Patents by Inventor Keisuke Mutou
Keisuke Mutou 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: 11370434Abstract: An inter-vehicle communication and driving assistance device performs wireless communication with other vehicles, and includes an inter-vehicle communication unit including a reception level detection unit, a position information reception unit, and an arithmetic processing unit. The arithmetic processing unit calculates inter-vehicle distances to other vehicles using latitude and longitude information of the other vehicles and the own vehicle, receives a position error radius, and acquires a reception level from the other vehicles. When a difference between the inter-vehicle distances is smaller than position error radius, a vehicle with a larger reception level is determined as a vehicle closer to the own vehicle. When the difference between the inter-vehicle distances is larger than the position error radius, a vehicle with a smaller inter-vehicle distance is determined as a vehicle closer to the own vehicle, and a distance to a leading vehicle is calculated.Type: GrantFiled: April 26, 2018Date of Patent: June 28, 2022Assignee: CLARION CO., LTD.Inventors: Yoshikazu Sugiyama, Tomonori Tanaka, Keisuke Mutou
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Patent number: 10880709Abstract: The invention efficiently realizes time division multiplexed channel access in a mixture of a vehicle-to-vehicle communication device using an approximate frequency band and a direct mobile communication terminal. The vehicle-to-vehicle communication device includes a mobile communication unit, a threshold storage unit that stores a threshold value as to whether or not a predetermined control channel for vehicle-to-vehicle communication is an idle channel, a level detector that outputs a predetermined detection signal when a radio wave intensity of the predetermined control channel is larger than the threshold value, and a timer unit that transmits a signal to the level detector when the time counting for a predetermined time expires. The mobile communication unit transmits the radio wave of the direct communication of the mobile communication when the level detector receives the signal and the radio wave strength of the predetermined control channel does not exceed the threshold value.Type: GrantFiled: June 7, 2019Date of Patent: December 29, 2020Assignee: Clarion Co., Ltd.Inventors: Yoshikazu Sugiyama, Tomonori Tanaka, Keisuke Mutou, Wataru Kimura, Makoto Takeshima
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Publication number: 20200369275Abstract: An inter-vehicle communication and driving assistance device performs wireless communication with other vehicles, and includes an inter-vehicle communication unit including a reception level detection unit, a position information reception unit, and an arithmetic processing unit. The arithmetic processing unit calculates inter-vehicle distances to other vehicles using latitude and longitude information of the other vehicles and the own vehicle, receives a position error radius, and acquires a reception level from the other vehicles. When a difference between the inter-vehicle distances is smaller than position error radius, a vehicle with a larger reception level is determined as a vehicle closer to the own vehicle. When the difference between the inter-vehicle distances is larger than the position error radius, a vehicle with a smaller inter-vehicle distance is determined as a vehicle closer to the own vehicle, and a distance to a leading vehicle is calculated.Type: ApplicationFiled: April 26, 2018Publication date: November 26, 2020Applicant: CLARION CO., LTD.Inventors: Yoshikazu SUGIYAMA, Tomonori TANAKA, Keisuke MUTOU
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Patent number: 10638445Abstract: An object is to enable a receiving side to estimate a position of a vehicle on a transmission side to be estimated with high accuracy.Type: GrantFiled: December 22, 2017Date of Patent: April 28, 2020Assignee: Clarion Co., Ltd.Inventors: Mutsumi Nakano, Keisuke Mutou, Tomonori Tanaka
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Publication number: 20190387379Abstract: The invention efficiently realizes time division multiplexed channel access in a mixture of a vehicle-to-vehicle communication device using an approximate frequency band and a direct mobile communication terminal. The vehicle-to-vehicle communication device includes a mobile communication unit, a threshold storage unit that stores a threshold value as to whether or not a predetermined control channel for vehicle-to-vehicle communication is an idle channel, a level detector that outputs a predetermined detection signal when a radio wave intensity of the predetermined control channel is larger than the threshold value, and a timer unit that transmits a signal to the level detector when the time counting for a predetermined time expires. The mobile communication unit transmits the radio wave of the direct communication of the mobile communication when the level detector receives the signal and the radio wave strength of the predetermined control channel does not exceed the threshold value.Type: ApplicationFiled: June 7, 2019Publication date: December 19, 2019Inventors: Yoshikazu SUGIYAMA, Tomonori TANAKA, Keisuke MUTOU, Wataru KIMURA, Makoto TAKESHIMA
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Publication number: 20190327704Abstract: An object is to enable a receiving side to estimate a position of a vehicle on a transmission side to be estimated with high accuracy.Type: ApplicationFiled: December 22, 2017Publication date: October 24, 2019Applicant: CLARION CO., LTD.Inventors: Mutsumi NAKANO, Keisuke MUTOU, Tomonori TANAKA
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Patent number: 9645969Abstract: An information system for automotive includes a plurality of on-vehicle devices each installed in a vehicle and a server device connected with the on-vehicle devices via a communication network. The plurality of on-vehicle devices each include an acceleration/deceleration change detection unit that detects an acceleration/deceleration change of the vehicle equipped with the on-vehicle device and a transmission unit that transmits acceleration/deceleration information pertaining to the detected acceleration/deceleration change. The server device includes a reception unit that receives the acceleration/deceleration information, a statistical parameter calculating unit that calculates statistical parameters to be used to estimate an extent of energy consumption or energy regeneration based upon the received acceleration/deceleration information, and an estimating unit for estimating the extent of energy consumption or energy regeneration based upon the calculated statistical parameters.Type: GrantFiled: December 28, 2012Date of Patent: May 9, 2017Assignee: Clarion Co., Ltd.Inventors: Shinya Tagawa, Keisuke Mutou, Mika Sugimoto
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Patent number: 9346362Abstract: An energy estimation device includes: an energy change quantity estimation unit that estimates an energy change quantity of a vehicle for each of links; an axle torque calculation unit that calculates, based upon the estimated energy change quantity, an axle torque of the vehicle for a regeneration link in which energy is regenerated upon traveling of the vehicle; an allocation ratio calculation unit that calculates, based upon the calculated axle torque, an allocation ratio of a regeneration brake relative to a friction brake of the vehicle for the regeneration link; and a regeneration energy estimation unit that estimates regeneration energy of the vehicle for the regeneration link based upon the energy change quantity and the allocation ratio.Type: GrantFiled: June 7, 2013Date of Patent: May 24, 2016Assignees: Clarion Co., Ltd., Nissan Motor Co., Ltd.Inventors: Shinya Tagawa, Keisuke Mutou, Masaki Endo, Mika Sugimoto
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Publication number: 20150151638Abstract: An energy estimation device includes: an energy change quantity estimation unit that estimates an energy change quantity of a vehicle for each of links; an axle torque calculation unit that calculates, based upon the estimated energy change quantity, an axle torque of the vehicle for a regeneration link in which energy is regenerated upon traveling of the vehicle; an allocation ratio calculation unit that calculates, based upon the calculated axle torque, an allocation ratio of a regeneration brake relative to a friction brake of the vehicle for the regeneration link; and a regeneration energy estimation unit that estimates regeneration energy of the vehicle for the regeneration link based upon the energy change quantity and the allocation ratio.Type: ApplicationFiled: June 7, 2013Publication date: June 4, 2015Inventors: Shinya Tagawa, Keisuke Mutou, Masaki Endo, Mika Sugimoto
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Patent number: 9014959Abstract: An energy-consumption calculation device includes an energy-consumption estimation unit to estimate energy consumption in a predetermined section; an actual energy consumption identification unit to identify an actual energy consumption supplied in the predetermined section by an energy-supply unit; an energy-consumption correction unit to correct the energy consumption in the predetermined section estimated by the energy consumption estimation unit in accordance with a difference between the energy consumption in the predetermined section estimated by the energy consumption estimation unit and the actual energy consumption in the predetermined section identified by the actual energy consumption identification means; and display unit adapted to identify and display, by using the energy consumption in the predetermined section corrected by the energy consumption correction means, a possible travel range by which travel is possible with a suppliable energy amount of the energy supply unit.Type: GrantFiled: June 5, 2012Date of Patent: April 21, 2015Assignees: Clarion Co., Ltd., Nissan Motor Co., Ltd.Inventors: Hideyuki Kanno, Mika Sugimoto, Shinya Tagawa, Keisuke Mutou
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Patent number: 8947259Abstract: A vehicle wrong-way travel detection device includes a map information storage unit where map information is stored, a decision-making point setting unit that sets, based upon the map information stored in the map information storage unit, the connecting point located ahead along a subject vehicle traveling direction as a decision-making point, a wrong-way travel decision-making area setting unit that sets wrong-way travel decision-making areas for at least one of a plurality of roads connected to the decision-making point, and a wrong-way travel decision-making unit that makes a decision, based upon the direction of traffic flow set for a unidirectional traffic road connected to the decision-making point and the subject vehicle traveling direction, as to whether or not the subject vehicle is traveling against the flow of traffic on the unidirectional traffic road.Type: GrantFiled: May 2, 2014Date of Patent: February 3, 2015Assignee: Clarion Co., Ltd.Inventors: Shinya Tagawa, Keisuke Mutou, Hajime Kasai, Akihiko Kouzai
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Patent number: 8898005Abstract: An on-board apparatus includes: a map data storage unit in which map data that include altitude information are stored; a subject vehicle position detection unit that detects a subject vehicle position; and a calculation target geographical point setting unit that sets a calculation target geographical point based upon the subject vehicle position, wherein a road grade at the calculation target geographical point is calculated based upon altitudes of a plurality of geographical points that include at least a geographical point present ahead of the calculation target geographical point and a geographical point present behind the calculation target geographical point.Type: GrantFiled: February 27, 2013Date of Patent: November 25, 2014Assignee: Clarion Co., Ltd.Inventors: Yoshiyuki Mizuno, Keisuke Mutou
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Publication number: 20140244146Abstract: A vehicle wrong-way travel detection device includes a map information storage unit where map information is stored, a decision-making point setting unit that sets, based upon the map information stored in the map information storage unit, the connecting point located ahead along a subject vehicle traveling direction as a decision-making point, a wrong-way travel decision-making area setting unit that sets wrong-way travel decision-making areas for at least one of a plurality of roads connected to the decision-making point, and a wrong-way travel decision-making unit that makes a decision, based upon the direction of traffic flow set for a unidirectional traffic road connected to the decision-making point and the subject vehicle traveling direction, as to whether or not the subject vehicle is traveling against the flow of traffic on the unidirectional traffic road.Type: ApplicationFiled: May 2, 2014Publication date: August 28, 2014Applicant: Clarion Co., Ltd.Inventors: Shinya Tagawa, Keisuke Mutou, Hajime Kasai, Akihiko Kouzai
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Publication number: 20140207363Abstract: An energy-consumption calculation device includes an energy-consumption estimation unit to estimate energy consumption in a predetermined section; an actual energy consumption identification unit to identify an actual energy consumption supplied in the predetermined section by an energy-supply unit; an energy-consumption correction unit to correct the energy consumption in the predetermined section estimated by the energy consumption estimation unit in accordance with a difference between the energy consumption in the predetermined section estimated by the energy consumption estimation unit and the actual energy consumption in the predetermined section identified by the actual energy consumption identification means; and display unit adapted to identify and display, by using the energy consumption in the predetermined section corrected by the energy consumption correction means, a possible travel range by which travel is possible with a suppliable energy amount of the energy supply unit.Type: ApplicationFiled: June 5, 2012Publication date: July 24, 2014Applicants: Clarion Co., Ltd., Nissan Motor Co., Ltd.Inventors: Hideyuki Kanno, Mika Sugimoto, Shinya Tagawa, Keisuke Mutou
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Patent number: 8754782Abstract: A vehicle wrong-way travel detection device includes a map information storage unit where map information is stored, a decision-making point setting unit that sets, based upon the map information stored in the map information storage unit, the connecting point located ahead along a subject vehicle traveling direction as a decision-making point, a wrong-way travel decision-making area setting unit that sets wrong-way travel decision-making areas for at least one of a plurality of roads connected to the decision-making point, and a wrong-way travel decision-making unit that makes a decision, based upon the direction of traffic flow set for a unidirectional traffic road connected to the decision-making point and the subject vehicle traveling direction, as to whether or not the subject vehicle is traveling against the flow of traffic on the unidirectional traffic road.Type: GrantFiled: March 11, 2011Date of Patent: June 17, 2014Assignee: Clarion Co., Ltd.Inventors: Shinya Tagawa, Keisuke Mutou, Hajime Kasai, Akihiko Kouzai
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Publication number: 20130044009Abstract: A vehicle wrong-way travel detection device includes a map information storage unit where map information is stored, a decision-making point setting unit that sets, based upon the map information stored in the map information storage unit, the connecting point located ahead along a subject vehicle traveling direction as a decision-making point, a wrong-way travel decision-making area setting unit that sets wrong-way travel decision-making areas for at least one of a plurality of roads connected to the decision-making point, and a wrong-way travel decision-making unit that makes a decision, based upon the direction of traffic flow set for a unidirectional traffic road connected to the decision-making point and the subject vehicle traveling direction, as to whether or not the subject vehicle is traveling against the flow of traffic on the unidirectional traffic road.Type: ApplicationFiled: March 11, 2011Publication date: February 21, 2013Applicant: Clarion Co.,Ltd.Inventors: Shinya Tagawa, Keisuke Mutou, Hajime Kasai, Akihiko Kouzai
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Patent number: 7788028Abstract: A navigation system includes: a detection unit that detects a vehicle to be in a stationary state or in a traveling state; a display monitor at which a roadmap is displayed; and a manual route specification unit that allows a road traced on the display monitor to be specified as a route when the vehicle is detected to be in a stationary state by the detection unit and does not allow the road traced on the display monitor to be specified as the route when the vehicle is detected to be in a traveling state by the detection unit.Type: GrantFiled: December 7, 2006Date of Patent: August 31, 2010Assignee: Xanavi Informatics CorporationInventors: Yoji Matsuoka, Teruyuki Ishida, Keisuke Mutou, Takashi Yoshimaru, Mami Nomura, Takaaki Ishii, Tsugumichi Owaki
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Patent number: 7577518Abstract: A navigation system includes: a roadmap display unit that displays a roadmap at a display monitor; a current position detection unit that detects a current position of the navigation system; a setting unit that sets a right turn instruction or a left turn instruction for an intersection displayed in the roadmap; and a guidance unit that provides guidance based upon the right turn instruction or the left turn instruction having been set, as the detected current position moves to a point at or within a predetermined distance to the intersection having been set via the setting unit.Type: GrantFiled: March 31, 2006Date of Patent: August 18, 2009Assignee: Xanavi Informatics CorporationInventors: Teruyuki Ishida, Keisuke Mutou, Yoji Matsuoka, Takaaki Ishii, Mami Nomura, Takashi Yoshimaru, Tsugumichi Owaki
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Patent number: 7512483Abstract: According to the 1st aspect of the invention, a navigation system comprises: a storage unit that stores map data managed with links representing smallest road units; a road map display unit that displays a road map based upon the map data; a depressed position detection unit that detects a depressed position on the road map on display; and a route setting unit that extracts a corresponding link corresponding to the depressed position and sets the extracted corresponding link as a route to a destination based upon the map data, and the route setting unit extracts a link adjacent to the corresponding link and makes a decision as to whether or not the adjacent link can be entered from the corresponding link based upon the map data.Type: GrantFiled: April 26, 2006Date of Patent: March 31, 2009Assignee: Xanavi Informatics CorporationInventors: Yoji Matsuoka, Teruyuki Ishida, Keisuke Mutou, Hiroaki Konda, Takashi Yoshimaru, Takaaki Ishii, Mami Nomura, Tsugumichi Owaki
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Publication number: 20070260395Abstract: A navigation system includes: a detection unit that detects a vehicle to be in a stationary state or in a traveling state; a display monitor at which a roadmap is displayed; and a manual route specification unit that allows a road traced on the display monitor to be specified as a route when the vehicle is detected to be in a stationary state by the detection unit and does not allow the road traced on the display monitor to be specified as the route when the vehicle is detected to be in a traveling state by the detection unit.Type: ApplicationFiled: December 7, 2006Publication date: November 8, 2007Applicant: Xanavi Informatics CorporationInventors: Yoji Matsuoka, Teruyuki Ishida, Keisuke Mutou, Takashi Yoshimaru, Mami Nomura, Takaaki Ishii, Tsugumichi Owaki