Patents by Inventor Fumio Okano

Fumio Okano 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: 7433127
    Abstract: Disclosed are an imaging device and a display device which both have a simple structure without any need of an image conversion. The imaging device includes a lens component group including multiple lens component systems, each of which focuses incident light from the object, thereby creating a non-inverted image of the object, the lens component systems being arranged in an array form and on the same level, and an image capturing mechanism for picking up the created image. In addition, each of the lens component systems includes an afocal optical system and an image-forming system. The afocal optical system includes at least one optical element for inverting an externally incident light ray relative to its optical axis and outputting the light ray. The optical element has uniform refractive index. The image-forming system includes at least one optical element having uniform refractive index throughout its interior.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: October 7, 2008
    Assignee: Nippon Hoso Kyokai
    Inventors: Jun Arai, Masaki Kobayashi, Tomoyuki Mishina, Makoto Okui, Fumio Okano
  • Patent number: 7330599
    Abstract: A contour compensation circuit that generates a contour-compensated signal by which a signal level of a contour of the object is emphasized, from an image signal obtained by an image pickup of an object. This circuit includes a reverse gamma controller, a contour compensation signal generator, and a calculator. The reverse gamma controller determines a standard channel from among the channels constituting the image signal, and obtains a liner standard channel from the standard channel by the reverse control. The contour compensation signal generator generates a contour compensation signal from the liner standard channel. The control signal generator computes a comparative value from the liner standard channel and the contour compensation signal, and generates a control signal based on a comparison between the comparative value and a threshold value. The calculator computes the contour-compensated signal based on the contour compensation and control signals, and the liner standard channel.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: February 12, 2008
    Assignee: Nippon Hoso Kyokai
    Inventors: Takayuki Yamashita, Masayuki Sugawara, Fumio Okano
  • Patent number: 7292271
    Abstract: A process for taking a slow motion picture is disclosed which comprises: setting a plurality of cameras each having a shutter so that each of them can take an image with a similar view; and continuously taking fields of a subject by said a plurality camera in a timely staggered manner. In this process, timing of opening the shutter of each camera is staggered so that each camera takes a picture timely staggered, and a time for opening the shutter of each cameras is set to be a shorter than one field time of said each camera.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: November 6, 2007
    Assignee: Nisson Hoso Kyokai
    Inventors: Fumio Okano, Masayuki Sugawara, Kohji Mitani, Takayuki Yamashita
  • Patent number: 7054067
    Abstract: A three-dimensional image optical system including at least an elementary image optical subsystem constructed with plural afocal optical elements which include the first and the second optical components, wherein the plural afocal optical elements are aligned in a planar arrangement. The variety of the focal length to satisfy the afocal property is realized with the combination of the first optical components and the second optical components, that results in to provide the flexibility of the depth magnification, by which a remote observation is possible.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: May 30, 2006
    Assignee: Nippon Hoso Kyokai
    Inventors: Fumio Okano, Makoto Okui, Jun Arai, Masaki Kobayashi
  • Patent number: 7042537
    Abstract: An image display panel that is composed of a plurality of picture elements aligned in a form of a matrix wherein picture elements consist of red, green and blue color cells corresponding to three primary colors and a picture element wherein three color cells are placed in an order of a red cell 2R, a green cell 2G and a blue cell 2B from a peripheral to the other peripheral and the other picture elements where three color cells are placed in an order of a blue cell 2B, a green cell 2G and a red cell 2R from a peripheral to the other peripheral are alternatively arranged in the vertical direction to the direction of the arrange of the cells in the picture element has been proposed. The invention can improve the picture quality of image display panel.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: May 9, 2006
    Assignee: Nippon Hoso Kyokai
    Inventors: Masaru Kanazawa, Isao Kondou, Fumio Okano
  • Publication number: 20060092527
    Abstract: Disclosed are an imaging device and a display device which both have a simple structure without any need of an image conversion. The imaging device includes a lens component group including multiple lens component systems, each of which focuses incident light from the object, thereby creating a non-inverted image of the object, the lens component systems being arranged in an array form and on the same level, and an image capturing mechanism for picking up the created image. In addition, each of the lens component systems includes an afocal optical system and an image-forming system. The afocal optical system includes at least one optical element for inverting an externally incident light ray relative to its optical axis and outputting the light ray. The optical element has uniform refractive index. The image-forming system includes at least one optical element having uniform refractive index throughout its interior.
    Type: Application
    Filed: October 21, 2005
    Publication date: May 4, 2006
    Applicant: NIPPON HOSO KYOKAI
    Inventors: Jun Arai, Masaki Kobayashi, Tomoyuki Mishina, Makoto Okui, Fumio Okano
  • Patent number: 6903785
    Abstract: In a liquid crystal projector device, a first polarization beam splitter 22 separates an entering green light into first and second green lights perpendicular to each other, and a first liquid crystal element 23 modulates the first green light via a second polarization beam splitter 24. Also, in the device of the present invention, while a first half-wave plate 25 revolves 90 degree a polarized plane of the second light separated by the first polarization beam splitter 22, a second liquid crystal element 26 modulates the second green light via a third polarization beam splitter 27, a second half-wave plate 28 revolves 90 degree a polarized plane of the second light transmitted through the third polarization beam splitter 27, and a fourth polarization beam splitter 29 transmits the first green light transmitted through the second polarization beam splitter 24 and reflects the second green light form the second half-wave plate 28.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: June 7, 2005
    Assignee: Nippon Hoso Kyokai
    Inventors: Tsutou Asakura, Tetsuji Suzuki, Masaru Kanazawa, Koichi Hamada, Fumio Okano
  • Patent number: 6899429
    Abstract: An optical processing unit comprises a dichroic filter to filtrate a green-colored light off a white light, a polarizer to selects a certain linearly polarized light component from the filtrated green-color light and a dichroic mirror to resolve the light into two lights as the first light beam and the second light beam divided at a predetermined wave length, two beam splitters to change the propagation direction of the light beams, liquid crystal devices to reflect the light beams thereon, reflective image superimposing devices to superimpose image information in the reflection onto two image lights and a dichroic mirror to compose these two image lights into an identically single image light which directs toward a direction in a single optical axis. This invention can provide an optical process unit that realizes a high fidelity stereo image display system wherein the pixel-shifted image generation and the stereo image display are compatible.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: May 31, 2005
    Assignee: Nippon Hoso Kyokai
    Inventors: Koichi Hamada, Masaru Kanazawa, Fumio Okano
  • Patent number: 6874890
    Abstract: A projecting a plurality of red pixels, green pixels, and blue pixels to display a color image on a screen. First and second green pixels differing in their positions correspond to red and blue pixels projected on the screen.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: April 5, 2005
    Assignee: Nippon Hoso Kyokai
    Inventors: Yasuyuki Haino, Ryou Nishima, Katsuyuki Shudo, Masaru Kanazawa, Koichi Hamada, Fumio Okano
  • Publication number: 20040263964
    Abstract: A three-dimensional image optical system comprising of at least an elementary image optical subsystem constructed with plural afocal optical elements which include the first and the second optical components, wherein the plural afocal optical elements are aligned in a planar arrangement. The variety of the focal length to satisfy the afocal property is realized with the combination of the first optical components and the second optical components, that results in to provide the flexibility of the depth magnification, by which a remote observation is possible.
    Type: Application
    Filed: May 20, 2004
    Publication date: December 30, 2004
    Inventors: Fumio Okano, Makoto Okui, Jun Arai, Masaki Kobayashi
  • Publication number: 20040145705
    Abstract: An optical processing unit comprises a dichroic filter to filtrate a green-colored light off a white light, a polarizer to selects a certain linearly polarized light component from the filtrated green-color light and a dichroic mirror to resolve the light into two lights as the first light beam and the second light beam divided at a predetermined wave length, two beam splitters to change the propagation direction of the light beams, liquid crystal devices to reflect the light beams thereon, reflective image superimposing devices to superimpose image information in the reflection onto two image lights and a dichroic mirror to compose these two image lights into an identically single image light which directs toward a direction in a single optical axis. This invention can provide an optical process unit that realizes a high fidelity stereo image display system wherein the pixel-shifted image generation and the stereo image display are compatible.
    Type: Application
    Filed: January 20, 2004
    Publication date: July 29, 2004
    Applicant: NIPPON HOSO KYOKAI
    Inventors: Koichi Hamada, Masaru Kanazawa, Fumio Okano
  • Publication number: 20040080696
    Abstract: An image display panel that is composed of a plurality of picture elements aligned in a form of a matrix wherein picture elements consist of red, green and blue color cells corresponding to three primary colors and a picture element wherein three color cells are placed in an order of a red cell 2R, a green cell 2G and a blue cell 2B from a peripheral to the other peripheral and the other picture elements where three color cells are placed in an order of a blue cell 2B, a green cell 2G and a red cell 2R from a peripheral to the other peripheral are alternatively arranged in the vertical direction to the direction of the arrange of the cells in the picture element has been proposed. The invention can improve the picture quality of image display panel.
    Type: Application
    Filed: October 7, 2003
    Publication date: April 29, 2004
    Applicant: NIPPON HOSO KYOKAI
    Inventors: Masaru Kanazawa, Isao Kondou, Fumio Okano
  • Publication number: 20040044424
    Abstract: A contour compensation circuit that generates a contour-compensated signal by which a signal level of a contour of the object is emphasized, from an image signal obtained by an image pickup of an object.
    Type: Application
    Filed: August 21, 2003
    Publication date: March 4, 2004
    Applicant: NIPPON HOSO KYOKAI
    Inventors: Takayuki Yamashita, Masayuki Sugawara, Fumio Okano
  • Publication number: 20040012761
    Abstract: The projection system of the present invention projects a plurality of red pixels, green pixels, and blue pixels to display a color image on a screen by projecting. In the projection system of the present invention, first and second green pixels differing in their positions correspond to red and blue pixels projected on the screen.
    Type: Application
    Filed: May 6, 2003
    Publication date: January 22, 2004
    Inventors: Yasuyuki Haino, Ryou Nishima, Katsuyuki Shudo, Masaru Kanazawa, Koichi Hamada, Fumio Okano
  • Publication number: 20030231250
    Abstract: A process for taking a slow motion picture is disclosed which comprises: setting a plurality of cameras each having a shutter so that each of them can take an image with a similar view; and continuously taking fields of a subject by said a plurality camera in a timely staggered manner. In this process, timing of opening the shutter of each camera is staggered so that each camera takes a picture timely staggered, and a time for opening the shutter of each cameras is set to be a shorter than one field time of said each camera.
    Type: Application
    Filed: April 2, 2003
    Publication date: December 18, 2003
    Inventors: Fumio Okano, Masayuki Sugawara, Kohji Mitani, Takayuki Yamashita
  • Publication number: 20030214635
    Abstract: In a liquid crystal projector device, a first polarization beam splitter 22 separates an entering green light into first and second green lights perpendicular to each other, and a first liquid crystal element 23 modulates the first green light via a second polarization beam splitter 24. Also, in the device of the present invention, while a first half-wave plate 25 revolves 90 degree a polarized plane of the second light separated by the first polarization beam splitter 22, a second liquid crystal element 26 modulates the second green light via a third polarization beam splitter 27, a second half-wave plate 28 revolves 90 degree a polarized plane of the second light transmitted through the third polarization beam splitter 27, and a fourth polarization beam splitter 29 transmits the first green light transmitted through the second polarization beam splitter 24 and reflects the second green light form the second half-wave plate 28.
    Type: Application
    Filed: May 6, 2003
    Publication date: November 20, 2003
    Inventors: Tsutou Asakura, Tetsuji Suzuki, Masaru Kanazawa, Koichi Hamada, Fumio Okano
  • Patent number: 6301416
    Abstract: In a three-dimensional imaging device, plural optical fibers which are provided with a lens characteristic by a refractive index distribution which is not uniform in a radial direction, such as a square-law characteristic, and which has the same length are configured so that the length &thgr; is an odd-number multiple of a half period of an optical path, and both ends of the optical fibers are arranged in the same two-dimensional manner. The configuration is used in a plural number so that a three-dimensional object is three-dimensionally imaged and the image is transmitted.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: October 9, 2001
    Assignee: Nippon Hoso Kyokai
    Inventors: Fumio Okano, Haruo Hoshino, Jun Arai, Tomoyuki Mishina
  • Patent number: 6137937
    Abstract: An autostereoscopic image apparatus for picking-up an autostereoscopic image and optically transmitting and displaying the autostereoscopic image. The autostereoscopic image apparatus is constructed by an assembly of a plurality of optical fibers each having an equal length and a lens function. The length of each of a plurality of optical fibers is equal to a length that is integer times as long as one period of an optical path in the optical fiber. The first edge surface of each of a plurality of optical fibers is located on the same plane and forms the first edge surface of the optical fiber assembly. The second edge surface of each of a plurality of optical fibers is located on the same plane and forms the second edge surface of the optical fiber assembly. An arrangement at the first edge surface of the optical fiber assembly at the edge surfaces of a plurality of optical fibers and an arrangement at the second edge surface are equal.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: October 24, 2000
    Assignee: Nippon Hoso Kyokai
    Inventors: Fumio Okano, Haruo Hoshino, Jun Arai, Tomoyuki Mishina
  • Patent number: 4864400
    Abstract: A television synchronization system in which a bipolar signal having a waveform including a front porch (304), a negative polarity pulse, a positive polarity pulse and a back porch is used as a horizontal sync signal, and a composite signal having a waveform including the positive polarity pulse, the back porch, a negative polarity pulse with a wide pulse width, a front porch and a negative polarity pulse is used as a vertical sync signal. When separating and reproducing the sync signals from a television signal transmitted through a transmission line, deviation of the reference phase can be eliminated so that the accuracy of the reproduced phase is improved. Therefore, the television synchronization system is preferably used in a high definition television system.
    Type: Grant
    Filed: May 28, 1987
    Date of Patent: September 5, 1989
    Assignee: Nippon Hoso Kyoka
    Inventors: Junji Kumada, Tetsuo Mitsuhashi, Fumio Okano, Jun'ichi Ishida, Takashi Oketani, Tatsuhiko Kondo