Abstract: A server apparatus includes circuitry configured to acquire utterance information on a traveling location point, the utterance information being provided by occupants of a plurality of vehicles and derive a reason for danger near the traveling location point based on the acquired utterance information.

Abstract: A circuitry estimates a degree of interest in each of destination candidates for each of subject users included in a user group determined based on degree of affinity among multiple users. The circuitry sets a location in which the degree of interest of a first one of the subject users is greater than or equal to a predetermined degree-of-interest threshold value as a first destination. The circuitry provides a second one of the subject users with a first trip proposal when the degree of interest of the second user in the first destination is greater than or equal to the predetermined degree-of-interest threshold value. The circuitry provides the second user with a second trip proposal when the degree of interest of the second user in the first destination is less than the predetermined degree-of-interest threshold value.

Abstract: A proposal subject determination unit selects, from multiple users, a combination of users of which the degree of affinity is a first degree-of-affinity threshold value or greater and determines that the users included in the selected combination are subject to the trip proposal. A proposal execution unit sets a location in which a degree of interest of a first one of the subject users is greater than or equal to a predetermined degree-of-interest threshold value as a destination of the trip proposal and provides the trip proposal having the set location as a destination to the subject users. The proposal execution unit gives a first trip proposal or a second trip proposal to a second user in accordance with a degree of affinity between the subject users, a degree of interest of the second user in the set location, and a trip preference of the second user.

Abstract: A proposal subject determination unit selects, from multiple users, a combination of users of which the degree of affinity is a first degree-of-affinity threshold value or greater and determines that the users included in the selected combination are subject to the trip proposal. A proposal execution unit sets a location in which a degree of interest of a first one of the subject users is greater than or equal to a predetermined degree-of-interest threshold value as a destination of the trip proposal and provides the trip proposal having the set location as a destination to the subject users. The proposal execution unit gives a first trip proposal or a second trip proposal to a second user in accordance with a degree of affinity between the subject users, a degree of interest of the second user in the set location, and a trip preference of the second user.

Abstract: A burden estimation device includes a state space configuration unit, a history learning unit acquiring from the user and storing in a storage unit data related to the burden on the user when the user travels to the destination along the travel route, an individual burden estimation unit evaluating a total travel burden and estimating an individual burden that is the burden on the user in correspondence with each of the states included in the state space through reinforcement learning that sets the total travel burden as a reward, and a total travel burden estimation unit estimating the total travel burden corresponding to an unknown travel route based on the estimated individual burden if the unknown travel route is set and the individual burden has already been estimated for at least some of the states defined in correspondence with the unknown travel route.

Abstract: An information providing device includes an agent ECU that sets a reward function through the use of history data on a response, from a driver, to an operation proposal for an in-vehicle component, and calculates a probability distribution of performance of each of actions constructing an action space in each of states constructing a state space, through reinforced learning based on the reward function. The agent ECU calculates a dispersion degree of the probability distribution. The agent ECU makes a trial-and-error operation proposal to select a target action from a plurality of candidates and output the target action when the dispersion degree of the probability distribution is equal to or larger than a threshold, and makes a definitive operation proposal to fix and output a target action when the value of the dispersion degree of the probability distribution is smaller than the threshold.

Abstract: An information providing device includes an agent ECU that sets a reward function through the use of history data on a response, from a driver, to an operation proposal for an in-vehicle component, and calculates a probability distribution of performance of each of actions constructing an action space in each of states constructing a state space, through reinforced learning based on the reward function. The agent ECU calculates a dispersion degree of the probability distribution. The agent ECU makes a trial-and-error operation proposal to select a target action from a plurality of candidates and output the target action when the dispersion degree of the probability distribution is equal to or larger than a threshold, and makes a definitive operation proposal to fix and output a target action when the value of the dispersion degree of the probability distribution is smaller than the threshold.

Abstract: A user interface evaluation device comprises a design information acquisition unit configured to acquire information on a plurality of components arranged on a user interface screen of the software; a component recognition resource acquisition unit configured to acquire, for each component, component recognition resources which are resources required for recognizing the respective components; and a conformity probability estimation unit configured to calculate, using a probability density function with a total sum of the acquired component recognition resources as a random variable, conformity probability which is a probability that necessary recognition resources which are resources required for recognizing information output on the user interface screen meet predetermined requirements.

Abstract: The system for using a communication terminal has a portable telephone user having a portable telephone, and a vehicle-mounted system is provided in a shared vehicle. In the portable telephone, an NFC is provided, and the vehicle-mounted system in the shared vehicle, an R/W for NFC communication is provided. When communication is performed for a first communication time between the R/W for NFC communication and the NFC by holding up the portable telephone to the R/W for NFC communication provided in the shared vehicle, door locking is performed. In addition, when communication is performed for a second communication time, a usage finishing process is performed.

Abstract: In order to achieve reduction in size, an image position adjustment device (1) includes a light source unit (3) which emits visible light and infrared light, a movable cold mirror (12) which reflects visible light and transmits infrared light, a second scanner mirror (13) which reflects infrared light transmitted through the movable cold mirror (12), a windshield glass (F) which displays an image with visible light reflected by the movable cold mirror (12), and a first image processing unit (5) which images the driver (D) using reflected light of infrared light reflected by the second scanner mirror (13) on the driver (D) to detect a line-of-sight position of the driver (D). The position of an image is adjusted in accordance with the line-of-sight position detected by the first image processing unit (5).

Abstract: Disclosed are an optical element, an optical element array, and a method of manufacturing an optical element capable of forming a desired interface shape. In a microlens and a microlens array, at least one of a transparent liquid forming a liquid phase and microbubbles forming a gas phase is subjected to temperature adjustment by a curvature control part. The transparent liquid and the microbubbles subjected to temperature adjustment thermally expands or contracts, such that the shape of a curved interface formed between the transparent liquid and the microbubbles is changed.

Abstract: A viewpoint location computation device that computes a viewpoint location of a driver includes: a first estimated viewpoint location computation unit that computes a first estimated viewpoint location based on the angle of the right side-view mirror and a driver's seating center plane of the vehicle; a second estimated viewpoint computation unit that computes a second estimated viewpoint location based on the angle of the left side-view mirror and the driver's seating center plane of the vehicle; an identical condition determination unit that determines whether the estimated viewpoint locations are identical; and a viewpoint location computation unit that computes the estimated viewpoint location as the viewpoint location of the driver when it is determined that the estimated viewpoint locations are identical, wherein the viewpoint location computation unit computes the viewpoint location based on the estimated viewpoint locations when it is determined that the respective estimated viewpoint locations are no

Abstract: The system for using a communication terminal has a portable telephone user having a portable telephone, and a vehicle-mounted system is provided in a shared vehicle. In the portable telephone, an NFC is provided, and the vehicle-mounted system in the shared vehicle, an R/W for NFC communication is provided. When communication is performed for a first communication time between the R/W for NFC communication and the NFC by holding up the portable telephone to the R/W for NFC communication provided in the shared vehicle, door locking is performed. In addition, when communication is performed for a second communication time, a usage finishing process is performed.

Abstract: A viewpoint location computation device that computes a viewpoint location of a driver includes: a first estimated viewpoint location computation unit that computes a first estimated viewpoint location based on the angle of the right side-view minor and a driver's seating center plane of the vehicle; a second estimated viewpoint computation unit that computes a second estimated viewpoint location based on the angle of the left side-view minor and the driver's seating center plane of the vehicle; an identical condition determination unit that determines whether the estimated viewpoint locations are identical; and a viewpoint location computation unit that computes the estimated viewpoint location as the viewpoint location of the driver when it is determined that the estimated viewpoint locations are identical, wherein the viewpoint location computation unit computes the viewpoint location based on the estimated viewpoint locations when it is determined that the respective estimated viewpoint locations are not

Abstract: In order to achieve reduction in size, an image position adjustment device (1) includes a light source unit (3) which emits visible light and infrared light, a movable cold mirror (12) which reflects visible light and transmits infrared light, a second scanner mirror (13) which reflects infrared light transmitted through the movable cold mirror (12), a windshield glass (F) which displays an image with visible light reflected by the movable cold mirror (12), and a first image processing unit (5) which images the driver (D) using reflected light of infrared light reflected by the second scanner mirror (13) on the driver (D) to detect a line-of-sight position of the driver (D). The position of an image is adjusted in accordance with the line-of-sight position detected by the first image processing unit (5).

Abstract: Disclosed are an optical element, an optical element array, and a method of manufacturing an optical element capable of forming a desired interface shape. In a microlens and a microlens array, at least one of a transparent liquid forming a liquid phase and microbubbles forming a gas phase is subjected to temperature adjustment by a curvature control part. The transparent liquid and the microbubbles subjected to temperature adjustment thermally expands or contracts, such that the shape of a curved interface formed between the transparent liquid and the microbubbles is changed.

Abstract: An optical modulating device including a driving circuit generating a driving voltage corresponding to an input signal, an oscillator generating a signal having a low frequency signal lower than that of the input signal, an MZ modulator receiving a DC bias voltage superposed with the low frequency signal and the driving voltage, to generate a modulated optical signal according to the input signal, a photoelectric converting unit for converting the modulated optical signal into an electric signal, a low frequency signal detecting circuit which extracts the low frequency signal component contained in the electric signal, multiplies the low frequency signal component by the low frequency signal outputted by the low frequency oscillator, and then extracts a DC component from a multiplied output signal, and a control circuit for extracting a maximized DC component from the low frequency signal detecting circuit by controlling the DC bias voltage.

Abstract: An optical modulating device including a driving circuit generating a driving voltage corresponding to an input signal, an oscillator generating a signal having a low frequency signal lower than that of the input signal, an MZ modulator receiving a DC bias voltage superposed with the low frequency signal and the driving voltage, to generate a modulated optical signal according to the input signal, a photoelectric converting unit for converting the modulated optical signal into an electric signal, a low frequency signal detecting circuit which extracts the low frequency signal component contained in the electric signal, multiplies the low frequency signal component by the low frequency signal outputted by the low frequency oscillator, and then extracts a DC component from a multiplied output signal, and a control circuit for extracting a maximized DC component from the low frequency signal detecting circuit by controlling the DC bias voltage.