Patents by Inventor Koji Kurihara
Koji Kurihara 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).
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Patent number: 9823971Abstract: A data processing apparatus includes a storage unit configured to store plural data processing programs and a corresponding error processing program for when an error occurs with a first data processing program; and a processor configured to record to memory before executing the first data processing program, information of the error processing program that corresponds to the first data processing program; update and record in the memory after the first data processing program ends, information of a second data processing program scheduled to be executed next; and switch to any one among the first data processing program that corresponds to information recorded in the memory and the error processing program, when program processing is started next.Type: GrantFiled: September 25, 2014Date of Patent: November 21, 2017Assignee: FUJITSU LIMITEDInventors: Takahisa Suzuki, Koichiro Yamashita, Hiromasa Yamauchi, Koji Kurihara, Toshiya Otomo, Yuta Teranishi
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Publication number: 20170311222Abstract: A control device includes: a processor configured to: control a multihop communication path in a wireless network that includes a node group; when a first power storage speed of a target relay node in the node group is negative, calculate a first estimated time that is needed to reach a target power-storage value in a case where the target relay node is in a non-relay operating state; and in accordance with a length of the first estimated time calculated, change a state of the target relay node into the non-relay operating state or a stop state and change a state of another node, which is in the non-relay operating state, into a relay operating state.Type: ApplicationFiled: July 13, 2017Publication date: October 26, 2017Applicant: FUJITSU LIMITEDInventors: Koichiro Yamashita, Toshiya Otomo, Takahisa Suzuki, Koji Kurihara
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Patent number: 9800649Abstract: A data communication method includes registering as a group and by a first data processing device of plural data processing devices, at least one second data processing device capable of communicating with the first data processing device; transmitting by the first data processing device and to the data processing devices, a first reception request for data; transmitting by the first data processing device and to the at least one second data processing device, a second reception request for the data when there is no response to the first reception request from the first data processing devices; and transmitting the data to the second data processing device, by the first data processing device and based on a response from the second data processing device.Type: GrantFiled: December 3, 2013Date of Patent: October 24, 2017Assignee: FUJITSU LIMITEDInventors: Koji Kurihara, Koichiro Yamashita, Takahisa Suzuki, Hiromasa Yamauchi, Toshiya Otomo, Naoki Odate
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Patent number: 9794858Abstract: A data processing apparatus that is installed in plural in an installation area and processes data of each installation site, includes a processor that based on a combination of identification information included in calibration information respectively transmitted by calibration nodes and self-identification generation information that is included in the calibration information and for identifying the data processing apparatus among the plural data processing apparatuses, generates self-identification information; a memory device that retains the self-identification information; and a wireless communications circuit that receives the calibration information from the calibration nodes and performs transmission and reception of the data with an adjacent data processing apparatus provided in the installation area.Type: GrantFiled: January 23, 2015Date of Patent: October 17, 2017Assignee: FUJITSU LIMITEDInventors: Takahisa Suzuki, Koichiro Yamashita, Hiromasa Yamauchi, Koji Kurihara, Toshiya Otomo, Yuta Teranishi
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Patent number: 9794908Abstract: A communications apparatus is included among a communications apparatus group arranged in a given area and capable of communicating with a nearby communications apparatus. The communications apparatus includes a sensor that detects a given property at a location of the communications apparatus; communications circuitry that receives from the nearby communications apparatus, a detection result that is obtained by another communications apparatus, for the given property at the location of the other communications apparatus; a processor that determines whether a difference between the detection result received by the communications circuitry and a detection result of the sensor is a given amount or less.Type: GrantFiled: March 26, 2015Date of Patent: October 17, 2017Assignee: FUJITSU LIMITEDInventors: Koichiro Yamashita, Hiromasa Yamauchi, Takahisa Suzuki, Koji Kurihara, Toshiya Otomo
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Patent number: 9785586Abstract: An electronic computer includes a processor that executes a thread and an interrupt handler, and monitors load of the processor; and an interrupt controller that is configured to determine a notification timing for an interrupt request to call the interrupt handler, the notification timing being determined based on the load and an effect of execution of the interrupt handler on user performance of the thread under execution by the processor; and notify the processor of the interrupt request, based on the notification timing. When the load is higher than a threshold, the interrupt controller sets the notification timing for an interrupt request that does not affect the user performance, to be later than the notification timing for an interrupt request that affects the user performance. Based on notification of the interrupt request, the processor calls and executes the interrupt handler that corresponds to the interrupt request.Type: GrantFiled: April 30, 2014Date of Patent: October 10, 2017Assignee: FUJITSU LIMITEDInventors: Koji Kurihara, Koichiro Yamashita, Takahisa Suzuki, Hiromasa Yamauchi, Toshiya Otomo
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Publication number: 20170289251Abstract: A data processing method is executed by a processor, and includes detecting an addition request to add a first device to a first group that includes a plurality of devices; registering the first device into a main group in which devices of the first group are registered, the first device being registered when the first device does not belong to a second group that is different from the first group; registering the first device into a subgroup, when the first device belongs to the second group; and performing by the devices registered in the main group, distributed processing that includes a plurality of tasks.Type: ApplicationFiled: June 22, 2017Publication date: October 5, 2017Applicant: FUJITSU LIMITEDInventors: Koji KURIHARA, Koichiro YAMASHITA, Takahisa SUZUKI, Hiromasa YAMAUCHI, Toshiya OTOMO, Naoki ODATE
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Publication number: 20170289919Abstract: An observation system includes a plurality of nodes and an observation apparatus that collects information from the nodes using multi-hop communication for communicating with the nodes. The observation apparatus includes a link quality indicator (LQI) determination section and an output control section. The LQI determination section determines whether an LQI received from a node using the multi-hop communication is larger than a first threshold. When the LQI is larger than the first threshold, the output control section outputs a reduction command to the node associated with the LQI, the reduction command being a command to change the amount of transmission power in the multi-hop communication.Type: ApplicationFiled: June 15, 2017Publication date: October 5, 2017Applicant: FUJITSU LIMITEDInventors: KOJI KURIHARA, KOICHIRO YAMASHITA, TAKAHISA SUZUKI
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Patent number: 9772964Abstract: A multicore processor system includes core configured to detect a process assignment instruction; acquire a remaining time obtained by subtracting a processing time of interrupt processing assigned to an arbitrary core of a multicore processor from a period that is from a calling time of the interrupt processing to an execution time limit of the interrupt processing, upon detecting the process assignment instruction; judge if the remaining time acquired at the acquiring is greater than or equal to a processing time of processing defined to limit an interrupt in the process; and assign the process to the arbitrary core, upon judging that the remaining time is greater than or equal to the processing time of the processing defined to limit an interrupt in the process.Type: GrantFiled: October 1, 2015Date of Patent: September 26, 2017Assignee: FUJITSU LIMITEDInventors: Koichiro Yamashita, Takahisa Suzuki, Hiromasa Yamauchi, Koji Kurihara
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Patent number: 9755974Abstract: A communication device has: a sensor configured to output sensing data; a count signal communication part configured to count a count signal received from a control device directly or via another communication device and transmit the counted count signal and to store a value of the received count signal; and a data communication part configured to transmit the sensing data outputted by the sensor or the sensing data received from another communication device, in correspondence with the stored value of the count signal.Type: GrantFiled: January 19, 2015Date of Patent: September 5, 2017Assignee: FUJITSU LIMITEDInventors: Toshiya Otomo, Koichiro Yamashita, Takahisa Suzuki, Hiromasa Yamauchi, Koji Kurihara
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Patent number: 9749396Abstract: A data processing method is executed by a first data processing apparatus, and includes setting based on a size of data that is for executing a predetermined function, a first division number for dividing the data; producing groups of a second division number, each including N (a positive integer) elements by dividing the first division number; assigning a plurality of data processing apparatuses each capable of communicating with the first data processing apparatus, to the groups of the second division number; and assigning sub-data formed by dividing the data by the first division number, to the groups of the second division number.Type: GrantFiled: November 26, 2013Date of Patent: August 29, 2017Assignee: FUJITSU LIMITEDInventors: Koichiro Yamashita, Hiromasa Yamauchi, Takahisa Suzuki, Koji Kurihara
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Patent number: 9734104Abstract: A data transfer control apparatus includes a transferring unit that transfers data from a transfer source memory to a transfer destination memory, according to an instruction from a first processor; and a first processor configured to detect a process execute by the first processor, determine whether transfer of the data is urgent, based on the type of the detected process, and control the transferring unit or the first processor to transfer the data, based on a determination result.Type: GrantFiled: February 24, 2015Date of Patent: August 15, 2017Assignee: FUJITSU LIMITEDInventors: Hiromasa Yamauchi, Koichiro Yamashita, Sr., Takahisa Suzuki, Koji Kurihara
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Patent number: 9729626Abstract: A file sharing method executed by a first terminal, and including selecting from among multiple terminals including the first terminal and based on a remaining battery level of the terminals and a processing time of a shared process, a second terminal to execute the shared process for sharing multiple files among the terminals; and assigning the shared process to the second terminal.Type: GrantFiled: September 13, 2013Date of Patent: August 8, 2017Assignee: FUJITSU LIMITEDInventors: Toshiya Otomo, Koichiro Yamashita, Takahisa Suzuki, Hiromasa Yamauchi, Koji Kurihara, Naoki Odate, Tetsuo Hiraki
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Patent number: 9715407Abstract: A non-transitory, computer-readable recording medium stores a scheduling program that causes a first core among multiple cores to execute a process that includes selecting a core from the cores; referring to a storage unit to assign first software assigned to the selected core, to a second core different from the selected core and among the cores, the storage unit being configured to store for each core among the cores, identification information of software assigned to the core; and assigning second software to the selected core as a result of assigning the first software to the second core, the second software being assigned when an activation request for the second software is accepted.Type: GrantFiled: September 5, 2014Date of Patent: July 25, 2017Assignee: FUJITSU LIMITEDInventor: Koji Kurihara
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Patent number: 9716928Abstract: A given communications apparatus is included among plural first communications apparatuses, among which at least execution results of data processing of the given communications apparatus is communicated by multi-hop communication whereby, the execution results are transmitted to a second communications apparatus that performs a process based on the execution results.Type: GrantFiled: February 26, 2015Date of Patent: July 25, 2017Assignee: FUJITSU LIMITEDInventors: Hiromasa Yamauchi, Koichiro Yamashita, Takahisa Suzuki, Koji Kurihara, Toshiya Otomo, Yuta Teranishi
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Patent number: 9713119Abstract: A position estimation apparatus acquires, for base devices, the number of hops from a target sensor node to a base device. The position estimation apparatus calculates, for each base device, a distribution of estimated distances corresponding to the total hops, based on the number of hops and a distribution of estimated distances stored in a storage device. The position estimation apparatus calculates, for each base device, a distribution of estimated positions within a given region, based on the distribution of estimated distances, information concerning a range of the given region, and information concerning a position of the base device. The position estimation apparatus calculates an index that indicates a probability of a position of the target sensor node within the given region, based on the sum of distributions of estimated positions concerning the base stations.Type: GrantFiled: January 16, 2015Date of Patent: July 18, 2017Assignee: FUJITSU LIMITEDInventors: Yuta Teranishi, Koichiro Yamashita, Takahisa Suzuki, Hiromasa Yamauchi, Koji Kurihara, Toshiya Otomo
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Patent number: 9690619Abstract: A thread processing method is executed by a specific apparatus included among a plurality of apparatuses, and includes assigning one thread among a plurality of threads to the apparatuses, respectively; acquiring first time information that indicates a time at which the specific apparatus receives an execution result of a corresponding thread from each of the apparatuses; and setting a priority level of an access right to access shared memory that is shared by the apparatuses and the specific apparatus, the setting being based on the first time information and second time information that indicates a time at which reception of execution results of the threads from the apparatuses ends.Type: GrantFiled: October 18, 2013Date of Patent: June 27, 2017Assignee: FUJITSU LIMITEDInventors: Hiromasa Yamauchi, Koichiro Yamashita, Takahisa Suzuki, Koji Kurihara, Toshiya Otomo, Naoki Odate
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Patent number: 9690633Abstract: A synchronization method of multiple threads is executed by a computer. The synchronization method includes determining a type of a synchronization process of a first thread performing the synchronization process for synchronization with a second thread; starting time measurement when the type of the synchronization process of the first thread is a first type; performing the synchronization process of the first thread and a synchronization process of the second thread based on a synchronization process history of the second thread when the measured time exceeds a permitted response period of the first thread; and updating the permitted response period and performing the synchronization processes of the first thread and the second thread based on the synchronization process history of the second thread, when another processing request is received.Type: GrantFiled: June 13, 2013Date of Patent: June 27, 2017Assignee: FUJITSU LIMITEDInventors: Koji Kurihara, Koichiro Yamashita, Takahisa Suzuki, Hiromasa Yamauchi, Toshiya Otomo
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Patent number: 9684536Abstract: A scheduling method includes determining whether priority of an application to be activated is of a given priority, the determining being performed by a first data processing apparatus that is included in a first group having at least one data processing apparatus; transferring to a second data processing apparatus that is included in any one among a second group and the first group, a predetermined function of the first data processing apparatus so as to execute the application by the first data processing apparatus, the transferring being performed when the priority of the application is of the given priority, and the first and the second groups being among a plurality of groups that each includes at least one data processing apparatus; and placing the application in an execution queue of the first data processing apparatus, when the priority of the application is not the given priority.Type: GrantFiled: February 7, 2014Date of Patent: June 20, 2017Assignee: FUJITSU LIMITEDInventors: Hiromasa Yamauchi, Koichiro Yamashita, Takahisa Suzuki, Koji Kurihara, Toshiya Otomo
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Patent number: 9672076Abstract: A system includes a CPU; an accelerator; a comparing unit that compares a first value that is based on a first processing time period elapsing until the CPU completes a first process and a second processing time period elapsing until the accelerator completes the first process, and a second value that is based on a state of use of a battery driving the CPU and the accelerator; and a selecting unit that selects any one among the CPU and the accelerator, based on a result of comparison by the comparing unit.Type: GrantFiled: September 16, 2013Date of Patent: June 6, 2017Assignee: FUJITSU LIMITEDInventors: Takahisa Suzuki, Koichiro Yamashita, Hiromasa Yamauchi, Koji Kurihara, Fumihiko Hayakawa, Naoki Odate, Tetsuo Hiraki, Toshiya Otomo