Patents by Inventor Daisuke Nitta
Daisuke Nitta 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: 20140045479Abstract: A communication control apparatus includes an acquirer that acquires operation information of a moving object having a shielded space therein, and a controller that controls at least one of a channel between a first base station installed in a car in the moving object and a second base station installed on each floor where the car is stoppable, transmission power of the first base station and transmission power of the second base station, and location information for locating a position of a mobile terminal for each floor where the car is stoppable, on the basis of the operation information.Type: ApplicationFiled: July 19, 2013Publication date: February 13, 2014Inventors: Yuki SHINADA, Daisuke Nitta, Yutaka Hamada, Takahiro Kawaguchi, Hiromitsu Kawai, Masanori Hashimoto
-
Patent number: 8611332Abstract: A communication apparatus comprises a processing information acquiring unit to acquire a processing delay time, a transmission information acquiring unit to acquire each transmission delay time, a collecting unit to collect each arrival time from nodes onward from each of the subordinated nodes, a calculating unit to calculate the time after distribution data is received by the self-node until it arrives at each of the terminals as the arrival time from the home node onward for each of the nodes through which the distribution data is routed based on the processing delay time, the transmission delay times, and each the arrival time from the node onward, and a transmission control unit to control the transmission timing of the distribution data to at least one of the nodes based on the arrival times from the home node onward for each of the nodes.Type: GrantFiled: May 20, 2010Date of Patent: December 17, 2013Assignee: Fujitsu LimitedInventors: Tetsuo Tomita, Tomonori Kumagai, Daisuke Nitta
-
Patent number: 8516491Abstract: An algorithm in a multi-core processor having a plurality of cores for deciding processing allocation to each core to distribute the processing load thereof, and an efficient processing allocation algorithm simplified for software engineers are established. In order to achieve the above processing load distribution, the multi-core processor includes a plurality of basic modules divided into minimum configuration units, each having a uniform input/output format interface, so as to perform required processing contents in the overall processor. As an initial allocation, the above plurality of basic modules are allocated in distribution to the above plurality of cores, and subsequently, based on functional information of each core, the above plurality of initially allocated basic modules are relocated either periodically or at appropriate timing.Type: GrantFiled: March 17, 2008Date of Patent: August 20, 2013Assignee: Fujitsu LimitedInventors: Daisuke Nitta, Tomonori Kumagai, Kazunari Kobayashi
-
Patent number: 8432858Abstract: To provide a technique of making it possible to shorten a time taken by channel switching. Further, to provide a technique of enabling simplification of a channel switching procedure. A radio network controller for assigning, to each wireless terminal connected to a wireless network, one of an individual channel exclusively used by the wireless terminal and a common channel shared with at least one wireless terminal different from the wireless terminal as a communication channel, includes: a determination portion for determining that an individual channel is to be assigned to a wireless terminal; and an assignment portion for, when the assignment of the individual channel has been determined, assigning an individual channel resource secured and held before the determination to the wireless terminal.Type: GrantFiled: July 26, 2006Date of Patent: April 30, 2013Assignee: Fujitsu LimitedInventors: Kazunari Kobayashi, Tomonori Kumagai, Daisuke Nitta, Hajime Hasegawa
-
Patent number: 8364161Abstract: A controller which is assigned with the wireless resources for a plurality of wireless zones and a plurality of wireless base stations communicably connected to the controller, wherein the controller is operable to assign a part of the assigned wireless resources to the wireless zone formed by any of the wireless base stations. According to this, it is possible to introduce and run a great number of wireless base stations at a low cost without increasing or modifying the number of the superordinate devices such as RNC.Type: GrantFiled: October 28, 2008Date of Patent: January 29, 2013Assignee: Fujitsu LimitedInventors: Daisuke Nitta, Tetsuo Tomita, Tomonori Kumagai, Satoshi Watanabe, Kazunari Kobayashi
-
Publication number: 20120302253Abstract: The communication apparatus includes an IF that receives positioning information of a mobile user terminal from the mobile user terminal which is able to communicate by using at least one wireless communication scheme; and a controller that detects one or more communicable areas that allow communication by using the at least one wireless communication scheme, by determining which area includes a position indicated by the positioning information among a plurality of areas.Type: ApplicationFiled: March 23, 2012Publication date: November 29, 2012Applicant: FUJITSU LIMITEDInventors: Daisuke Nitta, Hiromitsu Kawai, Kazunari Kobayashi
-
Publication number: 20120243477Abstract: A wireless base station capable of communicating with a wireless terminal includes an analyzer that analyzes a pattern of a status of the wireless terminal; and a controller that provides the wireless terminal with information or a function based on the pattern.Type: ApplicationFiled: March 30, 2012Publication date: September 27, 2012Applicant: FUJITSU LIMITEDInventors: Yuki Shinada, Kazunari Kobayashi, Hiromitsu Kawai, Daisuke Nitta
-
Publication number: 20120173670Abstract: A base station accommodating a user terminal may include a user data management database configured to store user data, a security managing part configured to manage groups to which the user data are open, and a user data managing part configured to manage the user data. When the user data managing part receives a request to send user data from a Web application server and a group, included in the request and to which the requested user data are open, is included within the groups managed by the security managing part, the user data managing part may send the requested user data to the Web application server.Type: ApplicationFiled: March 15, 2012Publication date: July 5, 2012Applicant: FUJITSU LIMITEDInventors: Yuki SHINADA, Kazunari KOBAYASHI, Daisuke NITTA
-
Publication number: 20120129447Abstract: A base station apparatus includes a relay unit that relays communication data transmitted and received between a user terminal wirelessly connected to the base station apparatus itself, and a server apparatus connected to the base station apparatus itself through a public network; an extraction unit that extracts communication content information indicating content of communication between the user terminal and the server apparatus, from the communication data relayed by this relay unit; a condition obtaining unit that obtains a filtering condition for the user terminal; an analysis unit that filters a plurality of pieces of the communication content information extracted by the extraction unit, according to the filtering condition obtained by the condition obtaining unit; and a notification unit that notifies a wireless carrier network of communication content information obtained by the analysis unit applying the filtering condition.Type: ApplicationFiled: January 30, 2012Publication date: May 24, 2012Applicant: FUJITSU LIMITEDInventors: Daisuke NITTA, Yuki SHINADA, Kazunari KOBAYASHI
-
Patent number: 8155691Abstract: A base station accommodation method and mobile communication system which allows the installation of many micro-miniature BTS devices are provided. The mobile communication system includes a plurality of base stations which accommodate a plurality of mobile terminals respectively; a plurality of first base station control devices, each of which accommodates a predetermined number of base stations out of the plurality of base stations; and a second base station control device which accommodates the plurality of first base station control devices, wherein each of the plurality of first base station control devices comprises, for supporting information identifying a mobile terminal, a mobile terminal data base to store identification information which identifies a base station to which the mobile terminal is subordinate, and a station data base to store an address of the base station.Type: GrantFiled: October 29, 2008Date of Patent: April 10, 2012Assignee: Fujitsu LimitedInventors: Daisuke Nitta, Tetsuo Tomita, Tomonori Kumagai, Satoshi Watanabe, Kazunari Kobayashi
-
Patent number: 8112113Abstract: A mobile terminal includes a reception unit to receive, from at least one of a plurality of communication systems, an initial beacon containing information for establishing communication according to each of the plurality of communication methods, a request unit to generate a request by use of the initial beacon to transmit the request to the at least one of the plurality of communication systems, and a determination unit to determine, based on information as a response to the request, the communication method and the frequency band, which are to be used in a time zone by the mobile terminal.Type: GrantFiled: October 16, 2009Date of Patent: February 7, 2012Assignee: Fujitsu LimitedInventors: Yuki Shinada, Daisuke Nitta, Tetsuo Tomita, Tatsuru Nakagaki, Tomonori Kumagai
-
Patent number: 8068512Abstract: A data center includes an individual storage unit having storage areas for respective user apparatuses, a shared storage unit having a storage area for sharing by the user apparatuses, a unit configured to store data received from an external node in one of the individual storage unit and the shared storage unit that is selected according to predetermined criteria, a unit configured to generate a data arrangement list according to statistics of the received data and predetermined cache data arrangement conditions, and a unit configured to transmit an instruction signal to at least one of the shared storage unit and the individual storage unit according to the data arrangement list to cause data stored in the at least one of the shared storage unit and the individual storage unit to be transferred to a cache server provided on a core network or on a radio access network.Type: GrantFiled: August 21, 2007Date of Patent: November 29, 2011Assignee: Fujitsu LimitedInventors: Daisuke Nitta, Tomonori Kumagai, Kazunari Kobayashi
-
Publication number: 20110275362Abstract: In a communication system, an upper-level carrier has communication functions for both first and second sessions. A first communication unit communicates with the upper-level carrier through a first communication session established therewith. A second communication unit communicates with the upper-level carrier through a second communication session established therewith. A communication control unit controls the first and second communication units. The communication control unit disconnects the first communication session and directs a signal intended for the first communication session to the second communication session, so that the signal is delivered to the upper-level carrier by using the second communication session as a detour.Type: ApplicationFiled: March 2, 2011Publication date: November 10, 2011Applicant: FUJITSU LIMITEDInventors: Daisuke NITTA, Yuki SHINADA, Kazunari KOBAYASHI
-
Publication number: 20110261683Abstract: In a communications system, a first upper node performs communication through a first communication session, and a second upper node performs communication through a second communication session. An upper communication control unit controls those upper nodes. A first communication unit communicates with the first upper node through the first communication session established therewith. A second communication unit communicates with the second upper node through the second communication session established therewith. A communication control unit controls those communication units. The communication control unit and the upper communication control unit perform communication path switching so as to use the second communication session to transport a signal intended for the first communication session, when the first communication sessions is disrupted, or when the number of existing first communication sessions has reached an upper limit that the first upper node can handle.Type: ApplicationFiled: February 28, 2011Publication date: October 27, 2011Applicant: FUJITSU LIMITEDInventors: Daisuke NITTA, Hiromitsu KAWAI, Tadanori YOKOSAWA
-
Publication number: 20110256860Abstract: A wireless base station includes a communicator that performs wireless communication with a subordinate terminal, using any one among various types of wireless channels; and a processor to control the wireless base station in accordance with a process including: analyzing a utilization state of the wireless channel used by the terminal; and controlling information delivered to the terminal, according to the analyzing results.Type: ApplicationFiled: June 30, 2011Publication date: October 20, 2011Applicant: FUJITSU LIMITEDInventors: Daisuke NITTA, Tomonori KUMAGAI
-
Patent number: 8041350Abstract: It administers a plurality of wireless base stations grouped into a plurality of groups, and performs the processing about the management, control and maintenance of the wireless base stations selectively for each of the groups. This enables the efficient management, control and maintenance processing of the wireless base stations.Type: GrantFiled: October 28, 2008Date of Patent: October 18, 2011Assignee: Fujitsu LimitedInventors: Daisuke Inagaki, Noboru Hasegawa, Takeshi Masubuchi, Daisuke Nitta, Tetsuo Tomita, Tomonori Kumagai, Satoshi Watanabe, Kazunari Kobayashi
-
Publication number: 20100315998Abstract: A communication apparatus comprises a processing information acquiring unit to acquire a processing delay time, a transmission information acquiring unit to acquire each transmission delay time, a collecting unit to collect each arrival time from nodes onward from each of the subordinated nodes, a calculating unit to calculate the time after distribution data is received by the self-node until it arrives at each of the terminals as the arrival time from the home node onward for each of the nodes through which the distribution data is routed based on the processing delay time, the transmission delay times, and each the arrival time from the node onward, and a transmission control unit to control the transmission timing of the distribution data to at least one of the nodes based on the arrival times from the home node onward for each of the nodes.Type: ApplicationFiled: May 20, 2010Publication date: December 16, 2010Applicant: FUJITSU LIMITEDInventors: Tetsuo TOMITA, Tomonori KUMAGAI, Daisuke NITTA
-
Publication number: 20100034097Abstract: An information distribution apparatus which is connected to each of a plurality of communication systems for performing radio communication with a mobile terminal through a network by using each of a plurality of communication methods having a range in which available frequencies overlap and manages information on communication environments of the communication systems.Type: ApplicationFiled: October 16, 2009Publication date: February 11, 2010Applicant: FUJITSU LIMITEDInventors: Daisuke Nitta, Tetsuo Tomita, Tomonori Kumagai, Yuki Shinada, Tatsuru Nakagaki
-
Publication number: 20100035553Abstract: A mobile terminal includes a reception unit to receive, from at least one of a plurality of communication systems, an initial beacon containing information for establishing communication according to each of the plurality of communication methods, a request unit to generate a request by use of the initial beacon to transmit the request to the at least one of the plurality of communication systems, and a determination unit to determine, based on information as a response to the request, the communication method and the frequency band, which are to be used in a time zone by the mobile terminal.Type: ApplicationFiled: October 16, 2009Publication date: February 11, 2010Applicant: FUJITSU LIMITEDInventors: Yuki Shinada, Daisuke Nitta, Tetsuo Tomita, Tatsuru Nakagaki, Tomonori Kumagai
-
Publication number: 20090311990Abstract: A base station according to an embodiment may include a wireless function unit to wirelessly communicate with a user equipment; a transmission/reception unit to wirelessly communicate with the user equipment; and a control unit to receive set-up data from the user equipment via the transmission/reception unit to set up the wireless function unit.Type: ApplicationFiled: March 24, 2009Publication date: December 17, 2009Applicant: FUJITSU LIMITEDInventors: Daisuke NITTA, Tetsuo TOMITA