Patents by Inventor Yumiko SENOO

Yumiko SENOO 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: 20220113478
    Abstract: A wavelength-selective optical reception device includes a photoreceptor (21) that converts optical signals (201) into electric signals and outputs the electric signals, a base (31) on which the photoreceptor (21) is provided, a housing (41) that is mounted on the base (31) and surrounds the photoreceptor (21) along with the base (31), and that is provided with a window (51) to pass optical signals (203) including the optical signals (201) and including optical signals (202) of a wavelength different from a first wavelength of the optical signals (201) and a window (52) to pass the optical signals (202), and an optical filter (61) that is disposed inside the housing between the window (51) and the photoreceptor (21) along the optical axis (205) of the optical signals (203), and that outputs, out of the optical signals (203) that enter thereto, the optical signals (201) toward the photoreceptor (21), and reflects the optical signals (202) toward a near side in a direction of travel of the optical signals (203)
    Type: Application
    Filed: January 31, 2020
    Publication date: April 14, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takuya KANAI, Takeshi IMAI, Yumiko SENOO, Kota ASAKA
  • Publication number: 20220043253
    Abstract: An optical wavelength selecting filter-module into which light is incident from a prescribed direction determined in advance, the optical wavelength-selective filter module including: an optical filter of which an orientation can be changed; a frequency information acquiring unit which acquires frequency information that is information indicating a frequency of light to be transmitted through the optical filter; a temperature information acquiring unit which acquires temperature information that indicates a temperature of the optical filter; a determining unit which determines an orientation of the optical filter based on relationship information that is information associating, for each prescribed frequency, the temperature and an orientation of the optical filter at which light of the frequency is transmitted through the optical filter at transmittance equal to or higher than prescribed transmittance at the temperature, a temperature indicated by the temperature information, and a frequency indicated by the
    Type: Application
    Filed: December 5, 2019
    Publication date: February 10, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takeshi IMAI, Takuya KANAI, Yumiko SENOO, Kota ASAKA
  • Publication number: 20220021617
    Abstract: A communication system includes a subscriber network unit and a communication device provided in an accommodating station. The subscriber network unit includes an acquisition unit that acquires uplink data from one or more lower-layer devices. The communication device includes: a data processing unit that acquires the uplink data from the subscriber network unit using a band of uplink communication and executes data processing on the acquired uplink data; a policy determination unit that determines a policy of band allocation of the uplink communication on the basis of the result of the data processing; and an allocation control unit that allocates the band of the uplink communication to the subscriber network unit on the basis of the policy.
    Type: Application
    Filed: December 4, 2019
    Publication date: January 20, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yumiko SENOO, Takahiro SUZUKI, Junichi KANI, Hirotaka UJIKAWA