Patents by Inventor Ikuma ANDO

Ikuma ANDO 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).

  • Array antenna apparatus, receiver, and method of processing received signals
    Patent number: 10326515
    Abstract: When a radio frequency (RF) unit is provided with a delay line or a switch, as the number of arrays (the number of antennas) increases, the parasitic capacitance of the antennas increases and the insertion loss of the switch increases. In addition, the insertion loss may further increase at high frequencies expected to be used in the future. An array antenna apparatus of the present invention is provided with: a plurality of antennas that receive signals; a plurality of down-converters that are connected respectively to the plurality of antennas and that down-convert the received signals; and a switch that selects at least one signal from among the plurality of down-converted signals, and transmits the at least one signal to an A/D converter.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: June 18, 2019
    Assignee: NEC CORPORATION
    Inventors: Naoki Oshima, Ikuma Ando
  • ARRAY ANTENNA APPARATUS, RECEIVER, AND METHOD OF PROCESSING RECEIVED SIGNALS
    Publication number: 20180083689
    Abstract: When a radio frequency (RF) unit is provided with a delay line or a switch, as the number of arrays (the number of antennas) increases, the parasitic capacitance of the antennas increases and the insertion loss of the switch increases. In addition, the insertion loss may further increase at high frequencies expected to be used in the future. An array antenna apparatus of the present invention is provided with: a plurality of antennas that receive signals; a plurality of down-converters that are connected respectively to the plurality of antennas and that down-convert the received signals; and a switch that selects at least one signal from among the plurality of down-converted signals, and transmits the at least one signal to an A/D converter.
    Type: Application
    Filed: April 20, 2016
    Publication date: March 22, 2018
    Applicant: NEC Corporation
    Inventors: Naoki OSHIMA, Ikuma ANDO