Patents by Inventor Shinkichi Nishimoto

Shinkichi Nishimoto 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).

  • Method for quantized-multiple/narrow beam forming within array antenna beamwidth, device for quantized-multiple/narrow beam forming within array antenna beamwidth, and radar system
    Patent number: 10424840
    Abstract: A method includes forming an output amplitude vector of an array antenna of addition values of a signal incoming wave reception output and a reception system noise output; generating a virtual array antenna output amplitude vector of addition values of a signal incoming wave reception output amplitude and a virtual noise wave reception output amplitude such that array output average power of the virtual noise wave is equivalent to average power of the reception system noise output, and deriving a singular linear equation indicating cause-effect relationship of the concerned generation; deriving a non-singular linear equation from the singular linear equation; and obtaining a signal incoming wave amplitude vector using the non-singular linear equation.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: September 24, 2019
    Inventor: Shinkichi Nishimoto
  • METHOD FOR QUANTIZED-MULTIPLE/NARROW BEAM FORMING WITHIN ARRAY ANTENNA BEAMWIDTH, DEVICE FOR QUANTIZED-MULTIPLE/NARROW BEAM FORMING WITHIN ARRAY ANTENNA BEAMWIDTH, AND RADAR SYSTEM
    Publication number: 20170098891
    Abstract: A method includes forming an output amplitude vector of an array antenna of addition values of a signal incoming wave reception output and a reception system noise output; generating a virtual array antenna output amplitude vector of addition values of a signal incoming wave reception output amplitude and a virtual noise wave reception output amplitude such that array output average power of the virtual noise wave is equivalent to average power of the reception system noise output, and deriving a singular linear equation indicating cause-effect relationship of the concerned generation; deriving a non-singular linear equation from the singular linear equation; and obtaining a signal incoming wave amplitude vector using the non-singular linear equation.
    Type: Application
    Filed: December 19, 2016
    Publication date: April 6, 2017
    Inventor: Shinkichi Nishimoto
  • Weight function generating method, reference signal generating method, transmission signal generating apparatus, signal processing apparatus and antenna
    Patent number: 8533249
    Abstract: A rectangular wave for determining a range of a weight function is transformed to frequency domain by an FFT or the like, and after being multiplied by a window function (BlackmanHarris window function, for example) generated on a frequency axis by a multiplier, the frequency domain is transformed again to the time domain by an IFFT or the like thereby to generate a weight function.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: September 10, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshirou Aoki, Masakazu Wada, Junichi Horikomi, Shinkichi Nishimoto
  • Pulse compression processor
    Patent number: 7151484
    Abstract: A pulse compression processor 20 compressing a modulated pulse signal correlately received by a receiver, includes a coefficient calculator 30 calculating a set of filtering coefficients for converting sampled output signal values outside a vicinity of main-lobe of a compressed pulse signal into zero as well as for minimizing S/N loss in a peak value of the main-lobe, and a pulse compression filter 40 compressing the modulated pulse signal based on the set of the filtering coefficients calculated by the coefficient calculator.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: December 19, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mitsuyoshi Shinonaga, Shinkichi Nishimoto
  • Weight function generating method, reference signal generating method, transmission signal generating apparatus, signal processing apparatus and antenna
    Publication number: 20050203730
    Abstract: A rectangular wave for determining a range of a weight function is transformed to frequency domain by an FFT or the like, and after being multiplied by a window function (BlackmanHarris window function, for example) generated on a frequency axis by a multiplier, the frequency domain is transformed again to the time domain by an IFFT or the like thereby to generate a weight function.
    Type: Application
    Filed: March 10, 2005
    Publication date: September 15, 2005
    Inventors: Yoshirou Aoki, Masakazu Wada, Junichi Horikomi, Shinkichi Nishimoto
  • Pulse compression processor
    Publication number: 20050068226
    Abstract: A pulse compression processor 20 compressing a modulated pulse signal correlately received by a receiver, includes a coefficient calculator 30 calculating a set of filtering coefficients for converting sampled output signal values outside a vicinity of main-lobe of a compressed pulse signal into zero as well as for minimizing S/N loss in a peak value of the main-lobe, and a pulse compression filter 40 compressing the modulated pulse signal based on the set of the filtering coefficients calculated by the coefficient calculator.
    Type: Application
    Filed: September 29, 2004
    Publication date: March 31, 2005
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mitsuyoshi Shinonaga, Shinkichi Nishimoto