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).

  • Publication number: 20180351482
    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: Application
    Filed: November 18, 2016
    Publication date: December 6, 2018
    Inventors: Hiroshi KANAZAWA, Kenji NAKAYAMA, Hideyuki HARA
  • Publication number: 20180329528
    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: Application
    Filed: July 20, 2018
    Publication date: November 15, 2018
    Inventors: Hideyuki Hara, Sadao Yamamoto, Shunya Saito
  • Publication number: 20180267636
    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: Application
    Filed: May 21, 2018
    Publication date: September 20, 2018
    Inventors: Kuan-her Chiu, Ming-shen Sun, Shinya Aoki, Hideyuki Hara
  • Publication number: 20180246585
    Abstract: A position detector includes a position pointer having an AC signal generation circuit that is disposed in a housing and that transmits an AC signal, and a sensor that receives the AC signal. The position detector detects the position pointed to by the position pointer on the sensor. The position pointer includes at least three electrodes electrically isolated from each other, and a control circuit that controls so that the AC signal is selectively supplied to the electrodes, and so that identification information identifying the electrode to which the AC signal is selectively supplied is generated and transmitted to the sensor. The position detector further includes a position detection circuit that detects the position based on the AC signal, and an angular information calculation circuit that calculates the rotation angle and/or the tilt angle of the position pointer based on the AC signal and the identification information.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventor: Hideyuki HARA
  • Patent number: 10061408
    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: December 18, 2017
    Date of Patent: August 28, 2018
    Assignee: Wacom Co., Ltd.
    Inventor: Hideyuki Hara
  • Patent number: 10061407
    Abstract: A stylus usable with non-in-cell type and in-cell type electronic apparatuses is provided. A stylus, in operation, transmits pen pressure data P to an electronic apparatus. The stylus includes a stylus electrode and a signal processing circuit. The stylus electrode forms a coupling capacitance with a sensor electrode of the electronic apparatus. The signal processing circuit detects an uplink signal US using the stylus electrode, extracts a command from the detected uplink signal US, determines, based on the extracted command, in which mode to operate between a first mode in which the data is transmitted using M (M?1) first periods and a second mode in which the data is transmitted using N (N>M) second periods, and repeatedly transmits the data in accordance with the determined mode.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: August 28, 2018
    Assignee: Wacom Co., Ltd.
    Inventors: Hideyuki Hara, Sadao Yamamoto, Shunya Saito
  • Patent number: 10055036
    Abstract: A method in which a sensor controller is connected to a sensor having an electrode group provided together with a display panel configured to operate in during a variable refresh cycle among a plurality of refresh cycles, and an active stylus performs bidirectional communication with the sensor controller. According to the method, the sensor controller acquires a present refresh cycle among the plurality of refresh cycles of the display panel, generates an uplink signal, which serves as a reference for synchronization corresponding to the acquired present refresh cycle, and transmits the uplink signal to the active stylus, which is not detected as yet or is detected already, at the present refresh cycle.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: August 21, 2018
    Assignee: WACOM CO., LTD.
    Inventors: Takeshi Koike, Hideyuki Hara
  • Publication number: 20180143710
    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: Application
    Filed: January 16, 2018
    Publication date: May 24, 2018
    Inventor: Hideyuki Hara
  • Publication number: 20180120962
    Abstract: A stylus usable with non-in-cell type and in-cell type electronic apparatuses is provided. A stylus, in operation, transmits pen pressure data P to an electronic apparatus. The stylus includes a stylus electrode and a signal processing circuit. The stylus electrode forms a coupling capacitance with a sensor electrode of the electronic apparatus. The signal processing circuit detects an uplink signal US using the stylus electrode, extracts a command from the detected uplink signal US, determines, based on the extracted command, in which mode to operate between a first mode in which the data is transmitted using M (M?1) first periods and a second mode in which the data is transmitted using N (N>M) second periods, and repeatedly transmits the data in accordance with the determined mode.
    Type: Application
    Filed: December 6, 2017
    Publication date: May 3, 2018
    Inventors: Hideyuki Hara, Sadao Yamamoto, Shunya Saito
  • Publication number: 20180120963
    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 in which the core body is held in contact with an operating surface or the stylus is in hover state in which the core body is not held in contact with the operating surface. In the contact state, the controller controls the transmitter to send the switch information SW1 at a first bit rate (e.g., data (E)). 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 (e.g., data (C)). 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: December 18, 2017
    Publication date: May 3, 2018
    Inventor: Hideyuki Hara
  • Publication number: 20180113523
    Abstract: A stylus capable of bidirectionally communicating with a sensor controller includes a receiver that receives an uplink signal sent by the sensor controller, a controller that determines whether a signal having a predetermined waveform is to be continuously sent over a second time period or to be continuously sent over a first time period longer than the second time period, on the basis of the uplink signal, and a transmitter that continuously sends the signal having the predetermined waveform over the first time period or the second time period on the basis of the result of determination by the controller. As a result, the sensor controller can detect a burst signal from the stylus over a wide range in a sensor touch surface, to thereby reduce the possibility that the sensor controller may fail to detect the burst signal.
    Type: Application
    Filed: December 20, 2017
    Publication date: April 26, 2018
    Inventors: Hideyuki Hara, Yoshio Nomura
  • Publication number: 20180101250
    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: Application
    Filed: December 12, 2017
    Publication date: April 12, 2018
    Inventors: Yuji Katsurahira, Hideyuki Hara
  • Publication number: 20180095495
    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: Application
    Filed: December 5, 2017
    Publication date: April 5, 2018
    Inventors: Yuji Katsurahira, Takeshi Koike, Hideyuki Hara
  • Patent number: 9910546
    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: February 20, 2015
    Date of Patent: March 6, 2018
    Assignee: Wacom Co., Ltd.
    Inventor: Hideyuki Hara
  • Publication number: 20180046272
    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: October 24, 2017
    Publication date: February 15, 2018
    Inventors: Hideyuki Hara, Nobutaka Ide, Yasuo Oda
  • Publication number: 20180024654
    Abstract: A method in which a sensor controller is connected to a sensor having an electrode group provided together with a display panel configured to operate in during a variable refresh cycle among a plurality of refresh cycles, and an active stylus performs bidirectional communication with the sensor controller. According to the method, the sensor controller acquires a present refresh cycle among the plurality of refresh cycles of the display panel, generates an uplink signal, which serves as a reference for synchronization corresponding to the acquired present refresh cycle, and transmits the uplink signal to the active stylus, which is not detected as yet or is detected already, at the present refresh cycle.
    Type: Application
    Filed: September 7, 2017
    Publication date: January 25, 2018
    Inventors: Takeshi Koike, Hideyuki Hara
  • Publication number: 20170262076
    Abstract: A position detector includes a position pointer having an AC signal generation circuit that is disposed in a housing and that transmits an AC signal, and a sensor that receives the AC signal. The position detector detects the position pointed to by the position pointer on the sensor. The position pointer includes at least three electrodes electrically isolated from each other, and a control circuit that controls so that the AC signal is selectively supplied to the electrodes, and so that identification information identifying the electrode to which the AC signal is selectively supplied is generated and transmitted to the sensor. The position detector further includes a position detection circuit that detects the position based on the AC signal, and an angular information calculation circuit that calculates the rotation angle and/or the tilt angle of the position pointer based on the AC signal and the identification information.
    Type: Application
    Filed: May 25, 2017
    Publication date: September 14, 2017
    Inventor: Hideyuki HARA
  • Publication number: 20170177145
    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: Application
    Filed: November 14, 2016
    Publication date: June 22, 2017
    Inventors: Hideyuki Hara, Sadao Yamamoto, Susumu Yamada
  • Patent number: 9665184
    Abstract: A position detector includes a position pointer having an AC signal generation circuit that is disposed in a housing and that transmits an AC signal, and a sensor that receives the AC signal. The position detector detects the position pointed to by the position pointer on the sensor. The position pointer includes at least three electrodes electrically isolated from each other, and a control circuit that controls so that the AC signal is selectively supplied to the electrodes, and so that identification information identifying the electrode to which the AC signal is selectively supplied is generated and transmitted to the sensor. The position detector further includes a position detection circuit that detects the position based on the AC signal, and an angular information calculation circuit that calculates the rotation angle and/or the tilt angle of the position pointer based on the AC signal and the identification information.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: May 30, 2017
    Assignee: Wacom Co., Ltd.
    Inventor: Hideyuki Hara
  • Publication number: 20160320918
    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: Application
    Filed: July 13, 2016
    Publication date: November 3, 2016
    Inventor: Hideyuki Hara