Patents by Inventor Koichi Hamada

Koichi Hamada 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: 8798153
    Abstract: A method of decoding videos comprises the steps of performing, in respect of a decoding objective area of decoding objective frame, a motion search by using images of plural frames finished with decoding and deciding, on the basis of the result of the motion search, whether an image of the decoding objective area is to be generated through an interpolation process or a decoded image is to be generated through motion compensation using data included in an encoding stream.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: August 5, 2014
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Shohei Saito, Masashi Takahashi, Muneaki Yamaguchi, Hiroaki Ito, Koichi Hamada
  • Publication number: 20140195648
    Abstract: The server device according to the embodiments provides users with more reliable recommendation information on electronic contents. This server device includes a game progression control unit for controlling progression of a game, an information storage unit for storing information, and a display control unit. The information storage unit includes: a use status management table for managing use status for each user of a plurality of online games provided by the server device; and a user-to-user relationship management table for managing information on relationship between users. The display control unit determines games to be recommended to a user based on information stored in the use status management table and the user-to-user relationship management table, and causes a terminal device to display information related to the games.
    Type: Application
    Filed: August 8, 2013
    Publication date: July 10, 2014
    Applicant: DeNA Co., Ltd.
    Inventor: Koichi Hamada
  • Patent number: 8774552
    Abstract: In order to transfer an image encoded at a high compression rate and suitably increase the resolution of the transferred image, it is provided an image transfer system, comprising: an image transmission unit that transmits an image; and an image reception unit that receives the image transmitted from the image transmission unit. The image transmission unit scales down the image, and transmits the scaled-down image to the image reception unit. The image reception unit calculates an angle between a line displayed in the image transmitted from the image transmission unit and a horizontal direction of the image in correspondence with pixels included in the image, scales up the image transmitted from the image transmission unit, and removes an aliasing component of the scaled-up image based on the calculated angle.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: July 8, 2014
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Yoshitaka Hiramatsu, Koichi Hamada, Kenichi Yoneji, Masahiro Kageyama, Muneaki Yamaguchi
  • Publication number: 20130321610
    Abstract: There is provided a technique to correctly select and measure a pattern to be measured even when contours of the pattern are close to each other in a sample including a plurality of patterns on a substantially same plane. A pattern measuring apparatus that scans a sample with charged particles, forms a detected image by detecting secondary charged particles or backscattered charged particles generated from the sample, and measures a pattern imaged on the detected image includes: an image acquiring section acquiring a plurality of detected images taken at a substantially same location on the sample under different imaging conditions; a contour extracting section extracting a plurality of pattern contours from the plurality of detected images; a contour reconstructing section reconstructing a contour to be measured by combining the plurality of pattern contours; and a contour measuring section making a measurement using the reconstructed contour to be measured.
    Type: Application
    Filed: May 21, 2013
    Publication date: December 5, 2013
    Inventors: Yoshinori Momonoi, Koichi Hamada, Yuji Takagi, Michio Hatano, Hideyuki Kazumi
  • Patent number: 8559527
    Abstract: An object of the present invention is to provide a technique of appropriately compensating for loss of even an entire image frame due to data error such as a transmission error to allow display of a high quality image. An image display apparatus of the present invention comprises: a decoding unit which decodes an encoded bit stream into an image signal; an interpolation image generating unit which generates an interpolation frame based on frames of the decoded image signal; and a control unit which detects an error in the encoded bit stream and controls the interpolation image generating unit; wherein when a frame of the encoded bit stream is lost (that is, it has not been able to be decoded) due to an uncorrectable error, the above interpolation frame is displayed instead of the lost frame.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: October 15, 2013
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Koichi Hamada, Masahiro Kageyama, Muneaki Yamaguchi
  • Publication number: 20130025636
    Abstract: [Problem] To provide a substrate treatment device which can more efficiently heat and more efficiently use a treatment solution to treat the surface of a plate-shaped substrate.
    Type: Application
    Filed: January 20, 2011
    Publication date: January 31, 2013
    Inventors: Yoshiaki Kurokawa, Koichi Hamada, Nobuo Kobayashi, Yuji Nagashima
  • Publication number: 20120301012
    Abstract: When super-resolution processing is applied to an entire screen image at the same intensity, a blur contained in an input image is uniformly reduced over the entire screen image. Therefore, the screen image may be seen differently from when it is naturally seen. As one of methods for addressing the problem, there is such a method that: when a first image for a left eye and a second image for a right eye are inputted, each of parameters concerning image-quality correction is determined based on a magnitude of a positional deviation between associated pixels in the first image and second image respectively; and the parameters are used to perform image-quality correction processing for adjusting a sense of depth of an image.
    Type: Application
    Filed: May 22, 2012
    Publication date: November 29, 2012
    Applicant: HITACHI CONSUMER ELECTRONICS CO., LTD.
    Inventors: Yasuki KAKISHITA, Isao KARUBE, Kenichi YONEJI, Koichi HAMADA, Yoshitaka HIRAMATSU
  • Patent number: 8319887
    Abstract: Provided is a frame rate conversion apparatus for inputting a video signal and inserting an interpolation frame into the video signal so as to convert a frame rate of the video signal. The apparatus includes: an input unit for inputting the video signal; a video interpolation unit for generating an interpolation frame and performing an interpolation process of the video signal; and a control unit for controlling the generation process of the interpolation frame by the video interpolation unit. The video interpolation unit performs the interpolation frame generation process by using a plurality of methods, and the control unit controls switching between the plurality of interpolation frame generating methods.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: November 27, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Hamada, Yoshiaki Mizuhashi, Mitsuo Nakajima, Masahiro Ogino
  • Patent number: 8319892
    Abstract: For providing a technology for preferably achieving high resolution of video signals of a video signal or moving video, with a small number of frames thereof, a video signal processing apparatus comprise an input unit to be inputted a plural number of video frames, a resolution converter unit, having resolution converting characteristics differing from each other, depending on a direction thereof, by composing 2 pieces of the video frames from the inputted video frames, thereby increasing a number of pixels making up the video frames, and a mixer unit for obtaining the output video frame by mixing output results of the resolution converter unit.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: November 27, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Koichi Hamada, Shigeki Nagaya
  • Publication number: 20120236183
    Abstract: In order to transfer an image encoded at a high compression rate and suitably increase the resolution of the transferred image, it is provided an image transfer system, comprising: an image transmission unit that transmits an image; and an image reception unit that receives the image transmitted from the image transmission unit. The image transmission unit scales down the image, and transmits the scaled-down image to the image reception unit. The image reception unit calculates an angle between a line displayed in the image transmitted from the image transmission unit and a horizontal direction of the image in correspondence with pixels included in the image, scales up the image transmitted from the image transmission unit, and removes an aliasing component of the scaled-up image based on the calculated angle.
    Type: Application
    Filed: February 9, 2012
    Publication date: September 20, 2012
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitaka HIRAMATSU, Koichi HAMADA, Kenichi YONEJI, Masahiro KAGEYAMA, Muneaki YAMAGUCHI
  • Patent number: 8243806
    Abstract: A video signal recording and reproducing apparatus is provided that is capable of reducing the encoding amount required for video recording thereby to record a longer video signal while suppressing deterioration of image quality when the video is displayed. An apparatus is also provided that is similarly capable of efficiently transmitting the video signal with a smaller transmission capacity during transmission of the video signal. A structure constituting the present invention comprises: a decoding unit which decodes an inputted video signal into video frames; a decimation unit which decimates the number of video frames decoded by the decimation unit; an encoding unit which encodes the video frames decimated by the decimation unit into encoded video signals; and a storage device which stores the video signals encoded by the encoding unit, wherein the decimation unit performs decimation for each video signal.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: August 14, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Hamada, Muneaki Yamaguchi, Masahiro Kageyama
  • Patent number: 8224123
    Abstract: A technique is provided for reducing the size of each of images included in an image signal and generating a high-resolution image with minimized degradation in the image quality from the reduced images. Alias components and motion information that are included in the image signal having the reduced images are used for conversion of the images included in the image signal into a high-resolution image. Low pass filtering is performed on a frequency component in the direction of a motion included in the image signal and a frequency component in a direction other than the direction of the motion. The cut-off frequency of the low pass filter in the direction other than the direction of the motion is lower than the cut-off frequency of the low pass filter in the direction of the motion.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: July 17, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Hamada, Masahiro Kageyama, Shigeki Nagaya
  • Patent number: 8224120
    Abstract: To perform an image processing for high resolution more suitably on even an image signal having images with different resolutions mixed therein. An image signal processing method of the present invention includes the steps of: performing a spatial low pass filter processing on a first image signal that is an input image; generating a second image signal by performing an image processing for high resolution on an image after the low pass filter processing; comparing corresponding regions in the first image signal and the second image signal; and selecting either of the first image signal and the second image signal with respect to the region based on this comparison result.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: July 17, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Hamada, Masahiro Kageyama, Kenichi Yoneji
  • Patent number: 8212927
    Abstract: The present invention relates to a technology of appropriately improving image resolution. According to an image signal processing method of the present invention, an input video signal contains an image signal whose pixel size is converted at a specified magnification scale. The input image signal is used to calculate sampling frequencies for image signals before and after the pixel size conversion. A ratio of sampling frequencies before and after the pixel size conversion is used to determine the specified magnification scale. A sampling phase for the image signal before the pixel size conversion is calculated from the input image signal after the pixel size conversion. A sampling carrier for the image signal before the pixel size conversion is generated from the sampling frequency and the sampling phase both before the pixel size conversion.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: July 3, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Koichi Hamada, Kenichi Yoneji
  • Patent number: 8170106
    Abstract: Apparatus including: a unit detecting a motion vector, among plural number of fields included in motion pictures, or fields, produced from the plural number of fields; a unit for converting the motion pictures into light-emission data for sub-fields; a unit for reconstructing the light-emission data for sub-fields, via calculating using the motion vector; and a unit for displaying the picture using the light-emission data outputted from the sub-field reconstruction unit, wherein the sub-field reconstruction unit selects the motion vector ending at a reconstruction target pixel of other one (1) field, among the motion vectors detected by the motion vector detection unit, and calculates a position vector, by multiplying a predetermined function onto this, and thereby reconstructing light-emission data for one (1) sub-field of the reconstruction target pixel, using the light-emission data for sub-fields corresponding to the one (1) sub-fields within the pixel, which is indicated by the position vector.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: May 1, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Hideharu Hattori, Koichi Hamada, Yasuhiro Akiyama, Masanori Takeuchi
  • Patent number: 8089557
    Abstract: A video signal processing apparatus, for achieving high resolution, with using a small number of frames, as an input videos signal, comprises: an input unit, into which a video frame is inputted; and a resolution converter unit for obtaining an output video frame by increasing a number of pixels building up the input video frame, wherein the resolution converter unit has a same-brightness direction estimation unit, which is configured to produce a sampling phase difference for each video data, by estimating a same-brightness direction for each video data on the input video frame, and the resolution converter unit conducts a high resolution process of video with using the sampling phase difference, which is produced by the same-brightness direction estimation unit.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: January 3, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Koichi Hamada, Kenichi Yoneji
  • Patent number: 7944504
    Abstract: A scanning line interpolating apparatus has a scanning line interpolating unit for converting an inputted interlaced scanning picture to a progressive scanning picture by using motion compensation, a motion vector search device that searches for a motion vector for use in the motion compensation, and a control unit for controlling the precision with which the motion vector is searched for. The control unit is adapted to determine the search precision on the basis of a pixel structure of a display device for displaying the progressive scanning picture.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: May 17, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Hamada, Mitsuo Nakajima
  • Patent number: 7830369
    Abstract: A video signal processing apparatus, for achieving high resolution of a video signal, in particular, the video signal of moving pictures, preferably, comprises a motion estimation portion (101) for estimating a sampling phase difference with using video data on an input video frame as a reference and each video data on other input video frame, a motion compensation/up-rate portion (115) for compensating motion of the video data of the each input video frame with using information of said sampling phase difference, as well as, to increase the number of pixels to n times, a phase shift portion (116) for shifting the video data of each of the video frames, the pixel number of which is increased, by a predetermined amount, a coefficient determining portion, which is configured to determine a coefficient with using information of said sampling phase difference; and an aliasing component removal portion (117) for removing (n?1) pieces of aliasing components, by adding each of video data in front and back of said ph
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: November 9, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kageyama, Koichi Hamada, Shigeki Nagaya
  • Patent number: 7733373
    Abstract: In a cellular phone terminal, a bit error rate measurement section measures a bit error rate of broadcast data received by a broadcast reception section for receiving a digital broadcast to output broadcast data while a transmission operation of a communication transmission section for wirelessly communicating with a broadcasting communication network is performed. When the measured bit error rate is equal to or higher than a predetermined threshold, stopping of the transmission operation of the communication transmission section is instructed. Thus, a failure such as interruption of television broadcasting reproduction can preliminarily be prevented by avoiding error occurrence in reception of the 1 segment broadcasting service due to an influence of a transmission electric wave in data communication. As a result, stable reception of the 1 segment broadcasting service can be executed.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: June 8, 2010
    Assignee: Casio Hitachi Mobile Communications Co., Ltd.
    Inventors: Yasuhiro Akiyama, Koichi Hamada, Masahiro Kageyama, Osamu Hasegawa
  • Patent number: 7734143
    Abstract: A disclosed technique for adjusting the image quality uses a moving picture for a sample stored in advance on a storage medium. A plurality of sample moving picture images, based on the moving picture for a sample read from the storage medium, having different image quality relative to each other are displayed on the screen. This technique enables confirmation of how the actual image having been subjected to the image quality adjustment would be displayed in an apparatus for displaying a moving image, such as a television receiver, because the sample stored on the storage medium is a moving picture.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: June 8, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiaki Mizuhashi, Mitsuo Nakajima, Yasutaka Tsuru, Koichi Hamada