Patents by Inventor Fumiharu Nakahara
Fumiharu Nakahara 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: 10228934Abstract: The present invention provides a vehicle-mounted control device, a program writing device, a program generating device, and a program, which are capable of quickly and easily carrying out reprogramming. An ECU 300 is provided with: a microcomputer 301, an SRAM 302, a flash memory 303, and a communication device 305. The flash memory 303 is configured from a plurality of blocks and stores older versions of the program. The communication device 305 receives (S250) a frame including block data, the type of the block data, and an address of a block in which the block data is to be written. The microcomputer 301 restores (S260) a new program from the block data in the SRAM 302 according to the type of the block data (S255, S260) and writes (S265, S270) one piece of the restored new program in a block corresponding to the address.Type: GrantFiled: January 8, 2016Date of Patent: March 12, 2019Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Kenichi Kurosawa, Hidetoshi Teraoka, Fumiharu Nakahara
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Publication number: 20180246711Abstract: Provided is an in-vehicle control device which makes it possible to achieve restoration processing of differential reprogramming even in an in-vehicle control device using a microcomputer with a built-in flash memory using a small amount of RAM and composed of large blocks, and is capable of restoring a new program in a short time by decreasing the size of differential data even for a new program to which major changes have been made. Provided is an in-vehicle control device capable of updating a program on the basis of update content provided from an update tool, the in-vehicle control device being provided with a first memory provided with a plurality of blocks for storing programs, and a second memory.Type: ApplicationFiled: September 21, 2016Publication date: August 30, 2018Applicant: Hitachi Automotive Systems, Ltd.Inventors: Kenichi KUROSAWA, Fumiharu NAKAHARA, Hidetoshi TERAOKA
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Patent number: 10061576Abstract: A vehicle-mounted program writing device includes a plurality of vehicle-mounted control devices and a relay device. If a write start command button is turned on when a memory storage completion indicator is in an on state, the relay device starts the writing of the updated programs and the updated data to the vehicle-mounted control devices. If the memory storage completion indicator is in off state, the relay device does not execute the writing of the updated programs and the updated data even when the write start command button is turned on.Type: GrantFiled: June 19, 2015Date of Patent: August 28, 2018Assignee: Hitachi Automotive Systems, Ltd.Inventors: Kenichi Kurosawa, Fumiharu Nakahara
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Publication number: 20180191866Abstract: Provided are an on-vehicle control device and an on-vehicle control device information update system that are capable of identifying a subject vehicle by a simple means, while suppressing power consumption, when on-vehicle device information is automatically updated. This on-vehicle control device receives a vehicle response request message from a data server in a power-saving mode in which only a vehicle external communication unit can operate; checks vehicle identification information and on-vehicle control device information that are subject to change and are stored in the message, and vehicle identification information and on-vehicle control device information stored in advance in the vehicle external communication unit and responds with the results to the data server.Type: ApplicationFiled: August 5, 2016Publication date: July 5, 2018Inventors: Fumiharu NAKAHARA, Kenichi KUROSAWA, Hidetoshi TERAOKA
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Publication number: 20180018160Abstract: Provided is a software updating apparatus that can flexibly respond to various situations, including update capacity and use cases of each ECU, in a case of updating control information of a plurality of ECUs. Update control information necessary for update processing, including update data to be newly applied to an ECU, is received from a server and control of the update processing is performed based on the received update control information.Type: ApplicationFiled: February 10, 2016Publication date: January 18, 2018Inventors: Hidetoshi TERAOKA, Kenichi KUROSAWA, Fumiharu NAKAHARA
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Publication number: 20180018164Abstract: The present invention provides a vehicle-mounted control device, a program writing device, a program generating device, and a program, which are capable of quickly and easily carrying out reprogramming. An ECU 300 is provided with: a microcomputer 301, an SRAM 302, a flash memory 303, and a communication device 305. The flash memory 303 is configured from a plurality of blocks and stores older versions of the program. The communication device 305 receives (S250) a frame including block data, the type of the block data, and an address of a block in which the block data is to be written. The microcomputer 301 restores (S260) a new program from the block data in the SRAM 302 according to the type of the block data (S255, S260) and writes (S265, S270) one piece of the restored new program in a block corresponding to the address.Type: ApplicationFiled: January 8, 2016Publication date: January 18, 2018Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Kenichi KUROSAWA, Hidetoshi TERAOKA, Fumiharu NAKAHARA
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Publication number: 20170228236Abstract: Provided is a vehicle control device with which it is possible to reduce the time required to rewrite a control program. In the vehicle control device according to the present invention, after an updated version of the control program has been stored in a second storage unit, a first storage unit is initialized in advance before the instruction to update the control program has been executed.Type: ApplicationFiled: August 17, 2015Publication date: August 10, 2017Applicant: Hitachi Automotive Systems, Ltd.Inventors: Fumiharu NAKAHARA, Kenichi KUROSAWA
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Publication number: 20170090907Abstract: Provided is a vehicle-mounted program writing device that writes an updated program and updated data to a vehicle-mounted control device without a driver feeling inconvenienced. A relay device has: a means for receiving updated program data for a plurality of vehicle-mounted control devices and transmitted from an external center when an ignition is in an off state before a predetermined first time slot; and a means for waking up the vehicle-mounted control devices when a write start command transmitted within the first time slot is received from the external center, and cause a transition to a repro mode.Type: ApplicationFiled: June 19, 2015Publication date: March 30, 2017Inventors: Kenichi KUROSAWA, Fumiharu NAKAHARA
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Publication number: 20170075678Abstract: Provided is a program writing device that reliably performs an updating process of data by means of a control program or the like in a safe manner and without inconveniencing the owner of a vehicle or a driver using the vehicle.Type: ApplicationFiled: June 8, 2015Publication date: March 16, 2017Applicant: Hitachi Automotive Systems, Ltd.Inventors: Kenichi KUROSAWA, Fumiharu NAKAHARA
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Patent number: 8477722Abstract: There is disclosed a handoff control method for registering a CDMA mobile station in such a way that battery power wastage is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108 and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108 times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.Type: GrantFiled: September 25, 2009Date of Patent: July 2, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Shigeyuki Sudo, Yukinori Asada, Yoshinori Chida, Fumiharu Nakahara
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Publication number: 20100014484Abstract: There is disclosed a handoff control method for registering a CDMA mobile station in such a way that battery power wastage is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108 and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108 times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.Type: ApplicationFiled: September 25, 2009Publication date: January 21, 2010Applicant: HITACHI, LTD.Inventors: Shigeyuki Sudo, Yukinori Asada, Yoshinori Chida, Fumiharu Nakahara
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Patent number: 7606198Abstract: There is disclosed a handoff control method for registering a CDMA mobile station in such a way that the waste of battery power is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108 and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108 times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.Type: GrantFiled: December 21, 2005Date of Patent: October 20, 2009Assignee: Hitachi, Ltd.Inventors: Shigeyuki Sudo, Yukinori Asada, Yoshinori Chida, Fumiharu Nakahara
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Patent number: 7397777Abstract: There is disclosed a handoff control method for registering a CDMA mobile station in such a way that the waste of a power is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108 and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108 times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.Type: GrantFiled: November 1, 2000Date of Patent: July 8, 2008Assignee: Hitachi, Ltd.Inventors: Shigeyuki Sudo, Yukinori Asada, Yoshinori Chida, Fumiharu Nakahara
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Publication number: 20060114859Abstract: There is disclosed a handoff control method for registering a CDMA mobile station in such a way that battery power wastage is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108 and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108 times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.Type: ApplicationFiled: December 21, 2005Publication date: June 1, 2006Inventors: Shigeyuki Sudo, Yukinori Asada, Yoshinori Chida, Fumiharu Nakahara
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Patent number: 6978209Abstract: A navigation system for route guidance is provided. The navigation system comprises a navigation server storing map information and the mobile terminal displaying map information. The mobile terminal has access to the navigation server through a communication network and is controlled to turn on and off the display of map information.Type: GrantFiled: March 7, 2003Date of Patent: December 20, 2005Assignee: Hitachi, Ltd.Inventors: Fumiharu Nakahara, Yoshiaki Umehara, Naoki Tsuji, Osamu Hasegawa, Junichi Yoshida
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Publication number: 20040198387Abstract: A position detection system and a portable terminal are disclosed. The portable terminal carries out communication with a server in the first position detection session and thereby acquires the GPS assist information and the base station position information from the server. Using the GPS assist information thus acquired, the portable terminal transmits the GPS signal received from a GPS satellite to the server, and receives the position information of the portable terminal calculated by the server. In the second and subsequent sessions of position detection, the portable terminal neither establishes communication with the server nor receives the GPS signal, but makes calculations for position detection on its own using the result of measuring the radio wave propagation time from nearby base stations, the position information of the portable terminal obtained in the preceding session and the base station position information.Type: ApplicationFiled: January 9, 2003Publication date: October 7, 2004Inventors: Naoki Tsuji, Yoshiaki Umehara, Fumiharu Nakahara, Yoshitaka Imakado
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Publication number: 20040048620Abstract: In a navigation system using a mobile terminal, in view of small capacity of battery for mobile terminals, the power saving of the system is achieved.Type: ApplicationFiled: March 7, 2003Publication date: March 11, 2004Applicant: Hitachi, Ltd.Inventors: Fumiharu Nakahara, Yoshiaki Umehara, Naoki Tsuji, Osamu Hasegawa, Junichi Yoshida
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Publication number: 20030083816Abstract: A portable terminal device including GPS correctly detects a position thereof by preventing an error due to a state of an environment thereof. In a portable telephone including a GPS receiver capable of receiving a GPS signal according to GPS assist information sent from a reference GPS receiver server continuously receiving GPS signals from GPS satellites, a result of acquisition of each GPS signal received by the telephone using the GPS assist information and the like is evaluated to produce GPS information to be reported to the server.Type: ApplicationFiled: October 30, 2002Publication date: May 1, 2003Inventors: Yoshitaka Imakado, Yoshiaki Umehara, Fumiharu Nakahara, Naoki Tsuji