Patents by Inventor Masaaki Ichihara
Masaaki Ichihara 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: 10104094Abstract: An Electric Control Unit (ECU) device connected to an on-vehicle network and a network outside a vehicle. The ECU generating an ECU receiver code using an encryption key upon receipt of a message data frame, the encryption key being shared among ECUs communicable with the ECU, successfully authenticating the message data frame received the ECU, when the ECU receiver code matches a receiver code extracted from the message data frame received by the ECU, and when the message data frame received by the ECU is successfully authenticated, generate an ECU transmitter code using the encryption key, and transmit a message data frame that includes the generated ECU transmitter code to the on-vehicle network.Type: GrantFiled: December 4, 2017Date of Patent: October 16, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masaaki Ichihara
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Publication number: 20180091525Abstract: An Electric Control Unit (ECU) device connected to an on-vehicle network and a network outside a vehicle. The ECU generating an ECU receiver code using an encryption key upon receipt of a message data frame, the encryption key being shared among ECUs communicable with the ECU, successfully authenticating the message data frame received the ECU, when the ECU receiver code matches a receiver code extracted from the message data frame received by the ECU, and when the message data frame received by the ECU is successfully authenticated, generate an ECU transmitter code using the encryption key, and transmit a message data frame that includes the generated ECU transmitter code to the on-vehicle network.Type: ApplicationFiled: December 4, 2017Publication date: March 29, 2018Inventor: Masaaki Ichihara
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Patent number: 9866570Abstract: An on-vehicle communication system, performing message authentication using transmitter and receiver codes that are message authentication codes respectively generated by a communication data transmitter and receiver, includes a first ECU, connected to an on-vehicle network, configured to have, among mutually different first and second encryption keys, only the first one and verify, by using the receiver code generated using the first one, the transmitter code assigned to the communication data received; a second ECU, connected to the on-vehicle network, configured to have at least the first one and transmit communication data to which the transmitter code generated using the first one is assigned; and a third ECU connected to the on-vehicle network and a network outside a vehicle, configured to have only the second one among the first and second ones and generate the transmitter or receiver codes using the second one when making communication over the on-vehicle network.Type: GrantFiled: October 21, 2015Date of Patent: January 9, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masaaki Ichihara
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Publication number: 20160173505Abstract: An on-vehicle communication system, performing message authentication using transmitter and receiver codes that are message authentication codes respectively generated by a communication data transmitter and receiver, includes a first ECU, connected to an on-vehicle network, configured to have, among mutually different first and second encryption keys, only the first one and verify, by using the receiver code generated using the first one, the transmitter code assigned to the communication data received; a second ECU, connected to the on-vehicle network, configured to have at least the first one and transmit communication data to which the transmitter code generated using the first one is assigned; and a third ECU connected to the on-vehicle network and a network outside a vehicle, configured to have only the second one among the first and second ones and generate the transmitter or receiver codes using the second one when making communication over the on-vehicle network.Type: ApplicationFiled: October 21, 2015Publication date: June 16, 2016Inventor: Masaaki ICHIHARA
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Patent number: 9214085Abstract: A vehicle gateway device is provided in a vehicle and can update information acquired by communication with outside the vehicle. The vehicle gateway device determines whether the update information acquired by communication with outside the vehicle is information for a vehicle system related to vehicle control, records and manages the update information when it is determined that the update information is information for the vehicle system, and transmits the update information to an information processing unit when it is determined that the update information is not information for the vehicle system. In this way, a recording medium with low memory capacity can be used to update information and information update management can be simplified.Type: GrantFiled: November 6, 2009Date of Patent: December 15, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masaaki Ichihara
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Patent number: 9043705Abstract: A service distribution device is provided that, when acquiring services to be used in an information terminal mounted in a vehicle or used in its passenger compartment, recognizes service availability beforehand, thereby improving usability of the services. A service distribution device includes an information correlation unit for correlating information that denotes service utilization conditions in relation to travel condition of the vehicle with the services. The service distribution device distributes to an information terminal the information that denotes the service utilization conditions correlated by the information correlation unit along with contents of the relevant service so that the information and the contents can be visibly displayed on a display unit in the information terminal.Type: GrantFiled: January 11, 2011Date of Patent: May 26, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masaaki Ichihara
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Patent number: 8817706Abstract: The invention relates to a gateway device for a vehicle that is provided in a vehicle, is connected to an out-vehicle network, an in-vehicle information system network, and an in-vehicle control system network, and controls data communication between the three networks. The gateway device for a vehicle has a function of changing the priority of the data communication between the in-vehicle information system network and the in-vehicle control system network with respect to the data communication between the out-vehicle network and the in-vehicle information system network, according to traveling conditions of the vehicle.Type: GrantFiled: November 4, 2009Date of Patent: August 26, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Masaaki Ichihara
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Publication number: 20140073254Abstract: An information transfer ECU provided to a vehicle acquires and accumulates vehicle information output from a plurality of vehicle ECUs connected to a CAN communication line. Then, the information transfer ECU transfers the accumulated vehicle information to a portable information terminal to/from which short-range radio communications have been established by a short-range communication control unit. The portable information terminal transmits the transferred vehicle information to a vehicle information center through an external communication line network in order. When acquiring information for identifying the vehicle information whose transmission has been completed from the vehicle information center, the portable information terminal supplies the information to the information transfer ECU. The information transfer ECU erases the vehicle information whose transmission has been completed based on the acquired information.Type: ApplicationFiled: May 25, 2011Publication date: March 13, 2014Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masaaki Ichihara, Jiro Sato
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Patent number: 8483901Abstract: A power charging station administration device administrates available time slot information and installation site information set by an administrator of an in-vehicle battery charger, that is, the available time slot information representing time slots at which the in-vehicle battery charger is available and the installation site information representing the installation site of the in-vehicle battery charger using an administration. An information publication unit publishes the available time slot information and the installation site information administrated by the administration unit on a homepage. An occupant of a vehicle A other than the administrator of the in-vehicle battery charger can use the in-vehicle battery charger by verifying the published information during time slots at which the in-vehicle battery charger is available.Type: GrantFiled: March 15, 2011Date of Patent: July 9, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Masaaki Ichihara
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Publication number: 20120303257Abstract: A power charging station administration device administrates available time slot information and installation site information set by an administrator of an in-vehicle battery charger, that is, the available time slot information representing time slots at which the in-vehicle battery charger is available and the installation site information representing the installation site of the in-vehicle battery charger using an administration unit. An information publication unit publishes the available time slot information and the installation site information administrated by the administration unit on a homepage. An occupant of a vehicle A other than the administrator of the in-vehicle battery charger can use the in-vehicle battery charger by verifying the published information during time slots at which the in-vehicle battery charger is available.Type: ApplicationFiled: March 15, 2011Publication date: November 29, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masaaki Ichihara
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Patent number: 8314680Abstract: A disclosed vehicle door lock control apparatus mounted in a vehicle for locking and unlocking the closed doors includes an automatic door locking unit locking the doors when no operation of opening a vehicle door is detected within a prescribed period of time-out time after the doors are unlocked by the user; and a time-out time determining unit determining the prescribed period of time-out time based on own vehicle position information. The time-out time determining unit, when the user requests to unlock the doors within a prescribed time after the doors are locked by the automatic door locking unit, learns that the prescribed period of time-out time with respect to an own vehicle position is to be extended.Type: GrantFiled: October 2, 2007Date of Patent: November 20, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Masaaki Ichihara
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Publication number: 20120272154Abstract: A service distribution device is provided that, when acquiring services to be used in an information terminal mounted in a vehicle or used in its passenger compartment, recognizes service availability beforehand, thereby improving usability of the services. A service distribution device includes an information correlation unit for correlating information that denotes service utilization conditions in relation to travel condition of the vehicle with the services. The service distribution device distributes to an information terminal the information that denotes the service utilization conditions correlated by the information correlation unit along with contents of the relevant service so that the information and the contents can be visibly displayed on a display unit in the information terminal.Type: ApplicationFiled: January 11, 2011Publication date: October 25, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masaaki Ichihara
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Publication number: 20120204166Abstract: The invention has been made in order to solve the above-mentioned problems and an object of the invention is to provide a vehicle gateway device that updates information smoothly while preventing an increase in the memory capacity of a gateway. A vehicle gateway device according to the invention is provided in a vehicle and can update information acquired by communication with outside the vehicle. The vehicle gateway device determines whether the update information acquired by communication with outside the vehicle is information for a vehicle system related to vehicle control, records and manages the update information when it is determined that the update information is information for the vehicle system, and transmits the update information to an information processing unit when it is determined that the update information is not information for the vehicle system. In this way, a recording medium with low memory capacity can be used to update information and information update management can be simplified.Type: ApplicationFiled: November 6, 2009Publication date: August 9, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masaaki Ichihara
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Patent number: 8239103Abstract: In order to simplify a door lock operation by a user after starting an energy supply receiving operation, an ECU mounted on a vehicle stores an ID code beforehand. Furthermore, ECU locks all the doors, if a charging paddle on the power supply device side is connected with a charging plug on the vehicle side, and if an ID code received from the power supply device matches the ID code stored beforehand, and if a drive system of the vehicle is stopped, and if all the doors of the vehicle are closed.Type: GrantFiled: September 26, 2008Date of Patent: August 7, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Masaaki Ichihara
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Publication number: 20120127928Abstract: The invention relates to a gateway device for a vehicle that is provided in a vehicle, is connected to an out-vehicle network, an in-vehicle information system network, and an in-vehicle control system network, and controls data communication between the three networks. The gateway device for a vehicle has a function of changing the priority of the data communication between the in-vehicle information system network and the in-vehicle control system network with respect to the data communication between the out-vehicle network and the in-vehicle information system network, according to traveling conditions of the vehicle.Type: ApplicationFiled: November 4, 2009Publication date: May 24, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masaaki Ichihara
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Publication number: 20100211272Abstract: In order to simplify a door lock operation by a user after starting an energy supply receiving operation, an ECU mounted on a vehicle stores an ID code beforehand. Furthermore, ECU locks all the doors, if a charging paddle on the power supply device side is connected with a charging plug on the vehicle side, and if an ID code received from the power supply device matches the ID code stored beforehand, and if a drive system of the vehicle is stopped, and if all the doors of the vehicle are closed.Type: ApplicationFiled: September 26, 2008Publication date: August 19, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masaaki Ichihara
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Publication number: 20090033459Abstract: A disclosed vehicle door lock control apparatus mounted in a vehicle for locking and unlocking the closed doors includes an automatic door locking unit locking the doors when no operation of opening a vehicle door is detected within a prescribed period of time-out time after the doors are unlocked by the user; and a time-out time determining unit determining the prescribed period of time-out time based on own vehicle position information. The time-out time determining unit, when the user requests to unlock the doors within a prescribed time after the doors are locked by the automatic door locking unit, learns that the prescribed period of time-out time with respect to an own vehicle position is to be extended.Type: ApplicationFiled: October 2, 2007Publication date: February 5, 2009Inventor: Masaaki Ichihara
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Publication number: 20060155548Abstract: An in-vehicle chat system realizes chatting between passengers of more than three vehicles through a center facility having a speech recognition device. The center facility selects only one of a plurality of speech signals competing with each other in accordance with a predetermined selection criterion based on results of speech recognition performed on the speech signals and distributes the selected one of the speech signals to each of the vehicles. The speech signals are generated, within a fixed time period after a speech signal was distributed from one of the vehicles to each of the vehicles, by two or more of the other vehicles.Type: ApplicationFiled: December 28, 2005Publication date: July 13, 2006Applicant: Toyota Jidosha Kabushiki KaishaInventor: Masaaki Ichihara