Abstract: There is provided a communication device comprising: a wireless communication circuit configured to control wireless communication with a portable device in conformity with a specific communication standard; a capacitive sensor circuit configured to detect proximity of an object on a basis of a change in capacitance; an antenna configured to be used for both transmitting/receiving a wireless signal conforming to the specific communication and detecting the capacitance; a high-pass filter disposed between the wireless communication circuit and the antenna; and a low-pass filter disposed between the capacitive sensor circuit and the antenna, wherein the communication device is configured to be disposed in a gripping portion to be gripped by a user carrying the portable device.

Abstract: Provided in a vehicle are: an external communications unit provided outside the compartment of the vehicle; and an internal communications unit provided inside the vehicle compartment. A position determination system includes a data acquisition unit that obtains reception signal strength data for radio waves that have been communicated and measured, between the external communications unit and a terminal and between the internal communications unit and the terminal. The position determination system also includes a position determination unit that determines whether the terminal is positioned outside or inside the vehicle, from the results of comparison between the size of data obtained from communication between the external communications unit and the terminal and between the internal communications unit and the terminal. In addition, the external communications unit is disposed inside a body component located around a rear wheel of the vehicle.

Abstract: To provide a mechanism that can further improve security of an electronic key installed in a vehicle interior. There is provided a housing device configured to store an electronic key configured to perform wireless communication with an in-vehicle device mounted on a vehicle, the housing device comprising: a housing formed by using a material that shields a first signal transmitted by the in-vehicle device; a trigger signal reception antenna configured to receive a trigger signal transmitted by a portable device carried by a user; and a control mechanism configured to control whether or not to enable the first signal to reach an inside of the housing based on the trigger signal, wherein the second signal transmitted by the electronic key that has received the first signal is used to control a control target device installed in the vehicle.

Abstract: A tire position determination system provided in a vehicle including a first tire and a second tire includes an initiator that transmits a command signal, a first detector attached to the first tire, a second detector attached to the second tire, and a monitoring unit. A distance between the first tire and the initiator is equal to or shorter than a distance between the second tire and the initiator. Each of the first detector and the second detector includes an acceleration sensor. A detection signal includes a detection value from the acceleration sensor. The monitoring unit performs determination processing for determining a position of the first tire and a position of the second tire based on positional relation between the detector and the initiator estimated from the detection value from the acceleration sensor.

Abstract: A tire position determination system includes a first tire detector, a revolving body detector, and a monitoring unit. The first tire detector is attached to a first tire and detects an acceleration. The revolving body detector is attached to a first revolving body and detects an acceleration. The monitoring unit obtains first correspondence representing relation between a first value and a second value during a first period, obtains second correspondence representing relation between a third value and a fourth value during a second period, compares the first correspondence and the second correspondence with each other, and determines whether or not the first tire revolves in synchronization with the first revolving body.

Abstract: There is provided a determination device comprising a determination section configured to determine a direction of a position of an external device on a basis of a synthetic radio wave obtained by combining a first radio wave and a second radio wave, the first radio wave being transmitted from the external device and received by a first antenna, the second radio wave being transmitted from the external device and received by a second antenna, wherein delay between the first radio wave and the second radio wave is designed to be about ¼ wavelength before generating the synthetic radio wave, and the second radio wave is further delayed by about ½ wavelength.

Abstract: A tire revolution direction determination system includes a detection device arranged in each of two tires coupled back-to-back and a monitoring unit. The detection device includes a first detector that detects a first acceleration in a tire diameter direction and a second detector that detects a second acceleration in the tire diameter direction. The first detector is arranged in front of the second detector in a reference direction. When the monitoring unit receives the first acceleration and the second acceleration from the detection device while a vehicle travels forward, it specifies change over time of the first acceleration and change over time of the second acceleration and determines whether a direction of revolution of the tire where the detection device is arranged is the reference direction based on whether change over time of the first acceleration is more advanced than change over time of the second acceleration.

Abstract: A vehicle-mounted system provided in a vehicle including a tire includes a detector attached to the tire, the detector transmitting a detection signal, and a monitoring unit that determines a position of the tire based on a plurality of detection signals received from the detector. The detector determines a direction of revolution of the tire, and when the detector determines that the direction of revolution of the tire has changed, it switches a frequency of transmission of the detection signal from a first frequency to a second frequency higher than the first frequency.

Abstract: A driving assistance device includes a vibration-imparting unit to impart vibration to at least one of a seat and a seat belt on the side of a driver of a vehicle, and a control unit to, after the vehicle is transitioned to a movable state by start of driving assistance of the vehicle, notify the driver that it is ready to accept an operation by controlling the vibration-imparting unit to impart vibration to at least one of the seat and the seat belt.

Abstract: An operation device has a first displacement portion that is displaceable by being operated by an occupant of a vehicle, and a second displacement portion that is supported at the first displacement portion and that is displaceable with respect to the first displacement portion by being operated by an occupant of the vehicle. Further, the operation device has a first locking portion and a second locking portion that, at a time when a mode of the vehicle is a first mode, permit displacement of the first displacement portion and restrict displacement of the second displacement portion with respect to the first displacement portion, and, at a time when the mode of the vehicle is a second mode, restrict displacement of the first displacement portion and permit displacement of the second displacement portion with respect to the first displacement portion.

Abstract: A vehicle 2 is provided with an authentication system 4 which enables operating a user's terminal 3 as a key to the vehicle 2. The authentication system 4 performs authentication by means of near-field communication between the terminal 3 and a wireless authentication device 22 and operates a device 20. A determination unit 33 confirms the use state of the terminal 3 at the time when near-field communication was performed, and determines whether or not the confirmed use state of the terminal 3 satisfies a condition for stopping or restricting the key function. If the determination unit 33 has determined that the confirmed use state of the terminal 3 satisfies the condition for stopping or restricting the key function, then a processing unit 36 performs processing for stopping or restricting the key function.

Abstract: A control system comprising: a sensor configured to measure a distance to an object, and obtain a distance measurement value, the object existing in a measurement target space that is a space in which a position of an upper limb of a user who tries to operate a target object that is an object controlled by the control system is assumed to be found, and the distance measurement value being a value that indicates the measured distance; and a control section configured to execute a process related to the target object based on the distance measurement value obtained by the sensor.

Abstract: A vehicle control system includes a terminal including a storage unit to store additional function information generated by software configured to add a new function to functionality of at least one electronic device mounted on a vehicle and a first communication unit to output the additional function information, and a vehicle control device including a second communication unit to communicate with the terminal through the first communication unit and configured to add a new function to the at least one electronic device based on the additional function information obtained from the terminal through the second communication unit.

Abstract: An operation device includes a first displacement portion that is displaceable by being operated by an occupant of a vehicle, a second displacement portion supported at the first displacement portion, and an extension/retraction locking portion. The second displacement portion is displaceable with respect to the first displacement portion by being operated by an occupant of the vehicle. In a state in which the first displacement portion is positioned at a first position, the extension/retraction locking portion restricts displacement of the second displacement portion with respect to the first displacement portion. In a state in which the first displacement portion is positioned at a second position, the extension/retraction locking portion permits displacement of the second displacement portion with respect to the first displacement portion.

Abstract: A sensor outputs distance information indicating a distance to an object located in a detection area. A control device controls an operation of a device to be controlled based on a fact that the distance information satisfies prescribed conditions that include: i) a condition that the distance exhibits a change corresponding to an entry of the object into the detection area; ii) a condition that the distance maintains a first value for at least a first time length; and iii) a condition that a change of the distance including a monotonic decrease from the first value and a subsequent monotonic increase to a second value is finished within a second time length, wherein a difference between the first value and the second value is no greater than a threshold value.

Abstract: An authentication system includes a first controller that performs wireless communication with a mobile terminal and a first authentication unit that executes authentication of the mobile terminal including ID authentication and code authentication through the wireless communication performed between the first controller and the mobile terminal. The first authentication unit executes the code authentication by determining whether a terminal-side calculation result obtained by the mobile terminal matches a controller-side calculation result obtained by the first controller. The authentication system further includes a second controller that communicates with the mobile terminal and a second authentication unit that applies encryption communication using a portion of the terminal-side calculation result and a portion of the controller-side calculation result to communication performed between the second controller and the mobile terminal and authenticates the encryption communication.

Abstract: A vehicle control device includes at least one allowed function that a user is allowed to use and at least one disallowed function that the user is not allowed to use in a plurality of functions of at least one mounted electronic device, and a control unit to perform at least one of changing at least one of the disallowed function into the allowed function and changing at least one of the allowed function into the disallowed function, based on obtained function information about the allowed function and the disallowed function.

Abstract: A driving assistance device includes a determination unit to, when a vehicle is transitioned to a movable state by start of driving assistance of the vehicle and a display related to the driving assistance is presented, determine whether or not a driver is in a drivable state in which the driver is capable of consciously performing an operation, based on whether or not the driver has recognized the display, and a control unit to allow acceptance of the operation when the determination unit determines that the driver is in the drivable state.

Abstract: A sensor outputs distance information indicating a first distance to a first obj ect located in a detection area and a second distance to a second object located in the detection area. A control device allows an operation control of a device to be controlled based on a fact that the distance information satisfies prescribed conditions that include: i) a condition that the first distance and the second distance exhibit changes corresponding to entries of the first object and the second object into the detection area; and ii) a condition that one of the first distance and the second distance monotonically decreases and then monotonically increases while the other one of the first distance and the second distance maintains a first value.

Abstract: There is provided a communication device that is to be disposed on an exterior of a mobile object, the communication device comprising a first antenna configured to transmit a signal for estimating a distance between the first antenna and other communication device in conformity with a first communication standard, wherein directivity of the signal transmitted by the first antenna is formed in such a manner that null related to the directivity is oriented to a front-rear direction of the mobile object.