Patents Assigned to Hitachi Information & Telecommunication Engineering, Ltd.
  • Publication number: 20210084612
    Abstract: A device control system includes a control request issuing unit for issuing a control request defining a position of a moving object and the device control according to operation of a user; a determination plan generation unit configured to, based on the control request, generating a condition; a determination unit for determining whether a condition of the control request related to the moving object is satisfied and issuing an identifier of the control request; at least one condition determination generated by the determination plan generation unit; an execution plan generation unit for generating a control execution unit configured to receive the identifier of the control request, identifying a device that is a control target according to a control rule defined in the control request, and transferring a control command according to a control procedure, and one or a plurality of control execution units generated by the execution plan generation unit.
    Type: Application
    Filed: February 18, 2019
    Publication date: March 18, 2021
    Applicant: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Akinori ASAHARA, Nobuo SATO
  • Publication number: 20210056793
    Abstract: Provided is a technique for reducing erroneous detection by outputting highly reliable results regarding the number of people. A mobile object measurement system of the present disclosure is a system for extracting the number of people on the basis of the measurement results of measurement devices that are arranged in the entire measurement area, and is configured to extract measurement devices that are measuring a predetermined area, extract the number of people present in the predetermined area using a plurality of combinations of measurement devices including some of the extracted devices or a plurality of combinations of measurement devices having different system start times, and perform a voting process for each extracted number of people for each combination so as to determine the most reliable number of people as a correct number of people (see FIG. 1).
    Type: Application
    Filed: December 21, 2016
    Publication date: February 25, 2021
    Applicant: HITACHI INFORMATION AND TELECOMMUNICATION ENGINEERING, LTD.
    Inventors: Nobuo Sato, Akinori Asahara
  • Patent number: 10924611
    Abstract: An evaluation criterion for a call performed between an operator and a customer is set without taking time and effort. A voice recognition system includes a call recording unit that records a call performed between a customer and an operator, a voice recognition unit that recognizes the call recorded by the call recording unit and a value of non-verbal information indicating a feature of a calling party in the call and accumulates a recognized result in a storage unit, and a voice recognition result managing unit that sets a reference value for evaluating the calling party on the basis of the value of the non-verbal information included in the recognized result.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: February 16, 2021
    Assignee: HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD.
    Inventors: Yuko Kanetsuki, Takashi Sugiyama, Terumi Saito
  • Patent number: 10855837
    Abstract: The sections of the call unnecessary for reproduction are grasped without wasting time and labor. The call recording system includes a call information entry unit to enter operation information of call terminals which is acquired by a call control unit into a terminal operation information table; a recorded information entry unit to enter recorded information of the call which are acquired by a call recording unit into a recorded information table; and a call information reproduction unit to recognize sections unnecessary for reproduction of the recorded information based on the operation information of the call terminals so as to display a reproduction screen including a result on the recognized sections on a display section.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: December 1, 2020
    Assignee: HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD.
    Inventors: Terumi Saito, Takashi Sugiyama
  • Patent number: 10846282
    Abstract: In a behavior characteristic amount analysis system, a necessary storage capacity is saved and reduced upon a statistical process performed on a large amount of measured data from a sensor or the like and the analysis of characteristics of a target to be measured. A behavior characteristic amount analyzing server includes a central processing unit and a storage device. The storage device holds a sensor table group of sensor tables holding sensor data from the sensor, and a pivot table of pivot tables aggregated based on the sensor table group and one or a combination of the moving object, time, and a location. The central processing unit generates the pivot tables based on information of the sensor tables for each of predetermined time periods, causes the generated pivot tables to be stored in the storage device, and deletes the sensor tables used for the generation of the pivot tables.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: November 24, 2020
    Assignee: HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD.
    Inventors: Nobuo Sato, Akinori Asahara
  • Publication number: 20200042511
    Abstract: In a behavior characteristic amount analysis system, a necessary storage capacity is saved and reduced upon a statistical process performed on a large amount of measured data from a sensor or the like and the analysis of characteristics of a target to be measured. A behavior characteristic amount analyzing server includes a central processing unit and a storage device. The storage device holds a sensor table group of sensor tables holding sensor data from the sensor, and a pivot table of pivot tables aggregated based on the sensor table group and one or a combination of the moving object, time, and a location. The central processing unit generates the pivot tables based on information of the sensor tables for each of predetermined time periods, causes the generated pivot tables to be stored in the storage device, and deletes the sensor tables used for the generation of the pivot tables.
    Type: Application
    Filed: March 5, 2018
    Publication date: February 6, 2020
    Applicant: HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD.
    Inventors: Nobuo SATO, Akinori ASAHARA
  • Patent number: 10522149
    Abstract: An information processor requests a recognition result manager to transmit recording information about a call including a keyword and a recognition result of speech recognition using an extension number as a key. The manager transmits the recording information about the call including the keyword corresponding to the extension number and the recognition result of the speech recognition to the processor. The processor displays a recognition result of speech recognition of the call including the keyword on a display unit. Upon receiving an input of an instruction to perform speech playback, the processor transmits recording information in association with text displayed on the display unit to a recorder. The recorder transmits speech data corresponding to the recording information to the processor. The processor plays back speech data corresponding to the recording information.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: December 31, 2019
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Yo Naka, Takashi Sugiyama
  • Patent number: 10395127
    Abstract: To provide a technology for accurately estimating the state change of an observation object, there are included a step for acquiring first sensor information that is obtained by observation of a state of an observation object at a first time by a periphery monitoring sensor (S100), steps for identifying the kind of the observation object based on the first sensor information and reading a purpose attribute of the observation object and an environmental factor from a purpose attribute storage unit that stores a purpose attribute that shows a use purpose or an observation purpose of the observation object and an environmental factor that affects the state change of the observation object (S104, S105), a step for retrieving a plurality of finite state series corresponding to the kind of the observation object from a finite state series storage unit that stores a finite state series that corresponds to the kind of the observation object and specifies a series of a plurality of state changes accompanying the time
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: August 27, 2019
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventor: Toshiaki Uejima
  • Patent number: 10250744
    Abstract: A call and recorded information management server transmits a requested call identification ID for recognition and an incoming call number corresponding to the ID, to a voice recognition server, which searches for the recognition engine corresponding to the number of the received call, and adds the received ID to a recognition queue. The voice recognition server requests the call and recorded information management server to obtain recorded data by the received ID. The call and recorded information management server transfers the recorded data corresponding to the ID to the voice recognition server to perform voice recognition by the corresponding recognition engine on the recorded data corresponding to the call identification ID stored in the recognition queue, and stores the result as text data. Thus, the most appropriate voice recognition engine can be used and the recognition rate of voice recognition can be increased.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: April 2, 2019
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Takashi Sugiyama, Jumpei Yamaguchi, Yo Naka, Taketoshi Kurihana
  • Patent number: 10170120
    Abstract: A speech recognition server has a speech recognition engine, and a mode control table to hold a speech recognition mode for each call. The speech recognition engine has a mode management unit to designate a speech recognition mode for a decoder, and an output analysis unit to analyze recognition result data speech-to-text converted by speech recognition. The output analysis unit designates the speech recognition mode for the mode management unit in accordance with result of analysis of the recognition result data speech-to-text converted by the speech recognition. The mode management unit designates the speech recognition mode for the decoder in accordance with the designation with the output analysis unit. Upon speech recognition of call data, it is possible to suppress hardware resource consumption while improve users' satisfaction.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: January 1, 2019
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventor: Hidehisa Arikawa
  • Patent number: 10116936
    Abstract: The present invention makes moving-image coding and decoding with low power consumption possible even when a Context-based Adaptive Binary Arithmetic Coding (CABAC) process is used. A preprocess for coding an image is executed for each macro block (MB), the MB information that is the result of the process is written into a storage unit in the order in which the MBs were processed, and the MB information stored in the storage unit is read out in order of raster and the MBs are coded. When the coded image is decoded, the MBs constituting the coded image are decoded in order of raster, the MB information that is the result of the decoded process is stored in the storage unit, and a decoded information readout process that is a post-process for decoding the image is executed in the order in which the MBs were processed.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: October 30, 2018
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Yuusuke Yatabe, Hironori Komi, Yoshimasa Kashihara, Kazunori Saito
  • Patent number: 10091392
    Abstract: The present invention provides a technique capable of obtaining image data without a missing part even in a case where a business form is not rectangular. An image reading device including a reading unit which reads an image of a business form, the image reading device includes a skew angle calculation unit which calculates a skew angle used for correcting inclination of the business form according to image data of the image read by the reading unit, a circumscribed region detection unit which generates an image after a first skew correction obtained by rotating the image according to the skew angle, scans the generated image after the first skew correction, and thus detects a circumscribed quadrangle circumscribed around the image of the business form and included in the image after the first skew correction, and an image cutout unit which cuts out a business-form image after cutout from the image read by the reading unit, according to coordinates of four corner points of the circumscribed quadrangle.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: October 2, 2018
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Toyohiro Negami, Kazumi Suzuki
  • Patent number: 10063058
    Abstract: A power converter includes a plurality of converters which are connected in parallel to a DC power supply in which an operating point is changed in accordance with an output current or an output voltage. The plurality of converters include maximum power point tracking units for performing maximum power point tracking calculations of the DC power supply. Results of the maximum power point tracking calculations of the plurality of converters are unified between the plurality of converters and the plurality of converters are controlled based on the unified calculation result.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: August 28, 2018
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Takae Shimada, Fumikazu Takahashi, Kimiaki Taniguchi, Kosuke Abe
  • Patent number: 9991819
    Abstract: A power conversion system is capable of distinguishing easily and clearly between being interconnected to the power system and being in an isolated operation. The power conversion system converts DC power to AC power to interconnect with a power system and injects reactive power into a grid node for determining an isolated operation, including: a voltage detector that detects an output voltage at the grid node; a current detector that detects an output current at the grid node; a frequency measurement unit that measures a frequency of the output voltage at the grid node; a reactive-power measurement unit that measures reactive power at the grid node; and an isolated-operation determination unit that determines whether or not the power conversion system is in an isolated operation as disconnected from the power system. The isolated-operation determination unit includes a reactive-power-fluctuation determination unit that performs a first isolated-operation determination from the reactive power.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: June 5, 2018
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Tomoyuki Hatakeyama, Akira Kikuchi, Fumikazu Takahashi, Kimiaki Taniguchi, Hirofumi Oyamada
  • Patent number: 9904687
    Abstract: The present invention relates to a storage apparatus that executes de-duplication processing. Specifically, a storage apparatus includes a storing apparatus configured to provide a first storage area and a second storage area and a control unit. The control unit determines, on the basis of a result of comparison of a compression ratio of compressed data with a threshold, whether first duplication determination for determining whether data same as the data compressed without being stored in the first storage area is stored in the second storage area is executed or second duplication determination for determining whether data same as the data compressed after being stored in the first storage area is stored in the second storage area is executed. Further, the control unit changes the threshold on the basis of a state of the storage apparatus.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: February 27, 2018
    Assignees: Hitachi, Ltd., Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Hidehisa Arikawa, Naomitsu Tashiro, Mikito Ogata
  • Publication number: 20170211830
    Abstract: An air-conditioning planning unit: obtains air-conditioning control plan options indicating setting values for air-conditioning, a first room temperature of a space at a first control time, and a first air-conditioning power usage consumed at the first control time; calculates a second room temperature at a second control time with a first function whose explanatory variables include the first room temperature, the first air-conditioning power usage, and at least one of the options; calculates, for each of the options, room temperature and air-conditioning power usage in a time series by calculating a second air-conditioning power usage at the second control time with a second function whose explanatory variables include the first room temperature, the first air-conditioning power usage, and at least one of the options; calculates an evaluation indicator to evaluate a comfort level and cost; and selects an air-conditioning control plan from the options based on the evaluation indicator.
    Type: Application
    Filed: December 12, 2016
    Publication date: July 27, 2017
    Applicant: HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD.
    Inventors: Tadayoshi KOSAKA, Nobuhiro MATSUDAIRA, Isao KOBAYASHI, Yasutaka SATAKE, Kazuhiko KOYANAGI
  • Patent number: 9703497
    Abstract: In a storage system, a controller prevents the same chunk data from being stored in a storage device in an overlapped manner, on the basis of data block information showing an association of each data block and a plurality of chunk data configuring each data block, chunk group information showing an association of each chunk data not to be overlapped and a chunk group which each chunk data belongs to, and reference data block information showing an association of each chunk group and a data block having any chunk data belonging to each chunk group as constituent elements.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: July 11, 2017
    Assignees: Hitachi, Ltd., Hitachi Information & Telecommunications Engineering, Ltd.
    Inventors: Tomoki Higuchi, Naomitsu Tashiro, Hidehisa Arikawa
  • Patent number: 9680303
    Abstract: A power storage system is provided with charge switches, discharge switches, a bidirectional DC/DC converter and a power storage system controller connecting all the battery packs to an external circuit to achieve parallel charge and discharge, and the power storage system starts the charge by setting a rated charge current value per one battery pack to Iset and setting the rated charge current value Iset as an initial value of a charge current command value Iref(1), thereafter monitor the charge current of each of the battery packs after elapse of a predetermined time so as to subtract its maximum value Ibmax(1) from the charge current command value Iref(1), and add the rated charge current value Iset to result of subtraction Ierr (Iref(1)?Ibmax(1)) so as to set as a new charge current command value Iref(2) and carry out pre-charge in such a manner as to carry on the charge.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: June 13, 2017
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Fumikazu Takahashi, Yoshihide Takahashi, Yusuke Katsuyama, Kimiaki Taniguchi, Akinori Uchida, Masahiro Hamaogi, Susumu Nagafuchi
  • Patent number: 9658774
    Abstract: A controller in a storage system has chunk statistical information to be information including an overlap prevention effect value of each stored chunk data. For each storage target chunk data to be each chunk data obtained by dividing a data block of a storage target, the controller executes an overlap search to search the stored chunk data matched with the storage target chunk data in an overlap search range to be a part of a plurality of stored chunk data shown by the chunk statistical information and a chunk data group specified from the chunk statistical information and stores the storage target chunk data in the storage device, when the matched stored chunk data is not discovered in the overlap search.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: May 23, 2017
    Assignees: HITACHI, LTD., HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD.
    Inventor: Taizo Hori
  • Patent number: 9595841
    Abstract: In a DC-DC converter, a smoothing capacitor is connected between DC terminals of the switching circuit, and a smoothing capacitor and a voltage clamp circuit are connected between DC terminals of a switching circuit, the voltage clamp circuit including the switching device and the clamp capacitor. The smoothing capacitors are connected to the DC power sources) in parallel, respectively. The winding of the switching circuit is magnetically coupled to the winding of the switching circuit by the transformer. The DC-DC converter performs a discharging operation for discharging the clamp capacitor between at least one of the step-down operation and a step-up operation and a step-up operation performed thereafter.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: March 14, 2017
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Takae Shimada, Hiroyuki Shoji, Kimiaki Taniguchi, Kuniyoshi Watanabe