inventors: Takumi Imai, Kenichi Iwauchi
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Patent number: 7510300Abstract: A light emitting device provided with a plurality of types of light sources having different light emitting colors and with a light emission control means for allowing light to emit, during a specified period of monitoring a light emitting intensity, from at least one light source out of the plurality of types of light sources at a light emitting intensity different from that available outside the specified period. Accordingly, when a plurality of types of light sources are used, the light emitting intensities of a plurality of types of light sources can be monitored with light sensors of types fewer than the types of light sources to control while points and a brightness characteristics.Type: GrantFiled: February 27, 2003Date of Patent: March 31, 2009Assignee: Sharp Kabushiki KaishaInventors: Kenichi Iwauchi, Atsushi Yamanaka, Mitsuyoshi Seo, Akemi Oohara
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Patent number: 7465104Abstract: In a display device of the invention, driving of the piezoelectric element is controlled to change the light path of the propagating light inside a light guiding plate. By illuminating a liquid crystal panel in this manner, an illumination time and a no illumination time can be provided for the liquid crystal panel within one frame period. This realizes impulse-type-like display in displaying moving images on the liquid crystal panel, and thereby improves an image quality of moving images. Further, since the light is used only in desired regions, spontaneous luminance can be improved and the light can be used more efficiently.Type: GrantFiled: April 28, 2004Date of Patent: December 16, 2008Assignee: Sharp Kabushiki KaishaInventors: Kei Tokui, Kenichi Iwauchi
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Patent number: 7444052Abstract: A display device includes an illuminating device having an optical waveguide plate for introducing light thereinto, a drive assembly having a planar array of actuators disposed in facing relation to the optical waveguide plate, a displacement transmitter assembly disposed between the optical waveguide plate and the drive assembly, and a light scattering layer disposed on the displacement transmitter assembly. The actuators are selectively displaceable to bring the light scattering layer into and out of contact with the optical waveguide plate, for controlling light that leaks from the optical waveguide plate as emitted light. The display device also includes an optical modulator for modulating the emitted light from the illuminating device to display an image. The illuminating device has a light reflecting layer disposed on at least a portion of the displacement transmitter assembly that confronts the optical waveguide plate.Type: GrantFiled: March 17, 2005Date of Patent: October 28, 2008Assignees: NGK Insulators, Ltd., Sharp Kabushiki KaishaInventors: Kenichi Iwauchi, Kei Tokui, Yukihisa Takeuchi, Tsutomu Nanataki, Natsumi Shimogawa, Isao Shikata
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Publication number: 20070297061Abstract: In a projection type image display 50, LED's 51R, 51G and 51B are used as the light source so that the emitted light beam enters into an optical integrator 60. The optical integrator 60 is formed of four block materials 61 to 64 which are joined in the longitudinal direction, and a dichroic mirror 65R which reflects R light beams and transmits G and B light beams, a dichroic mirror 65G which reflects G light beams and transmits R and B light beams, and a dichroic mirror 65B which reflects B light beams and transmits R and G light beams are provided so as to be integrated with the joined surfaces which are inclined between the respective block materials 61 to 64.Type: ApplicationFiled: October 27, 2005Publication date: December 27, 2007Inventors: Tadao Kyomoto, Kenichi Iwauchi
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Publication number: 20070268234Abstract: A display device (1) of the present invention displays an image by using an organic layer (9) which emits light having such a wavelength that affects a biorhythm, and the display device (1) controls a luminous intensity of the organic layer (9).Type: ApplicationFiled: March 26, 2004Publication date: November 22, 2007Applicant: Sharp Kabushiki KaishaInventors: Yasutaka Wakabayashi, Atsushi Yamanaka, Kenichi Iwauchi, Emi Koyama
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Publication number: 20070008458Abstract: In a display device of the invention, driving of the piezoelectric element is controlled to change the light path of the propagating light inside a light guiding plate. By illuminating a liquid crystal panel in this manner, an illumination time and a no illumination time can be provided for the liquid crystal panel within one frame period. This realizes impulse-type-like display in displaying moving images on the liquid crystal panel, and thereby improves an image quality of moving images. Further, since the light is used only in desired regions, spontaneous luminance can be improved and the light can be used more efficiently.Type: ApplicationFiled: April 28, 2004Publication date: January 11, 2007Applicant: Sharp Kabushiki KaishaInventors: Kei Tokui, Kenichi Iwauchi
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Publication number: 20060146573Abstract: A light guide plate includes (i) a first light guide layer made of a material having a refractive index n1, and (ii) a scattering light guide layer having a function of scattering light. A reflection means for irradiating the scattering light guide layer with the light having propagated in the first light guide layer is provided on a surface opposite to a light guide surface of the first light guide layer, the light guide surface on which the light is incident. The scattering light guide layer includes at least (i) a second light guide layer made of a material having a refractive index n2 (n2<n1), and (ii) a scattering layer for scattering the light propagating in the second light guide layer.Type: ApplicationFiled: December 3, 2003Publication date: July 6, 2006Inventors: Kenichi Iwauchi, Yasutaka Wakabayashi, Akemi Oohara, Atsushi Yamanaka
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Publication number: 20050232573Abstract: A display device includes an illuminating device having an optical waveguide plate for introducing light thereinto, a drive assembly having a planar array of actuators disposed in facing relation to the optical waveguide plate, a displacement transmitter assembly disposed between the optical waveguide plate and the drive assembly, and a light scattering layer disposed on the displacement transmitter assembly. The actuators are selectively displaceable to bring the light scattering layer into and out of contact with the optical waveguide plate, for controlling light that leaks from the optical waveguide plate as emitted light. The display device also includes an optical modulator for modulating the emitted light from the illuminating device to display an image. The illuminating device has a light reflecting layer disposed on at least a portion of the displacement transmitter assembly that confronts the optical waveguide plate.Type: ApplicationFiled: March 17, 2005Publication date: October 20, 2005Applicants: Sharp Kabushiki Kaisha, NGK Insulators, Ltd.Inventors: Kenichi Iwauchi, Kei Tokui, Yukihisa Takeuchi, Tsutomu Nanataki, Natsumi Shimogawa, Isao Shikata
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Publication number: 20050117190Abstract: A light emitting device provided with a plurality of types of light sources having different light emitting colors and with a light emission control means for allowing light to emit, during a specified period of monitoring a light emitting intensity, from at least one light source out of the plurality of types of light sources at a light emitting intensity different from that available outside the specified period. Accordingly, when a plurality of types of light sources are used, the light emitting intensities of a plurality of types of light sources can be monitored with light sensors of types fewer than the types of light sources to control while points and a brightness characteristics.Type: ApplicationFiled: February 27, 2003Publication date: June 2, 2005Inventors: Kenichi Iwauchi, Atsushi Yamanaka, Mitsuyoshi Seo, Akemi Oohara
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Patent number: 6166791Abstract: A reflection-type liquid crystal displaying device is described. It has at least one optically transmitting first substrate on which an optically transmitting electrode is formed and a second substrate that reflects light. A liquid crystal layer is disposed between the first and the second substrates. An anisotropic scattering film for anisotropically scattering an incident light is formed directly on a side of the first substrate.Type: GrantFiled: December 21, 1998Date of Patent: December 26, 2000Assignee: Sharp Kabushiki KaishaInventors: Seiichi Mitsui, Kenichi Iwauchi
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Patent number: 5889570Abstract: A reflection-type liquid crystal displaying device includes an optically transmitting first substrate on which an optically transmitting electrode is at least formed; an anisotropic scattering/reflecting plate for performing a function of anisotropically scattering an incident light and a function of reflecting a light; and a liquid crystal layer disposed between the optically transmitting first substrate and the anisotropic scattering/reflecting plate. The obtained reflection-type liquid crystal displaying device exhibits an extremely bright, uniform, and good displaying capability.Type: GrantFiled: December 17, 1996Date of Patent: March 30, 1999Assignee: Sharp Kabushiki KaishaInventors: Seiichi Mitsui, Kenichi Iwauchi
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Patent number: 5841492Abstract: A liquid crystal display device comprising: a color filter layer having a set of a cyan color filter, a magenta color filter, a yellow color filter for each pixel, each of the color filters being aligned in parallel with each other, a first liquid crystal layer, provided for the color filters, for changing transmittance of light within a first range of wavelengths when an external electric field is applied thereto, and a second liquid crystal layer, provided for the color filters, for changing transmittance of light within a second range of wavelength when an external electric field is applied thereto, the first range of wavelengths being different from the second range of wavelengths. The color filter layer, and first and second liquid crystal layers can be laminated in an arbitrary order. As a result, a liquid crystal display device which realizes a high efficiency of light and bright multi-color display can be provided.Type: GrantFiled: November 2, 1995Date of Patent: November 24, 1998Assignee: Sharp Kabushiki KaishaInventors: Kenichi Iwauchi, Kazuhiko Tsuda, Naofumi Kimura