Patents by Inventor Kenichiro Hayashi

Kenichiro Hayashi 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: 20110249772
    Abstract: A transmitter modulates for each symbol period a plurality of carriers that include a carrier group that is consisted of a plurality of prescribed carriers, and repeatedly transmits control information in cycles by using the carrier group. The transmitter transmits multiple-bit binary data of the control information in each symbol period, thereby transmitting the control information once in each of the cycles that includes at least one symbol period. The transmitter controls the transmission unit to switch, within the carrier group, for each of the cycles, carriers of bits of the control information, according to a prescribed rule.
    Type: Application
    Filed: May 27, 2008
    Publication date: October 13, 2011
    Inventors: Tomohiro Kimura, Kenichiro Hayashi
  • Patent number: 7862099
    Abstract: A roof opening/closing apparatus for operating a roof of a vehicle to move between first and second positions includes a panel member for covering an upper portion of an accommodating space and a panel moving mechanism. The panel member includes a first panel and a second panel which are aligned in a longitudinal direction of the vehicle. The panel moving mechanism is provided under the panel member to movably support the first and second panels. The panel moving mechanism includes a sliding mechanism slidably moving the second panel relative to the first panel so that the first and second panels are overlapped when the roof is located in the first position and a length of the panel member in a longitudinal direction of the vehicle is reduced to be smaller than the length of the panel member when the roof is located in the second position.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: January 4, 2011
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Kenichiro Hayashi, Ryuta Fukada, Kastura Inoue
  • Publication number: 20100272199
    Abstract: SP signals to be transmitted from a first transmitting antenna 11 are arranged in the same pattern as SP signals to be transmitted from a second transmitting antenna 12. The SP signals to be transmitted from the second transmitting antenna 12 in one symbol are generated, such that the polarity of the SP signals are alternately inverted and non-inverted with respect to the SP signals to be transmitted from the first transmitting antenna 11 in the same symbol. Thus, in the direction that the symbol number is incremented by 1 and the carrier number is incremented by 3, the polarity of SP signals transmitted from the second transmitting antenna 12 are all inverted or non-inverted with respect to the polarity of corresponding SP signals transmitted from the first transmitting antenna 11.
    Type: Application
    Filed: June 19, 2008
    Publication date: October 28, 2010
    Inventors: Kenichiro Hayashi, Tomohiro Kimura
  • Publication number: 20100275102
    Abstract: There is provided a signal demodulating device, including: a time frequency converting unit (6) for converting a frequency division multiplexing signal on a time axis into a signal on a frequency axis to output a data carrier, a pilot carrier, and a transmission control carrier; an equalizer (7) for equalizing the data carrier and the transmission control carrier according to a characteristic value of a transmission line obtained from the pilot carrier to output an equalized data carrier and an equalized transmission control carrier; a first decoding unit (9) for decoding the equalized transmission control carrier; and a first correcting unit (10) for performing first error-correction on an output of said first decoding unit (9) to output first control information and a first decoding flag that indicates a status of the first error-correction.
    Type: Application
    Filed: October 28, 2008
    Publication date: October 28, 2010
    Inventors: Tetsuya Yagi, Takaya Hayashi, Kenichiro Hayashi, Tomohiro Kimura
  • Patent number: 7809407
    Abstract: A portable terminal includes a receiver, a barcode former configured to form barcodes and a display. The barcode former forms a barcode from the data received by the receiver and the display displays the formed barcode.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: October 5, 2010
    Assignee: Panasonic Corporation
    Inventors: Mitsuaki Oshima, Kenichiro Hayashi, Sadashi Kageyama, Seiji Sakashita, Takao Isogawa, Hisashi Takayama
  • Publication number: 20100175944
    Abstract: A control device for a power transmitting device for four-wheel drive hybrid-vehicle is provided capable of preventing the occurrence of negative torque resulting from power generation control of a second electric motor MG2. Drive-force control means 72 executes a control such that rear-wheel output torque Tpr of rear wheels 40 falls in a positive torque when first and second electric motors MG1 and MG2 execute power generation controls, thereby preventing torques of front and rear wheels 34 and 40 from orienting in different directions. Accordingly, the front and rear wheels 34 and 40 have torques oriented in the same direction, thereby favorably preventing discomfort feeling during a vehicle running.
    Type: Application
    Filed: December 17, 2009
    Publication date: July 15, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kenichiro HAYASHI
  • Publication number: 20100128822
    Abstract: A synchronization section 101 specifies a position of a guard interval correlation's center of gravity based on a guard interval correlation value, and calculates a carrier-direction shift amount Fshift. An equalization section 102 shifts the passband of a carrier interpolation filter of a carrier interpolation section 111 by the carrier-direction shift amount Fshift calculated by the synchronization section 101. This shift processing causes the delay profile to be kept in the center of the passband of the carrier interpolation filter, for any FFT window position. This enables transmission path estimation without limiting a range of an FFT window position even if the passband of the carrier interpolation filter is narrower than a guard interval of an OFDM signal.
    Type: Application
    Filed: March 25, 2008
    Publication date: May 27, 2010
    Inventors: Mikihiro Ouchi, Kenichiro Hayashi, Tomohiro Kimura
  • Patent number: 7660266
    Abstract: To provide a system enabling a function for implementing providing of a service desired by an end user to be automatically generated in a network connecting appliance. When a resource server (RS) receives a request for a specification which is desired to be implemented from a particular service adapter (SA), the requested specification is analyzed by a specification analyzing device, a virtual service adapter is formed by collecting functional modules required to implement the specification, and the formed virtual service adapter is provided for the requesting service adapter. The virtual service adapter is automatically set as a physical service adapter to implement an actually requested function in a service adapter at an end user's place.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: February 9, 2010
    Assignee: Internet Initiative Japan, Inc.
    Inventors: Kiyoshi Ishida, Kenichiro Hayashi, Masaru Oki, Satoshi Ebisawa, Hiroki Suenaga
  • Patent number: 7654605
    Abstract: A roof opening/closing apparatus includes a roof moved between first and second positions and structured with first, second and third panels, a first supporting mechanism movably supporting the first and second panels in association with each other, a second supporting mechanism movably supporting the third panel, a first lock mechanism locking the first panel to the vehicle body, a second lock mechanism locking the first supporting mechanism, and a third lock mechanism locking the third panel to the second panel. The roof is moved between the first position and the second position by the first and second supporting mechanisms and retained at the first position by the first to third lock mechanisms. The second and third lock mechanisms are connected to each other by an operational member and operated in association with each other to release locking operations thereof by the operational member.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: February 2, 2010
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Kenichiro Hayashi, Noboru Iwanaga, Katsura Inoue
  • Patent number: 7653162
    Abstract: An average power indicating channel characteristics is outputted from a reference value calculation unit as a reference value. An interference level corresponding to the degree of influence by frequency selective interference is outputted from an interference detection unit. A reliability determination unit determines a carrier that has been subjected to interference on the basis of the reference value and the interference level, to decide a reliability level. An error correction unit performs error correction of a demodulation signal on the basis of the reliability level.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: January 26, 2010
    Assignee: Panasonic Corporation
    Inventors: Takaya Hayashi, Kenichiro Hayashi, Tetsuya Yagi
  • Publication number: 20090207956
    Abstract: Channel characteristic calculation unit 23 estimates channel characteristics based on SP signals included in received signals, symbol interpolation filter 24 is able to frequency-shift frequency transfer characteristics and filters output signals of the channel characteristic calculation unit 23. Filter control unit 27 estimates channel characteristics based on CP signals included in the received signals and observes the estimated channel characteristics to determine a shift amount by which the symbol interpolation filter 24 frequency-shifts the frequency transfer characteristics. The symbol interpolation filter 24 frequency-shifts the frequency transfer characteristics based on the shift amount determined by the filter control unit 27.
    Type: Application
    Filed: July 30, 2007
    Publication date: August 20, 2009
    Inventors: Tomohiro Kimura, Kenichiro Hayashi
  • Publication number: 20090192008
    Abstract: A differential gear unit has a pinion gear that can spin as well as revolve, a differential case that has a pinion retaining portion that supports the pinion gear, and a pair of side gears that mesh with the pinion gear. Frictional force generated at a portion where the pinion gear contacts the pinion retaining portion when the rotation speed of one side gear is faster than the rotation speed of the other side gear is different from the frictional force generated between the pinion gear and the pinion retaining portion when the rotation speed of the one side gear is slower than the rotation speed of the other side gear.
    Type: Application
    Filed: January 28, 2009
    Publication date: July 30, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kenichiro HAYASHI
  • Patent number: 7555007
    Abstract: In accordance with the present invention, a plurality of routers in more than one network based on different protocols can be integrally managed. The management system of the present invention is capable of integrally managing a plurality of routers in a network based on IPv6 from another network based on IPv4, wherein a relay server receives the identification data from a router, and transmits it to a LAN server. The LAN server uses the received identification data, and pushes the configuration data prepared in advance for the accessing router into the router. The relay server, which has a converting function between IPv4 and IPv6, manages the network on the routers side by IPv6 while it manages the network on the LAN server's side by IPv4.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: June 30, 2009
    Assignee: Internet Initiative Japan, Inc.
    Inventors: Kiyoshi Ishida, Masanobu Saitoh, Kenichiro Hayashi
  • Publication number: 20090140540
    Abstract: A roof opening/closing apparatus for operating a roof of a vehicle to move between first and second positions includes a panel member for covering an upper portion of an accommodating space and a panel moving mechanism. The panel member includes a first panel and a second panel which are aligned in a longitudinal direction of the vehicle. The panel moving mechanism is provided under the panel member to movably support the first and second panels. The panel moving mechanism includes a sliding mechanism slidably moving the second panel relative to the first panel so that the first and second panels are overlapped when the roof is located in the first position and a length of the panel member in a longitudinal direction of the vehicle is reduced to be smaller than the length of the panel member when the roof is located in the second position.
    Type: Application
    Filed: November 25, 2008
    Publication date: June 4, 2009
    Inventors: Kenichiro Hayashi, Ryuta Fukada, Kastura Inoue
  • Publication number: 20090140555
    Abstract: A roof opening/closing apparatus includes a roof moved between first and second positions and structured with first, second and third panels, a first supporting mechanism movably supporting the first and second panels in association with each other, a second supporting mechanism movably supporting the third panel, a first lock mechanism locking the first panel to the vehicle body, a second lock mechanism locking the first supporting mechanism, and a third lock mechanism locking the third panel to the second panel. The roof is moved between the first position and the second position by the first and second supporting mechanisms and retained at the first position by the first to third lock mechanisms. The second and third lock mechanisms are connected to each other by an operational member and operated in association with each other to release locking operations thereof by the operational member.
    Type: Application
    Filed: November 21, 2008
    Publication date: June 4, 2009
    Inventors: Kenichiro Hayashi, Noboru Wanaga, Katsura Inoue
  • Patent number: 7535820
    Abstract: An OFDM signal receiver reduces frequency response estimation error, and reduces the circuit scale needed for a hardware implementation and the number of operations performed in a software implementation. A first Fourier transform circuit converts an OFDM signal to the frequency domain by a Fourier transform. A first divider divides the pilot signal contained in the frequency domain OFDM signal by a specified pilot signal. A zero insertion means then inserts zero signals in the first divider output. A window function multiplying means multiplies the zero insertion means output by a window function, and an inverse Fourier transform means applies an inverse Fourier transform to the multiplier output. A coring means then cores the inverse Fourier transform output, and truncation means truncates the coring means output at a specified data length. A second Fourier transform circuit applies another Fourier transform to the truncated result.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: May 19, 2009
    Assignee: Panasonic Corporation
    Inventor: Kenichiro Hayashi
  • Publication number: 20090052564
    Abstract: An average power indicating channel characteristics is outputted from a reference value calculation unit as a reference value. An interference level corresponding to the degree of influence by frequency selective interference is outputted from an interference detection unit. A reliability determination unit determines a carrier that has been subjected to interference on the basis of the reference value and the interference level, to decide a reliability level. An error correction unit performs error correction of a demodulation signal on the basis of the reliability level.
    Type: Application
    Filed: August 18, 2008
    Publication date: February 26, 2009
    Inventors: Takaya Hayashi, Kenichiro Hayashi, Tetsuya Yagi
  • Patent number: 7436759
    Abstract: A reception apparatus for receiving an OFDM signal having a plurality of pilot carriers that transmit predetermined pilot signals at predetermined symbols. The reception apparatus transforms the received OFDM signal to a frequency-domain OFDM signal, determines channel responses corresponding to the transmitted pilot signals for each of the pilot carriers among a plurality of carriers constituting the frequency-domain OFDM signal, determines, based on channel responses corresponding to first, second and third pilot signals transmitted sequentially in a same carrier, a channel response at a symbol between the second pilot signal and the third pilot signal, compensates a waveform distortion in the frequency-domain OFDM signal according to the channel response at the symbol between the second pilot signal and the third pilot signal and outputs the results.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: October 14, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takaya Hayashi, Kenichiro Hayashi, Takehiro Kamada
  • Patent number: 7424072
    Abstract: An average power indicating channel characteristics is outputted from a reference value calculation unit as a reference value. An interference level corresponding to the degree of influence by frequency selective interference is outputted from an interference detection unit. A reliability determination unit determines a carrier that has been subjected to interference on the basis of the reference value and the interference level, to decide a reliability level. An error correction unit performs error correction of a demodulation signal on the basis of the reliability level.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: September 9, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takaya Hayashi, Kenichiro Hayashi, Tetsuya Yagi
  • Patent number: 7406140
    Abstract: A loop interference canceller that carries out an adaptive operation of responding to time variations of the phase or level of loop interference wave or key station wave at high speed and with high accuracy and reduces the size of an apparatus. The loop interference canceller of the present invention limits the number of data pieces of the transmission path characteristic estimation section, realizes expansion to the entire band not through interpolation but through 0 insertion in a frequency domain and windowing after time domain transformation to reduce the number of data pieces processed and speed up the adaptive operation of the loop interference canceller, and can thereby realize high trackability for time variations of the phase and level of loop interference wave or key station wave, increase the accuracy of processing inside, perform high accuracy cancellation operation, reduce the circuit scale and achieve an advantageous effect of realizing miniaturization of the apparatus.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: July 29, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshinori Kunieda, Hidekuni Yomo, Yoshihito Kawai, Kenichiro Hayashi, Kazuaki Suzuki