Patents by Inventor Tomohito Ebina
Tomohito Ebina 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: 10597040Abstract: The present invention provides a vehicle control apparatus in which a function stop caused by an access conflict when a high load is applied can be suppressed. The vehicle control apparatus according to the present invention determines the occurrence tendency of access conflicts by using a function expressed by the number of times of performing exclusive control on a shared storage area and by the number of the resultant access conflicts.Type: GrantFiled: June 14, 2017Date of Patent: March 24, 2020Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tsunamichi Tsukidate, Tomohito Ebina, Tasuku Ishigooka, Fumio Narisawa
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Publication number: 20190354424Abstract: This invention detects deviations from design without hindering the real-time nature of interrupt processing, and assists in analyzing the impact of faults caused by unintentional interrupt processing, with the goal of curbing erroneous detection. In order to resolve this problem, this vehicle control device comprises; a deviation determination unit 129 which determines if execution timing of an execution body has deviated from design settings, and transitions to a monitoring state; and a run-time verification unit 130 which verifies the impact of deviation at timing which differs from that of the interrupt processing.Type: ApplicationFiled: March 15, 2018Publication date: November 21, 2019Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tasuku ISHIGOOKA, Tomohito EBINA, Kazuyoshi SERIZAWA
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Publication number: 20190286447Abstract: Provided is a technology for reducing a time when the information processing device is not controllable by a program update accompanying with a function change. An information processing device includes a storage unit and a processing unit, wherein the storage unit stores a program which contains a function and a jump table which defines calling of the function by the program, and wherein the processing unit determines the function to be called with reference to the jump table when the program is executed and, when the program is updated accompanying with a change of the function, writes a new function which is a function after the change and update the jump table to call the new function.Type: ApplicationFiled: January 24, 2018Publication date: September 19, 2019Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventor: Tomohito EBINA
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Patent number: 10394675Abstract: The present invention provides a vehicle control device with which, even when an abnormality is detected in a core in a multi-core processor, it is possible to reduce the time needed until the core in which the abnormality is detected restarts and re-executes application software. The present invention is characterized by being provided with: a diagnostic means for carrying out a diagnostic process when starting a processor core, the diagnostic process including hardware diagnosis performed by hardware and software diagnosis performed using software after the hardware diagnosis; and a diagnostic process information change processing means for changing the method for executing the diagnostic process when all of the processor cores are started and when one of the processor cores is restarted.Type: GrantFiled: January 12, 2016Date of Patent: August 27, 2019Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Takeshi Fukuda, Fumio Narisawa, Tomohito Ebina, Hiroaki Komatsu
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Publication number: 20190232891Abstract: The present invention provides a vehicle control device capable of realizing access authority definitions by the number equal to or greater than the number of access control registers provided in a memory protection device. In the vehicle control device according to the present invention, the whole or a part of a storage device that stores the access authority definitions used by the memory protection device to control the access authorities, is allocated fixedly to a memory area in advance and the rest is allocated dynamically.Type: ApplicationFiled: October 24, 2017Publication date: August 1, 2019Inventors: Tasuku ISHIGOOKA, Tomohito EBINA, Kazuyoshi SERIZAWA
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Publication number: 20190143999Abstract: The present invention provides a vehicle control apparatus in which a function stop caused by an access conflict when a high load is applied can be suppressed. The vehicle control apparatus according to the present invention determines the occurrence tendency of access conflicts by using a function expressed by the number of times of performing exclusive control on a shared storage area and by the number of the resultant access conflicts.Type: ApplicationFiled: June 14, 2017Publication date: May 16, 2019Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tsunamichi TSUKIDATE, Tomohito EBINA, Tasuku ISHIGOOKA, Fumio NARISAWA
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Publication number: 20180253390Abstract: In the present invention, computational efficiency degradation is suppressed when diagnosing a shared storage area in a vehicle control device in which a plurality of computing units are employed. This vehicle control device suppresses computational efficiency degradation by changing an access destination in a storage device while diagnosing a shared storage area that the storage device has.Type: ApplicationFiled: October 26, 2016Publication date: September 6, 2018Inventors: Tsunamichi TSUKIDATE, Yusuke ABE, Takeshi FUKUDA, Tomohito EBINA, Fumio NARISAWA
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Publication number: 20180181124Abstract: Provided is a vehicle control device capable of reducing a control gap that occurs when a system is restored to a normal state after a malfunction is corrected, thereby achieving smooth driving performance for a user. A vehicle control device according to the present invention has a first travel control mode and a second travel control mode. When in a transitional state from the second travel control mode to the first travel control mode, the vehicle control device calculates and checks a first control parameter used in the first travel control mode, calculates a second control parameter used in the second travel control mode, and uses the second control parameter for traveling control.Type: ApplicationFiled: July 20, 2016Publication date: June 28, 2018Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Takeshi FUKUDA, Fumio NARISAWA, Tomohito EBINA, Kosei GOTO
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Publication number: 20170357560Abstract: The present invention provides a vehicle control device with which, even when an abnormality is detected in a core in a multi-core processor, it is possible to reduce the time needed until the core in which the abnormality is detected restarts and re-executes application software. The present invention is characterized by being provided with: a diagnostic means for carrying out a diagnostic process when starting a processor core, the diagnostic process including hardware diagnosis performed by hardware and software diagnosis performed using software after the hardware diagnosis; and a diagnostic process information change processing means for changing the method for executing the diagnostic process when all of the processor cores are started and when one of the processor cores is restarted.Type: ApplicationFiled: January 12, 2016Publication date: December 14, 2017Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Takeshi FUKUDA, Fumio NARISAWA, Tomohito EBINA, Hiroaki KOMATSU
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Publication number: 20170039091Abstract: Provided is a vehicle control apparatus with which it is possible to allocate programs to multiple cores so as to satisfy a deadline even when software programs having two or more control cycles are intermixed. The vehicle control apparatus pertaining to the present invention allocates tasks to processor cores in consideration of the execution order of the tasks, the execution cycles of the tasks, and the cost of communication between the processor cores.Type: ApplicationFiled: April 22, 2015Publication date: February 9, 2017Applicant: Hitachi Automotive Systems, Ltd.Inventors: Takeshi FUKUDA, Fumio NARISAWA, Tomohito EBINA, Hiroaki KOMATSU
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Patent number: 8452742Abstract: It is possible to surely commit a revision made on a software component in a software component database and a software product group and to create a new software product from the same database. Provided is a software configuration management system which includes a software component database and a software product management unit and accepts data transmission/reception from a software component database management client and a software product operation client. The software configuration management system further includes: a component-product correspondence table, component-file correspondence information, a synchronization unit for mutually committing a modification of the software component database and a modification of a software product; update information; and a correspondence table update unit.Type: GrantFiled: May 28, 2009Date of Patent: May 28, 2013Assignee: Hitachi Automotive Systems, Ltd.Inventors: Koji Hashimoto, Fumio Narisawa, Kentaro Yoshimura, Tomohito Ebina, Junji Miyake
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Publication number: 20130039150Abstract: It is an object to maintain a processing speed while increasing accuracy of a sonar image. Disclosed is a phased-array synthetic-aperture sonar system, including: a plurality of phased array processors (9) which perform, in parallel, phased array processing for a plurality of incoming data; a phased array distribution device (8) which distributes each simultaneously incoming data to the plurality of phased array processors (9), the incoming data being input from a plurality of receivers disposed in a platform; a synthetic aperture processor (11) which performs synthetic aperture processing by using a plurality of phased array processing results; and a data-shaping buffer device (10) which transfers the phased array processing results output from the plurality of phased array processors (9) to the synthetic aperture processor (11) in the order of receipt of the incoming data.Type: ApplicationFiled: March 18, 2011Publication date: February 14, 2013Applicants: Japan Agency for Marine-Earth Science and Technology, Hitachi Information & Control Solutions, Ltd.Inventors: Jin Goto, Tomohito Ebina, Takao Sawa
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Publication number: 20110055153Abstract: It is possible to surely commit a revision made on a software component in a software component database and a software product group and to create a new software product from the same database. Provided is a software configuration management system which includes a software component database and a software product management unit and accepts data transmission/reception from a software component database management client and a software product operation client. The software configuration management system further includes: a component-product correspondence table, component-file correspondence information, a synchronization unit for mutually committing a modification of the software component database and a modification of a software product; update information; and a correspondence table update unit.Type: ApplicationFiled: May 28, 2009Publication date: March 3, 2011Inventors: Koji Hashimoto, Fumio Narisawa, Kentaro Yoshimura, Tomohito Ebina, Junji Miyake
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Patent number: 5859977Abstract: A computer system is so configured as to be divided into a control system which should have high reliability and high responsiveness and an information system which does not access the control system. They are connected via a transmission path (transmission path of control system and transmission path of information system). Centralized management of development and maintenance is performed from a software maintenance system. In development and maintenance of software, management according to the feature of each software such as processing contents of each software, demanded reliability, and version up frequency is performed from a maintenance system for exclusive use by using a transmission path of information system. Thereby, development and maintenance having high reliability and expandability is realized.Type: GrantFiled: May 30, 1995Date of Patent: January 12, 1999Assignees: Hitachi, Ltd., Hitachi Process Engineering, Inc.Inventors: Shuji Nishiyama, Hiroaki Nakanishi, Hideki Sato, Hiroshi Kobayashi, Shigeru Endo, Toshimasa Saika, Teruyasu Nakahashi, Hiroyuki Hori, Tomohito Ebina, Keiichi Sannomiya, Shimako Tanno