Patents by Inventor Tsunemori Asahi

Tsunemori Asahi 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).

  • Publication number: 20060066547
    Abstract: A display control apparatus that controls first and second modulation sections optically connected in series includes a storage unit and a control unit. The storage unit stores information to specify a defective pixel of the first modulation section. The control unit controls the second modulation section in response to a defect of the defective pixel being stored in the storage unit.
    Type: Application
    Filed: September 26, 2005
    Publication date: March 30, 2006
    Applicant: Seiko Epson Corporation
    Inventors: Takashi Nitta, Junichi Nakamura, Shoichi Uchiyama, Tsunemori Asahi
  • Patent number: 7016740
    Abstract: The object of the present invention is to relieve the load of management of devices connecting with a network. The technique of the present invention registers classification of printers connecting with a network LAN into at least one group, and specifies target printers, which are objects of management, by the unit of registered group. Operation setting data is generated in any of three applications; ‘Input’, ‘Obtain operation setting information from any model printer on the network’, and ‘Utilize default setting data’, and is output to the printers belonging to the specified group. This arrangement enables the operation setting of multiple printers to be carried out collectively, thus effectively relieving the load in management.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: March 21, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Junichi Nakamura, Akio Murata, Tsunemori Asahi
  • Publication number: 20060055835
    Abstract: An image processing apparatus for controlling a display apparatus including a luminance modulation element and a color modulation element that are configured using different modulation elements, includes: a control value determination unit that determines, based on an input target color value, using a plurality of color conversion matrixes that describe a relationship between the target color value and a control value for the color modulation element for each control value for the luminance modulation element, the control value for the color modulation element; and a correction unit that non-linearly corrects the control value for the color modulation element according to a characteristic of the color modulation element.
    Type: Application
    Filed: September 12, 2005
    Publication date: March 16, 2006
    Applicant: Seiko Epson Corporation
    Inventors: Takashi Nitta, Junichi Nakamura, Shoichi Uchiyama, Tsunemori Asahi
  • Publication number: 20060018040
    Abstract: Aspects of the invention can provide an image display device for modulating light from a light source on the basis of display image data to display an image. The image display device can include a first optically modulating device for modulating light from the light source, a second optically modulating device for modulating light from the first optically modulating device, a relay lens system provided between the first optically modulating device and the second optically modulating device for forming an optical image of the first optically modulating device on a light-receiving surface of the second optically modulating device, and at least one reflecting optical device provided between plural lenses forming the relay lens system.
    Type: Application
    Filed: July 15, 2005
    Publication date: January 26, 2006
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Shoichi Uchiyama, Junichi Nakamura, Takashi Nitta, Tsunemori Asahi
  • Publication number: 20050271312
    Abstract: A projection-type display device 100 including a light source 10, a luminance modulation light valve having a plurality of pixels capable of independently controlling a transmission factor T1, dichroic mirrors 44a and 44b that divided the light from the luminance modulation light valve into the three primary colors of red, green and blue, a plurality of color modulation light valves into which light divided with dichroic mirrors 44a and 44b respectively enters and have a plurality of pixels capable of independently controlling a transmission factor T2, and a dichroic prism 48 that synthesizes light from each of the color modulation light valves, and is provided with a relay optical system 16 on the light path of a luminance modulation section 14 and a color modulation section 18 that forms an optical image of the luminance modulation light valve on the pixel surfaces of each of the color modulation light valves.
    Type: Application
    Filed: December 20, 2004
    Publication date: December 8, 2005
    Applicant: Seiko Epson Corporation
    Inventors: Shoichi Uchiyama, Yoshitaka Itoh, Junichi Nakamura, Takashi Nitta, Tsunemori Asahi
  • Publication number: 20050270618
    Abstract: Aspects of the invention can provide an image display apparatus for displaying an image by modulating light from a light source based on display image data. The apparatus can include a first light modulator device can modulate light from the light source, a second light modulator device that can modulate the light from the first light modulator device, and a polarization compensation system disposed between the first light modulator device and the second light modulator device for compensating a polarization state of light.
    Type: Application
    Filed: June 3, 2005
    Publication date: December 8, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Shoichi Uchiyama, Junichi Nakamura, Takashi Nitta, Tsunemori Asahi
  • Publication number: 20050212786
    Abstract: Exemplary embodiments of the invention provide an optical display device that modulates light from a light source in two stages through an optical modulator and a luminance adjusting element to expand the luminance dynamic range and the number of the gradation levels of a display image, that allows the picture quality to be enhanced, and that is suitably applied to display an image according to the resolution of the luminance adjusting element having a higher resolution than the optical modulator. Exemplary embodiments provide a projection type display device that converts RGB pixel values in HDR display data into YCbCr pixel values, selects the maximum Ymax from corresponding YCbCr values on a pixel-basis in a color modulation light valve, and calculates average values Cbave and Crave.
    Type: Application
    Filed: March 18, 2005
    Publication date: September 29, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi Nitta, Junichi Nakamura, Shoichi Uchiyama, Tsunemori Asahi
  • Publication number: 20050195223
    Abstract: Exemplary embodiments of the invention to provide a light modulating apparatus suitable to expand the brightness dynamic range and number of levels of gray of display images to enhance image quality by modulating light from a light source in two stages via a first light modulator device and a second light modulator device, and displaying images according to the resolution of the second light modulator device higher than the resolution of the first light modulator device.
    Type: Application
    Filed: March 2, 2005
    Publication date: September 8, 2005
    Applicant: Seiko Epson Corporation
    Inventors: Takashi Nitta, Junichi Nakamura, Shoichi Uchiyama, Tsunemori Asahi
  • Publication number: 20050190140
    Abstract: In a projection-type display device 1, a display control device 2 that controls a first DMD 50 and a second DMD 70 is composed by comprising an interface circuit 2a, a mirror device drive circuit 2b for controlling the driving of the micromirrors of second DMD 50, a mirror device drive circuit 2c for controlling the driving of the micromirrors of second DMD 70, a CPU 2d that controls computations and the entire system based on a control program, a ROM 2e that contains the control program of CPU 2d and so forth in a predefined area, and a RAM 2f for containing data read from ROM 2e and so forth and computation results required for the computation process of CPU 2d.
    Type: Application
    Filed: February 25, 2005
    Publication date: September 1, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tsunemori Asahi, Junichi Nakamura, Shoichi Uchiyama, Takashi Nitta
  • Publication number: 20050190256
    Abstract: Exemplary embodiments of the invention provide a light propagation characteristic control apparatus which realizes to extend the light-intensity dynamic range and the number of levels, and is suited for enhancing image quality and reducing the size and generation time of tables. A projection display apparatus tentatively decides a transmissivity T2 of each pixel of a color-modulation light valve, decides a transmissivity T1 of each pixel of an light intensity-modulation light valve depending upon a tentatively decided transmissivity T2 and HDR display data and decides a control value of each pixel of an light intensity-modulation light valve depending upon a decided transmissivity T1. Then, depending upon a decided transmissivity T1 and HDR display data, a transmissivity T2 is decided of each pixel of the color modulation light valve. Depending upon a decided transmissivity T2, decided is a control value of each pixel of the color modulation light valve.
    Type: Application
    Filed: December 15, 2004
    Publication date: September 1, 2005
    Applicant: Seiko Epson Corporation
    Inventors: Takashi Nitta, Junichi Nakamura, Shoichi Uchiyama, Tsunemori Asahi
  • Publication number: 20050185249
    Abstract: A projection type display device includes dichroic mirrors which separate the light from the light source into light of the three primary colors R, G and B, a plurality of color modulation light valves upon which the light beams separated by the dichroic mirrors are respectively incident and comprising a plurality of picture elements which are capable of being individually controlled with regard to their transmittivity ratios, a dichroic prism which combines the light beams from the color modulation light valves, a relay lens which forms the optical images of the color modulation light valves upon the picture element surface of a reflective type liquid crystal light valve, and a reflective type liquid crystal light valve upon which the light from the relay lens is incident and comprising a plurality of picture elements whose reflectivity ratios can be individually controlled.
    Type: Application
    Filed: February 8, 2005
    Publication date: August 25, 2005
    Applicant: SEIKO EPSON CORORATION
    Inventors: Shoichi Uchiyama, Junichi Nakamura, Takashi Nitta, Tsunemori Asahi
  • Publication number: 20050174495
    Abstract: A projection-type display device 1 including a light source 10, an optical integrator 20, dichroic mirrors 30 and 35, a reflecting mirror 36, a relay optical system 40, parallelizing lenses 50B, 50G and 50R, liquid crystal light valves 60B, 60G and 60R, incident side lenses 70B, 70G and 70R, a light-synthesizing cross dichroic prism 80, a relay lens 90, an emergent side lens 95, a liquid crystal light valve 100 and a projection lens 110, and liquid crystal light valve 100 is provided in the rear stage of liquid crystal light valves 60B, 60G and 60R.
    Type: Application
    Filed: December 17, 2004
    Publication date: August 11, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshitaka Itoh, Shohei Yoshida, Shoichi Uchiyama, Junichi Nakamura, Takashi Nitta, Tsunemori Asahi
  • Publication number: 20050157366
    Abstract: Exemplary embodiments of the present invention provide a light propagation characteristic control apparatus which extends the light-intensity dynamic range and the number of levels, and are suited for enhancing image quality and reducing the size and generation time of tables. Exemplary embodiments provide a projection display apparatus that tentatively decides a transmissivity T2 of each pixel of a color-modulation light valve depending upon HDR display data, and decides a transmissivity T1 of each pixel of an intensity-modulation light valve depending upon a tentatively decided transmissivity T2 and the HDR display data, and a control value of each pixel of the intensity-modulation light valve depending upon a decided transmissivity T1. Depending upon a decided transmissivity T1 and the HDR display data, transmissivity T2 is decided of each pixel of the color-modulation light valve. Depending upon a decided transmissivity T2, a control value is decided of each pixel of the color-modulation light valve.
    Type: Application
    Filed: December 17, 2004
    Publication date: July 21, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tsunemori Asahi, Junichi Nakamura, Shoichi Uchiyama, Takashi Nitta
  • Publication number: 20040187079
    Abstract: To provide a layout system which is suitable for preventing deviation from the layout intended by the designer and which is highly flexible in terms of layout.
    Type: Application
    Filed: January 8, 2004
    Publication date: September 23, 2004
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Satoshi Yamada, Tsunemori Asahi
  • Publication number: 20040039811
    Abstract: The object of the present invention is to relieve the load of management of devices connecting with a network.
    Type: Application
    Filed: August 12, 2003
    Publication date: February 26, 2004
    Applicant: Seiko Epson Corporation
    Inventors: Junichi Nakamura, Akio Murata, Tsunemori Asahi
  • Publication number: 20030074448
    Abstract: A request for transition from a process controlled by HTTP protocol to a special process controlled by a protocol different from the HTTP protocol is made by a URL as command transfer means. When the URL is input via an information terminal to a server, a client agent is started on the information terminal side, and an agent service section is started on the sever side. The client agent and the agent service section carry out the special process, such as an authentication process, while bi-directionally transmitting and receiving data to and from each other. A service manager controls the special process such that transition to another process, such as a channel-switching process, is inhibited during execution of the authentication process by the client agent and the agent service section.
    Type: Application
    Filed: August 7, 2002
    Publication date: April 17, 2003
    Inventors: Tadashi Kinebuchi, Takao Ozawa, Yu Gu, Tsunemori Asahi, Hiroaki Kanisawa, Hiroyasu Fukazawa
  • Publication number: 20020161740
    Abstract: The object of the present invention is to relieve the load of management of devices connecting with a network.
    Type: Application
    Filed: November 21, 2001
    Publication date: October 31, 2002
    Inventors: Junichi Nakamura, Akio Murata, Tsunemori Asahi
  • Patent number: 5859926
    Abstract: A data coding device codes input object color pixel data into coded data. The data coding device includes a parallel/serial converter that converts the object color pixel data composed of parallel data of multiple bits into serial data, a state signal generator that generates a states signal for each bit of the serial data and a prediction device which groups each bit of the serial data based on the state signal, and an arithmetic calculator that converts the color pixel data into coded data based on the data received from the prediction device. A corresponding data decoding device is also disclosed.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: January 12, 1999
    Assignee: Seiko Epson Corporation
    Inventors: Tsunemori Asahi, Akinari Todoroki, Noboru Ninomiya