Patents by Inventor Ryoichi Tsuzaki

Ryoichi Tsuzaki 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: 8681163
    Abstract: A display device includes: a display unit in which pixels including memories are arranged; a memory unit holding data; and a control unit rewriting the contents held by memories concerning pixels belonging to a partial area of the display unit based on data held by the memory unit in accordance with instructions given from the outside.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: March 25, 2014
    Assignee: Japan Display West Inc.
    Inventors: Takayuki Nakanishi, Fumitaka Gotoh, Naoyuki Takasaki, Ryoichi Tsuzaki, Tsutomu Harada, Toshihiko Tanaka
  • Patent number: 8638317
    Abstract: Disclosed herein is a display apparatus including: a display panel having a display function and a light-receiving/imaging function; a first image processing section configured to generate a detection signal that indicates whether a to-be-detected object has been detected based on a result of first image processing performed on an image taken by the light-receiving/imaging function; a second image processing section configured to perform second image processing on the image processed by the first image processing section, the second image processing having a heavier processing load than the first image processing; and a control section configured to control an operation of the second image processing section in accordance with the detection signal generated by the first image processing section, and, when it is determined that the processing by the second image processing section is not necessary, control the second image processing section to enter a sleep state.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: January 28, 2014
    Assignee: Japan Display West Inc.
    Inventors: Tsutomu Harada, Shinya Hashimoto, Naoya Okada, Tadashi Maekawa, Kazunori Yamguchi, Mitsuru Tateuchi, Ryoichi Tsuzaki, Yoshiharu Nakajima, Chiaki Kon
  • Patent number: 8610670
    Abstract: The imaging and display apparatus is provided. The imaging and display apparatus includes the following elements. An imaging-and-display panel has an image display function and an imaging function. A generation unit generates a difference image representing a difference between a display-light-based image and a shadow image, the display-light-based image being obtained by the imaging-and-display panel by imaging an object close to the imaging-and-display panel using display light from the imaging-and-display panel, the shadow image being obtained by the imaging-and-display panel by imaging a shadow of the object. An image processing unit obtains information concerning at least one of a position, shape, and size of the object taking the shadow image and the difference image into account.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: December 17, 2013
    Assignee: Japan Display West Inc.
    Inventors: Tsutomu Harada, Takeru Tamayama, Kazunori Yamguchi, Mitsuru Tateuchi, Kouji Tsujimura, Ryoichi Tsuzaki
  • Patent number: 8587560
    Abstract: A display apparatus is provided and includes display cells each having a display circuit, light receiving cells each having a photosensor configured to receive light from an outside, and display signal lines. The display cells and the light receiving cells are arranged in a row direction perpendicular to the display signal lines and in a column direction parallel with the display signal lines. Also, the light receiving cells in each row are displaced in the row direction between every two adjacent rows in a column direction.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: November 19, 2013
    Assignee: Japan Display West Inc.
    Inventors: Mitsuru Tateuchi, Ryoichi Tsuzaki, Tsutomu Harada, Kazunori Yamaguchi
  • Publication number: 20130285988
    Abstract: An information input device includes an input panel and one or more circuits. The one or more circuits are configured to determine first, second and third representations of possible proximity of an object to an input panel from first, second and third input frames, respectively. The second input frame is generated after the first input frame, and the third input frame is generated after the second input frame. The one or more circuits are configured to determine whether proximity of the object to the input panel is detected for the second input frame, based on the third representation, if the first and second representations are not similar.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Applicant: Japan Display West Inc.
    Inventors: Ryoichi Tsuzaki, Kazunori Yamaguchi
  • Patent number: 8558854
    Abstract: An image recognition method includes: a first step of acquiring n-th received light data at light receiving elements arranged in a matrix form on a light receiving surface; a second step of acquiring (n+1)-th received light data at the light receiving elements; a third step of calculating differential data resulting from subtraction of the n-th received light data acquired from the (n+1)-th received light data acquired; and a fourth step of carrying out image recognition based on the differential data.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: October 15, 2013
    Assignee: Japan Display West, Inc.
    Inventors: Kazunori Yamaguchi, Michiru Senda, Mitsuru Tateuchi, Tsutomu Harada, Ryoichi Tsuzaki
  • Publication number: 20130235005
    Abstract: The present disclosure provides a display apparatus and an electronic apparatus wherein appropriate stereoscopic display can be carried out irrespective of the viewpoint position. The display apparatus includes a display section configured to have a plurality of pixels and display a plurality of viewpoint images allocated to different ones of the pixels; a detection section configured to detect an observation angle of an observer; and a display controlling section configured to change displaying positions of the viewpoint images at the pixels in response to the observation angle.
    Type: Application
    Filed: February 15, 2013
    Publication date: September 12, 2013
    Applicant: JAPAN DISPLAY WEST, INC.
    Inventors: Tsuyoshi Ohyama, Yingbao Yang, Ryoichi Tsuzaki
  • Patent number: 8519912
    Abstract: A liquid-crystal display apparatus is provided.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: August 27, 2013
    Assignee: Sony Corporation
    Inventors: Mitsuru Tateuchi, Tsutomu Harada, Daisuke Takama, Kazunori Yamaguchi, Ryoichi Tsuzaki
  • Patent number: 8514201
    Abstract: Provided is an image pickup device with which object detection can be performed with a good stability no matter in what use conditions. A display area 21 of an I/O display panel 20 is provided therein with a plurality of main sensors 32 each including, as a photosensitive wavelength region, a wavelength region ??23 of detection light for use to detect any proximity object, and a plurality of auxiliary sensors 33 whose photosensitivity in the wavelength region of the detection light is lower than photosensitivity of the main sensors 32. Moreover, with use of a composite image F derived based on a differential image MC obtained by the main sensors 32 and a differential image HC obtained by the auxiliary sensors 33, object information about the proximity object is acquired. Accordingly, even when the proximity object is moving on the display area 21 of the I/O display panel 20, for example, any false signal can be prevented from being generated in the composite image F.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: August 20, 2013
    Assignee: Japan Display West, Inc.
    Inventors: Tsutomu Harada, Yasuyuki Matsui, Daisuke Takama, Go Yamanaka, Yoshiharu Nakajima, Hiroshi Mizuhashi, Hideyuki Omori, Ryoichi Tsuzaki
  • Patent number: 8487886
    Abstract: An information input device is provided, which may perform highly-convenient processing in response to input of information with an external proximity object. The information input device includes: an input panel having a detection function of detecting an external proximity object, to be used in a state of being placed on a display panel; a position detection section detecting position and area value of the external proximity object based on a detection signal of the external proximity object obtained by the input panel; and an image generation section generating display data to be utilized to display an image including a display object, in such a manner that size of the display object displayed on the display panel at the detected position of the external proximity object is allowed to vary in accordance with the detected area value of the external proximity object.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: July 16, 2013
    Assignee: Japan Display West Inc.
    Inventors: Ryoichi Tsuzaki, Nobuki Furue, Mitsuo Okumura, Shingo Kurokawa, Kazunori Yamaguchi, Tsutomu Harada, Mitsuru Tateuchi
  • Patent number: 8482538
    Abstract: An information input device includes an input panel and one or more circuits. The one or more circuits are configured to determine first, second and third representations of possible proximity of an object to an input panel from first, second and third input frames, respectively. The second input frame is generated after the first input frame, and the third input frame is generated after the second input frame. The one or more circuits are configured to determine whether proximity of the object to the input panel is detected for the second input frame, based on the third representation, if the first and second representations are not similar.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: July 9, 2013
    Assignee: Japan Display West Inc.
    Inventors: Ryoichi Tsuzaki, Kazunori Yamaguchi
  • Patent number: 8466903
    Abstract: An image generating unit of a display apparatus generates a determination image based on first and second light reception images obtained from light reception cells in a light-emission period and in a non-light-emission period, respectively. An image determining unit determines whether or not an image of an object to be detected is included in the determination image, stores data corresponding to the determination image as initial data into a storage when the object image is not included in the determination image, and stores the data corresponding to the determination image as detection data into the storage when the object image is included in the determination image. A position determining unit determines at least an object position based on an image represented by the detection data in the storage and an image represented by the initial data in the storage.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: June 18, 2013
    Assignee: Japan Display West, Inc.
    Inventors: Mitsuru Tateuchi, Tsutomu Harada, Kazunori Yamaguchi, Ryoichi Tsuzaki
  • Publication number: 20130063499
    Abstract: A display device having a memory function within pixels, includes: a drive unit that divides image generation for one frame into plural sub-frames and performs display drive by time-division drive in units of sub-frames, wherein the drive unit performs drive of bringing centers of pixels of gray scale representation into coincidence with centers of display images among the plural sub-frames.
    Type: Application
    Filed: September 5, 2012
    Publication date: March 14, 2013
    Applicant: Japan Display West Inc.
    Inventors: Toshihiko Tanaka, Tsutomu Harada, Ryoichi Tsuzaki, Naoyuki Takasaki
  • Patent number: 8351055
    Abstract: Disclosed herein is a display apparatus including an input/output section for displaying an image as well as detecting a light beam representing an input received from an external source and is capable of handling inputs received from the external source as inputs destined for a plurality of points on a display screen. The apparatus further includes a target generation section configured to generate information on a target located on the display screen to represent a series of inputs received from the external source on the basis of a timewise or spatial relation between input portions located on the display screen as portions receiving inputs from the external source. The apparatus still further includes an event generation section configured to recognize an event representing a change of a state of the target on the basis of the information on the target and generate information on the event.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: January 8, 2013
    Assignee: Sony Corporation
    Inventors: Ryoichi Tsuzaki, Kazunori Yamaguchi, Tsutomu Harada, Mitsuru Tateuchi, Takeru Tamayama
  • Patent number: 8319749
    Abstract: An image pickup apparatus capable of easily improving the detection accuracy of a touching or proximity object is provided. An offset noise (a reset image R) is obtained by an image pickup process in a state (a reset state) in which an image pickup device is initialized. Moreover, a fingertip extraction process is performed in consideration of the offset noise on the basis of a picked-up image (a shadow image A or a display light-using image B) which is obtained by picking up an image of a proximity object to obtain object information about the proximity object. While an offset noise in the apparatus is easily reduced, object information about the proximity object can be obtained.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: November 27, 2012
    Assignee: Sony Corporation
    Inventors: Tsutomu Harada, Shinya Hashimoto, Tadashi Maekawa, Naoya Okada, Kazunori Yamaguchi, Mitsuru Tateuchi, Ryoichi Tsuzaki, Go Yamanaka
  • Publication number: 20120194480
    Abstract: An image generating unit of a display apparatus generates a determination image based on first and second light reception images obtained from light reception cells in a light-emission period and in a non-light-emission period, respectively. An image determining unit determines whether or not an image of an object to be detected is included in the determination image, stores data corresponding to the determination image as initial data into a storage when the object image is not included in the determination image, and stores the data corresponding to the determination image as detection data into the storage when the object image is included in the determination image. A position determining unit determines at least an object position based on an image represented by the detection data in the storage and an image represented by the initial data in the storage.
    Type: Application
    Filed: April 6, 2012
    Publication date: August 2, 2012
    Applicant: SONY CORPORATION
    Inventors: Mitsuru TATEUCHI, Tsutomu HARADA, Kazunori YAMAGUCHI, Ryoichi TSUZAKI
  • Publication number: 20120182305
    Abstract: Disclosed herein is an image display device, including: a display block displaying thereon an image by using pixels disposed in a two dimensional matrix; and a gradation converting block executing gradation converting processing by using an error diffusion method, wherein the gradation converting block partitions an area in which the pixels are disposed into virtual partitions, and carries out the error diffusion when the gradation converting processing is executed with respect to the pixels within the virtual partition exclusively within the virtual partition, thereby carrying out gradation conversion for the image which is displayed on the display block.
    Type: Application
    Filed: December 22, 2011
    Publication date: July 19, 2012
    Applicant: SONY CORPORATION
    Inventors: Ryoichi Tsuzaki, Naoyuki Takasaki
  • Publication number: 20120154416
    Abstract: A display device includes: a display unit in which pixels including memories are arranged; a memory unit holding data; and a control unit rewriting the contents held by memories concerning pixels belonging to a partial area of the display unit based on data held by the memory unit in accordance with instructions given from the outside.
    Type: Application
    Filed: October 17, 2011
    Publication date: June 21, 2012
    Applicant: Sony Corporation
    Inventors: Takayuki Nakanishi, Fumitaka Gotoh, Naoyuki Takasaki, Ryoichi Tsuzaki, Tsutomu Harada, Toshihiko Tanaka
  • Publication number: 20120133668
    Abstract: There is provided an image display device including a display unit that displays an image by pixels that are arranged in a two-dimensional matrix pattern; and a gradation conversion unit that performs gradation conversion using a dither matrix of diffusion type, wherein the gradation conversion unit applies a dither matrix that is randomly shifted in a horizontal direction and a vertical direction and performs gradation conversion of an image that is displayed on a display unit to each region of pixels that corresponds to the dither matrix.
    Type: Application
    Filed: October 17, 2011
    Publication date: May 31, 2012
    Applicant: Sony Corporation
    Inventors: Tsutomu Harada, Naoyuki Takasaki, Ryoichi Tsuzaki, Amane Higashi
  • Patent number: 8188987
    Abstract: A displaying and imaging apparatus includes a displaying and imaging panel, a generating unit for generating a difference image between a reflection light using image and a shadow image obtained from the displaying and imaging panel, and an image processing unit for obtaining information of at least one of position, shape, and size of the adjacent object on the basis of the difference image. The generating unit generates, on the basis of a plurality of images obtained at timings different from each other, which are one of the reflection light using image or the shadow image, one interpolation image corresponding to the one of images obtained at a timing different from those of the plurality of images, and generates the difference image by the difference between the interpolation image and the other one of the reflection light using image and the shadow image.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: May 29, 2012
    Assignee: Sony Corporation
    Inventors: Tsutomu Harada, Kazunori Yamaguchi, Mitsuru Tateuchi, Ryoichi Tsuzaki