Patents by Inventor Keiji Hatanaka

Keiji Hatanaka 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: 10951876
    Abstract: The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: March 16, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masato Nagasawa, Keiji Hatanaka, Kazuhiro Kurisaki
  • Publication number: 20190327461
    Abstract: The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 24, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masato NAGASAWA, Keiji HATANAKA, Kazuhiro KURISAKI
  • Patent number: 10382741
    Abstract: The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: August 13, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masato Nagasawa, Keiji Hatanaka, Kazuhiro Kurisaki
  • Publication number: 20170374348
    Abstract: The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.
    Type: Application
    Filed: June 29, 2017
    Publication date: December 28, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masato NAGASAWA, Keiji HATANAKA, Kazuhiro KURISAKI
  • Patent number: 9729851
    Abstract: The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: August 8, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masato Nagasawa, Keiji Hatanaka, Kazuhiro Kurisaki
  • Publication number: 20170048508
    Abstract: The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.
    Type: Application
    Filed: October 27, 2016
    Publication date: February 16, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masato NAGASAWA, Keiji HATANAKA, Kazuhiro KURISAKI
  • Patent number: 9521396
    Abstract: The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: December 13, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masato Nagasawa, Keiji Hatanaka, Kazuhiro Kurisaki
  • Publication number: 20160007006
    Abstract: The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.
    Type: Application
    Filed: September 10, 2015
    Publication date: January 7, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masato NAGASAWA, Keiji HATANAKA, Kazuhiro KURISAKI
  • Patent number: 9179123
    Abstract: The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: November 3, 2015
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masato Nagasawa, Keiji Hatanaka, Kazuhiro Kurisaki
  • Patent number: 9167227
    Abstract: The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: October 20, 2015
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masato Nagasawa, Keiji Hatanaka, Kazuhiro Kurisaki
  • Publication number: 20140176675
    Abstract: The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.
    Type: Application
    Filed: February 27, 2014
    Publication date: June 26, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masato NAGASAWA, Keiji HATANAKA, Kazuhiro KURISAKI
  • Publication number: 20120315022
    Abstract: The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.
    Type: Application
    Filed: July 13, 2012
    Publication date: December 13, 2012
    Inventors: Masato Nagasawa, Keiji Hatanaka, Kazuhiro Kurisaki
  • Patent number: 8135262
    Abstract: An apparatus and method for programming the recording of broadcast programs, for programming recording by setting the recording start time and the recording end time of a given program in the broadcast program information is provided, wherein the apparatus and method for programming the recording of broadcast programs, delays the recording end time of programmed broadcast program, when a broadcast program is present in which an extension keyword is detected by searching electronic program guide information acquired regarding broadcast programs to be programmed, and electronic program guide information acquired regarding programs scheduled to be broadcast on the same channel and the same date as and prior to the programmed broadcast program, for predetermined extension keywords indicating program extension or delay.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: March 13, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshiaki Kusunoki, Keiji Hatanaka
  • Publication number: 20090142041
    Abstract: An object of the present invention is to provide a stereoscopic video recording method, a stereoscopic video recording medium, a stereoscopic video reproducing method, a stereoscopic video recording apparatus, and a stereoscopic video reproducing apparatus that are capable of more optimally performing recording and reproduction of stereoscopic video. According to one solving means of the present invention, a stereoscopic video recording method records, in a recording medium, stereoscopic video including left-eye images (2) and right-eye images (1) utilizing parallax information, by using a stereoscopic video recording apparatus (6). From video content that contains stereoscopic images, the method grasps the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs.
    Type: Application
    Filed: May 15, 2008
    Publication date: June 4, 2009
    Inventors: Masato Nagasawa, Keiji Hatanaka, Kazuhiro Kurisaki
  • Publication number: 20070201822
    Abstract: A recommended program extracting apparatus that finds a number of a program(s) for each component (such as DRAMA or VARIETY) of the genre, the program(s) being included in the record history information (S103 and S104), determines a number of an assigned program(s) regarding a recommended program(s) for each component of the genre in accordance with the number of the program(s) for each component of the genre (S108), and extracts the recommended program(s) from programs included in the scheduled broadcast program information in such a way that the number of the recommended program(s) is within a range of the number of the assigned program(s) for each component of the genre (S109 to S114).
    Type: Application
    Filed: October 19, 2005
    Publication date: August 30, 2007
    Inventors: Yoshiaki Kusunoki, Keiji Hatanaka
  • Publication number: 20070172196
    Abstract: An apparatus and method for programming the recording of broadcast programs, for programming recording by setting the recording start time and the recording end time of a given program in the broadcast program information is provided, wherein the apparatus and method for programming the recording of broadcast programs, delays the recording end time of programmed broadcast program, when a broadcast program is present in which an extension keyword is detected by searching electronic program guide information acquired regarding broadcast programs to be programmed, and electronic program guide information acquired regarding programs scheduled to be broadcast on the same channel and the same date as and prior to the programmed broadcast program, for predetermined extension keywords indicating program extension or delay.
    Type: Application
    Filed: February 10, 2005
    Publication date: July 26, 2007
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshiaki Kusunoki, Keiji Hatanaka
  • Patent number: 5654843
    Abstract: In a method for performing magnetic recording and reproducing an apparatus is used which includes a magnetic head carried by a piezo-electric movable element, the position of the magnetic head is detected such that reproduction signals are maximized within the range of transverse movement of the magnetic head, i.e., the range of less than 1/3 of the track width is detected. Their corresponding pattern signals are inputted as renewed successively. The result of this method is that a good reproduction image can be obtained even from a magnetic tape having locally different record levels, following any track curvature change with time, without deteriorating the quality of image during reproduction.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: August 5, 1997
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Keiji Hatanaka
  • Patent number: 5638407
    Abstract: An inversion prevention device to prevent inversion and provide the best S/N ratio detects a point where the zero crossing is missing from a quantized FM signal. An output is provided by switching between the digital FM signal and the output signal of at least one sideband suppression filter based on a result of the inversion detection. Alternatively, an output is provided by switching between the digital FM signal and a specified value based on a result of the inversion detection. As a further alternative, an output is provided by switching between the digital FM signal, the output signal of a low-sideband emphasis filter and the output signal of a sideband suppression filter based on a result of the inversion detection.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: June 10, 1997
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Keiji Hatanaka, Yoshiyuki Shirasaki
  • Patent number: 5546191
    Abstract: In program retrieval using a magnetic tape in which programs are classified by index signals recorded on the tape, an image at the beginning of each program is displayed in a list on a multi-screen, and a desired program is directly selected using a count value of index signals. In recording, an index signal is recorded at a starting point of recording. When preparing a multi-screen at the time of reproducing, an image reproduced a predetermined time after detection of an index signal is reduced and stored in a memory.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: August 13, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Taketoshi Hibi, Kenji Maeno, Kihei Ido, Ken Onishi, Shinobu Ueda, Akiyoshi Hirano, Keiji Hatanaka, Takashi Shiroshita
  • Patent number: 5185679
    Abstract: An FM signal which is partly missing zero crossing points is supplied to an input terminal, to which a second polarity discriminating circuit and a lower side band suppressing circuit followed by a first polarity discriminating circuit are coupled together. A pulse extracting circuit receives the outputs of the first polarity discriminating circuit and a second polarity discriminating circuit to produce pulses corresponding only to portions of the FM signal at which the zero crossing points are absent. The pulses thus obtained are subsequently combined in a waveform reforming circuits with the FM signal from the input terminal, thereby permitting the FM signal to regain the zero crossing points.
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: February 9, 1993
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hidetoshi Mishima, Keiji Hatanaka