Patents by Inventor Narihira Takemura

Narihira Takemura 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: 20200382129
    Abstract: The semiconductor device according to this disclosure includes an analog input terminal, an amplifier circuit, a sample-and-hold circuit, an analog input switch connected between the analog input terminal and the input terminal of the amplifier circuit, a control switch connected between the output terminal of the amplifier circuit and the input terminal of the sample-and-hold circuit, a comparison circuit connected to the output terminal of the sample-and-hold circuit, an analog-to-digital converter connected to the comparator circuit, a control circuit, and a signal conversion circuit for converting the first control signal from the control circuit into a second control signal. The analog input switch is turned on during the activation level of the second control signal. The period of the activation level of the second control signal is longer than that of the first control signal to reduce a conversion error of an analog-to-digital conversion circuit.
    Type: Application
    Filed: April 3, 2020
    Publication date: December 3, 2020
    Inventors: Terunori KUBO, Narihira TAKEMURA
  • Patent number: 10819266
    Abstract: Provided are a motor angle detector for detecting a motor angle, a current detector for detecting a motor current value to drive a motor, a vehicle inclination angle detector for detecting a vehicle inclination angle, a motor control circuit for outputting a control signal to control the driving of the motor, and a storage apparatus. The storage apparatus stores data obtained by associating the motor current value, a setting value in the motor control circuit for outputting the control signal, the vehicle inclination angle, and the motor angle at a first time with each other, and the motor control circuit controls the driving of the motor on the basis of information of the motor current value and the vehicle inclination angle at a second time and the data at the first time.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: October 27, 2020
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Yusuke Yasuda, Narihira Takemura
  • Publication number: 20200264651
    Abstract: A signal processing device includes an oscillation circuit, a protection target circuit, a delay time detection circuit, and a clock control circuit. The oscillation circuit receives the frequency control signal and generates a clock signal having a frequency corresponding to the frequency control signal. According to the above-mentioned configuration, even when a delay failure due to aging occurs in the signal processing device, it is possible to prevent a malfunction.
    Type: Application
    Filed: February 6, 2020
    Publication date: August 20, 2020
    Inventors: Narihira TAKEMURA, Terunori KUBO, Tetsuo TAKAHASHI
  • Publication number: 20190074788
    Abstract: Provided are a motor angle detector for detecting a motor angle, a current detector for detecting a motor current value to drive a motor, a vehicle inclination angle detector for detecting a vehicle inclination angle, a motor control circuit for outputting a control signal to control the driving of the motor, and a storage apparatus. The storage apparatus stores data obtained by associating the motor current value, a setting value in the motor control circuit for outputting the control signal, the vehicle inclination angle, and the motor angle at a first time with each other, and the motor control circuit controls the driving of the motor on the basis of information of the motor current value and the vehicle inclination angle at a second time and the data at the first time.
    Type: Application
    Filed: July 26, 2018
    Publication date: March 7, 2019
    Inventors: Yusuke YASUDA, Narihira TAKEMURA
  • Patent number: 10224858
    Abstract: A semiconductor device includes a semiconductor chip, a lead frame and one bonding wire and the other bonding wire which couple together the semiconductor chip and the lead frame. The semiconductor chip includes one pad which is coupled to one bonding wire and to which an output signal which has been generated in the semiconductor chip is supplied, the other pad which is coupled to the other bonding wire and to which a feedback signal is supplied from the lead frame and a fault detection circuit which compares the output signal which is supplied to one pad with the feedback signal which is supplied to the other pad.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: March 5, 2019
    Assignee: Renesas Electronics Corporation
    Inventor: Narihira Takemura
  • Publication number: 20180034404
    Abstract: A semiconductor device includes a semiconductor chip, a lead frame and one bonding wire and the other bonding wire which couple together the semiconductor chip and the lead frame. The semiconductor chip includes one pad which is coupled to one bonding wire and to which an output signal which has been generated in the semiconductor chip is supplied, the other pad which is coupled to the other bonding wire and to which a feedback signal is supplied from the lead frame and a fault detection circuit which compares the output signal which is supplied to one pad with the feedback signal which is supplied to the other pad.
    Type: Application
    Filed: May 16, 2017
    Publication date: February 1, 2018
    Inventor: Narihira TAKEMURA
  • Patent number: 6947599
    Abstract: There is provided means for setting the RST insertion position comprising a restart line interval setting register 13 automatically setting the insertion position of the RST to the head of the scanning line with the least correlation between two image data for each of the interval L of the arbitrarily set scanning line and a restart interval calculation portion 5. With this structure, a reduction in the compression rate on the basis of the insertion of the RST can be avoided and a high compression rate can be attained.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: September 20, 2005
    Assignee: NEC Electronics Corporation
    Inventor: Narihira Takemura
  • Publication number: 20020006227
    Abstract: There is provided means for setting the RST insertion position comprising a restart line interval setting register 13 automatically setting the insertion position of the RST to the head of the scanning line with the least correlation between two image data for each of the interval L of the arbitrarily set scanning line and a restart interval calculation portion 5. With this structure, a reduction in the compression rate on the basis of the insertion of the RST can be avoided and a high compression rate can be attained.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 17, 2002
    Applicant: NEC Corporation
    Inventor: Narihira Takemura
  • Patent number: 6243591
    Abstract: A mobile communication system includes a base station and a mobile station. The base station transmits base station information containing transmission power information. The mobile station can control the transmission power thereof in accordance with the transmission power information in the received base station information and a reception electric field strength.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: June 5, 2001
    Assignee: NEC Corporation
    Inventor: Narihira Takemura
  • Patent number: 6188883
    Abstract: A communication restriction command code for a mobile station is added to a base station identification code transmitted from the base station. When the mobile station is positioned within an area desired to suppress electromagnetic wave signals, the base station identification code including the communication restriction command code is received to interrupt transmission or reduce transmission power to be smaller than normal transmission power to perform communication control for restricting transmission of the mobile station.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: February 13, 2001
    Assignee: NEC Corporation
    Inventor: Narihira Takemura
  • Patent number: 6163695
    Abstract: A mobile communication system and mobile communication method are capable of avoiding call-interruption while calling attention of the user who calls to be moved before entering transmission-stop zone. In the mobile communication method, it causes a base station ID to be received while retrieving all frequencies, thus judging whether or not there exists base station ID of "transmission-stop" instruction. When there is the base station ID of the "transmission-stop" instruction, it is judged that a mobile station exists in a transmission control zone, it comes into a state in which transmission is stopped, before coming into reception state. While when there is no the base station ID of the "transmission-stop" instruction, it is judged that a mobile station exists out of a transmission control zone, thus being selected a transmission destination. There is judged whether or not warning information is incorporated in base station ID of the transmission destination base station.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: December 19, 2000
    Assignee: NEC Corporation
    Inventor: Narihira Takemura