Patents by Inventor Nobutoshi Otonari

Nobutoshi Otonari 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).

  • Patent number: 10277492
    Abstract: Downlink signals output from a transmission and reception unit are combined with an interference signal of a CW, a resultant signal is applied to a mobile terminal, throughputs for respective interference signal frequencies for the downlink signals are collectively measured, a signal suppression band of the filter is fitted to a frequency band of the downlink signal determined not to reach a defined value, and re-measurement and re-determination of the throughput for the downlink signal among the collectively measured throughputs are performed. In a case where throughputs collectively measured at a certain interference signal frequency are equal to or greater than the defined value and a case where re-measured throughputs of all the downlink signals are equal to or greater than the defined value, the interference signal frequency is switched to the next interference signal frequency, and collective throughput measurement is performed.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: April 30, 2019
    Assignee: ANRITSU CORPORATION
    Inventors: Ryota Chinbe, Nobutoshi Otonari, Kazunari Kawano, Akira Hatano
  • Publication number: 20170317907
    Abstract: Downlink signals output from a transmission and reception unit are combined with an interference signal of a CW, a resultant signal is applied to a mobile terminal, throughputs for respective interference signal frequencies for the downlink signals are collectively measured, a signal suppression band of the filter is fitted to a frequency band of the downlink signal determined not to reach a defined value, and re-measurement and re-determination of the throughput for the downlink signal among the collectively measured throughputs are performed. In a case where throughputs collectively measured at a certain interference signal frequency are equal to or greater than the defined value and a case where re-measured throughputs of all the downlink signals are equal to or greater than the defined value, the interference signal frequency is switched to the next interference signal frequency, and collective throughput measurement is performed.
    Type: Application
    Filed: April 4, 2017
    Publication date: November 2, 2017
    Inventors: Ryota Chinbe, Nobutoshi Otonari, Kazunari Kawano, Akira Hatano
  • Patent number: 9408093
    Abstract: Setting means does not respond to a transmission signal from a mobile terminal for a predetermined period of time and sets the mobile terminal to a designation value saturation level excess state during a random access process. Data transmission instruction means allocate M resource blocks and N resource blocks (where N is less than M) to the mobile terminal in the designation value saturation level excess state, respectively, and instruct the mobile terminal to transmit signals in which data are inserted into the allocated resource blocks. Power measurement means measures the power of the signals. Determination means determines whether a difference between the measured values when the numbers of resource blocks are M and N is within an allowable range and determines whether the mobile terminal quickly responds to an output power reduction instruction on the basis of the determination results.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: August 2, 2016
    Assignee: ANRITSU CORPORATION
    Inventors: Haruyuki Togashi, Dai Arae, Nobutoshi Otonari
  • Patent number: 9397923
    Abstract: A mobile communication terminal test device includes: test signal transmitting means (40) for transmitting, to a mobile communication terminal (50), a test signal including a plurality of radio resource regions (1 to 8) each of which is surrounded by one or more sub-frames and one or more resource blocks; and response signal receiving means (14) for receiving a response signal to the test signal from the mobile communication terminal. The test signal transmitting means transmits, to the mobile communication terminal, the test signal which includes one radio resource region for each predetermined time interval (T) and in which the position of the radio resource region in the frequency axis direction varies for each predetermined time interval.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: July 19, 2016
    Assignee: ANRITSU CORPORATION
    Inventors: Nobutoshi Otonari, Kenichi Inoue, Hiroaki Iida
  • Publication number: 20150181448
    Abstract: A mobile terminal test device includes a frame structure storage unit that stores a plurality of frame structure information items indicating the allocation patterns of a downlink (DL) and an uplink (UL) to a predetermined number of sub-frames forming one TDD frame, a scenario processing unit 24 including means for designating the type of frame used for a throughput test, and a timing control unit 27 that determines at least one of UL sub-frames in the designated type of frame as a response start sub-frame for returning acknowledgement/negative-acknowledgement messages from a mobile terminal 1 with reference to the frame structure information corresponding to the designated type of frame and determines at least one of DL sub-frames that are a predetermined number of sub-frames before the response start sub-frame as a transmission start sub-frame. The DL throughput of an arbitrarily designated type of frame is accurately calculated.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 25, 2015
    Inventors: Nobutoshi Otonari, Haruyuki Togashi
  • Publication number: 20150148051
    Abstract: Setting means does not respond to a transmission signal from a mobile terminal for a predetermined period of time and sets the mobile terminal to a designation value saturation level excess state during a random access process. Data transmission instruction means allocate M resource blocks and N resource blocks (where N is less than M) to the mobile terminal in the designation value saturation level excess state, respectively, and instruct the mobile terminal to transmit signals in which data are inserted into the allocated resource blocks. Power measurement means measures the power of the signals. Determination means determines whether a difference between the measured values when the numbers of resource blocks are M and N is within an allowable range and determines whether the mobile terminal quickly responds to an output power reduction instruction on the basis of the determination result.
    Type: Application
    Filed: October 21, 2014
    Publication date: May 28, 2015
    Inventors: Haruyuki Togashi, Dai Arae, Nobutoshi Otonari
  • Publication number: 20150071094
    Abstract: A mobile communication terminal test device includes: test signal transmitting means (40) for transmitting, to a mobile communication terminal (50), a test signal including a plurality of radio resource regions (1 to 8) each of which is surrounded by one or more sub-frames and one or more resource blocks; and response signal receiving means (14) for receiving a response signal to the test signal from the mobile communication terminal. The test signal transmitting means transmits, to the mobile communication terminal, the test signal which includes one radio resource region for each predetermined time interval (T) and in which the position of the radio resource region in the frequency axis direction varies for each predetermined time interval.
    Type: Application
    Filed: July 16, 2014
    Publication date: March 12, 2015
    Inventors: Nobutoshi Otonari, Kenichi Inoue, Hiroaki Iida
  • Patent number: 6839032
    Abstract: A portable radio terminal testing apparatus has an antenna coupler 20, a connecting member 16, and a measuring device 15. The antenna coupler 20 has a placement member 35, a coupling antenna 25, a pair of through-connection portions, and an impedance transformer 31. The placement member 35 accepts a portable radio terminal 1, which is a testing object, in an unrestricted state. The coupling antenna 25 is disposed so as to be electromagnetically coupled with an antenna 19 of the portable radio terminal 1, and has a pair of antenna elements which are formed at one face side of a dielectric substrate 26 and which have a planar antenna structure of a predetermined shape, and a pair of feeding points, and is formed from a self-complementary antenna having a predetermined impedance within an operating frequency range including at least 800 MHz to 2.5 GHz order.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: January 4, 2005
    Assignee: Anritsu Corporation
    Inventors: Tasuku Teshirogi, Nobutoshi Otonari
  • Publication number: 20040012529
    Abstract: A portable radio terminal testing apparatus has an antenna coupler 20, a connecting member 16, and a measuring device 15. The antenna coupler 20 has a placement member 35, a coupling antenna 25, a pair of through-connection portions, and an impedance transformer 31. The placement member 35 accepts a portable radio terminal 1, which is a testing object, in an unrestricted state. The coupling antenna 25 is disposed so as to be electromagnetically coupled with an antenna 19 of the portable radio terminal 1, and has a pair of antenna elements which are formed at one face side of a dielectric substrate 26 and which have a planar antenna structure of a predetermined shape, and a pair of feeding points, and is formed from a self-complementary antenna having a predetermined impedance within an operating frequency range including at least 800 MHz to 2.5 GHz order.
    Type: Application
    Filed: April 3, 2003
    Publication date: January 22, 2004
    Inventors: Tasuku Teshirogi, Nobutoshi Otonari