Patents by Inventor Kazuya Kitasako

Kazuya Kitasako 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).

  • Circuit transmission apparatus and transmission method
    Patent number: 8855235
    Abstract: A transmission apparatus includes: a multiplier configured to multiply a signal provided on a complex plane by a multiplication coefficient corresponding to a number of transmission sub-carriers; and an inverse fast Fourier transformer configured to perform an inverse fast Fourier transform on the multiplied signal.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: October 7, 2014
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Taku Aoki, Takayoshi Kyono, Kazuya Kitasako
  • Transmission apparatus, transmission method, reception apparatus, and reception method
    Patent number: 8718099
    Abstract: A transmission apparatus for converting a transmission data series into frequency-domain, converting the frequency-domain converted signal into time-domain signal, and transmitting the time-domain converted signal, the apparatus including: a preamble pattern generation unit which outputs at least two preamble patterns among second and third preamble patterns, including bit series in which each of bits of a first preamble pattern is continued for n bits (where n is an integer equal to or greater than 2) and for k bits (where k is an integer equal to or greater than 2, and k?n), and the first preamble pattern; and a transmission unit which transmits the transmission signal including at least two of the preamble patterns output from the preamble pattern generation unit.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: May 6, 2014
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Keitaro Otsuka, Takeshi Inoue, Kazuya Kitasako
  • TRANSMISSION APPARATUS, TRANSMISSION METHOD, RECEPTION APPARATUS, AND RECEPTION METHOD
    Publication number: 20120195328
    Abstract: A transmission apparatus for converting a transmission data series into frequency-domain, converting the frequency-domain converted signal into time-domain signal, and transmitting the time-domain converted signal, the apparatus including: a preamble pattern generation unit which outputs at least two preamble patterns among second and third preamble patterns, including bit series in which each of bits of a first preamble pattern is continued for n bits (where n is an integer equal to or greater than 2) and for k bits (where k is an integer equal to or greater than 2, and k?n), and the first preamble pattern; and a transmission unit which transmits the transmission signal including at least two of the preamble patterns output from the preamble pattern generation unit.
    Type: Application
    Filed: November 21, 2011
    Publication date: August 2, 2012
    Applicant: Fujitsu Semiconductor Limited
    Inventors: Keitaro OTSUKA, Takeshi INOUE, Kazuya KITASAKO
  • CIRCUIT TRANSMISSION APPARATUS AND TRANSMISSION METHOD
    Publication number: 20100310008
    Abstract: A transmission apparatus includes: a multiplier configured to multiply a signal provided on a complex plane by a multiplication coefficient corresponding to a number of transmission sub-carriers; and an inverse fast Fourier transformer configured to perform an inverse fast Fourier transform on the multiplied signal.
    Type: Application
    Filed: June 2, 2010
    Publication date: December 9, 2010
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Taku AOKI, Takayoshi Kyono, Kazuya Kitasako