Patents by Inventor Wataru Nakai

Wataru Nakai 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).

  • Publication number: 20240144702
    Abstract: A prediction device includes a state detector that detects a state related to sleepiness of a driver; an eye-closure duration detector that detects an eye-closure duration of the driver; and a microsleep predictor that predicts that the driver is in the microsleep state, on conditions that the state detector detects the state related to the sleepiness of the driver and that the eye-closure duration detector detects the eye-closure duration that is no shorter than a first duration and no longer than a second duration.
    Type: Application
    Filed: October 18, 2023
    Publication date: May 2, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Chisato IMAMURA, Takayoshi KOYAMA, Wataru NAKAI, Soichi KIMURA
  • Publication number: 20230206657
    Abstract: An estimation apparatus includes: an image information obtainer that obtains image information of a captured image of a driver; a first detector that detects face information indicating facial behavior of the driver, based on the image information; a first reliability calculator that calculates first reliability; a second detector that detects body information indicating body movement of the driver, based on the image information; a second reliability calculator that calculates second reliability; a weight setter that, when the face information and the body information are detected, sets a first weight corresponding to the face information and a second weight corresponding to the body information based on the first reliability and the second reliability; and an estimator that estimates drowsiness of the driver based on the face information weighted by the first weight and the body information weighted by the second weight.
    Type: Application
    Filed: November 15, 2022
    Publication date: June 29, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Chisato IMAMURA, Takayoshi KOYAMA, Wataru NAKAI, Motoyuki OKAYAMA
  • Patent number: 11072343
    Abstract: The driving assistance device acquires, from an autonomous driving controller that determines an action of a vehicle during autonomous driving of the vehicle, action information indicating a first action that the vehicle is caused to execute. The driving assistance device acquires, from a detector that detects a surrounding situation and a travel state of the vehicle, detection information indicating a detection result. The driving assistance device determines a second action which is executable in place of the first action, based on the detection information. The driving assistance device generates a first image representing the first action and a second image representing the second action. The driving assistance device outputs the first image and the second image to a notification device such that the first image and the second image are displayed within a fixed field of view of a driver of the vehicle.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: July 27, 2021
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Koichi Emura, Masanaga Tsuji, Toshiya Mori, Wataru Nakai
  • Patent number: 10919540
    Abstract: Provided is a technology for improving accuracy in determining the next action. Travel history generator generates, for each driver, a travel history associating an environmental parameter indicating a travel environment through which a vehicle has previously traveled with an action selected by the driver in response to the environmental parameter. Acquisition unit acquires a travel history similar to a travel history of a current driver from among travel histories generated by travel history generator. Driver model generator generates a driver model based on the travel history acquired by acquisition unit. Determination unit determines the next action based on the driver model generated by driver model generator) and an environmental parameter indicating a current travel environment of the vehicle.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 16, 2021
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masanaga Tsuji, Toshiya Mori, Koichi Emura, Wataru Nakai
  • Patent number: 10899356
    Abstract: A drowsiness prevention device includes a psychological state estimator and a controller. The psychological state estimator estimates a psychological state of an occupant, based on a state of the occupant detected by a detection device. The controller causes an output device to output a first warning and a second warning which are for alerting the occupant. The psychological state estimator estimates a first psychological state of the occupant which is before the first warning is output and a second psychological state of the occupant which is after the first warning is output. The controller determines details of a second warning, based on only the second psychological state or based on both the first psychological state and the second psychological state.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: January 26, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Makoto Mochizuki, Shinichi Shikii, Masanobu Kanaya, Wataru Nakai
  • Patent number: 10793165
    Abstract: During autonomous driving of a vehicle, useful Information is presented to an occupant. An image generator in driving assistance device generates a first image representing an action the vehicle is capable of executing depending on a travel environment during autonomous driving and a second image representing a basis of the action. Image output unit outputs the first image and the second image generated by the image generator to notification device in the vehicle in association with each other. The action vehicle is capable of executing may be selected from among action candidates by a driver.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: October 6, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kazuya Watanabe, Koichi Emura, Masanaga Tsuji, Toshiya Mori, Wataru Nakai
  • Publication number: 20190382026
    Abstract: A drowsiness prevention device includes a psychological state estimator and a controller. The psychological state estimator estimates a psychological state of an occupant, based on a state of the occupant detected by a detection device. The controller causes an output device to output a first warning and a second warning which are for alerting the occupant. The psychological state estimator estimates a first psychological state of the occupant which is before the first warning is output and a second psychological state of the occupant which is after the first warning is output. The controller determines details of a second warning, based on only the second psychological state or based on both the first psychological state and the second psychological state.
    Type: Application
    Filed: September 2, 2019
    Publication date: December 19, 2019
    Inventors: MAKOTO MOCHIZUKI, SHINICHI SHIKII, MASANOBU KANAYA, WATARU NAKAI
  • Patent number: 10477155
    Abstract: A monitoring target management unit specifies a monitoring target based on vehicle peripheral information acquired from a vehicle exterior image sensor mounted on a vehicle. A display controller highlights the monitoring target specified by the monitoring target management unit. An operation signal input unit receives a user input for updating the monitoring target specified by the monitoring target management unit. The monitoring target management unit updates a monitoring target when the operation signal input unit receives a user input.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: November 12, 2019
    Assignee: PANASONIC INTELELCTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Wataru Nakai
  • Patent number: 10379536
    Abstract: A driving assistance device can be installed in a vehicle in which either an automatic driving mode or a manual driving mode is selected for traveling. A receiving unit receives a switching request for a driving mode. A generating unit generates switching notification information for a switching notice in accordance with the switching request received by the receiving unit. An output unit outputs the switching notification information to a presentation unit that presents, outward from the vehicle, the switching notice indicated by the switching notification information generated by the generating unit.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: August 13, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yuko Arai, Wataru Nakai
  • Publication number: 20190168772
    Abstract: The driving assistance device acquires, from an autonomous driving controller that determines an action of a vehicle during autonomous driving of the vehicle, action information indicating a first action that the vehicle is caused to execute. The driving assistance device acquires, from a detector that detects a surrounding situation and a travel state of the vehicle, detection information indicating a detection result. The driving assistance device determines a second action which is executable in place of the first action, based on the detection information. The driving assistance device generates a first image representing the first action and a second image representing the second action. The driving assistance device outputs the first image and the second image to a notification device such that the first image and the second image are displayed within a fixed field of view of a driver of the vehicle.
    Type: Application
    Filed: January 23, 2019
    Publication date: June 6, 2019
    Inventors: KOICHI EMURA, MASANAGA TSUJI, TOSHIYA MORI, WATARU NAKAI
  • Patent number: 10252726
    Abstract: The driving assistance device acquires, from an autonomous driving controller that determines an action of a vehicle during autonomous driving of the vehicle, action information indicating a first action that the vehicle is caused to execute. The driving assistance device acquires, from a detector that detects a surrounding situation and a travel state of the vehicle, detection information indicating a detection result. The driving assistance device determines a second action which is executable in place of the first action, based on the detection information. The driving assistance device generates a first image representing the first action and a second image representing the second action. The driving assistance device outputs the first image and the second image to a notification device such that the first image and the second image are displayed within a fixed field of view of a driver of the vehicle.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 9, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Koichi Emura, Masanaga Tsuji, Toshiya Mori, Wataru Nakai
  • Patent number: 10228769
    Abstract: An equipment control device includes a receiver that receives sensing result information including a position, a shape, and a movement of a predetermined object and including a position of an eye point of a person, and a controller that, when the sensing result information indicates that the eye point, equipment placed at a predetermined position, and the object align and that the object is in a predetermined shape corresponding to the equipment in advance, determines command information causing to operate the equipment in accordance with the movement of the object in the predetermined shape to an equipment operating device.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: March 12, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Wataru Nakai
  • Patent number: 10181265
    Abstract: An in-vehicle display device includes an image acquiring unit, a position predicting unit, and an image converting unit. The image acquiring unit acquires an image obtained by capturing an object existing around a host vehicle by a camera mounted on the host vehicle. The position predicting unit calculates a first positional relationship between the object and the host vehicle at timing T1 and calculates a second positional relationship between the host vehicle and the object at timing T2 after timing T1 based on the image acquired by the image acquiring unit and a capture timing. Furthermore, the position predicting unit predicts a third positional relationship between the host vehicle and the object at timing T3 after timing T2 based on the first positional relationship and the second positional relationship.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: January 15, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Wataru Nakai
  • Patent number: 10165262
    Abstract: An image processing device (10) comprises the following: an image acquisition unit (1) for acquiring an image in which markers for calibration are captured; an edge detection unit (2) for detecting the edges of the markers in the image; a polygon generating unit (3) for estimating a plurality of straight lines on the basis of the edges and generating a virtual polygon region that is surrounded by the plurality of straight lines, the generation being carried out in the image in a region thereof including regions other than those where markers are installed; and a camera parameter calculation unit (4) for calculating camera parameters on the basis of the characteristic amount, with respect to the image, of the virtual polygon region and the characteristic amount, with respect to real space, of the virtual polygon region.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: December 25, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Koji Arata, Wataru Nakai, Yuko Arai
  • Publication number: 20180356818
    Abstract: A driving assistance device can be installed in a vehicle in which either an automatic driving mode or a manual driving mode is selected for traveling. A receiving unit receives a switching request for a driving mode. A generating unit generates switching notification information for a switching notice in accordance with the switching request received by the receiving unit. An output unit outputs the switching notification information to a presentation unit that presents, outward from the vehicle, the switching notice indicated by the switching notification information generated by the generating unit.
    Type: Application
    Filed: December 16, 2016
    Publication date: December 13, 2018
    Inventors: YUKO ARAI, WATARU NAKAI
  • Publication number: 20180241970
    Abstract: A monitoring target management unit specifies a monitoring target based on vehicle peripheral information acquired from a vehicle exterior image sensor mounted on a vehicle. A display controller highlights the monitoring target specified by the monitoring target management unit. An operation signal input unit receives a user input for updating the monitoring target specified by the monitoring target management unit. The monitoring target management unit updates a monitoring target when the operation signal input unit receives a user input.
    Type: Application
    Filed: September 1, 2016
    Publication date: August 23, 2018
    Inventor: WATARU NAKAI
  • Patent number: 10032274
    Abstract: There is provided a calibration apparatus for calculating a camera installation parameter with respect to a flat surface without preparing two sets of parallel lines on the flat surface, with respect to which the camera installation parameter is to be obtained. An acquirer acquires a photographed image of two linearly-extending lines substantially perpendicular to a flat surface. An extractor extracts the two linearly-extending lines from the acquired image through image processing. A calculator calculates a vanishing point from the extracted two linearly-extending lines and calculates a camera installation parameter with respect to the flat surface on the basis of coordinates of the vanishing point and given coordinates different from the coordinates of the vanishing point.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: July 24, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Wataru Nakai
  • Publication number: 20180151102
    Abstract: A display control device includes: a detector that detects an operating state of a light emitting device that is provided to a vehicle and blinks; and an output controller that, when the detector detects an operation of the light emitting device, outputs a peripheral image captured by an imaging device that images a periphery of the vehicle at timing at which the light emitting device is off, and outputs notification information representing that the light emitting device is operating.
    Type: Application
    Filed: May 10, 2016
    Publication date: May 31, 2018
    Inventors: WATARU NAKAI, TAKASHI OKOHIRA
  • Patent number: 9959635
    Abstract: A state determination device includes a calculator that receives multiple eye region images captured at different timings in a time interval from when a person opening eyes closes the eyes to when the person opens the eyes next and calculates a luminance value relating to multiple pixels included in each of the eye region images and a determiner, wherein the determiner calculates a time interval from a first time point when the luminance value relating to the pixels reaches a predetermined first luminance value for the first time to a second time point when the luminance value relating to the pixels reaches a second luminance value after the first time point; if a time interval from the first time point to the second time point is a first time interval, the determiner determines that the person is in a first state; if the time interval from the first time point to the second time point is a second time interval which is shorter than the first time interval, the determiner determines that the person is in a se
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: May 1, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Wataru Nakai
  • Publication number: 20180105185
    Abstract: During autonomous driving of a vehicle, useful Information is presented to an occupant. An image generator in driving assistance device generates a first image representing an action the vehicle is capable of executing depending on a travel environment during autonomous driving and a second image representing a basis of the action. Image output unit outputs the first image and the second image generated by the image generator to notification device in the vehicle in association with each other. The action vehicle is capable of executing may be selected from among action candidates by a driver.
    Type: Application
    Filed: April 19, 2016
    Publication date: April 19, 2018
    Inventors: KAZUYA WATANABE, KOICHI EMURA, MASANAGA TSUJI, TOSHIYA MORI, WATARU NAKAI