Abstract: A system including a plurality of transmitters configured to transmit a wireless signal for supplying power and an information processing apparatus configured to supply electric power for that transmission, wherein the plurality of transmitters are electrically connected in series with the apparatus in a daisy-chain connection, wherein at least one transmitter among the plurality includes a measuring means to measure at least one of a supply voltage and a supply current associated with the supplied electric power, wherein at least one of (i) a transmitter among the plurality of the transmitters or (ii) the information processing apparatus includes a determining means to determine whether at least one measured value satisfies a predetermined requirement.

Abstract: A multi-antenna includes a substrate, a first antenna element including two linear antennas extending in two different directions from a first feeding point, and a second antenna element including two linear antennas extending in two different directions from a second feeding point, the first antenna element and the second antenna element being arranged to surround one region of the substrate, and a connection line configured to connect, through the one region, the first feeding point of the first antenna element and the second feeding point of the second antenna element. The connection line is connected to the first feeding point of the first antenna element so as not to extend along a bisector of an interior angle formed by the two linear antennas with the first feeding point of the first antenna element as an apex.

Abstract: A wireless power supply system includes a plurality of transmitters, a plurality of receivers, and a control device configured to control the plurality of transmitters. The plurality of transmitters are configured to wirelessly supply power to the plurality of receivers. The control device is configured to control the plurality of transmitters not to transmit radio waves over a second period for each first period. The control device is configured to execute carrier sense control in a space where the plurality of transmitters and the plurality of receivers are arranged, during the second period.

Abstract: A non-transitory computer-readable storage medium storing a program for causing a computer to execute processing including acquiring information regarding one or more transmitters configured to be placed in a predetermined space and configured to transmit a power-supply signal by radiating radio waves, and acquiring information regarding a power-transfer efficiency in the space, calculating, based on the information regarding the one or more transmitters and the information regarding the power-transfer efficiency, power intensity generated at one or more receivers configured to receive the power-supply signal at a plurality of positions in the space, and presenting a distribution of the calculated power intensity.

Abstract: A wireless power-supply device is configured to realize a variety of radiation patterns. The wireless power-supply device includes; a meta-surface including a plurality of waveguide patches and a plurality of switches arranged in association with the plurality of waveguide patches; a control device for controlling a state of power supply to the plurality of switches; and an antenna for emitting electromagnetic waves for transmitting power. The wireless power-supply device is configured to change a relation of connection of the plurality of waveguide patches by turning on or off the plurality of switches, so as to change a radiation pattern of electromagnetic waves radiated from the antenna.

Abstract: A system includes a transmitter, and one or more receivers. The transmitter is configured to execute a step of transmitting a power supply signal, a step of receiving, from the receiver, a data signal comprising identification information of the receiver, and a step of registering the receiver, based on the received data signal. Unique identification information is assigned to the receiver. The receiver is configured to execute a step of transmitting the data signal comprising the identification information, in a case where an amount of power stored in a power storage unit by the power supply signal transmitted from the transmitter reaches a predetermined value.

Abstract: A multi-antenna includes a substrate, and a first antenna element including two linear antennas arranged to surround one region of the substrate and extending in two different directions from a first feeding point, and a second antenna element including two linear antennas arranged to surround the one region of the substrate and extending in two different directions from a second feeding point, and a connecting line connecting the first feeding point of the first antenna element and the second feeding point of the second antenna element.

Abstract: A transmitter includes a housing having a longitudinal direction and a lateral direction, a width of the housing in the lateral direction being substantially the same as a width of a duct rail, an attachment portion for attaching the housing to the duct rail, and at which an extension direction of the duct rail substantially coincides with the longitudinal direction, and an antenna element housed in the housing.

Abstract: A power receiving antenna is provided, which is capable of efficiently receiving electric power from a distant power transmitting device, and allows a change of its size within a certain range. A power receiving antenna used for wireless power feeding includes: a first conductive plate; a second conductive plate that faces the first conductive plate; a feeder connecting a first end portion of the first conductive plate and a second end portion of the second conductive plate facing the first end portion; and a conductive member connecting a first other end portion opposite to the first end portion and a second other end portion opposite to the second end portion.

Abstract: A power-receiving device including: a power-receiving antenna for receiving electromagnetic waves; a rectifier functionally connected to the power-receiving antenna, for converting the electromagnetic waves into DC voltages; a first power storage device functionally connected to the rectifier, for storing the DC voltages therein; a second power storage device functionally connected to the first power storage device, for storing the DC voltages therein; a device functionally connected to the second power storage device; a first switch for controlling distribution of electric power between the rectifier and the first power storage device; a second switch for controlling distribution of electric power between the first power storage device and the second power storage device; a third switch for controlling distribution of electric power between the first power storage device and the device; a fourth switch for controlling distribution of electric power between the second power storage device and the device; and

Abstract: A wireless system comprises base wireless devices; remote wireless devices that communicate wirelessly with the base wireless devices; sensors that wirelessly transmit signals to the remote wireless devices; and wireless power-supplying devices that supply power wirelessly to at least the sensors.

Abstract: A device housing is provided for wirelessly receiving electric power in order to supply electric power to a device with an excellent power-receiving efficiency, while suppressing an increase in its size as a whole. Also, a device having the same device housing and a device housing for constituting a main body of a device which is a sensor or an actuator are provided. The device housing is provided with a power-receiving device for mainly generating an electric field or a magnetic field for performing wireless power supply. The power-receiving device includes at least one of a dipole antenna, a slot antenna, a monopole antenna, a chip antenna and an inverted-F antenna. The device housing has a size in a three-dimensional space, and expansion of its size in the three-dimensional space due to the provision of the power-receiving devices is substantially limited to one axis direction (X-axis direction) at most.

Abstract: An information processing system includes one or more transmitters respectively transmitting first signals, a plurality of sensor devices respectively receiving first signals, disposed at different positions, and measuring predetermined physical quantities, and an information processing device acquiring from the plurality of sensor devices, respectively, the physical quantities measured by the plurality of sensor devices and second signals corresponding to the first signals transmitted from the transmitters, in which the information processing device includes a storage unit that stores first correspondence information obtained by associating respective positions where the transmitters are disposed, first signals respectively the transmitted transmitters, and the second signals respectively corresponding to the first signals, and an estimation unit that specifies, among the transmitters, the transmitter that transmits the first signal corresponding to the second signal transmitted from the sensor device based