Patents by Inventor Tomohiro Kimura

Tomohiro Kimura 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: 20190253581
    Abstract: An information processing apparatus (printing apparatus) provides a service to an external apparatus via a communication line. A first communication unit performs communication via a first communication line. A second communication unit performs communication via a second communication line that is different from the first communication line. A provision unit provides a user interface for accepting, from a user, a setting that limits services that are to be provided via the second communication line. A limitation unit limits services that are to be provided via the second communication line, to one or more services out of a plurality of services that the information processing apparatus can provide, according to the setting accepted via the user interface.
    Type: Application
    Filed: February 12, 2019
    Publication date: August 15, 2019
    Inventor: Tomohiro Kimura
  • Publication number: 20190253114
    Abstract: A transmission apparatus that (i) generates a Quadrature Phase Shift Keying (QPSK) modulation signal s1(t) by applying a QPSK modulation scheme to a first data sequence, (ii) generates a 16-Quadrature Amplitude Modulation (QAM) modulation signal s2(t) by applying a 16-QAM modulation scheme to a second data sequence, (iii) generates a transmission signal z1(t) and a second transmission signal z2(t) by applying a phase hopping process, a precoding process, and a power adjust process to the QPSK modulation signal s1(t) and the 16-QAM modulation signal s2(t), wherein an average transmission power of the 16-QAM modulation signal s2(t) being the same as an average transmission power of the QPSK modulation signal s1(t), and (iv) transmits the transmission signal z1(t) from a first antenna at a first time and a first frequency and the second transmission signal z2(t) from a second antenna at the first time and the first frequency.
    Type: Application
    Filed: April 24, 2019
    Publication date: August 15, 2019
    Inventors: Yutaka MURAKAMI, Tomohiro KIMURA, Mikihiro OUCHI
  • Publication number: 20190253189
    Abstract: A decoding device includes: a BP decoder that performs BP decoding on an input signal; a maximum likelihood decoder that performs maximum likelihood decoding on a signal subjected to the BP decoding; and a selector that selects one of the input signal, the signal subjected to the BP decoding, and a signal subjected to the maximum likelihood decoding. In a configuration of the decoding device, when a decoder is appropriately operated according to quality of data, a calculation scale can be reduced, and power consumption can be decreased.
    Type: Application
    Filed: April 23, 2019
    Publication date: August 15, 2019
    Inventors: Yutaka MURAKAMI, Tomohiro KIMURA, Mikihiro OUCHI
  • Publication number: 20190248271
    Abstract: Provided is a lighting control device capable of reducing the lighting delay when a light source is turned on/off in accordance with the bank angle of a vehicle. The lighting control device which controls the lighting state of the light source sets the time period required for turning on the light source to be shorter as the vehicle speed is higher when the inclination angle of a vehicle body in the vehicle width direction is larger than a reference value, and causes the light source to be fully turned on over the set time period. The lighting control device also sets the time period required for turning off the light source to be shorter as the vehicle speed is higher when the inclination angle of a vehicle body is smaller than a reference value, and causes the light source to be dimmed and turned off over the set time period.
    Type: Application
    Filed: February 12, 2019
    Publication date: August 15, 2019
    Applicant: Stanley Electric Co., Ltd.
    Inventors: Tomohiro KIMURA, Toshiharu SEKIOKA
  • Patent number: 10367675
    Abstract: Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ. A modulated signal with such data symbols arranged therein is transmitted.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: July 30, 2019
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 10367555
    Abstract: Disclosed is a precoding method for generating, from a plurality of baseband signals, a plurality of precoded signals that are transmitted in the same frequency bandwidth at the same time. According to the precoding method, one matrix is selected from among matrices defining a precoding process that is performed on the plurality of baseband signals by hopping between the matrices. A first baseband signal and a second baseband signal relating to a first coded block and a second coded block generated by using a predetermined error correction block coding scheme satisfy a given condition.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: July 30, 2019
    Assignee: Sun Patent Trust
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 10367552
    Abstract: A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: July 30, 2019
    Assignee: SUN PATENT TRUST
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Publication number: 20190227757
    Abstract: A communication apparatus includes a first determination unit that, in a case where a use request for a wireless local area network (LAN) setting service has been received, determines whether a communication in a wireless LAN infrastructure mode is in execution, a transmission unit that, in a case where it is determined that a communication in the wireless LAN infrastructure mode is in execution, transmits information indicating that the wireless LAN setting service is unavailable to a terminal apparatus, and, in a case where it is determined that no communication in the wireless LAN infrastructure mode is in execution, transmits information indicating that the wireless LAN setting service is available to the terminal apparatus, and an activation unit that, in a case where it is determined that no communication in the wireless LAN infrastructure mode is in execution, activates the wireless LAN setting service.
    Type: Application
    Filed: January 16, 2019
    Publication date: July 25, 2019
    Inventor: Tomohiro Kimura
  • Publication number: 20190229782
    Abstract: A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.
    Type: Application
    Filed: April 2, 2019
    Publication date: July 25, 2019
    Inventors: Yutaka MURAKAMI, Tomohiro KIMURA, Mikihiro OUCHI
  • Publication number: 20190229784
    Abstract: A signal generation method is used in a transmission device that transmits a plurality of transmission signals from a plurality of antennas at the same frequency and at the same time, in the case where larger power change is performed on a first transmission signal than on a second transmission signal during generation process of the first transmission signal and the second transmission signal, the first transmission signal and the second transmission signal are mapped before the power change such that a minimum Euclidian distance between possible signal points for the first signal is longer than a minimum Euclidian distance between possible signal points for the second signal.
    Type: Application
    Filed: April 1, 2019
    Publication date: July 25, 2019
    Inventors: Yutaka MURAKAMI, Tomohiro KIMURA, Mikihiro OUCHI
  • Publication number: 20190222294
    Abstract: Provided is a transmitting device which can expand a communication range when performing multicast/broadcast communication. The transmitting device includes a plurality of transmission antennas, and includes: a signal processor which generates a first baseband signal by modulating data of a first stream, and a second baseband signal by modulating data of a second stream; and a transmitter which generates, from the first baseband signal, first transmission signals having different directivities, generates, from the second baseband signal, second transmission signals having different directivities, and transmits the first transmission signals and the second transmission signals at a same time. When the transmitter has received, from a terminal, a request to transmit the first stream, the transmitter further generates, from the first baseband signal, third transmission signals which are different from the first transmission signals and have different directivities, and transmits the third transmission signals.
    Type: Application
    Filed: March 20, 2019
    Publication date: July 18, 2019
    Inventors: Yutaka MURAKAMI, Tomohiro KIMURA, Mikihiro OUCHI
  • Publication number: 20190222351
    Abstract: In a transmission method according to one aspect of the present disclosure, a encoder performs error correction coding on an information bit string to generate a code word. A mapper modulates a first bit string in which the number of bits is the predetermined integral multiple of (X+Y) in the code word using a first scheme, the first scheme being a set of a modulation scheme in which an X-bit bit string is mapped to generate a first complex signal and a modulation scheme in which a Y-bit bit string is mapped to generate a second complex signal, and modulates a second bit string in which the first bit string is removed from the code word using a second scheme different from the first scheme.
    Type: Application
    Filed: March 21, 2019
    Publication date: July 18, 2019
    Inventors: Yutaka MURAKAMI, Tomohiro KIMURA, Mikihiro OUCHI
  • Patent number: 10355816
    Abstract: A communication method includes executing a cyclic block permutation for a codeword generated based on a quasi-cyclic parity-check code including a repeat-accumulate quasi-cyclic low-density parity-check code, where the cyclic block permutation is permutation of cyclic blocks within the codeword, and mapping each bit of the codeword for which the cyclic block permutation is executed to any one of constellation point of a non-uniform constellation.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: July 16, 2019
    Assignee: PANASONIC CORPORATION
    Inventors: Peter Klenner, Frank Herrmann, Tomohiro Kimura
  • Patent number: 10355765
    Abstract: A transmission apparatus includes M signal processors that respectively generate modulated signals directed to M reception apparatuses, M being an integer equal to or greater than 2, and an antenna section. Each signal processor modulates a first bit sequence made up of two bits to generate a first modulated signal and a second modulated signal, and modulates a second bit sequence made up of other two bits to generate a third modulated signal and a fourth modulated signal, in a case of transmitting multiple streams to a corresponding one of the M reception apparatuses. The antenna section includes a first antenna that transmits the first modulated signal and the third modulated signal and a second antenna that transmits the second modulated signal and the fourth modulated signal. At least either the signals transmitted from the first antenna or the signals transmitted from the second antenna are phase-changed signals.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: July 16, 2019
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 10355898
    Abstract: A transmission method includes mapping processing, phase change processing, and transmission processing. In the mapping processing, a plurality of first modulation signals and a plurality of second modulation signals are generated using a first mapping scheme, and a plurality of third modulation signals and a plurality of fourth modulation signals are generated using a second mapping scheme. In the phase change processing, a phase change is performed on the plurality of second modulation signals and the plurality of fourth modulation signals using all N kinds of phases. In the transmission processing, the first modulation signals and the second modulation signals are respectively transmitted at a same frequency and a same time from different antennas, and the third modulation signals and the fourth modulation signals are respectively transmitted at a same frequency and a same time from the different antennas.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: July 16, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Publication number: 20190215036
    Abstract: Provided is a precoding method for generating, from a plurality of baseband signals, a plurality of precoded signals to be transmitted over the same frequency bandwidth at the same time, including the steps of selecting a matrix F[i] from among N matrices, which define precoding performed on the plurality of baseband signals, while switching between the N matrices, i being an integer from 0 to N?1, and N being an integer at least two, generating a first precoded signal z1 and a second precoded signal z2, generating a first encoded block and a second encoded block using a predetermined error correction block encoding method, generating a baseband signal with M symbols from the first encoded block and a baseband signal with M symbols the second encoded block, and precoding a combination of the generated baseband signals to generate a precoded signal having M slots.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Inventors: Yutaka MURAKAMI, Tomohiro KIMURA, Mikihiro OUCHI
  • Publication number: 20190215051
    Abstract: Provided is control information related to polarizations of antennas for MISO communication. The control signal generator generates polarization information indicating whether antennas used for transmission by MISO have only a first polarization or have a second polarization as well as the first polarization. With this structure, the present invention allows for the use of combinations of SISO, MISO and MIMO, taking the polarization of antennas. Furthermore, the present invention enables the receiver to reduce the power consumption.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 11, 2019
    Inventors: Mikihiro OUCHI, Yutaka MURAKAMI, Tomohiro KIMURA
  • Publication number: 20190207707
    Abstract: A transmission device that performs multiple-input multiple-output (MIMO) transmission of transmit data using a plurality of fundamental bands. The transmission device includes an error correction coding unit, a mapping unit, and a MIMO coding unit. The error correction coding unit, for each data block of predefined length, performs error correction coding and thereby generates an error correction coded frame. The mapping unit maps each predefined number of bits in the error correction coded frame to a corresponding symbol and thereby generates an error correction coded block. The MIMO coding unit performs MIMO coding with respect to the error correction coded block. Components of data included in the error correction coded block are allocated to at least two of the fundamental bands and transmitted.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: Mikihiro OUCHI, Noritaka IGUCHI, Tomohiro KIMURA
  • Publication number: 20190207659
    Abstract: Disclosed is a transmission scheme for transmitting a first modulated signal and a second modulated signal over the same frequency at the same time. According to the transmission scheme, a precoding weight multiplying unit multiplies a baseband signal after a first mapping and a baseband signal after a second mapping by a precoding weight and outputs the first modulated signal and the second modulated signal. In the precoding weight multiplying unit, precoding weights are regularly hopped.
    Type: Application
    Filed: March 14, 2019
    Publication date: July 4, 2019
    Inventors: Yutaka MURAKAMI, Tomohiro KIMURA, Mikihiro OUCHI
  • Publication number: 20190196194
    Abstract: A head-mounted display (1) includes: a liquid crystal display unit (2) including a display surface (7) facing forward, the liquid crystal display unit (2) configured to display an image on the display surface (7); an eyepiece lens (13) disposed at a position lower than the liquid crystal display unit (2); and a mirror unit (4) configured to reflect light based on the image displayed on the display surface (7) and guide the light thus reflected to the eyepiece lens (13).
    Type: Application
    Filed: November 15, 2018
    Publication date: June 27, 2019
    Inventors: DAVID JAMES MONTGOMERY, KA HO TAM, SCOTT WELLS, NARU USUKURA, TOMOHIRO KIMURA