Patents by Inventor Hideyuki Hara

Hideyuki Hara 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: 10809817
    Abstract: An active stylus is provided, which can reduce battery power consumption and reduce the time required for its signal transmission. A position detection device includes a tablet and the stylus having a built-in power source, which are capable of bi-directional transmission and reception of signals through capacitive coupling therebetween. The tablet is configured to transmit a trigger signal US_trg and then transmit a command signal US_cmd to the stylus. The trigger signal US_trg causes the stylus to start its command information receiver to receive the command signal US_cmd including information for controlling the stylus.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: October 20, 2020
    Assignee: Wacom Co., Ltd.
    Inventors: Yuji Katsurahira, Hideyuki Hara
  • Patent number: 10802610
    Abstract: A position pointer includes a signal generation circuit, which generates at least one signal. The position pointer in operation transmits the at least one signal to a sensor of a position detector. The position pointer includes a first electrode arranged to protrude from one end portion of a pen-shaped housing along an axial center direction and a second electrode including at least three electrode pieces disposed near the first electrode in such a manner as to surround a central axis of the housing. The at least three electrode pieces are electrically isolated from each other. The position pointer has a signal supply control circuit, which, in operation, controls supply of signals to selectively supply the at least one signal to the second electrode that includes the at least three electrode pieces and to the first electrode.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: October 13, 2020
    Assignee: Wacom Co., Ltd.
    Inventors: Hiroshi Munakata, Takashi Suzuki, Hideyuki Hara, Yoshihisa Sugiyama
  • Patent number: 10795402
    Abstract: A low-power-consumption, noise-immune analog circuit for a position indicator is provided. The analog circuit provided by the present disclosure is connected to an electrode that receives a control signal by capacitive coupling, and includes an edge detection circuit and a waveform restoration circuit. The edge detection circuit detects rising and falling edges of the control signal received by the electrode. The waveform restoration circuit restores the waveform of the control signal in accordance with the rising and falling edges detected by the edge detection circuit.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: October 6, 2020
    Assignee: Wacom Co., Ltd.
    Inventors: Yuji Katsurahira, Takeshi Koike, Hideyuki Hara
  • Patent number: 10768748
    Abstract: A position indicator includes a housing and circuitry. The circuitry transmits a plurality of signal blocks successively to a position detecting device. Each of the signal blocks includes a position detection signal, a first modulated signal acquired by modulating one part of a plurality of divided parts of position indicator identification information, and a second modulated signal acquired by modulating current position indicator status information acquired successively from a signal supplied to a control terminal or from a voltage state of the control terminal. The position indicator transmits the plurality of divided parts of position indicator identification information by transmitting the plurality of signal blocks.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: September 8, 2020
    Assignee: Wacom Co., Ltd.
    Inventor: Hideyuki Hara
  • Patent number: 10754448
    Abstract: An electronic stylus includes a hollow cylindrical casing having an opening defined in an axial end portion thereof, a core body mounted in the casing and having an axial end portion projecting out of the opening, and a core body protector covering and accommodating therein the axial end portion of the core body, and protecting the core body. The casing has, adjacent to the opening, an abutment surface lying in a direction transverse to an axial direction of the casing and an inner wall surface extending in the axial direction of the casing. The core body protector has a first surface facing the abutment surface of the casing and a second surface facing the inner wall surface of the casing.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: August 25, 2020
    Assignee: Wacom Co., Ltd.
    Inventors: Kuan-her Chiu, Ming-shen Sun, Shinya Aoki, Hideyuki Hara
  • Patent number: 10732735
    Abstract: A controller of an in-cell type liquid crystal display device is provided. The controller controls first and second electrodes that intersect each other, supplies a pixel driving voltage to the first electrodes during a pixel driving period, and detects a stylus position using the first and second electrodes during a stylus detection period different from the pixel driving period. The controller transmits, using the second electrodes, a command requesting a transmission of a downlink signal to the stylus. The controller detects, using the first and second electrodes, the downlink signal transmitted from the stylus in response to the command, and detects the stylus position based on the detected downlink signal.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: August 4, 2020
    Assignee: Wacom Co., Ltd.
    Inventors: Hideyuki Hara, Sadao Yamamoto, Shunya Saito
  • Publication number: 20200225779
    Abstract: A position indicator has a pen-like appearance and interacts capacitively with a sensor of a position detection apparatus. The position indicator includes: a housing; a first electrode and a second electrode that are arranged at one end of the housing in an axial center direction thereof, wherein the second electrode encircles the first electrode, and first electrode is partially exposed from the housing in the axial center direction of the housing; and a signal transmission control circuit that supplies at least the first electrode with a first signal, wherein the first electrode outputs the first signal to interact capacitively with the sensor. The signal transmission control circuit is further configured to cause the second electrode to output a second signal that cancels out the first signal output from the first electrode.
    Type: Application
    Filed: March 24, 2020
    Publication date: July 16, 2020
    Inventors: Yuji KATSURAHIRA, Hideyuki HARA
  • Publication number: 20200174589
    Abstract: An active pen that is used together with a sensor controller includes: an electrode provided at a pen tip, a memory that stores identification data, and a processor connected to the electrode and the memory. The processor returns, as a response to a first uplink signal transmitted from the sensor controller, a response signal including the identification data stored by the memory, and decides, based on whether data corresponding to the identification data is included in a second uplink signal received after the response signal is transmitted, whether the active pen is detected by the sensor controller.
    Type: Application
    Filed: February 5, 2020
    Publication date: June 4, 2020
    Inventors: Hideyuki HARA, Masayuki MIYAMOTO, Sadao YAMAMOTO
  • Publication number: 20200156696
    Abstract: The device has motor housing side annular engagement portion 40 formed at outer circumferential surface of end surface portion of motor housing 11 which is opposite side to output shaft portion of rotation shaft of electric motor; and metal cover side annular engagement portion 38 formed at opening end 37 of metal cover 12 that covers electronic control unit and engaged with motor housing side annular engagement portion 40. Fixing region is formed by fixing metal cover side annular engagement portion 38 to motor housing side annular engagement portion 40 in a fixing manner without using any fixing screw in a state in which metal cover side annular engagement portion 38 is engaged with motor housing side annular engagement portion 40. Sealing region is formed between fixing region and opening end 37 of the metal cover 12 with liquid sealant 41 applied between fixing region and opening end 37.
    Type: Application
    Filed: March 7, 2018
    Publication date: May 21, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Hideyuki HARA, Haruaki MOTODA, Kazuhiko NAKANO, Katsumasa HAGIWARA, Tetsuro TATEYAMA
  • Publication number: 20200142541
    Abstract: A position detecting sensor includes a plurality of first electrodes arranged in a first direction; and a plurality of second electrodes arranged in a second direction intersecting the first direction. The plurality of first electrodes and the plurality of second electrodes are formed in a mesh form. One or both of: (i) a width of each of the plurality of first electrodes in an arrangement direction of the plurality of first electrodes is different from a width of each of the plurality of second electrodes in an arrangement direction of the plurality of second electrodes, and (ii) a mesh density of each of the plurality of first electrodes is different from a mesh density of each of the plurality of second electrodes.
    Type: Application
    Filed: November 8, 2019
    Publication date: May 7, 2020
    Inventors: Yoichi MIURA, Hideyuki HARA
  • Publication number: 20200125186
    Abstract: An active stylus includes a signal processing section. The signal processing section during operation in a first mode, while supplying a downlink signal DS1, obtained by modulating a pulse train signal with a pen pressure level P, to an electrode, determines whether it is necessary to switch to a second mode. The signal processing section during operation in the second mode, while supplying a downlink signal DS2, obtained by modulating a sine wave signal with the pen pressure level P, to the electrode, determines whether it is necessary to switch to the first mode. The signal processing section switches to operation in the second mode when determining that such is necessary, and switches to operation in the first mode when determining that such is necessary. The active stylus may be used with two position detection devices, one supporting only the first method and the other supporting only the second method.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 23, 2020
    Inventors: Hideyuki Hara, Nobutaka Ide, Yasuo Oda
  • Patent number: 10606424
    Abstract: The invention allows size reduction of a sensor of a position detecting device of a capacitive system, which detects a position indicated by an indicator. The sensor has plural electrode conductors that are disposed adjacent to each other and are configured to receive a signal from the indicator on a first surface of a substrate having the first surface and a second surface opposed to each other. The position detecting device includes a signal processing circuit including a differential amplifier circuit that calculates a difference between signals from at least two of the plural electrode conductors. Plural connecting lines are formed on the second surface of the substrate. The plural connecting lines each have one end connected to one of the plural electrode conductors disposed on the first surface by a through-hole or a via formed through the substrate, and the other end connected to a line-concentrated part.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: March 31, 2020
    Assignee: Wacom Co., Ltd.
    Inventor: Hideyuki Hara
  • Patent number: 10579183
    Abstract: A touch panel has a plurality of conductors arranged for a position detection area and can detect a position pointed to by an active stylus held by a user and a manual touch by the user holding the active stylus. The touch panel includes: a signal transmission circuit that transmits, by capacitive coupling, a signal to the active stylus that can receive the signal transmitted from the touch panel by capacitive coupling with the touch panel; an active stylus pointing position detection circuit that detects the position pointed to by the active stylus by capacitive coupling with the active stylus; a touch detection circuit that detects the manual touch by the user; and a coupling control circuit that performs coupling control to couple one or more of the plurality of conductors and a ground of the touch panel in accordance with a touch detection result of the touch detection circuit.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: March 3, 2020
    Assignee: Wacom Co., Ltd.
    Inventors: Hideyuki Hara, Sadao Yamamoto, Susumu Yamada
  • Publication number: 20200057512
    Abstract: A stylus is provided, which includes a core body, an electrode disposed adjacent to the core body, a transmitter that sends a downlink signal including switch information SW1 using the electrode, and a controller that determines whether the stylus is in contact state with an operating surface or the stylus is in hover state. In the contact state, the controller controls the transmitter to send the switch information SW1 at a first bit rate. In the hover state, the controller controls the transmitter to send the switch information SW1 at a second bit rate smaller than the first bit rate. A technical advantage includes lowering the possibility of a failure to receive downlink signals when the stylus is in hover state, even though the stylus sends the downlink signals with the same intensity as when the stylus is in contact state.
    Type: Application
    Filed: October 28, 2019
    Publication date: February 20, 2020
    Inventor: Hideyuki Hara
  • Publication number: 20200042106
    Abstract: A method in a system including an active stylus and a display controller that detects the active stylus and that drives a display device. The detection method includes: transmitting, by the active stylus, a first packet including a plurality of bit values during a first display frame; retransmitting, by the active stylus, the first packet during the first display frame; driving, by the display controller, the display device to display a first part of a plurality of pixel data configuring the first display frame during a first display driving period; receiving, by the display controller, the first packet during a blanking period following the first display driving period; and driving, by the display controller, the display device to display a second part of the plurality of pixel data configuring the first display frame during a second display driving period following the blanking period.
    Type: Application
    Filed: July 9, 2019
    Publication date: February 6, 2020
    Inventors: Haruhiko Hisano, Hideyuki Hara
  • Patent number: 10514785
    Abstract: An active stylus includes a signal processing section. The signal processing section during operation in a first mode, while supplying a downlink signal DS1, obtained by modulating a pulse train signal with a pen pressure level P, to an electrode, determines whether it is necessary to switch to a second mode. The signal processing section during operation in the second mode, while supplying a downlink signal DS2, obtained by modulating a sine wave signal with the pen pressure level P, to the electrode, determines whether it is necessary to switch to the first mode. The signal processing section switches to operation in the second mode when determining that such is necessary, and switches to operation in the first mode when determining that such is necessary. The active stylus may be used with two position detection devices, one supporting only the first method and the other supporting only the second method.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: December 24, 2019
    Assignee: Wacom Co., Ltd.
    Inventors: Hideyuki Hara, Nobutaka Ide, Yasuo Oda
  • Publication number: 20190384423
    Abstract: An active stylus includes a signal processing section. The signal processing section during operation in a first mode, while supplying a downlink signal DS1, obtained by modulating a pulse train signal with a pen pressure level P, to an electrode, determines whether it is necessary to switch to a second mode. The signal processing section during operation in the second mode, while supplying a downlink signal DS2, obtained by modulating a sine wave signal with the pen pressure level P, to the electrode, determines whether it is necessary to switch to the first mode. The signal processing section switches to operation in the second mode when determining that such is necessary, and switches to operation in the first mode when determining that such is necessary. The active stylus may be used with two position detection devices, one supporting only the first method and the other supporting only the second method.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 19, 2019
    Inventors: Hideyuki Hara, Nobutaka Ide, Yasuo Oda
  • Publication number: 20190346970
    Abstract: A method carried out in a system having an active stylus and a sensor controller includes establishing frame synchronization between the controller and the stylus, selecting a first variable-length command from among multiple variable-length commands each including data of a variable number of bits, transmitting the first command in a first portion of a frame using an uplink signal having a variable time length that depends on a number of bits of the first command, receiving the uplink signal having the variable time length, detecting the first command by decoding the uplink signal up to a tail of the uplink signal, and transmitting a downlink signal that depends on the first command in a second portion of the first frame that is different from the first portion of the first frame.
    Type: Application
    Filed: July 24, 2019
    Publication date: November 14, 2019
    Inventors: Sadao Yamamoto, Hideyuki Hara
  • Patent number: 10459540
    Abstract: A stylus is provided, which includes a core body, an electrode disposed adjacent to the core body, a transmitter that sends a downlink signal including switch information SW1 using the electrode, and a controller that determines whether the stylus is in contact state with an operating surface or the stylus is in hover state. In the contact state, the controller controls the transmitter to send the switch information SW1 at a first bit rate. In the hover state, the controller controls the transmitter to send the switch information SW1 at a second bit rate smaller than the first bit rate. A technical advantage includes lowering the possibility of a failure to receive downlink signals when the stylus is in hover state, even though the stylus sends the downlink signals with the same intensity as when the stylus is in contact state.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: October 29, 2019
    Assignee: WACOM CO., LTD.
    Inventor: Hideyuki Hara
  • Patent number: 10447184
    Abstract: Provided is a rotating electrical machine in which torque ripple can be decreased at the time of one-side electrical current supply. A motor includes a stator coil constituted by concentrated windings arranged to teeth where an integer N?2. The stator coil includes first and second winding units and each of which is constituted by windings and which are independent from each other, the windings constituting the first winding unit are arranged in three teeth groups, each of which includes adjacent teeth and which are provided at 120-degree pitches in terms of mechanical angle, and the windings constituting the second winding unit are arranged in teeth which are the teeth not included in the three teeth groups. That is, the windings constituting the second winding unit are also arranged in three teeth groups, which are provided at 120-degree pitches in terms of mechanical angle.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: October 15, 2019
    Assignee: Hitachi Automotive Systems Engineering, Ltd.
    Inventors: Hiroshi Kanazawa, Kenji Nakayama, Hideyuki Hara