Patents by Inventor Eiji Matsuo

Eiji Matsuo 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: 10171710
    Abstract: In order to eliminate timing offset between reproduction devices when a content transmitted from a distribution device is received and reproduced by a plurality of reproduction devices, data (SCR) indicating the elapsed time from the start of the content, generated by counting clock pulses, and data (FCR) indicating a frame number generated by counting the number of frames reproduced by a decoder (54) are transmitted by the distribution device, and a clock generation unit (103) in each reproduction device is controlled so that data (STC) indicating the elapsed time and data (FTC) indicating the frame number, which are generated in the same manner by each reproduction device, match the transmitted data (SCR, FCR). Synchronization between reproduction devices can thereby be established even when, in a state in which a content is being reproduced by one reproduction device, another reproduction device subsequently connects to the distribution device.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: January 1, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Eiji Matsuo
  • Patent number: 10148474
    Abstract: A receiving device includes: a receiver that receives a signal including PPM symbols; a clock generator that generates a clock for sampling; an A/D converter that digital-converts the received signal; a reference position detector that detects a leading position of the PPM symbols based on data from the A/D converter; and a clock error detector that detects a clock error. The clock error detector includes: a pulse position detector that detects a pulse position in the PPM symbols based on data from the reference position detector and A/D converter; a position error calculator that calculates a deviation of the pulse position based on data from the reference position detector, A/D converter, and pulse position detector; and a clock error calculator that calculates the clock error based on data from the position error calculator. The receiving device varies a frequency of the clock based on data from the clock error calculator.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: December 4, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Aki Kaizu, Masataka Imao, Eiji Matsuo
  • Patent number: 9898942
    Abstract: A hanging-strap information display device is a device provided in a hanging strap (10) including a hanging band part (11) hung in a movable body in a swingable manner and a hold part (12) provided on the hanging band part, and includes a display unit (14) disposed at a position that squarely faces a passenger that grips the hold part (12), a support shaft part (13) that supports the display unit (14) on the hanging band part (11) in a rotatable manner about a rotation center line, a weight (15) provided on a lower side in a vertical direction than the rotation center line of the display unit (14), and resonance reduction members (16, 17) that is connected between the hanging band part (11) and a position away from the rotation center line of the display unit (14) and reduces resonance of the display unit (14).
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: February 20, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Aki Kaizu, Eiji Matsuo, Masashi Kamiya
  • Patent number: 9900637
    Abstract: When the communication method is switched, a reception device synchronizes an I picture of video data transmitted by a communication method before the switching and video data transmitted by a communication method after the switching with each other, and then performs the switching immediately before an I picture. A transmission device generates synchronization data, and a reception device performs synchronization with reference to the synchronization data. Video can be prevented from becoming discontinuous, when the communication method is switched.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: February 20, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventor: Eiji Matsuo
  • Patent number: 9819839
    Abstract: Audio decoding (108) is carried out in a video display device (10), and a frame number (AC) of the decoded audio is wirelessly transmitted, together with audio data, to an audio output device (20). An audio frame number (RC) is returned from the audio output device (20) to the video display device (10). The timing of video decoding (106) is controlled such that the frame number (VC) of the video decoded in the video display device (10) matches the returned audio frame number (RC). Even if it is not possible to predict the delays such as those involved with transmission from the video display device to the audio output device, and even if the delays fluctuate, it is possible to synchronize the video display with the audio output.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: November 14, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Eiji Matsuo
  • Publication number: 20170288924
    Abstract: A receiving device includes: a receiver that receives a signal including PPM symbols; a clock generator that generates a clock for sampling; an A/D converter that digital-converts the received signal; a reference position detector that detects a leading position of the PPM symbols based on data from the A/D converter; and a clock error detector that detects a clock error. The clock error detector includes: a pulse position detector that detects a pulse position in the PPM symbols based on data from the reference position detector and A/D converter; a position error calculator that calculates a deviation of the pulse position based on data from the reference position detector, A/D converter, and pulse position detector; and a clock error calculator that calculates the clock error based on data from the position error calculator. The receiving device varies a frequency of the clock based on data from the clock error calculator.
    Type: Application
    Filed: July 31, 2015
    Publication date: October 5, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Aki KAIZU, Masataka IMAO, Eiji MATSUO
  • Publication number: 20170076643
    Abstract: A hanging-strap information display device is a device provided in a hanging strap (10) including a hanging band part (11) hung in a movable body in a swingable manner and a hold part (12) provided on the hanging band part, and includes a display unit (14) disposed at a position that squarely faces a passenger that grips the hold part (12), a support shaft part (13) that supports the display unit (14) on the hanging band part (11) in a rotatable manner about a rotation center line, a weight (15) provided on a lower side in a vertical direction than the rotation center line of the display unit (14), and resonance reduction members (16, 17) that is connected between the hanging band part (11) and a position away from the rotation center line of the display unit (14) and reduces resonance of the display unit (14).
    Type: Application
    Filed: January 19, 2015
    Publication date: March 16, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Aki KAIZU, Eiji MATSUO, Masashi KAMIYA
  • Publication number: 20160295258
    Abstract: When the communication method is switched, a reception device synchronizes an I picture of video data transmitted by a communication method before the switching and video data transmitted by a communication method after the switching with each other, and then performs the switching immediately before an I picture. A transmission device generates synchronization data, and a reception device performs synchronization with reference to the synchronization data. Video can be prevented from becoming discontinuous, when the communication method is switched.
    Type: Application
    Filed: May 13, 2014
    Publication date: October 6, 2016
    Applicant: Mitsubishi Electric Corporation
    Inventor: Eiji MATSUO
  • Publication number: 20150215496
    Abstract: Audio decoding (108) is carried out in a video display device (10), and a frame number (AC) of the decoded audio is wirelessly transmitted, together with audio data, to an audio output device (20). An audio frame number (RC) is returned from the audio output device (20) to the video display device (10). The timing of video decoding (106) is controlled such that the frame number (VC) of the video decoded in the video display device (10) matches the returned audio frame number (RC). Even if it is not possible to predict the delays such as those involved with transmission from the video display device to the audio output device, and even if the delays fluctuate, it is possible to synchronize the video display with the audio output.
    Type: Application
    Filed: August 27, 2013
    Publication date: July 30, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Eiji Matsuo
  • Publication number: 20150062431
    Abstract: [Problem] In order to eliminate timing offset between reproduction devices when a content transmitted from a distribution device is received and reproduced by a plurality of reproduction devices, data (SCR) indicating the elapsed time from the start of the content, generated by counting clock pulses, and data (FCR) indicating a frame number generated by counting the number of frames reproduced by a decoder (54) are transmitted by the distribution device, and a clock generation unit (103) in each reproduction device is controlled so that data (STC) indicating the elapsed time and data (FTC) indicating the frame number, which are generated in the same manner by each reproduction device, match the transmitted data (SCR, FCR). Synchronization between reproduction devices can thereby be established even when, in a state in which a content is being reproduced by one reproduction device, another reproduction device subsequently connects to the distribution device.
    Type: Application
    Filed: March 6, 2013
    Publication date: March 5, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventor: Eiji Matsuo
  • Patent number: 8138458
    Abstract: The invention performs uniform chemical reactions with high efficiency by action of microwave onto reaction targets placed within a flow path along a center axis of a waveguide for transmission of microwave. The microwave chemical reaction device includes a circular waveguide for transmission of TM or TE mode microwave or a square waveguide for transmission of TE mode microwave and a flow path shielded from a space within the waveguide by a bulkhead of low microwave loss and coaxially extending along the center axis of the waveguide. Reaction targets to be subjected to chemical reactions are accommodated in the flow path and the microwave acts on the reaction targets within the flow path.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: March 20, 2012
    Assignee: Kabushiki Kaisha IDX
    Inventors: Tadashi Okamoto, Eiji Matsuo, Masahiro Yasuda
  • Patent number: 7620964
    Abstract: A recommended program search device includes a viewing history information acquiring block which acquires a viewing channel and a viewing time by the user for each area corresponding to a time division and stores viewing history information including the viewing channel and the viewing time that are associated with each area in the storage, a program information acquiring block which acquires scheduled broadcast program information, including program time information enabling calculation of a program start time and a program broadcast time for a scheduled broadcast program and channel information about the scheduled broadcast program, and a search block which determines a user's favorite program from the scheduled broadcast program on the basis of a result of comparison between the program time information and the channel information included in the scheduled broadcast program information and the viewing channel and the viewing time stored in the storage.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: November 17, 2009
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takayuki Kushida, Aki Kimura, Eiji Matsuo, Jun Yukawa
  • Publication number: 20090045891
    Abstract: The invention performs uniform chemical reactions with high efficiency by action of microwave onto reaction targets placed within a flow path along a center axis of a waveguide for transmission of microwave. The microwave chemical reaction device includes a circular waveguide for transmission of TM or TE mode microwave or a square waveguide for transmission of TE mode microwave and a flow path shielded from a space within the waveguide by a bulkhead of low microwave loss and coaxially extending along the center axis of the waveguide. Reaction targets to be subjected to chemical reactions are accommodated in the flow path and the microwave acts on the reaction targets within the flow path.
    Type: Application
    Filed: December 28, 2005
    Publication date: February 19, 2009
    Inventors: Tadashi Okamoto, Eiji Matsuo, Masahiro Yasuda
  • Publication number: 20070174862
    Abstract: A recommended program search device includes a viewing history information acquiring block which acquires a viewing channel and a viewing time by the user for each area corresponding to a time division and stores viewing history information including the viewing channel and the viewing time that are associated with each area in the storage, a program information acquiring block which acquires scheduled broadcast program information, including program time information enabling calculation of a program start time and a program broadcast time for a scheduled broadcast program and channel information about the scheduled broadcast program, and a search block which determines a user's favorite program from the scheduled broadcast program on the basis of a result of comparison between the program time information and the channel information included in the scheduled broadcast program information and the viewing channel and the viewing time stored in the storage.
    Type: Application
    Filed: December 22, 2006
    Publication date: July 26, 2007
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takayuki Kushida, Aki Kimura, Eiji Matsuo, Jun Yukawa
  • Patent number: 6633547
    Abstract: A method for transmitting command and control information between at least two nodes of an IEEE 1394 based home entertainment network, includes dynamically generating a node navigation tree, transmitting the node navigation tree to a video display unit, receiving a node navigation input identifying a particular node in the node navigation tree, modifying a subset of the node navigation tree based on the node navigation input, transmitting the modified subset of the node navigation tree to the video display unit, generating a node function list including one or more functions pertaining to the identified node, transmitting the node function list to the video display unit, receiving a node function input corresponding to a particular node function in the node function list, and transmitting a command to the identified node based on the node function input.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: October 14, 2003
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Shinji Akatsu, Fernando Masami Matsubara, Eiji Matsuo, Shin Miura
  • Patent number: 5554980
    Abstract: A remote control system includes a remote control unit and a controlled unit. The remote control unit is moved in space, and includes a movement detector, selection switch and transmitter. The movement detector detects movement of the remote control unit. The transmitter transmits output of the movement detector and the selection switch. The controlled unit includes a display device, receiver, and controller. The display device includes a display screen, and displays a cursor and icons on the display screen. The receiver receives the output of the movement detector and the selection switch transmitted by the transmitter. The controller moves the cursor across the display screen in accordance with the output of the movement detector and the selection switch.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: September 10, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Koosuke Hashimoto, Eiji Matsuo, Hisashi Kawagoe, Hiroaki Iwaasa
  • Patent number: 5500926
    Abstract: After separating the moving and fixed parts of a mechanism conceptual view, the apparatus moves and/or rotates the movable parts. The movable and fixed parts are synthesized and dynamically displayed to illustrate the motion of the machine represented by the mechanism conceptual view. Symbols arranged at different angles in a selection area of a display are used to create the mechanism conceptual view, and a coding device in the apparatus codes the mechanism conceptual view for transmission over a telephone line.
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: March 19, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Eiji Matsuo, Yoshinori Kakuta
  • Patent number: 5430837
    Abstract: An apparatus and method for creating conceptional drawings for explaining the operation of a machine displays operation symbols corresponding to elements of the machine, selects predetermined symbols and arranges the selected symbols, connects the symbols with segments in a manner corresponding to the form of the machine, adds operation symbols for indicating the operation directions of the symbolized elements, and forms a conceptional view for explaining the operation of the machine. The apparatus may include a memory unit, an auxiliary memory unit, a display, a drawing formation unit and an input unit.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: July 4, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Eiji Matsuo
  • Patent number: 5426728
    Abstract: A mechanism conceptional drawing transformation method for transforming a form view of a mechanical structure into a mechanism conceptional view including mechanical operations and power transmission paths so as to understand the operations in a short time. The mechanical operations and the power transmission paths in the form view are recognized and are further decomposed into a plurality of grouped blocks. In every block, components are symbolized and are transformed into predetermined conceptional symbols in advance, and then these conceptional symbols are connected with segments. Thus the obtained conceptional view line connection view is expressed as a perspective view, and operational symbols for exhibiting the entire power transmission paths are added to the perspective view.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: June 20, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Eiji Matsuo