Patents by Inventor Ichiro Okajima

Ichiro Okajima 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: 20130073577
    Abstract: A statistical information generation system includes a condition input section, an extracting section that extracts unidentifiable location data and unidentifiable attribute data, a magnification factor adding section that adds a magnification factor to the unidentifiable attribute data, a statistics section that calculates statistical data by using the unidentifiable location data, the unidentifiable attribute data, and the magnification factor, a counting section that counts the unidentifiable location data, a determining section that determines a magnitude of the number of pieces of data, and an output section that hides the statistical data to output the statistical data.
    Type: Application
    Filed: April 6, 2011
    Publication date: March 21, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Masayuki Terada, Ichiro Okajima, Yuki Oyabu
  • Patent number: 8386452
    Abstract: A data join system of the present invention includes a table determination unit 11 selecting a record b as a join target if a value of a key item included in a record a acquired by a data write unit from a table A falls within a first predetermined range set based on a value of a key item included in the record b stored in a table B, a data join unit joining the selected record b with the record a to generate a record c, and a data write unit storing the record c into a table C. Thus, the success rate of data join can be improved while the accuracy of join of the record b and the record a to be joined is improved.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: February 26, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Daisuke Ochi, Ichiro Okajima, Hiroshi Kawakami, Toshihiro Suzuki, Manhee Jo, Tomohiro Nagata, Motonari Kobayashi, Yuki Oyabu
  • Patent number: 8359046
    Abstract: A controller apparatus, when it receives packets addressed to a mobile terminal, implements paging control in which it transmits a paging notification packet to a paging area of the mobile terminal, so as to obtain location information on the mobile terminal and to determine a forwarding destination of the packets. The controller apparatus includes a paging area forming unit having a plurality of algorithms for forming the paging area. The paging area forming unit is configured to form the paging area of the mobile terminal by an algorithm specified by the mobile terminal.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: January 22, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masahiro Inoue, Ichiro Okajima, Narumi Umeda
  • Publication number: 20120265580
    Abstract: A demand prediction device and a demand prediction method capable of performing demand prediction with higher accuracy. A demand prediction server includes a data acquisition unit acquiring estimated population information that indicates population estimated in a predetermined area, a spatial weighing unit acquiring relative distance information that indicates a distance between a position of a prediction reference area included in the predetermined area and a position of a prediction target area for which the number of demands is to be predicted with the prediction reference area as a reference, and a regression analysis unit and a demand prediction unit for, by performing regression analysis using the estimated population information acquired by the data acquisition unit and a residual based on the relative distance information acquired by the spatial weighing unit, predicting the number of demands in the prediction target area.
    Type: Application
    Filed: November 16, 2010
    Publication date: October 18, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Motonari Kobayashi, Daizo Ikeda, Sadanori Aoyagi, Tooru Odawara, Ichiro Okajima, Tomohiro Nagata
  • Publication number: 20120231727
    Abstract: An association unit associates earthquake disaster information that a governmental agency, a municipality, or the like publishes with base station data including position information of base stations. A base station priority calculation unit, based on an association result by the association unit and the estimated number of users that are present in coverage of each of the base stations, assigns priority for recovery measures at the time of an earthquake disaster to the base stations, and causes a display unit to display the priority of the base stations thus calculated. Thus, it becomes possible to easily assign the priority of the base stations based on the earthquake disaster information that a governmental agency, a municipality, or the like publishes.
    Type: Application
    Filed: November 2, 2010
    Publication date: September 13, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Tomohiro Nagata, Ichiro Okajima, Masashi Yamashita, Yuki Oyabu
  • Publication number: 20120221231
    Abstract: To promptly provide useful person trip information, a location information analysis device (600) includes a selection module (601) that selects a starting point section and an end point section, a point data input module (602) that inputs the point data over a plurality of points of time about a plurality of users, a frequent appearance area extraction module (603) that extracts areas (frequent appearance areas) where the point data are densely congested in excess of a predetermined criterion on two-dimensional map data, a user trajectory extraction module (604) that finds trajectories between the frequent appearance areas for each of the users based on time-series transition of a relative location of the point data of each of the users in relation to the frequent appearance areas and extracts trajectories from the starting point section to the end point section among the trajectories between the frequent appearance areas of each of the users, and a user number calculation module (605) that calculates number
    Type: Application
    Filed: October 13, 2010
    Publication date: August 30, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Tomohiro Nagata, Ichiro Okajima, Motonari Kobayashi, Yuki Oyabu
  • Publication number: 20120220274
    Abstract: To approximate how many people from which area flow into a specific target area during a specific target time period, a location information analysis device includes: a point data reading module that reads point data containing time information indicating time within the target time period for all users; a target area point data extraction module that extracts, from the point data, point data containing location information indicating a location within the target area as target area point data; an address information reading module that reads address information about a user; a first combining module that combines the address information and the target area point data of the corresponding user; and an address information aggregation module that performs aggregation of number of inflow users flowing into the target area during the target time period for each of the flow-from areas based on the target area point data containing the address information.
    Type: Application
    Filed: October 13, 2010
    Publication date: August 30, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Tomohiro Nagata, Ichiro Okajima, Motonari Kobayashi
  • Publication number: 20120218150
    Abstract: To provide a management server, population information calculation management server, non-populated area management method, and population information calculation method capable of easily specifying a depopulated area and calculating accurate population information, a GPS information collection unit (519) collects location information of mobile equipments (100) and stores them into a GPS information accumulation unit (514). Then, a depopulated area specifying unit (516) specifies a non-populated area in a given area (for example, an area (sector influence diagram) designated by an operator) using the location information accumulated in the GPS information accumulation unit (514). The population distribution can be thereby accurately calculated using the non-populated area. For example, there can be a case where the population distribution in a given area is not uniform within the area.
    Type: Application
    Filed: October 21, 2010
    Publication date: August 30, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Oyabu, Ichiro Okajima, Tomohiro Nagata
  • Publication number: 20120185299
    Abstract: A household member number distribution estimation apparatus of the present invention includes a subscriber information acquisition unit that acquires subscriber information that is information regarding subscribers of mobile terminals of a specific carrier in a region within a predetermined range and with which user IDs and main line numbers of the mobile terminals are associated, a household terminal number extraction unit that, by referring to the subscriber information, extracts the number of household terminals that is the number of the mobile terminals for each main line number, a household number extraction unit that extracts the number of households per number of terminals, and a household number estimation unit that, by using a terminal subscription rate in the region within the predetermined range to correct the number of households per number of terminals, estimates the number of households per number of household members that is the number of households for each of the number of household members c
    Type: Application
    Filed: September 3, 2010
    Publication date: July 19, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Motonari Kobayashi, Ichiro Okajima, Tomohiro Nagata
  • Publication number: 20120172057
    Abstract: A roadside portion traffic amount calculation device includes an acquisition unit that acquires positional information, a distribution determination unit that refers to road information stored in a road information storage unit and, based on a positional relationship between locations of users indicated by the positional information and a road, determines a passage roadside portion that is a roadside portion in which the locations of the users are distributed for each piece of the positional information, a summarizing unit that counts the number of pieces of the positional information for which the passage roadside portion has been determined by the distribution determination unit for each of the roadside portions and summarizes a roadside portion traffic amount that is an amount of user traffic on each of the roadside portions, and a processing result output unit that outputs the roadside portion traffic amount summarized by the summarizing unit.
    Type: Application
    Filed: August 10, 2010
    Publication date: July 5, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Motonari Kobayashi, Ichiro Okajima, Tomohiro Nagata, Atsushi Murase
  • Publication number: 20120150490
    Abstract: A communication system and a statistical processing method capable of performing statistical processing of user attribute distribution information on a sector-by-sector basis. An acquisition unit acquires, from each of a plurality of mobile equipments, a sector ID of a sector where located and a user identifier being, which is identification information of a mobile equipment, and the subscriber location information storage unit stores the acquired sector IDs in association with mobile equipments. Then, the sector level attribute distribution derivation unit aggregates the number of mobile equipments for each attribute of mobile equipments on a sector basis indicated by the sector ID based on subscriber information stored in the subscriber attribute information storage unit and location information stored in the subscriber location information storage unit. It is thereby possible to grasp statistical information for each attribute of mobile equipments on a sector-by-sector basis.
    Type: Application
    Filed: August 16, 2010
    Publication date: June 14, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Oyabu, Toshihiro Suzuki, Ichiro Okajima, Tomohiro Nagata
  • Publication number: 20120135749
    Abstract: To effectively analyze location information of a large number of users that is obtained easily and to quickly collect data with regard to macroscopic user tendencies. A location information analysis device includes: an input module that is adapted to input point data across a plurality of time points with regard to a plurality of users, the point data including location information indicating a position of a user, time information indicating time at which the location information is obtained, and user identifier information with regard to the user; a haunt area extraction module that extracts an area, as a haunt area where the plurality of users frequently haunt, the area in which the point data is concentrated at or more than a predetermined level, based on a distribution status of the input point data plotted on two dimensional map data; and a storage module that stores the extracted haunt area information.
    Type: Application
    Filed: March 25, 2010
    Publication date: May 31, 2012
    Applicant: NTT DOCOMO, Inc.
    Inventors: Tomohiro Nagata, Ichiro Okajima, Hiroshi Kawakami, Manhee Jo, Daisuke Ochi, Toshihiro Suzuki, Motonari Kobayashi, Yuki Oyabu
  • Publication number: 20120122483
    Abstract: In a location identifying method, the sight of users of mobile communication terminals is estimated by calculating directions of the users based on position information of the mobile communication terminals, and the location where the lines of sight of the users are concentrated is identified based on the estimated sight. By identifying a location where the lines of sight of the users of the mobile communication terminals are concentrated, it is possible to identify an installation location where high advertising effectiveness can be achieved. Moreover, since only acquisition of the position information of the mobile communication terminals is needed, it is possible to efficiently identify an installation location of an advertisement, etc. Therefore, it is possible to efficiently identify an installation location of an advertisement or a billboard where high advertising effectiveness can be achieved.
    Type: Application
    Filed: June 30, 2010
    Publication date: May 17, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Sadanori Aoyagi, Tomohiro Nagata, Ichiro Okajima
  • Publication number: 20120094686
    Abstract: For easily and quickly collecting data regarding macroscopic population fluidity, and easily and quickly obtaining the survey results, an RNC includes: a positioning module that measures the position of a mobile station; and an RNC communication controller that transmits location information of the mobile station that the positioning module measures, identification information of the mobile station, and time information when the positioning module measures the position of the mobile station, to an information analyzing apparatus, and the information analyzing apparatus includes: a location extractor that extracts movement information indicating a moving situation of the mobile station at a given time and including information corresponding to at least the location information based on the location information, the identification information and the time information; and an output module that calculates total movement information by integrating the movement information and outputs the total movement informatio
    Type: Application
    Filed: March 29, 2010
    Publication date: April 19, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Toshihiro Suzuki, Ichiro Okajima, Hiroshi Kawakami, Manhee Jo, Daisuke Ochi, Tomohiro Nagata, Motonari Kobayashi, Yuki Oyabu
  • Publication number: 20120077473
    Abstract: A communication system aimed at easily and quickly collecting data regarding macroscopic population distribution, and easily and quickly obtaining survey results. An RNC of a communication system includes a signal-counting module that counts the number of signals indicating a quantity of signals transmitted and received between a mobile station and a BTS. An information analysis device includes a population distribution calculation module that calculates population distribution based on the number of the signals that the signal-counting module counts, and an output module that outputs the population distribution that the population distribution calculation module calculates.
    Type: Application
    Filed: March 26, 2010
    Publication date: March 29, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Toshihiro Suzuki, Ichiro Okajima, Hiroshi Kawakami, Manhee Jo, Daisuke Ochi, Tomohiro Nagata, Motonari Kobayashi, Yuki Oyabu
  • Publication number: 20120077517
    Abstract: A mobile device and a communication method that enable to collect location information without imposing a load on the mobile device and the network. In the mobile device, a communication module receives a notification signal including a cell ID from a base station and a determining module determines whether the cell ID included in the notification signal corresponds to a cell ID stored in a storage module. A positioning module performs measurements of the location and the communication module notifies the location information thus measured. Thereby, a management center is capable of collecting the location information of the mobile device located in a given area and it is possible to realize processing to efficiently collect the location information by reducing a load on the mobile device and the network.
    Type: Application
    Filed: March 25, 2010
    Publication date: March 29, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Toshihiro Suzuki, Ichiro Okajima, Hiroshi Kawakami, Manhee Jo, Daisuke Ochi, Tomohiro Nagata, Motonari Kobayashi, Yuki Oyabu
  • Publication number: 20120064914
    Abstract: For easily and quickly collecting data regarding macroscopic population distribution, and easily and quickly obtaining the survey results, an RNC includes: a positioning module that measures a position of a mobile station in response to a given trigger event; an RNC communication controller that transmits location information as information regarding the position of the mobile station that the positioning module measures, identification information as an identifier that makes the mobile station uniquely identifiable; and time information as information regarding a time when the positioning module measures the position of the mobile station, to an information analyzing apparatus, and the information analyzing apparatus includes: a location calculation module that calculates location information regarding a location in which the mobile station is located at a given time based on the location information, the identification information, and the time information; and an output module that calculates distribution
    Type: Application
    Filed: March 26, 2010
    Publication date: March 15, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Toshihiro Suzuki, Ichiro Okajima, Hiroshi Kawakami, Manhee Jo, Daisuke Ochi, Tomohiro Nagata, Motonari Kobayashi, Yuki Oyabu
  • Publication number: 20120066266
    Abstract: Provided is a mesh data creation method allowing appropriate expression of population densities while making a balance between accuracy and granularity. In the mesh data creation method, when the number of samples in a region of reference mesh data with a predetermined size is not less than a threshold, divided mesh data is created by dividing the region of the reference mesh data. Namely, each portion with a high population density can be expressed by a fine region of mesh data and each portion with a low population density by a coarse region of mesh data. The above makes it feasible to prevent meshes from becoming too fine to ensure accuracy or, conversely, from becoming too coarse to maintain granularity, thereby resulting in failing to achieve a detailed grasp of population densities, and thus to achieve appropriate expression of population densities while making a balance between accuracy and granularity.
    Type: Application
    Filed: March 23, 2010
    Publication date: March 15, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Motonari Kobayashi, Ichiro Okajima, Hiroshi Kawakami, Manhee Jo, Toshihiro Suzuki, Daisuke Ochi, Tomohiro Nagata, Yuki Oyabu
  • Publication number: 20120064915
    Abstract: A mobile station, a communication system, and a communication method that are capable of efficiently collecting location information of any user. A communicating module receives a positioning request including attribute specifying information from a management center, a determining module determines whether measurements of the location are necessary or not based on the attribute specifying information in the received positioning request and the attribute information stored in advance. Then, when the determining module determines that measurements of the location are necessary, a positioning module performs measurements of the location and sends location information thus measured to the management center. Accordingly, it is possible to collect the location information of the mobile station that agrees with an attribute that the management center desires and therefore, it is possible to provide an attentive service and the like based on the location information.
    Type: Application
    Filed: March 23, 2010
    Publication date: March 15, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Toshihiro Suzuki, Ichiro Okajima, Hiroshi Kawakami, Manhee Jo, Daisuke Ochi, Tomohiro Nagata, Motonari Kobayashi, Yuki Oyabu
  • Publication number: 20120066207
    Abstract: A data join system of the present invention includes a table determination unit 11 selecting a record b as a join target if a value of a key item included in a record a acquired by a data write unit from a table A falls within a first predetermined range set based on a value of a key item included in the record b stored in a table B, a data join unit joining the selected record b with the record a to generate a record c, and a data write unit storing the record c into a table C. Thus, the success rate of data join can be improved while the accuracy of join of the record b and the record a to be joined is improved.
    Type: Application
    Filed: May 10, 2010
    Publication date: March 15, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Daisuke Ochi, Ichiro Okajima, Hiroshi Kawakami, Toshihiro Suzuki, Manhee Jo, Tomohiro Nagata, Motonari Kobayashi, Yuki Oyabu