Patents by Inventor Masayuki Mizuno

Masayuki Mizuno 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: 9391686
    Abstract: A wireless communication system includes a first radio equipment that transmits first data using a first radio wave; a data transmitter that transmits a second radio wave, the second radio wave causing a disturbance on the first radio wave according to second data to be transmitted; and a second radio equipment that demodulates the first data transmitted from the first radio equipment, and demodulates the second data transmitted from the data transmitter using a variation in a bit error rate of communication between the first radio equipment and the second radio equipment, wherein the data transmitter includes a first antenna that receives the first radio wave; an input amplifier that amplifies a signal corresponding to the first radio wave received by the first antenna; and an oscillator that is supplied with an output from the input amplifier, and oscillates at the same frequency as that of the first radio wave.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: July 12, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Hidetoshi Ikeda, Masayuki Mizuno, Haruya Ishizaki
  • Publication number: 20160134350
    Abstract: A wireless communication system includes a first radio equipment that transmits first data using a first radio wave; a data transmitter that transmits a second radio wave, the second radio wave causing a disturbance on the first radio wave according to second data to be transmitted; and a second radio equipment that demodulates the first data transmitted from the first radio equipment, and demodulates the second data transmitted from the data transmitter using a variation in a bit error rate of communication between the first radio equipment and the second radio equipment, wherein the data transmitter includes a first antenna that receives the first radio wave; an input amplifier that amplifies a signal corresponding to the first radio wave received by the first antenna; and an oscillator that is supplied with an output from the input amplifier, and oscillates at the same frequency as that of the first radio wave.
    Type: Application
    Filed: January 19, 2016
    Publication date: May 12, 2016
    Inventors: Hidetoshi Ikeda, Masayuki Mizuno, Haruya lshizaki
  • Patent number: 9287968
    Abstract: A wireless communication system according to an embodiment includes a first radio equipment that transmits first data using first radio waves, a data transmitter that transmits a second radio wave for causing a disturbance on the first radio wave according to second data, and a second radio equipment that modulates the first data transmitted from the first radio equipment, and modulates the second data transmitted from the data transmitter using a variation in a bit error rate of communication between the first radio equipment and the second radio equipment. The data transmitter includes an amplifier that amplifies a signal corresponding to the first radio wave received by a first antenna, and a feedback element that feedbacks a signal from an output node of the amplifier to an input node of the amplifier, and forms a feedback loop.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: March 15, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Hidetoshi Ikeda, Masayuki Mizuno, Haruya Ishizaki
  • Patent number: 9183422
    Abstract: Provided is a wireless communication system including a first radio equipment that transmits first data using first radio waves, a data transmitter that outputs a second radio wave generated by modulating the first radio wave according to second data to be transmitted, and a second radio equipment that receives the first radio wave and the second radio wave, and separates and demodulates the first data transmitted from the first radio equipment and the second data transmitted from the data transmitter contained in the received radio waves.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: November 10, 2015
    Assignee: Renesas Electronics Corporation
    Inventors: Haruya Ishizaki, Masayuki Mizuno
  • Publication number: 20150057038
    Abstract: A wireless communication system according to an embodiment includes a first radio equipment that transmits first data using first radio waves, a data transmitter that transmits a second radio wave for causing a disturbance on the first radio wave according to second data, and a second radio equipment that modulates the first data transmitted from the first radio equipment, and modulates the second data transmitted from the data transmitter using a variation in a bit error rate of communication between the first radio equipment and the second radio equipment. The data transmitter includes an amplifier that amplifies a signal corresponding to the first radio wave received by a first antenna, and a feedback element that feedbacks a signal from an output node of the amplifier to an input node of the amplifier, and forms a feedback loop.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 26, 2015
    Inventors: Hidetoshi Ikeda, Masayuki Mizuno, Haruya Ishizaki
  • Publication number: 20150038088
    Abstract: Disclosed is a radio communication system capable of reducing the cost for introducing a system utilizing RFID technology into a radio network environment. A radio communication system pertaining to the present invention includes a first radio equipment that transmits first data using a first radio wave; a data transmitter that outputs a second radio wave generated by modulating the first radio wave depending on second data which is an object for transmission; and a second radio equipment that receives the first and second radio waves and includes a separation and demodulation circuit that separates and demodulates the first data transmitted from the first radio equipment and the second data transmitted from the data transmitter included in the received radio waves. The data transmitter includes an amplifier for generating the second radio wave by amplifying the first radio wave.
    Type: Application
    Filed: October 21, 2014
    Publication date: February 5, 2015
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Haruya ISHIZAKI, Masayuki MIZUNO
  • Patent number: 8891413
    Abstract: Disclosed is a radio communication system capable of reducing the cost for introducing a system utilizing RFID technology into a radio network environment. A radio communication system pertaining to the present invention includes a first radio equipment that transmits first data using a first radio wave; a data transmitter that outputs a second radio wave generated by modulating the first radio wave depending on second data which is an object for transmission; and a second radio equipment that receives the first and second radio waves and includes a separation and demodulation circuit that separates and demodulates the first data transmitted from the first radio equipment and the second data transmitted from the data transmitter included in the received radio waves. The data transmitter includes an amplifier for generating the second radio wave by amplifying the first radio wave.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: November 18, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Haruya Ishizaki, Masayuki Mizuno
  • Patent number: 8862934
    Abstract: A redundant computing system is composed of two systems: a first arithmetic processing unit (A-system) and a second arithmetic processing unit (B-system) having the same functions. A diagnosis control unit performs diagnosis of one system while the other system is performing arithmetic processing operation. The diagnosis control unit controls the input to the first and second arithmetic processing units by way of an input control unit according to the diagnosis operation, and an output control unit controls the output from the first and second arithmetic processing units according to the diagnosis result. After termination of the diagnosis, a value is copied from a storage unit of the system which has not been diagnosed to a storage unit of the system which has been diagnosed, and the redundant computing system resumes the redundant operation.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: October 14, 2014
    Assignee: NEC Corporation
    Inventors: Yoshio Kameda, Masayuki Mizuno
  • Patent number: 8674774
    Abstract: There is provided an aging diagnostic device including: a reference ring oscillator (101) that constitutes a ring oscillator using an odd-numbered plurality of logic gates constituted using a CMOS circuit; a test ring oscillator (102) that constitutes a ring oscillator using an odd-numbered plurality of logic gates having the same configuration as that of the logic gate; a load unit (104) that inputs a load signal to the test ring oscillator (102); a control unit (105) that simultaneously inputs a control signal instructing a start of oscillation of the reference ring oscillator (101) and the test ring oscillator (102) to the reference ring oscillator (101) and the test ring oscillator (102); and a comparison unit (103) that compares differences in the amount of movement of pulses within the reference ring oscillator (101) and the test ring oscillator (102), respectively, in the same time.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: March 18, 2014
    Assignee: NEC Corporation
    Inventors: Eisuke Saneyoshi, Koichi Nose, Masayuki Mizuno
  • Patent number: 8635040
    Abstract: A signal measuring device, comprises one set, or a plurality of sets, of measuring unit(s) measuring an object of measurement in synch with a driving clock signal for measurement and outputting result of measurement as first data, and a timing identification unit which, in accordance with a measurement-start command, outputs a value, which differs every period, as second data in synch with a reference signal having a prescribed period and a speed lower than that of the driving clock signal; and a storage unit collecting and successively storing the first data and the second data as one set in synch with the driving clock signal.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: January 21, 2014
    Assignee: NEC Corporation
    Inventors: Koichi Nose, Masayuki Mizuno, Atsufumi Shibayama
  • Patent number: 8513970
    Abstract: A semiconductor device (1) includes a semiconductor wafer (11) on which a plurality of semiconductor chip forming regions (1A) is formed, a circuit section (12) which is provided within each of the semiconductor chip forming regions (1A) of the semiconductor wafer (11), a control circuit section (14), provided within each of the semiconductor chip forming regions (1A) and connected to the circuit section (12), that controls electric power supplied to the circuit section (12), a power supply line (18) connected to the plurality of control circuit section (14), and a reference power line (17) connected to the plurality of control circuit section (14). In each of the control circuit sections (14), a voltage of electric power supplied from the power supply line (18) is controlled on the basis of a reference voltage from the reference power line (17).
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: August 20, 2013
    Assignee: NEC Corporation
    Inventors: Yoshio Kameda, Yoshihiro Nakagawa, Koichiro Noguchi, Masayuki Mizuno, Koichi Nose
  • Patent number: 8446162
    Abstract: A semiconductor integrated circuit device includes: a normal output signal counter that counts number of times a normal output signal is output by the circuit under test in response to a preset one of the input signals of the input signal set, in case where a circuit under test repeats processing on each of one or more input signals of an input signal set sequentially, a plural number of times.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: May 21, 2013
    Assignee: NEC Corporation
    Inventors: Koichi Nose, Masayuki Mizuno
  • Patent number: 8444316
    Abstract: Current reading means detects an output current of a current source whose output current varies with a variation in temperature and outputs a value proportional to the output current. The temperature of the current source corresponding to the output value of the current reading means which is proportional to the output current of the current source is measured, and a parameter for converting the output value to temperature information is determined from the output value of the current reading means and the measured value of the temperature of the current source corresponding to the output value. The output value of the current reading means is converted to the temperature information using the determined parameter.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: May 21, 2013
    Assignee: NEC Corporation
    Inventors: Eisuke Saneyoshi, Koichi Nose, Mikihiro Kajita, Masayuki Mizuno
  • Patent number: 8441277
    Abstract: A semiconductor test apparatus, semiconductor device, and test method are provided that enable the realization of a high-speed delay test. Semiconductor test apparatuses (1a-1c) include: flip-flops (11) each provided with first input terminal SI, second input terminal D, mode terminal SE that accepts a mode signal indicating either a first mode or a second mode, clock terminal CK that accepts a clock signal, and output terminal Q, the flip-flops (11) selecting first input terminal SI when the mode signal indicates the first mode, selecting second input terminal D when the mode signal indicates the second mode, and holding information being received by the input terminal that was selected based on the mode signal in synchronization with the clock signal and supplying as output from output terminal Q; and hold unit 12 that holds a set value and that provides the set value to first input terminal SI.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: May 14, 2013
    Assignees: NEC Corporation, Renesas Electronics Corporation
    Inventors: Koichiro Noguchi, Yoshio Kameda, Koichi Nose, Masayuki Mizuno, Toshinobu Ono
  • Patent number: 8429663
    Abstract: Even if a multiprocessor includes an uneven performance core, an inoperative core or a core that does not satisfy such a performance as designed but if the contrivance of task allocation can satisfy the requirement of an application to be executed, the multiple processors are shipped. In a task group allocation method for allocating, to a processor having a plurality of cores, task groups included in an application for the processor to execute, a calculation section measures performances and disposition patterns of the cores, generates a restricting condition associating the measured performances and disposition patterns of the cores with information indicating whether the application can be executed, and, with reference to the restricting condition, reallocates to the cores, the task groups that have previously been allocated to the cores.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: April 23, 2013
    Assignee: NEC Corporation
    Inventors: Masamichi Takagi, Masayuki Mizuno, Hiroaki Inoue
  • Patent number: 8399960
    Abstract: A plurality of semiconductor chips are juxtaposed, each having an electromagnetic induction coil disposed thereon. A signal is transmitted by way of electromagnetic induction between the electromagnetic induction coils disposed on a pair of adjacent semiconductor chips.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: March 19, 2013
    Assignee: NEC Corporation
    Inventors: Yoshihiro Nakagawa, Koichiro Noguchi, Yoshio Kameda, Masayuki Mizuno
  • Publication number: 20130058263
    Abstract: Disclosed is a radio communication system capable of reducing the cost for introducing a system utilizing RFID technology into a radio network environment. A radio communication system pertaining to the present invention includes a first radio equipment that transmits first data using a first radio wave; a data transmitter that outputs a second radio wave generated by modulating the first radio wave depending on second data which is an object for transmission; and a second radio equipment that receives the first and second radio waves and includes a separation and demodulation circuit that separates and demodulates the first data transmitted from the first radio equipment and the second data transmitted from the data transmitter included in the received radio waves. The data transmitter includes an amplifier for generating the second radio wave by amplifying the first radio wave.
    Type: Application
    Filed: August 3, 2012
    Publication date: March 7, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Haruya ISHIZAKI, Masayuki MIZUNO
  • Patent number: 8355884
    Abstract: Spectrum measurement circuit (101) includes: N-(where N is integer equal or greater than 2) phase clock generation circuit (304) for supplying phase-modulated signals in which the phase of a clock signal is shifted by a phase modulation amount each time the settings of the phase modulation amount are switched; mixer circuit (303) for taking the product of a measured signal supplied from a transmitter and the phase-modulated signals supplied from N-phase clock generation circuit (304); average value output circuit (305) for supplying an average voltage value of the output signal of mixer circuit (303); memory (307) for storing the average voltage value supplied from average value output circuit (305) for each phase modulation amount of N-phase clock generation circuit (304); and arithmetic unit (308) for using the average voltage value for each phase modulation amount of N-phase clock generation circuit (304) to calculate the signal strength of the measured signal.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: January 15, 2013
    Assignee: NEC Corporation
    Inventors: Koichi Nose, Masayuki Mizuno
  • Patent number: 8330483
    Abstract: Disclosed is a semiconductor device in which a circuit in the semiconductor chip is divided into a plurality of sub-circuits. The semiconductor device includes switches between the respective sub-circuits and a power supply, and a circuit that variably controls on-resistances of the switches 111 to 11N.
    Type: Grant
    Filed: November 22, 2007
    Date of Patent: December 11, 2012
    Assignee: NEC Corporation
    Inventor: Masayuki Mizuno
  • Patent number: 8330254
    Abstract: A semiconductor device includes a semiconductor wafer in which semiconductor chip forming regions and a scribe region located between the semiconductor chip forming regions are formed, a plurality of semiconductor chip circuit portions provided over the semiconductor wafer, a plurality of first conductive layers, provided in each of the semiconductor chip forming regions, which is electrically connected to each of the circuit portions, and a first connecting portion that electrically connects the first conductive layers to each other across a portion of the scribe region. An external power supply or grounding pad is connected to any one of the first conductive layer and the first connecting portion. The semiconductor device includes a communication portion, connected to the circuit portion, which performs communication with the outside by capacitive coupling or inductive coupling.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: December 11, 2012
    Assignees: Renesas Electronics Corporation, NEC Corporation
    Inventors: Masayuki Furumiya, Hiroaki Ohkubo, Fuyuki Okamoto, Masayuki Mizuno, Koichi Nose, Yoshihiro Nakagawa, Yoshio Kameda