Patents by Inventor Yukimitsu Yamada

Yukimitsu Yamada 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: 11926285
    Abstract: A remote communication system includes a portable device; and a fixed system. The fixed system includes main communication modules; and a position estimating unit configured to estimate a position of the portable device, based on an incident angle of a signal from the portable device, upon detecting the signal by antennas provided in the main communication modules. When there are two main communication modules for which the incident angle is known, the position of the portable device is estimated based on the incident angle. When there is one main communication module for which the incident angle is known, the position of the portable device is estimated based on the incident angle and a received radio wave intensity of the signal. When there is no main communication module for which the incident angle is known, the position of the portable device is estimated based on the received radio wave intensity.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: March 12, 2024
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Yoshihisa Kishimoto, Keigo Wakana, Daisuke Takai, Yukimitsu Yamada, Mitsuharu Nakasato, Kazuma Sato
  • Publication number: 20240036652
    Abstract: A sensory control method includes a step of receiving, a step of converting, and a step of outputting. In the step of receiving, a sensitivity parameter is received. In the step of converting, the received sensitivity parameter is converted into, among a plurality of physical parameters included in physical properties relating to a sensory presentation, a physical parameter correlated with the sensitivity parameter. In the step of outputting, a sensory presentation signal based on the physical parameter obtained as a result of the conversion is output.
    Type: Application
    Filed: October 3, 2023
    Publication date: February 1, 2024
    Inventors: Yukimitsu YAMADA, Takeshi SHIRASAKA, Munemitsu ABE, Hisato SHIMOMURA, Takashi UENOMACHI, Akihisa ITOH, Toshio KAWANO, Naoki ITO, Kenichiro SAMESHIMA, Hideo KAWASE, Shota TAKEUCHI
  • Patent number: 11851919
    Abstract: A door handle includes a door handle case and an electrostatic sensor provided in the door handle case. The electrostatic sensor includes a detection electrode that is formed of a flat conductor plate, or that is formed on a surface of a flat substrate or within a flat substrate. The detection electrode includes a middle portion in a longitudinal direction of the detection electrode and includes peripheral portions proximal to both end portions of the detection electrode in the longitudinal direction. For a width of the detection electrode in a direction perpendicular to the longitudinal direction, each peripheral portion is wider than the middle portion, and the width of the detection electrode gradually increases toward each end portion in the longitudinal direction.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: December 26, 2023
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Toshiki Nakamura, Takashi Sasaki, Yoshiyuki Kikuchi, Yuzuru Kawana, Heishiro Fudo, Yukimitsu Yamada, Hiroshi Shigetaka
  • Publication number: 20220368580
    Abstract: In order to provide a receiver capable of accurately determining a phase difference of I/Q signals, a receiver includes a section detector configured to detect a section between a rising and a falling of a phase based on the rising and the falling of the phase represented by I/Q signals generated based on an advertisement packet transmitted from a transmitter, and a section setting unit configured to identify, within the section between the rising and the falling of the phase, a period in which a first variation amount of the phase is equal to or less than a first predetermined amount, and use the identified period as a section for detecting the phase of the I/Q signals. The section detector detects the rising when a first phase is smaller than a last phase among a plurality of phases acquired by sampling the phases.
    Type: Application
    Filed: August 1, 2022
    Publication date: November 17, 2022
    Inventors: Yukimitsu YAMADA, Daisuke TAKAI, Mitsunobu INOUE
  • Patent number: 11492823
    Abstract: A door handle includes door handle case, a first detection electrode and a second detection electrode disposed in the door handle case, and a controller connected to the first detection electrode and the second detection electrode. The controller separately measures a first capacitance between the first detection electrode and an operation body and a second capacitance between the second detection electrode and the operation body, and the controller determines whether a locking operation is performed by the operation body based on one or both of the first capacitance and the second capacitance.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: November 8, 2022
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Toshiki Nakamura, Takashi Sasaki, Yoshiyuki Kikuchi, Yuzuru Kawana, Yukimitsu Yamada, Daisuke Takai, Heishiro Fudo
  • Publication number: 20220294425
    Abstract: A filter circuit includes a processor configured to compare a current input value with a last-time output value, add a first correction value to the current input value and to the last-time output value if a comparison result between the current input value and the last-time output value is greater than a predetermined value, and add a second correction value smaller than the first correction value to the current input value and to the last-time output value if the comparison result is smaller than or equal to the predetermined value, and calculate a current output value based on the current input value and the last-time output value to each of which the first correction value or the second correction value has been added.
    Type: Application
    Filed: May 25, 2022
    Publication date: September 15, 2022
    Inventor: Yukimitsu YAMADA
  • Publication number: 20220248310
    Abstract: A communication method includes: transmitting, by a transmitter, advertising packets having different data lengths per transmitting channel; and identifying, by a receiver, a transmitting channel of an advertising packet based on data length information contained in header information in the advertising packet, and the receiver receives remaining data in the advertising packet when the identified transmitting channel and a receiving channel match, and not receive the remaining data in the advertising packet when the identified transmitting channel and the receiving channel do not match.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 4, 2022
    Inventors: Yukimitsu Yamada, Mitsunobu Inoue
  • Publication number: 20210354662
    Abstract: A remote communication system includes a portable device; and a fixed system. The fixed system includes main communication modules; and a position estimating unit configured to estimate a position of the portable device, based on an incident angle of a signal from the portable device, upon detecting the signal by antennas provided in the main communication modules. When there are two main communication modules for which the incident angle is known, the position of the portable device is estimated based on the incident angle. When there is one main communication module for which the incident angle is known, the position of the portable device is estimated based on the incident angle and a received radio wave intensity of the signal. When there is no main communication module for which the incident angle is known, the position of the portable device is estimated based on the received radio wave intensity.
    Type: Application
    Filed: July 27, 2021
    Publication date: November 18, 2021
    Inventors: Yoshihisa KISHIMOTO, Keigo WAKANA, Daisuke TAKAI, Yukimitsu YAMADA, Mitsuharu NAKASATO, Kazuma SATO
  • Patent number: 11085801
    Abstract: A physical quantity measuring apparatus has: a plurality of physical quantity sensors of the same type, each of which detects a physical quantity at intervals of a predetermined length of time; a computing unit that calculates an output value according to physical quantities detected by the plurality of physical quantity sensors at each detection time; and a deciding unit that makes a predetermined decision according to an output value calculated about the immediately preceding detection time and to physical quantities detected by the plurality of physical quantity sensors at the current detection time. The computing unit calculates an output value at each detection time according to a decision result of the deciding unit.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: August 10, 2021
    Assignee: ALPS ALPINE CO., LTD.
    Inventor: Yukimitsu Yamada
  • Patent number: 11073594
    Abstract: A position estimating device includes a processor, and a memory storing program instructions that cause the processor to obtain a plurality of position data of a transmitter, the plurality of position data being output from respective positioning devices, calculate a density of the plurality of position data based on the plurality of obtained position data output from the respective positioning devices, the density of the plurality of position data being a value indicating how close positions indicated by the plurality of position data are, and estimate a position of the transmitter based on the plurality of position data output from the respective positioning devices and the calculated density.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: July 27, 2021
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Keigo Wakana, Yukimitsu Yamada
  • Patent number: 11029754
    Abstract: A tilt adjusting image including a captured image that is obtained by capturing a wearer wearing a spectacle-type electronic device, and a horizontal line image indicating a horizontal direction identified by a tilt identification part, is displayed. The wearer adjusts a position of the spectacle-type electronic device by a wearer's hand or the like while viewing the tilt adjusting image so that the spectacle-type electronic device becomes horizontal. When the wearer judges that the spectacle-type electronic device has become horizontal, the wearer operates an operation part and inputs a calibration instruction. When the calibration instruction is input, the calibration instruction is transmitted to the spectacle-type electronic device.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: June 8, 2021
    Assignee: ALPS ALPINE CO., LTD.
    Inventor: Yukimitsu Yamada
  • Patent number: 11006898
    Abstract: The biological information measurement apparatus includes a first signal applying unit which applies a first applying signal to electrodes at the time of the measurement of biological information, a biological information measurement unit which measures biological information based on detection signals of the electrodes at the time of the measurement of biological information, a second signal applying unit which applies a second applying signal to the electrodes at a time of detection of an attached state, and an attached state detection unit which detects an attached state based on the detection signals at the time of the detection of an attached state. At least some of the electrodes at the time of the measurement of biological information is identical with at least some of the electrodes at the time of the detection of an attached state.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: May 18, 2021
    Assignee: Alps Alpine Co., Ltd.
    Inventors: Yukimitsu Yamada, Daisuke Takai, Toshiki Nakamura
  • Publication number: 20200400775
    Abstract: A position estimating device includes a processor, and a memory storing program instructions that cause the processor to obtain a plurality of position data of a transmitter, the plurality of position data being output from respective positioning devices, calculate a density of the plurality of position data based on the plurality of obtained position data output from the respective positioning devices, the density of the plurality of position data being a value indicating how close positions indicated by the plurality of position data are, and estimate a position of the transmitter based on the plurality of position data output from the respective positioning devices and the calculated density.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 24, 2020
    Inventors: Keigo WAKANA, Yukimitsu YAMADA
  • Publication number: 20200392769
    Abstract: A door handle includes door handle case, a first detection electrode and a second detection electrode disposed in the door handle case, and a controller connected to the first detection electrode and the second detection electrode. The controller separately measures a first capacitance between the first detection electrode and an operation body and a second capacitance between the second detection electrode and the operation body, and the controller determines whether a locking operation is performed by the operation body based on one or both of the first capacitance and the second capacitance.
    Type: Application
    Filed: August 28, 2020
    Publication date: December 17, 2020
    Inventors: Toshiki NAKAMURA, Takashi SASAKI, Yoshiyuki KIKUCHI, Yuzuru KAWANA, Yukimitsu YAMADA, Daisuke TAKAI, Heishiro FUDO
  • Patent number: 10863929
    Abstract: A step count measuring apparatus that measures the step count based on a degree of acceleration is provided. The step count measuring apparatus includes a local maximum/minimum value detection unit configured to detect at least one of a local maximum value and a local minimum value of the acceleration during a predetermined time, a threshold value determination unit configured to determine a threshold value based on at least one of the local maximum value and the local minimum value detected by the local maximum/minimum value detection unit, and a step count measuring unit configured to measure the step count based on the acceleration and the threshold value that has been determined by the threshold value determination unit.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: December 15, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventor: Yukimitsu Yamada
  • Publication number: 20200331328
    Abstract: A door handle includes a door handle case and an electrostatic sensor provided in the door handle case. The electrostatic sensor includes a detection electrode that is formed of a flat conductor plate, or that is formed on a surface of a flat substrate or within a flat substrate. The detection electrode includes a middle portion in a longitudinal direction of the detection electrode and includes peripheral portions proximal to both end portions of the detection electrode in the longitudinal direction. For a width of the detection electrode in a direction perpendicular to the longitudinal direction, each peripheral portion is wider than the middle portion, and the width of the detection electrode gradually increases toward each end portion in the longitudinal direction.
    Type: Application
    Filed: July 1, 2020
    Publication date: October 22, 2020
    Inventors: Toshiki NAKAMURA, Takashi SASAKI, Yoshiyuki KIKUCHI, Yuzuru KAWANA, Heishiro FUDO, Yukimitsu YAMADA, Hiroshi SHIGETAKA
  • Patent number: 10794723
    Abstract: A walking measurement device is provided that includes a timing detection unit configured to detect an impact generation timing at which an impact resulting from a landing of a left foot or a right foot has been generated; an acceleration sensor configured to repeatedly detect, at predetermined time intervals, an acceleration in a lateral direction along which the left foot and the right foot are arranged side by side; and a first determination unit configured to determine whether the impact generation timing corresponds to a landing timing of the left foot or a landing timing of the right foot based on the impact generation timing detected by the timing detection unit and the acceleration detected by the acceleration sensor.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: October 6, 2020
    Assignees: ALPS ALPINE CO., LTD., JINS HOLDINGS Inc.
    Inventors: Yukimitsu Yamada, Susumu Nakamura, Shunsuke Shioya
  • Patent number: 10794706
    Abstract: A position detection system according to an embodiment of the present invention includes a plurality of fixed stations 20; and a sensor unit 10 including an inertial sensor that detects movement history of a mobile body 51 and a distance sensor that detects separation distances between the mobile body 51 and the fixed stations 20. A position of the mobile body 51 is determined by detecting a first arrival position P1 obtained based on the movement history, a second arrival position P2 obtained based on the separation distances, and a relative distance L1 between the first arrival position P1 and the second arrival position P2, and by comparing a range value R1 obtained based on the movement history with the relative distance L1. The range value R1 is changed based on the movement history.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: October 6, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Keigo Wakana, Yukimitsu Yamada, Daisuke Takai
  • Patent number: 10760904
    Abstract: Accelerations (Ax, Ay, Az) in directions along (X?, Y?, Z?) detected by an acceleration sensor 10 are converted, based on a correction angle ?, which is an angle between a first detection axis X? and a first posture axis X, into accelerations (Bx By, Bz) in directions along three posture axes (X, Y, Z). A pitch angle ? and a roll angle ?, which indicate a posture of a portion to which the wearable device is attached, are calculated based on the accelerations (Bx By, Bz) obtained by the conversion based on the correction angle ?.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: September 1, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Yukimitsu Yamada, Daisuke Takai
  • Patent number: 10710552
    Abstract: A smart keyless entry system having an on-vehicle apparatus installed in a vehicle and a portable device configured to communicate with the on-vehicle apparatus includes a location calculating unit configured to calculate a location of the portable device through communication between the on-vehicle apparatus and the portable device, and a vertical-position calculating unit configured to calculate a vertical position of the portable device, wherein the on-vehicle apparatus and the portable device communicate with each other under conditions adjusted in response to the calculated vertical position of the portable device, and wherein control is performed based on the calculated location of the portable device.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: July 14, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Yukimitsu Yamada, Daisuke Takai