Abstract: According to an embodiment, a power transmission device performs power transmission without contact with a power reception device. A control circuit of the power transmission device obtains, as a reference value, a standby current in a standby state in which the power transmission to the power reception device is not performed. The control circuit sets, as a foreign matter detection threshold, a value obtained by adding a constant value to the reference value or a value obtained by adding a constant ratio to the reference value. Further, in the standby state, when the current value input to the power transmission circuit and detected by the current detection circuit is equal to or larger than the threshold, the control circuit determines that there is a foreign matter on the power transmission coil.

Abstract: According to an embodiment, a power transmission device performs power transmission without contact with a power reception device. A control circuit of the power transmission device obtains, as a reference value, a standby current in a standby state in which the power transmission to the power reception device is not performed. The control circuit sets, as a foreign matter detection threshold, a value obtained by adding a constant value to the reference value or a value obtained by adding a constant ratio to the reference value. Further, in the standby state, when the current value input to the power transmission circuit and detected by the current detection circuit is equal to or larger than the threshold, the control circuit determines that there is a foreign matter on the power transmission coil.

Abstract: The present technology relates to a distance measurement sensor, a signal processing method, and a distance measurement module that enables detecting that an object to be measured is a transparent object such as glass. The distance measurement sensor includes a signal processing unit that calculates a distance to an object and a degree of confidence from a signal obtained by a light receiving unit that receives reflected light returned by reflection, by the object, of irradiation light emitted from a predetermined light emitting source, and outputs a determination flag determining whether or not the object that is an object to be measured is a transparent object. The present technology can be applied to, for example, a distance measurement module that measures a distance to a subject, and the like.

Abstract: According to an embodiment, an IC card associated with a parent IC card includes a sensor, a first storage unit, a second storage unit, a communication unit, and a processor. A sensor is configured to acquire biological information. The first storage unit is configured to store a template with which the biological information is verified. The second storage unit is configured to store second data related to first data stored in the parent IC card. The communication unit is configured to transmit and receive data to and from a host device. The processor is configured to authenticate a user based on a verification result of the biological information and the template in accordance with a command from the host device, and transmit at least some of the second data to the host device if the authentication of the user is successful.

Abstract: A non-contact power transmission device includes a power transmission circuit connected to a power transmission coil and configured to transmit power to a power reception coil through the power transmission coil in a non-contact manner, and a control circuit configured to perform first power transmission by which power at a first level is transmitted from the power transmission coil. The control circuit is further configured to perform a foreign object detection by which a foreign object between the power transmission coil and the power reception coil can be detected, and the first power transmission is performed after the foreign object detection if the foreign object is not detected.

Abstract: According to an embodiment, an authentication device for authenticating a user includes a biological sensor, a storage unit, a communication interface, a detection mechanism, and a processor. The biological sensor acquires biological information. The detection mechanism detects attachment/detachment. The processor authenticates a user using the biological information, and when the authentication is successful, the processor then stores authentication information in the storage unit and turns off the authentication device. When the communication interface receives a magnetic field from an external device, the processor activates the authentication device using power from the communication interface, and upon receipt of an authentication command, if the storage unit stores the authentication information, the processor transmits an authentication signal indicating that authentication is successful to the external device.

Abstract: A battery cover 1 includes a side wall 2 covering a side surface S3 of a battery 100. The side wall 2 includes a first surface layer 11 in contact with the side surface S3 of the battery 100, a second surface layer 12 disposed on an opposite side of the side surface S3 of the battery 100 with respect to the first surface layer 11 in a thickness direction of the side wall 2, a heat insulating layer 13 disposed between the first surface layer 11 and the second surface layer 12 in the thickness direction, and a cushion layer 14 disposed between the first surface layer 11 and the heat insulating layer 13 in the thickness direction.

Abstract: According to one embodiment, an authentication device includes a sensor, a communication interface, a memory and a processor. The sensor acquires biological information. The communication interface communicates with a device. The memory stores feature information of biological information of a registrant for use in biometrics and management information indicating a device which the registrant has a right to use. The processor authenticates whether a user whose biological information has been acquired by the sensor is the registrant having a right to use the device communicated through the communication interface, and transmits a result of the authentication to the device communicated through the communication interface.

Abstract: A control device for a wireless power supply system includes a battery configured to supply power to a first device, a power reception coil, a power reception circuit connected to the power reception coil and configured to adjust a voltage generated by the power reception coil to charge the battery, and a switch circuit connected between the battery and the first device and configured to detect the adjusted voltage applied to the battery. The switch circuit is further configured to, when the adjusted voltage is not detected, electrically connect the battery and the first device, and when the adjusted voltage is detected, electrically disconnect the battery and the first device.

Abstract: A cart charging station includes a supporting member, a power transmission device, and an engaging member. The power transmission device is coupled to the supporting member such that a power transmission surface thereof faces a power receiving surface of a power reception device mounted on a cart at the cart charging station. The power transmission device is configured to transmit electric power to the power reception device in a non-contact manner. The engaging member is configured to engage with the power reception device of the cart and restrict movement of the power reception device in a frontward direction and the width directions of the cart.

Abstract: According to an embodiment, a cart gate for storage of carts that have a power reception device includes a pair of guides spaced from each other in a cart-width direction. The guides extend along a forward cart direction. A power transmission device is mounted on a portion of one of the guides. The power transmission device is configured to provide power, in a non-contact manner, to a power reception device on a cart that is between the pair of guides and at a predetermined cart storage position along the forward cart direction. The minimum distance between the guides in the cart-width direction is greater than a width of the cart, but the difference between the minimum distance and the width of the cart is less than or equal to a power transmitting range of the power transmission device.

Abstract: A cart storage system for storing a movable cart includes a storage plate inclined with respect to a floor in a first direction crossing a moving direction of a cart, a stopper along a back side of the storage plate in the moving direction, and a first holding plate extending along the moving direction, configured to stop movement of the cart in the lateral direction, and disposed a first predetermined distance away from a lateral side of the storage plate.

Abstract: According to one embodiment, a sensor device to be used with a wearable electronic device including a smart terminal device and a band that enables the smart terminal to be worn on a forearm of a user has a first end portion that is nearer the hand of the user when worn on the forearm of the user, a second end portion that is nearer the elbow of the user when worn, and an attachment portion that is configured to connect the sensor to the band. The attachment portion is offset from a midpoint between the first end portion and the second end portion along a direction along the forearm from the elbow to the hand towards the first end portion.

Abstract: In accordance with an embodiment, a power transmission device comprises a power transmission antenna arranged on a side of a cart stored at a storage position to face a power reception antenna arranged in a side surface of the cart so as to transmit electric power towards the side surface of the cart stored at the storage position; and a power transmission circuit configured to transmit the electric power to be received by the power reception antenna arranged in the side surface of the cart from the power transmission antenna.

Abstract: A wireless power supply system includes a power receiving device disposed on a bottom surface of a cart, a guide rail extending along a first direction for guiding wheels of carts, and a plurality of power transmission devices configured to wirelessly transmit power to the power receiving device. The power transmission devices are arranged along the guide rail at predetermined intervals. The guide rail has a plurality of recesses arranged at the predetermined intervals such that one of the power transmission devices faces the power receiving device when a wheel of the cart fits into one of the recesses.

Abstract: According to an embodiment, a power transmission system includes a power transmission antenna, a first rail and a second rail. The power transmission antenna is disposed facing the power reception antenna installed on the side surface of the cart stored in the storage position. The first rail includes a first groove that guides, among a plurality of wheels for moving the cart to the storage position, a first wheel that is closest to the power transmission antenna while the cart is stored in the storage position, and that causes a distance between the power reception antenna and the power transmission antenna installed on the side surface of the cart to be within a power transmittable range. The second rail includes a second groove that guides, among the plurality of wheels for moving the cart, a second wheel that is different from the first wheel to the storage position.

Abstract: An IC card system includes an IC card management server and an IC card. The IC card management server requests a SIM management server to make an inquiry regarding a user based on card identification information and user information relating to a contract of SIM card, and, in a case that validity of the user is verified, transmits a generation request for generating a registration application registering biometric authentication information, including the card identification information and the secret key, to the SIM management server. The IC card includes a data storage storing the card identification information and the secret key and storing the biometric authentication information and, in a case that authentication based on the card identification information and the secret key through communication with the SIM card based on the registration application is succeed, stores the biometric authentication information based on the biometric information in the data storage.

Abstract: A measurement apparatus includes a measurement circuit configured to measure a first current that flows to an electricity storage device and a second current that flows from the storage device, and a processor configured to detect one of a first state, in which the storage device is fully charged, and a second state, in which the storage device is fully discharged. The processor is configured to, upon detection of one of the first and second states, control the measurement circuit to start the measurement of the first current and the second current, calculate a remaining amount of power of the storage device using the measured first current and the measured second current, and output the calculated remaining amount of power.

Abstract: A control device for a wireless power supply system includes a battery configured to supply power to a first device, a power reception coil, a power reception circuit connected to the power reception coil and configured to adjust a voltage generated by the power reception coil to charge the battery, and a switch circuit connected between the battery and the first device and configured to detect the adjusted voltage applied to the battery. The switch circuit is further configured to, when the adjusted voltage is not detected, electrically connect the battery and the first device, and when the adjusted voltage is detected, electrically disconnect the battery and the first device.

Abstract: A noncontact power transmission apparatus includes an instrument including a first case, a power reception coil arranged to generate an induced current due to magnetic flux in a first direction intersecting a gravitational direction, and a holder configured to hold the power reception coil at a predetermined distance from an outer surface of the first case in the first case. A power transmission device includes a conductive second case that has an opening into which the instrument is inserted in which the instrument is stored, a power transmission coil provided in the second case so as to generate magnetic flux in the first direction, and disposed to generate an induced current in the power reception coil, and an elastic body that is provided in the second case, maintains a distance between the power transmission coil and the power reception coil to be constant, and supports the power transmission coil.