Patents by Inventor Noritaka Matsumoto
Noritaka Matsumoto 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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Publication number: 20220382235Abstract: In the conventional distributed control system, since each control device updates the data area at a timing when a control packet is received, in a case where there is a difference in communication delay between the control devices or in a case where the communication delay includes jitter, it is difficult to match the contents of data in all the control devices in a case of focusing on a certain moment during system operation. Therefore, depending on the start timing of a control application, the control application operates on the basis of different data between the control devices, thus limiting control performance improvement. Accordingly, time slots on the network are allocated according to the result of a calculation unit, and a cyclic memory synchronization update unit synchronizes the timing of reflecting data in the input/output and the cyclic memory and the timing of using data of a cyclic memory.Type: ApplicationFiled: August 19, 2020Publication date: December 1, 2022Inventors: Tatsuya MARUYAMA, Yusaku OTSUKA, Hidenori OMIYA, Toshiki SHIMIZU, Iori KOBAYASHI, Kazutaka ONISHI, Noritaka MATSUMOTO
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Publication number: 20220329564Abstract: Conventional security measures are generally intended for an IT system, and it has been difficult to satisfy a real-time property and availability requested to a control system. Furthermore, since a time-division type time slot communication method is not taken into consideration, such time slot communication has problems in efficient utilization of computer resources and decrease in availability. In order to solve the above-described problems, the present invention specifies a time slot from characteristics of a communication packet received by a reception unit 133 by using a time slot characteristic storage unit 130, and selects, in accordance with the specified time slot, an inspection pattern stored in an inspection pattern storage unit 136 by using an inspection pattern selection unit 131.Type: ApplicationFiled: June 23, 2020Publication date: October 13, 2022Applicant: Hitachi, Ltd.Inventors: Tatsuya MARUYAMA, Noritaka MATSUMOTO, Hiroshi IWASAWA, Hiromichi ENDOH, Junya FUJITA
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Publication number: 20220276643Abstract: The present invention provides a control system that achieves both high reliability and versatility. A control system 100 of the present invention includes a control device 1 including an operating system 20, non-real-time software 21 executed on the operating system 20, and real-time software 22 executed on the operating system 20, an execution time analysis unit 50 that inputs and analyzes execution time information of the non-real-time software 21 and execution time information of the real-time software 22, and a real-time interface generation unit 52 that determines whether or not to generate binary data for updating processing of the control device from an analysis result of the execution time analysis unit.Type: ApplicationFiled: April 14, 2020Publication date: September 1, 2022Inventors: Teruaki SAKATA, Noritaka MATSUMOTO, Yusaku OTSUKA, Hidenori OMIYA
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Publication number: 20220121179Abstract: A control system in which a plurality of controllers and a redundant controller are connected to a common network, the plurality of controllers are divided into a highly available controller and other normal controllers, the redundant controller obtains context data of the highly available controller to hold the context data in a memory, holds programs of the plurality of controllers in a non-volatile memory, and holds the program of the highly available controller in the memory, and an arithmetic unit substitutes processing of the highly available controller by using the context data and the program of the highly available controller held in advance in the memory when a failure occurs in the highly available controller.Type: ApplicationFiled: October 15, 2021Publication date: April 21, 2022Inventors: Teruaki SAKATA, Yusaku OTSUKA, Toshiki SHIMIZU, Manabu SASAMOTO, Noritaka MATSUMOTO
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Patent number: 11228499Abstract: Example implementations described herein generate plans for the deployment of functions involving the distribution function and the allocation of network resources based on the requirements of the distributed functions on the control system and the network information constituting the control system. Example implementations involve gathering requirements of the distributed functions constituting the distributed control system, information of the network, and information of the plurality of communication devices, and generating a plan for deployment of the distributed functions to corresponding ones of the plurality of communications devices and allocation of network resources to the corresponding ones of the plurality of communication devices based on the gathered requirements and the information of the network.Type: GrantFiled: August 11, 2020Date of Patent: January 18, 2022Assignee: HITACHI, LTD.Inventors: Tatsuya Maruyama, Hidenori Omiya, Yusaku Otsuka, Iori Kobayashi, Toshiki Shimizu, Noritaka Matsumoto
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Patent number: 11201834Abstract: A communication control device of a communication system collects information of a first control device in a second control device via a relay device on a network. Allocation of network resources of the network is controlled based on a procedure of processing the collected information.Type: GrantFiled: January 21, 2020Date of Patent: December 14, 2021Assignee: HITACHI, LTD.Inventors: Tatsuya Maruyama, Noritaka Matsumoto, Hidenori Oomiya, Yuusaku Ootsuka, Iori Kobayashi, Toshiki Shimizu
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Patent number: 10761536Abstract: Vehicle systems that implement action planning for a vehicle have had difficulty in maintaining safety in the event of a failure in a recognition device since these systems generate trajectories and control the vehicle on the basis of outside-world information recognized by recognition devices. The present invention was conceived in light of the aforementioned situation and addresses the problem of maintaining safety even in the event of a failure in a recognition device of a vehicle system. This problem can be solved by an action planning device having a failure detection unit for detecting a failure in an outside-world recognition unit and a trajectory generation/determination unit for executing an action on the occurrence of a failure on the basis of outside-world information outputted by the outside-world recognition unit, wherein the trajectory generation/determination unit takes an action for coping with the failure on the basis of failure information from the failure detection unit.Type: GrantFiled: June 17, 2015Date of Patent: September 1, 2020Assignee: Hitachi Automotive Systems, Ltd.Inventors: Satoshi Otsuka, Noritaka Matsumoto, Kouhei Sakurai, Taisetsu Tanimichi
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Publication number: 20200267094Abstract: A communication control device of a communication system collects information of a first control device in a second control device via a relay device on a network. Allocation of network resources of the network is controlled based on a procedure of processing the collected information.Type: ApplicationFiled: January 21, 2020Publication date: August 20, 2020Inventors: Tatsuya MARUYAMA, Noritaka MATSUMOTO, Hidenori OOMIYA, Yuusaku OOTSUKA, Iori KOBAYASHI, Toshiki SHIMIZU
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Patent number: 10725474Abstract: Vehicle systems that implement action planning for a vehicle have had difficulty in maintaining safety in the event of a failure in a recognition device since these systems generate trajectories and control the vehicle on the basis of outside-world information recognized by recognition devices. The present invention was conceived in light of the aforementioned situation and addresses the problem of maintaining safety even in the event of a failure in a recognition device of a vehicle system. This problem can be solved by an action planning device having a failure detection unit for detecting a failure in an outside-world recognition unit and a trajectory generation/determination unit for executing an action on the occurrence of a failure on the basis of outside-world information outputted by the outside-world recognition unit, wherein the trajectory generation/determination unit takes an action for coping with the failure on the basis of failure information from the failure detection unit.Type: GrantFiled: June 19, 2019Date of Patent: July 28, 2020Assignee: Hitachi Automotive Systems, Ltd.Inventors: Satoshi Otsuka, Noritaka Matsumoto, Kouhei Sakurai, Taisetsu Tanimichi
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Publication number: 20190369624Abstract: Vehicle systems that implement action planning for a vehicle have had difficulty in maintaining safety in the event of a failure in a recognition device since these systems generate trajectories and control the vehicle on the basis of outside-world information recognized by recognition devices. The present invention was conceived in light of the aforementioned situation and addresses the problem of maintaining safety even in the event of a failure in a recognition device of a vehicle system. This problem can be solved by an action planning device having a failure detection unit for detecting a failure in an outside-world recognition unit and a trajectory generation/determination unit for executing an action on the occurrence of a failure on the basis of outside-world information outputted by the outside-world recognition unit, wherein the trajectory generation/determination unit takes an action for coping with the failure on the basis of failure information from the failure detection unit.Type: ApplicationFiled: June 19, 2019Publication date: December 5, 2019Inventors: Satoshi OTSUKA, Noritaka MATSUMOTO, Kouhei SAKURAI, Taisetsu TANIMICHI
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Publication number: 20170153644Abstract: Vehicle systems that implement action planning for a vehicle have had difficulty in maintaining safety in the event of a failure in a recognition device since these systems generate trajectories and control the vehicle on the basis of outside-world information recognized by recognition devices. The present invention was conceived in light of the aforementioned situation and addresses the problem of maintaining safety even in the event of a failure in a recognition device of a vehicle system. This problem can be solved by an action planning device having a failure detection unit for detecting a failure in an outside-world recognition unit and a trajectory generation/determination unit for executing an action on the occurrence of a failure on the basis of outside-world information outputted by the outside-world recognition unit, wherein the trajectory generation/determination unit takes an action for coping with the failure on the basis of failure information from the failure detection unit.Type: ApplicationFiled: June 17, 2015Publication date: June 1, 2017Inventors: Satoshi OTSUKA, Noritaka MATSUMOTO, Kouhei SAKURAI, Taisetsu TANIMICHI
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Patent number: 8971318Abstract: A multistage relay communication system 100 includes a trunk network 1 and branch networks 2 (2a, 2b), each of which includes one or more communication apparatuses 4. The communication apparatus 4 can switch between a trunk mode to operate in the trunk network 1 and a branch mode to operate in the branch network 2. In the trunk network 1, the communication apparatus 4 carries out fixing of a communication path and redundancy of data based on a path table in order to achieve real-timeness and a data arrival rate. Meanwhile, in the branch network 2, when a communication failure occurs, the communication apparatus 4 autonomously searches for a communication path and constructs a path table, in order to at least secure a data arrival rate even if real-timeness is impaired within an allowable range.Type: GrantFiled: June 11, 2010Date of Patent: March 3, 2015Assignee: Hitachi, Ltd.Inventors: Tsutomu Yamada, Noritaka Matsumoto, Kazuya Shimoyama, Yoshihito Sato, May Takada, Masayuki Miyazaki
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Patent number: 8693481Abstract: A communication device reduces a processing time required at the time of mutually converting different wireless or wired communication protocol and improves a real-time property. The communication device includes two or more communication units which communicate with two or more external devices and a communication controller which processes communication data. The communication controller has table information that associates a communication path, a type of the communication unit, and conversion-info, and an input and output unit that inputs and outputs the table information. According to the added conversion-info, a conversion unit sequentially performs various conversion processes (protocol conversion, routing, communication quality evaluation, fragmentation/integration of communication interface, fragment/defragment process, frame multiplication/integration, and frequency setting).Type: GrantFiled: August 15, 2011Date of Patent: April 8, 2014Assignee: Hitachi, Ltd.Inventors: Noritaka Matsumoto, Tsutomu Yamada, Kazuya Shimoyama, Yoshihito Sato
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Patent number: 8671300Abstract: A processing unit is connected to another processing unit through a system bus composed of serial signal communication line and synchronization signal communication line to be able to communicate therewith. When an operation unit detects abnormal state in the processing unit, the operation unit supplies notification of detection of the abnormal state to synchronization unit. The synchronization unit transmits the received detection notification of abnormal state to the other processing unit through the synchronization signal communication line. Conversion unit receives parallel communication data from the operation unit through important signal line instead of general signal line and converts the received parallel signal into serial signal to be transmitted to the other processing unit through the serial signal communication line, thereby soundness among processing units connected to the system bus is ensured when the system bus is configured to attain serial communication.Type: GrantFiled: November 3, 2010Date of Patent: March 11, 2014Assignee: Hitachi, Ltd.Inventors: Noritaka Matsumoto, Tsutomu Yamada, Eiji Kobayashi, Akihiro Ohashi, Shin Kokura
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Patent number: 8564440Abstract: When an RFID is attached to an object to assist testing operations, the following problems are encountered; (1) the RFID of write type tends to cause a failure and is troublesome due to the necessity of rewrite each time the situation is changed, (2) the incorporation of the reader function in a terminal block increases the cost, and (3) the known techniques are targeted for only the connecting operation and are not adapted for a sequence test that takes the most expense in time and effort. The operations are aided by using an RFID reader and a terminal having the function for accessing a database of circuit information, RFID information, and test procedure information.Type: GrantFiled: March 13, 2012Date of Patent: October 22, 2013Assignee: Hitachi, Ltd.Inventors: Toshimi Yokota, Kenji Araki, Kenji Utaka, Noritaka Matsumoto, Masatoshi Takada, Ryosuke Shigemi, Chikara Ota
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Publication number: 20130121238Abstract: A multistage relay communication system 100 includes a trunk network 1 and branch networks 2 (2a, 2b), each of which includes one or more communication apparatuses 4. The communication apparatus 4 can switch between a trunk mode to operate in the trunk network 1 and a branch mode to operate in the branch network 2. In the trunk network 1, the communication apparatus 4 carries out fixing of a communication path and redundancy of data based on a path table in order to achieve real-timeness and a data arrival rate. Meanwhile, in the branch network 2, when a communication failure occurs, the communication apparatus 4 autonomously searches for a communication path and constructs a path table, in order to at least secure a data arrival rate even if real-timeness is impaired within an allowable range.Type: ApplicationFiled: June 11, 2010Publication date: May 16, 2013Applicant: HITACHI, LTD.Inventors: Tsutomu Yamada, Noritaka Matsumoto, Kazuya Shimoyama, Yoshihito Sato, May Takada, Masayuki Miyazaki
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Patent number: 8302081Abstract: The invention contemplates to improve versatility or flexibility of a system for managing a controller. In a data format converter, a computer constitutes reception unit for acquiring input information containing a program, etc, of a first data format and outputted from a programmer unit, direction extract unit for extracting a convert direction of a data format contained in the input information so acquired, data conversion rule acquisition unit for acquiring a conversion rule of a data format corresponding to the convert direction so extracted and convert execution means for converting the program, etc, of the first data format to a second data format. The program, etc, of the second data format converted is outputted to the controller. The program, etc, can be created in this way in an arbitrary data format different from the data format of the controller.Type: GrantFiled: June 10, 2009Date of Patent: October 30, 2012Assignee: Hitachi, Ltd.Inventors: Tsutomu Yamada, Masahiko Saito, Shoji Suzuki, Hiromichi Endoh, Noritaka Matsumoto, Hirokazu Kasashima, Manabu Yamauchi
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Publication number: 20120169479Abstract: When an RFID is attached to an object to assist testing operations, the following problems are encountered; (1) the RFID of write type tends to cause a failure and is troublesome due to the necessity of rewrite each time the situation is changed, (2) the incorporation of the reader function in a terminal block increases the cost, and (3) the known techniques are targeted for only the connecting operation and are not adapted for a sequence test that takes the most expense in time and effort. The operations are aided by using an RFID reader and a terminal having the function for accessing a database of circuit information, RFID information, and test procedure information.Type: ApplicationFiled: March 13, 2012Publication date: July 5, 2012Applicant: HITACHI, LTD.Inventors: Toshimi YOKOTA, Kenji ARAKI, Kenji UTAKA, Noritaka MATSUMOTO, Masatoshi TAKADA, Ryosuke SHIGEMI, Chikara OTA
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Patent number: 8159346Abstract: When an RFID is attached to an object to assist testing operations, the following problems are encountered; (1) the RFID of write type tends to cause a failure and is troublesome due to the necessity of rewrite each time the situation is changed, (2) the incorporation of the reader function in a terminal block increases the cost, and (3) the known techniques are targeted for only the connecting operation and are not adapted for a sequence test that takes the most expense in time and effort. The operations are aided by using an RFID reader and a terminal having the function for accessing a database of circuit information, RFID information, and test procedure information.Type: GrantFiled: October 27, 2006Date of Patent: April 17, 2012Assignee: Hitachi, Ltd.Inventors: Toshimi Yokota, Kenji Araki, Kenji Utaka, Noritaka Matsumoto, Masatoshi Takada, Ryosuke Shigemi, Chikara Ota
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Publication number: 20120044954Abstract: A communication device reduces a processing time required at the time of mutually converting different wireless or wired communication protocol and improves a real-time property. The communication device includes two or more communication units which communicate with two or more external devices and a communication controller which processes communication data. The communication controller has table information that associates a communication path, a type of the communication unit, and conversion-info, and an input and output unit that inputs and outputs the table information. According to the added conversion-info, a conversion unit sequentially performs various conversion processes (protocol conversion, routing, communication quality evaluation, fragmentation/integration of communication interface, fragment/defragment process, frame multiplication/integration, and frequency setting).Type: ApplicationFiled: August 15, 2011Publication date: February 23, 2012Inventors: Noritaka MATSUMOTO, Tsutomu Yamada, Kazuya Shimoyama, Yoshihito Sato