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 height direction of the mobile object.

Abstract: An antenna is configured to receive authentication information through wireless communication from a mobile device adapted to be carried by a user. A detector is configured to perform detection of approach or contact of an object to be detected with respect to the antenna based on a change in an electrostatic capacitance. A control device is configured to validate the detection in response to an approval of authentication of the mobile device that is performed with the authentication information.

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: An antenna is configured to receive authentication information through wireless communication from a mobile device adapted to be carried by a user. A detector is configured to perform detection of approach or contact of an object to be detected with respect to the antenna based on a change in an electrostatic capacitance. A control device is configured to control an operation of a device to be controlled based on a result of the detection in addition to authentication for authenticating the mobile device with the authentication information.

Abstract: A vehicle control device includes an actuation unit that actuates an anomaly control switch that acknowledges execution of safety control, which improves safety during driving of a vehicle, upon detection of an occupant in an anomalous state from a monitoring result of a state of the occupant of the vehicle. The actuation unit causes the anomaly control switch to be actuated to allow the occupant to recognize a control content of the safety control. The vehicle control device further includes an operation acknowledgement unit that acknowledges operation of the anomaly control switch and a controller that executes the safety control when the operation acknowledgement unit acknowledges the operation of the anomaly control switch.

Abstract: In a key cylinder device, an antenna coil is disposed so as to form a loop around a rotor that is adapted to perform a rotary operation with a mechanical key. A control device is configured to allow locking/unlocking of the reclosable body based on proximity wireless communication performed between the antenna coil and an antenna installed in a mobile device that is adapted to be carried by a user.

Abstract: A casing has a housing section adapted to house a communication device. The communication device is configured to transmit, in response to a first signal, a second signal for controlling a controlled device. A controller is configured to cause an actuator to actuate a movable portion of the communication device so as to transmit the second signal in a case where the communication device receives a trigger signal from a mobile device adapted to be carried by a user. The controller is configured to cause a power supply control device to disable power supply a power source to the communication device in a case where an intensity of the first signal detected by a detector is no less than a threshold value while the first signal is not received by the communication device.

Abstract: A casing has a housing section adapted to house an electronic key. The casing is formed of a material capable of blocking a particular frequency band. A controller is configured to cause an actuator to actuate a movable portion of the electronic key to transmit a signal for controlling a controlled device with the particular frequency band while switching a part of the casing into a state that the signal is allowed to pass, in a case where a transceiver receives a trigger signal from a mobile device.

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 reception apparatus includes a receiver and circuitry. The receiver receives, from a transmission apparatus, a plurality of packets that include code word symbols which include an information word symbol and a parity symbol. The information word symbol is generated from transmission information. The parity symbol is calculated from the information word symbols. The circuitry decodes the code word symbols that are included in the plurality of packets. The number of first packets and the number of second packets among the plurality of packets are shared between the transmission apparatus and the reception apparatus. Each of the first packets includes the information word symbol. Each of the second packets includes the parity symbol.

Abstract: A communication device is configured to form a wireless communication area at least outside of a cabin arranged to be opened/closed by an opening/closing body. A magnetic source is configured to form a magnetic field at least outside of the cabin. A mobile device is adapted to be carried by a user. A magnetic sensor is installed in the mobile device and configured to detect magnetism. A control device is configured to determine whether an authentication processing for authenticating the mobile device located in the wireless communication area with radio waves is succeeded, and configured to control an operation of a controlled device in a case where a specific magnetism is detected by the magnetic sensor and it is determined that the authentication processing is succeeded.

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: An unauthorized communication establishment prevention system includes a measurement unit arranged in at least one of a terminal and a communication peer. The measurement unit implements an unauthorized communication detection function and obtains a measurement value corresponding to a distance between the terminal and the communication peer. The system further includes a process execution unit that controls initiation, based on a determination result of whether the measurement value is appropriate, of an authentication performed through wireless communication established between the terminal and the communication peer even when the terminal is not operated. The system further includes a monitoring unit that monitors a battery level of the terminal and a suspension unit that suspends the unauthorized communication detection function when the battery level of the terminal is less than a specified amount that is not a battery depletion level.

Abstract: A system that prevents accomplishment of unauthorized communication between a terminal and a communication peer is provided. The system includes a measurement unit and a process execution unit. The measurement unit is arranged on at least one of the terminal or the communication peer to obtain a measured value corresponding to a distance between the terminal and the communication peer. The process execution unit determines whether the measured value is appropriate and controls actuation for authentication of the terminal through wireless communication performed between the terminal and the communication peer based on the determination result. The measurement unit executes a process for obtaining the measured value in a time period during which the communication for the authentication is not performed.

Abstract: There is provided a housing device configured to store an electronic key configured to perform wireless communication with an in-vehicle device, the housing device comprising: a housing formed by using a material that shields a first signal of a first frequency band transmitted by the in-vehicle device; a trigger signal reception antenna configured to receive a trigger signal transmitted by a portable device; and an actuator disposed inside the housing, and configured to operate an operation section installed in the electronic key based on the trigger signal, wherein the housing includes a passage structure that allows a second signal of a second frequency band to pass outside, the second signal being transmitted by the electronic key, and having a shorter wavelength than a wavelength of the first signal, and the second signal is used to control a control target device installed in the vehicle.

Abstract: An unauthorized communication establishment prevention system includes a measurement unit arranged in at least one of a terminal and a communication peer. The measurement unit implements an unauthorized communication detection function and obtains a measurement value corresponding to a distance between the terminal and the communication peer. The system further includes a process execution unit that controls initiation, based on a determination result of whether the measurement value is appropriate, of an authentication performed through wireless communication established between the terminal and the communication peer even when the terminal is not operated. The system further includes a monitoring unit that monitors a battery level of the terminal and a suspension unit that suspends the unauthorized communication detection function when the battery level of the terminal is less than a specified amount that is not a battery depletion level.

Abstract: There is provided a housing device configured to store an electronic key configured to perform wireless communication with an in-vehicle device, the housing device comprising: a housing formed by using a material that shields a first signal of a first frequency band transmitted by the in-vehicle device; a trigger signal reception antenna configured to receive a trigger signal transmitted by a portable device; and an actuator disposed inside the housing, and configured to operate an operation section installed in the electronic key based on the trigger signal, wherein the housing includes a passage structure that allows a second signal of a second frequency band to pass outside, the second signal being transmitted by the electronic key, and having a shorter wavelength than a wavelength of the first signal, and the second signal is used to control a control target device installed in 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 viewing device for a vehicle has: a monitor that displays a captured image of a vehicle rear side; and a control device that carries out display control that compresses the captured image such that a compression rate gradually becomes higher from a vehicle inner side toward outer sides, and displays an image on the monitor.

Abstract: An acoustic device to be mounted in a vehicle, the acoustic device including at least two speakers arranged before a front face of an occupant sitting in a seat to sandwich a center line of the seat and a control unit that controls characteristics of sound output from each of the speakers such that a stereophonic sound image produced by sounds output from the at least two speakers is maintained. The at least two speakers are installed on a steering wheel of the vehicle.