Patents by Inventor Takashi Sumiyoshi

Takashi Sumiyoshi 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: 20240146255
    Abstract: An amplifier includes a first amplifier amplifying first signal, a first matching circuit having first end connected to output node of first amplifier, and second end connected to first intermediate node, and a first transmission line having first end connected to first intermediate node, and second end connected to first output node. At a center frequency of an operating band, a first reactance component of impedance seen from first output node toward first transmission line is smaller than a second reactance component of impedance seen from first intermediate node toward first matching circuit, and at the center frequency, a first characteristic impedance of first transmission line is 0.5 to 2 times an absolute value of first impedance seen from second end of first matching circuit toward first matching circuit when first and second ends of first matching circuit are terminated to reference impedance.
    Type: Application
    Filed: October 20, 2023
    Publication date: May 2, 2024
    Applicant: Sumitomo Electronic Industries, Ltd.
    Inventor: Takashi SUMIYOSHI
  • Publication number: 20230412128
    Abstract: An outphasing amplifier includes a first amplifier, a second amplifier, a first coupler coupling a first signal and a third signal, a second coupler coupling a second signal and a fourth signal, a first impedance converter inputting the first signal coupled with the third signal, a second impedance converter inputting the second signal coupled with the fourth signal, a combiner combining the first and the second signals output from the first and the second impedance converters and outputting an output signal, and a signal processor outputting the first signal having a first phase to the first amplifier, outputting the second signal having a second phase to the second amplifier, outputting the third signal having at least one of a third phase and a first amplitude to the first coupler, and outputting the fourth signal having at least one of a fourth phase and a second amplitude to the second coupler.
    Type: Application
    Filed: February 23, 2023
    Publication date: December 21, 2023
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventor: Takashi SUMIYOSHI
  • Publication number: 20230141724
    Abstract: An emotion recognition system includes an input unit configured to input first speech data and second speech data, and a processing unit configured to input the first speech data and the second speech data to a differential-emotion recognition model that infers a differential emotion between two pieces of speech data, and acquire, from the differential-emotion recognition model, differential-emotion information indicating a differential emotion between the first speech data and the second speech data.
    Type: Application
    Filed: October 11, 2022
    Publication date: May 11, 2023
    Inventor: Takashi SUMIYOSHI
  • Publication number: 20230107916
    Abstract: A high frequency circuit includes a transistor amplifying a high frequency signal, and having an input electrode and an output electrode, a line that is connected to any one of the input electrode and the output electrode, and transmits a high frequency signal or an amplified high frequency signal, a bias terminal to which a bias voltage is supplied, a bias circuit that has a first end connected to a first node and a second end connected to the bias terminal, and suppresses a high frequency signal having a frequency within an operating frequency band of the transistor from passing from the first node to the bias terminal, and a resonance circuit that is connected between a reference potential and a second node provided between the bias terminal and the bias circuit, and minimizes an impedance between the second node and the reference potential at a resonance frequency.
    Type: Application
    Filed: July 7, 2022
    Publication date: April 6, 2023
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventor: Takashi SUMIYOSHI
  • Publication number: 20230108671
    Abstract: A high frequency circuit includes a transistor having an input electrode that inputs a high frequency signal and an output electrode that outputs the high frequency signal, a transmission line that is connected to any one of the input electrode and the output electrode, and transmits the high frequency signal, a coupling line electrically separated from the transmission line to an extent that an electromagnetic field coupling is enabled with the transmission line, and a resonance circuit that is connected between a first end of the coupling line and a reference potential, and minimizes an impedance between the first end and the reference potential at a resonance frequency.
    Type: Application
    Filed: August 19, 2022
    Publication date: April 6, 2023
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventor: Takashi SUMIYOSHI
  • Patent number: 11605377
    Abstract: The dialog device according to the present invention includes a prediction unit 254 configured to predict an utterance length attribute of a user utterance in response to a the machine utterance, a selection unit 256 configured to use the utterance length attribute to select, as a feature model for usage in an end determination of the user utterance, at least one of an acoustic feature model or a lexical feature model, and an estimation unit 258 configured to estimate an end point in the user utterance using the selected model. By using this dialog device, it is possible to shorten the waiting time until a response is output to a user utterance by a machine, and to realize a more natural conversation between a user and a machine.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: March 14, 2023
    Assignee: HITACHI, LTD.
    Inventors: Amalia Istiqlali Adiba, Takeshi Homma, Takashi Sumiyoshi
  • Publication number: 20230025619
    Abstract: An outphasing amplifier includes a first amplifier configured to amplify a first signal, a second amplifier configured to amplify a second signal of which a phase difference from the first signal changes, and a synthesizer that has a first transmission line through which a third signal output from the first amplifier passes, a second transmission line through which a fourth signal output from the second amplifier passes, a first coupling circuit that is separately provided from the first transmission line and is coupled to the first transmission line, a second coupling circuit that is separately provided from the second transmission line and coupled to the second transmission line, and a node that synthesizes the third signal having passed through the first transmission line and the fourth signal having passed through the second transmission line.
    Type: Application
    Filed: June 6, 2022
    Publication date: January 26, 2023
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventor: Takashi SUMIYOSHI
  • Publication number: 20220368285
    Abstract: A Doherty amplifier includes a divider configured to divide an input signal into two signals, a first amplifier configured to amplify one of the two signals and output the amplified signal to a first node, a second amplifier configured to amplify the other of the two signals and output the amplified signal to a second node, a balun including lumped parameter elements and configured to output a signal obtained by combining the signal output from the first amplifier with the signal output from the second amplifier to a third node, and a path configured to DC-connect the first node to the second node, with the third node therebetween.
    Type: Application
    Filed: April 29, 2022
    Publication date: November 17, 2022
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventor: Takashi SUMIYOSHI
  • Publication number: 20220165248
    Abstract: To ensure optimization of a voice output timing. A voice synthesis apparatus that performs voice synthesis based on a statistical acoustic model includes a processor that executes a program and a storage device that stores the program. The voice synthesis apparatus performs a selection process and a synthesis process. The selection process selects a synthesis method applied to an input voice among a plurality of synthesis methods in combination of sizes of the statistical acoustic models with voice synthesis processes based on the input voice. The synthesis process synthesizes the input voice by the synthesis method selected in the selection process.
    Type: Application
    Filed: November 4, 2021
    Publication date: May 26, 2022
    Inventors: Qinghua SUN, Takashi SUMIYOSHI
  • Publication number: 20210357792
    Abstract: In order to assist participants in thinking of an idea by acquiring audio data, it is provided a workshop assistance system, which includes a computer having an arithmetic apparatus configured to execute predetermined processing, a storage device coupled to the arithmetic apparatus, and a communication interface coupled to the arithmetic apparatus, the computer being configured to access solved problem case data including information of solved cases that correspond to problem data, the workshop assistance system comprising: a problem processing module configured to search, by the arithmetic apparatus, solved cases based on problem data that is generated from a discussion among participants; and an idea generation module configured to present, by the arithmetic apparatus, idea data including the generated problem data and information of the solved case found in the search to the participants.
    Type: Application
    Filed: January 31, 2019
    Publication date: November 18, 2021
    Applicant: Hitachi, Ltd.
    Inventors: Shuhei FURUYA, Yo TAKEUCHI, Kiyoshi KUMAGAI, Toshiyuki ONO, Masao ISHIGURO, Tatsuya TOKUNAGA, Chisa NAGAI, Takashi SUMIYOSHI, Naoyuki KANDA, Kenji NAGAMATSU, Kenji OHYA
  • Publication number: 20200365146
    Abstract: The dialog device according to the present invention includes a prediction unit 254 configured to predict an utterance length attribute of a user utterance in response to a the machine utterance, a selection unit 256 configured to use the utterance length attribute to select, as a feature model for usage in an end determination of the user utterance, at least one of an acoustic feature model or a lexical feature model, and an estimation unit 258 configured to estimate an end point in the user utterance using the selected model. By using this dialog device, it is possible to shorten the waiting time until a response is output to a user utterance by a machine, and to realize a more natural conversation between a user and a machine.
    Type: Application
    Filed: March 19, 2020
    Publication date: November 19, 2020
    Applicant: HITACHI, LTD.
    Inventors: Amalia Istiqlali ADIBA, Takeshi HOMMA, Takashi SUMIYOSHI
  • Patent number: 10794878
    Abstract: A GC/MS measurement under an ionization by an electron ionization method is performed for a target sample (S1). Peaks are detected on a chromatogram based on obtained data, and a mass spectrum corresponding to each peak is compared with a compound database to identify a compound (S2-S4). A compound identified with a low degree of similarity is extracted as the measurement compound. For this compound, a measurement window including the retention time of a peak corresponding to the compound is set, and a control program for performing an ionization by a chemical ionization method only within the measurement window is created (S5-S8).
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: October 6, 2020
    Assignee: SHIMADZU CORPORATION
    Inventors: Yuki Sakamoto, Takashi Sumiyoshi, Yoshiro Hiramatsu
  • Patent number: 10732643
    Abstract: A control system includes: a moving object; and a control apparatus. The moving object is configured to: determine a face direction based on whether or not a face image of the human exists; and control the movement apparatus so that the moving object moves in accordance with path information. The control apparatus is configured to: detect a position of the human and the moving object in the area; calculate, based on the position of the human and the moving object, and the face direction, the path information for allowing the moving object to arrive at any one of a position within a predetermined range from the human and in a field of view of the human and a position within the predetermined range from the human and outside the field of view of the human; and transmit the path information to the moving object.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: August 4, 2020
    Assignee: HITACHI, LTD.
    Inventors: Yoshitaka Hiramatsu, Takashi Sumiyoshi, Masahito Togami
  • Patent number: 10691898
    Abstract: Disclosed is a method for synchronizing visual information and auditory information characterized by extracting visual information included in video, recognizing auditory information in a first language that is included in a speech in the first language, associating the visual information with the auditory information in the first language, translating the auditory information in the first language to auditory information in a second language, and editing at least one of the visual information with the auditory information in the second language so as to associate the visual information and the auditory information in the second language with each other.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: June 23, 2020
    Assignee: HITACHI, LTD.
    Inventors: Qinghua Sun, Takeshi Homma, Takashi Sumiyoshi, Masahito Togami
  • Patent number: 10629222
    Abstract: A sound signal processing method and device are provided for separating sounds of the respective sound sources even when sounds are recorded asynchronously by a plurality of devices. Specifically, the present invention comprises the steps of instructing each of the plurality of devices to output a reference signal of a different frequency, receiving each of the reference signals output from the speaker of the plurality of devices according to the instruction, receiving sound signals in which each of the reference signals output from the speaker of the plurality of devices is input into the microphone of the plurality of devices, calculating a time shift amount of each of the devices based on each of the received reference signals output from the speaker and the received sound signals, and separating the plurality of signal signals input into the microphone of the plurality of devices based on the calculated time shift amount.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: April 21, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Ryoichi Takashima, Yohei Kawaguchi, Takashi Sumiyoshi, Masahito Togami
  • Patent number: 10339381
    Abstract: A control apparatus is configured to execute: acquisition processing of acquiring, from at least one data acquisition apparatus, as data on a second object, time series data on a series of pieces of information on the second object that has been collected since the at least one data acquisition apparatus detected the second object; determination processing of determining whether or not the first and the second object are identical to each other based on information on the first and the second object; and storage processing of storing, when the determination processing results that the first and the second object are/aren't identical to each other, the data on the second object and the data on the first object in association with/without each other, and when the determination processing results in a determination that the first object and the second object are not identical to each other.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: July 2, 2019
    Assignee: HITACHI, LTD.
    Inventors: Takashi Sumiyoshi, Yoshitaka Hiramatsu, Masahito Togami
  • Patent number: 10317380
    Abstract: A chromatograph mass spectrometer has a function that: based on a compound table in which an elution time range and a measurement ion is described for respective compounds, divides an overall measurement time into multiple segments and assigns one or more compounds to each segment; determines an event time for each compound by dividing a previously given measurement loop time in accordance with a number of compounds belonging to the respective segments; and determines a dwell time, which is a data collection time for each ion, based on the event time and the number of ions to be measured for each compound; the chromatograph mass spectrometer allowing an analysis operator to designate whether or not to perform a high-sensitivity analysis for each compound.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: June 11, 2019
    Assignee: SHIMADZU CORPORATION
    Inventor: Takashi Sumiyoshi
  • Publication number: 20190126488
    Abstract: A robot dialogue system includes a robot with a processor and memory that communicates with a user and a dialogue server with a processor and memory that controls the robot. From a user inquiry the robot calculates speech content and a confidence factor and transmits the speech content and the confidence factor to the dialogue server, which stores an action and a confidence factor corresponding to the speech content in state information. The dialogue server selects a new action having the highest confidence factor in the state information, calculates a cost incurred when the new action is implemented from the robot's present state, selects a combination of candidates excluding the highest confidence factor action as a new candidate of action, calculates a cost incurred when the new candidate of action is implemented, and selects an action or a candidate of action with the lowest cost as a new action.
    Type: Application
    Filed: October 30, 2018
    Publication date: May 2, 2019
    Applicant: HITACHI, LTD.
    Inventor: Takashi SUMIYOSHI
  • Publication number: 20190086372
    Abstract: A GC/MS measurement under an ionization by an electron ionization method is performed for a target sample (S1). Peaks are detected on a chromatogram based on obtained data, and a mass spectrum corresponding to each peak is compared with a compound database to identify a compound (S2-S4). A compound identified with a low degree of similarity is extracted as the measurement compound. For this compound, a measurement window including the retention time of a peak corresponding to the compound is set, and a control program for performing an ionization by a chemical ionization method only within the measurement window is created (S5-S8).
    Type: Application
    Filed: March 7, 2016
    Publication date: March 21, 2019
    Applicant: SHIMADZU CORPORATION
    Inventors: Yuki SAKAMOTO, Takashi SUMIYOSHI, Yoshiro HIRAMATSU
  • Publication number: 20190035418
    Abstract: A sound signal processing method and device are provided for separating sounds of the respective sound sources even when sounds are recorded asynchronously by a plurality of devices. Specifically, the present invention comprises the steps of instructing each of the plurality of devices to output a reference signal of a different frequency, receiving each of the reference signals output from the speaker of the plurality of devices according to the instruction, receiving sound signals in which each of the reference signals output from the speaker of the plurality of devices is input into the microphone of the plurality of devices, calculating a time shift amount of each of the devices based on each of the received reference signals output from the speaker and the received sound signals, and separating the plurality of signal signals input into the microphone of the plurality of devices based on the calculated time shift amount.
    Type: Application
    Filed: October 9, 2015
    Publication date: January 31, 2019
    Inventors: Ryoichi TAKASHIMA, Yohei KAWAGUCHI, Takashi SUMIYOSHI, Masahito TOGAMI