A signal emitting apparatus provided in a vehicle to which power is transferred from a ground side power supplying apparatus by noncontact, includes: a signal emitting device for emitting a signal including information relating to the vehicle wirelessly toward the ground side power supplying apparatus; an outside environment acquiring part for acquiring information relating to an outside environment at surroundings of the ground side power supplying apparatus; and a control part for controlling the signal emitting device. The control part changes a mode of wireless signal emission of the signal emitting device in accordance with the outside environment.

A signal emitting apparatus provided in a vehicle to which power is transferred from a ground side power supplying apparatus by noncontact, includes: a signal emitting device for emitting a signal including information relating to the vehicle wirelessly toward the ground side power supplying apparatus; an outside environment acquiring part for acquiring information relating to an outside environment at surroundings of the ground side power supplying apparatus; and a control part for controlling the signal emitting device. The control part changes a mode of wireless signal emission of the signal emitting device in accordance with the outside environment.

A smart window configured to transition between a substantially transparent state and a dimmed state. The smart window includes a first substantially transparent conductive layer; an ion storage layer on the first substantially transparent conductive layer; an electrolyte layer on a side of the ion storage layer away from the first substantially transparent conductive layer; an electrochromic layer on a side of the electrolyte layer away from the ion storage layer; a second substantially transparent conductive layer on a side of the electrochromic layer away from the electrolyte layer; and an antenna layer configured to receive wireless power transmissions to provide energy for the smart window to transition between the substantially transparent state and the dimmed state. An orthographic projection of the electrochromic layer on the first substantially transparent conductive layer substantially covers an orthographic projection of the antenna layer on the first substantially transparent conductive layer.

A smart window configured to transition between a substantially transparent state and a dimmed state. The smart window includes a first substantially transparent conductive layer; an ion storage layer on the first substantially transparent conductive layer; an electrolyte layer on a side of the ion storage layer away from the first substantially transparent conductive layer; an electrochromic layer on a side of the electrolyte layer away from the ion storage layer; a second substantially transparent conductive layer on a side of the electrochromic layer away from the electrolyte layer; and an antenna layer configured to receive wireless power transmissions to provide energy for the smart window to transition between the substantially transparent state and the dimmed state. An orthographic projection of the electrochromic layer on the first substantially transparent conductive layer substantially covers an orthographic projection of the antenna layer on the first substantially transparent conductive layer.

Wirelessly powered implantable pulse generators (IPG) are described. In an embodiment, a wirelessly powered stimulator, includes an implantable pulse generator (IPG), including: an Rx antenna that receives a radio frequency (RF) signal from an external Tx antenna; a rectifier; an energy storage capacitor C.sub.STOR, where the RF signal coupled to the Rx antenna is rectified by the rectifier to generate VDD and charges the C.sub.STOR; a demodulator; an output voltage regulator that generates a stable voltage to activate the demodulator; and where the demodulator outputs a stimulation that releases the energy stored in the C.sub.STOR on an electrode based on detecting amplitude modulation in the received RF signal; and a Tx antenna that generates the RF signal that wirelessly powers the IPG and that controls timing of output stimulations of the IPG, where amplitude modulation is applied to the RF signal to control the timing of the output stimulations.

Wirelessly powered implantable pulse generators (IPG) are described. In an embodiment, a wirelessly powered stimulator, includes an implantable pulse generator (IPG), including: an Rx antenna that receives a radio frequency (RF) signal from an external Tx antenna; a rectifier; an energy storage capacitor C.sub.STOR, where the RF signal coupled to the Rx antenna is rectified by the rectifier to generate VDD and charges the C.sub.STOR; a demodulator; an output voltage regulator that generates a stable voltage to activate the demodulator; and where the demodulator outputs a stimulation that releases the energy stored in the C.sub.STOR on an electrode based on detecting amplitude modulation in the received RF signal; and a Tx antenna that generates the RF signal that wirelessly powers the IPG and that controls timing of output stimulations of the IPG, where amplitude modulation is applied to the RF signal to control the timing of the output stimulations.

A system for energy transmission and reception from near-field electromagnetic waves, the system including a transmitting subsystem and a receiving subsystem, said transmitting and receiving subsystems being configured to, respectively, transmit and receive energy from near-field electromagnetic waves. A method for transmitting and receiving energy from near-field electromagnetic waves by a system for transmitting and receiving energy from near-field electromagnetic waves.

A wireless power supply system may comprise a wireless power transmitting circuit configured to transmit radio-frequency (RF) signals, and a wireless power receiving circuit configured to convert power from the RF signals into a direct-current (DC) output voltage stored in an energy storage element. The wireless power transmitting circuit may be electrically or magnetically coupled to an antenna and/or electrical wiring of a building for transmitting the RF signals. The wireless power transmitting circuit may be housed in an enclosure that is affixed in a relative location with respect to the wireless power receiving circuit. The antenna may comprise two antenna wires that extend from the enclosure. The wireless power receiving circuit may be electrically or magnetically coupled to an antenna for receiving the RF signals. The wireless power receiving circuit may comprise an RF-to-DC converter circuit for converting the power from the RF signals into a DC output voltage.

A wireless power supply system may comprise a wireless power transmitting circuit configured to transmit radio-frequency (RF) signals, and a wireless power receiving circuit configured to convert power from the RF signals into a direct-current (DC) output voltage stored in an energy storage element. The wireless power transmitting circuit may be electrically or magnetically coupled to an antenna and/or electrical wiring of a building for transmitting the RF signals. The wireless power transmitting circuit may be housed in an enclosure that is affixed in a relative location with respect to the wireless power receiving circuit. The antenna may comprise two antenna wires that extend from the enclosure. The wireless power receiving circuit may be electrically or magnetically coupled to an antenna for receiving the RF signals. The wireless power receiving circuit may comprise an RF-to-DC converter circuit for converting the power from the RF signals into a DC output voltage.

The wireless power transmission is a system for providing wireless charging and/or primary power to electronic/electrical devices via microwave energy. The microwave energy is focused to a location by a power transmitter having one or more adaptively-phased microwave array emitters. Rectennas within the device to be charged receive and rectify the microwave energy and use it for battery charging and/or for primary power.