Patents by Inventor Eri Miyoshi

Eri Miyoshi 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).

  • Antenna device, demodulating device and receiving device
    Patent number: 8270537
    Abstract: An antenna device that is placed adjacent to an antenna 5 for receiving a high frequency signal and includes an impedance matching circuit 6 and an amplifying circuit 21 to which a DC control voltage is supplied from a demodulating device 3 through a feeder cable 4 for transmitting the high frequency signal to the demodulating device 3, wherein the DC control voltage is set to a value for adjusting a frequency characteristic of the impedance matching circuit 6 within an allowable range corresponding to a received frequency. A small and inexpensive antenna device having a simple circuit configuration and good reception sensitivity is implemented.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: September 18, 2012
    Assignee: Fujitsu Ten Limited
    Inventors: Kohichi Tsutsui, Susumu Hasegawa, Kazuo Takayama, Kenji Kawai, Mansaku Nakano, Eri Miyoshi
  • Integrated reception system
    Publication number: 20100246694
    Abstract: An integrated reception system includes an integrated antenna device and an integrated-signal processing device. The integrated antenna device fed with power from the integrated-signal processing device converts a high frequency signal received by an antenna for receiving a plurality of signals of different signal systems into a digital signal, demodulates the converted digital signal, multiplexes digital demodulated signals which are demodulated, modulates the high frequency signal based on the multiplexed demodulated signal, attenuates the modulated high frequency signal by a predetermined amount of attenuation, and outputs the attenuated signal. The integrated-signal processing device demodulates the high frequency signal, separates the demodulated signal into demodulated signals each digitized for each of the signal systems, and outputs the separated demodulated signal.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 30, 2010
    Applicant: FUJITSU TEN LIMITED
    Inventors: Kohichi Tsutsui, Kenji Kawai, Eri Miyoshi, Susumu Hasegawa, Hirotaka Nakahara
  • ANTENNA DEVICE, DEMODULATING DEVICE AND RECEIVING DEVICE
    Publication number: 20090245425
    Abstract: An antenna device that is placed adjacent to an antenna 5 for receiving a high frequency signal and includes an impedance matching circuit 6 and an amplifying circuit 21 to which a DC control voltage is supplied from a demodulating device 3 through a feeder cable 4 for transmitting the high frequency signal to the demodulating device 3, wherein the DC control voltage is set to a value for adjusting a frequency characteristic of the impedance matching circuit 6 within an allowable range corresponding to a received frequency. A small and inexpensive antenna device having a simple circuit configuration and good reception sensitivity is implemented.
    Type: Application
    Filed: March 23, 2009
    Publication date: October 1, 2009
    Applicant: FUJITSU TEN LIMITED
    Inventors: Kohichi TSUTSUI, Susumu HASEGAWA, Kazuo TAKAYAMA, Kenji KAWAI, Mansaku NAKANO, Eri MIYOSHI