A power transmitter (101) comprises a driver (201) generating a drive signal for a transmitter coil to generate a power transfer signal during a power transfer time interval and an electromagnetic test signal during a foreign object detection time interval. A set of balanced detection coils (207, 209) comprise two detection coils arranged such that signals induced in the two detection coils by an electromagnetic field generated by the transmitter coil compensate each other. A foreign object detector (205) is coupled to the detection coils and performs foreign object detection during the foreign object detection time interval. The foreign object detector (205) is arranged to detect a foreign object in response to a property of a signal from the detection coils meeting a foreign object detection criterion. A transformer (1101) has a primary winding and a secondary winding coupled in series with the set of balanced detection coils A compensation circuit (1103) is coupled to the primary winding and arranged to generate a compensation drive signal for the primary winding which offsets a combined voltage of the set of detection coils.

A tissue marking system includes a tissue marking beacon and a near-infrared (NIR) camera configured to detect emission of pulsatile NIR light from the tissue marking beacon. The tissue marking beacon is suitable for being injected into a tumor to mark a position and depth of the tumor for treatment. NIR light is emitted from a light-emitting diode (LED) positioned on the tissue marking beacon and is detected by the NIR camera. A pulsatile emission of NIR light from the LED is controlled to by synchronized with a data capture rate and/or detector exposure (shutter) of the NIR camera.

A tissue marking system includes a tissue marking beacon and a near-infrared (NIR) camera configured to detect emission of pulsatile NIR light from the tissue marking beacon. The tissue marking beacon is suitable for being injected into a tumor to mark a position and depth of the tumor for treatment. NIR light is emitted from a light-emitting diode (LED) positioned on the tissue marking beacon and is detected by the NIR camera. A pulsatile emission of NIR light from the LED is controlled to by synchronized with a data capture rate and/or detector exposure (shutter) of the NIR camera.

Systems and methods described herein include disparate textiles integrated with fixtures or objects within a workspace. The respective disparate textiles may be interconnected via electrical interconnection busses and may include electrical, mechanical, or electro-mechanical structures for sensing data associated with workspace users. The systems may provide, based on the sensed data, actuator output to one or more disparate textiles for personalizing or altering the workspace environment.

Systems and methods described herein include disparate textiles integrated with fixtures or objects within a workspace. The respective disparate textiles may be interconnected via electrical interconnection busses and may include electrical, mechanical, or electro-mechanical structures for sensing data associated with workspace users. The systems may provide, based on the sensed data, actuator output to one or more disparate textiles for personalizing or altering the workspace environment.

Discussed is a wireless charging device that changes a direction of a magnetic field generated by a transmission coil, through a repeater capable of rotating in a plane, and supports a user terminal in parallel with the repeater, to wirelessly transmit power in various directions and at various angles. The wireless charging device includes a power transmitting module including a plurality of transmission coils arranged side by side, therein, a terminal supporting module including a repeater therein and disposed at a slant with respect to an upper surface of the power transmitting module on the upper surface of the power transmitting module, a moving module to move the terminal supporting module along a direction in which the transmission coils are arranged, and a controller to supply a voltage to any one of the plurality of transmission coils depending on a position of the moving module.

Discussed is a wireless charging device that changes a direction of a magnetic field generated by a transmission coil, through a repeater capable of rotating in a plane, and supports a user terminal in parallel with the repeater, to wirelessly transmit power in various directions and at various angles. The wireless charging device includes a power transmitting module including a plurality of transmission coils arranged side by side, therein, a terminal supporting module including a repeater therein and disposed at a slant with respect to an upper surface of the power transmitting module on the upper surface of the power transmitting module, a moving module to move the terminal supporting module along a direction in which the transmission coils are arranged, and a controller to supply a voltage to any one of the plurality of transmission coils depending on a position of the moving module.

An electric toothbrush, in combination with a universal base for receiving and wirelessly charging the toothbrush, the base to be coupled with the electric toothbrush for wireless communication therebetween. The base comprises a magnetic element for forming a magnetic connection with the electric toothbrush when the latter is received by the base for charging. The base includes a charging component for inductively charging the electric toothbrush, a Bluetooth component for communicating usage data received from the toothbrush during a brushing session, an analyzing component for instantaneous processing of the usage data received from the toothbrush, a timer-clock component for displaying either a count-up or a countdown of the brushing session during the brushing session and time of day before and after the brushing session, and a multi-functional light component for instantaneously communicating, during the brushing session, at least one element of the usage data.

An electric toothbrush, in combination with a universal base for receiving and wirelessly charging the toothbrush, the base to be coupled with the electric toothbrush for wireless communication therebetween. The base comprises a magnetic element for forming a magnetic connection with the electric toothbrush when the latter is received by the base for charging. The base includes a charging component for inductively charging the electric toothbrush, a Bluetooth component for communicating usage data received from the toothbrush during a brushing session, an analyzing component for instantaneous processing of the usage data received from the toothbrush, a timer-clock component for displaying either a count-up or a countdown of the brushing session during the brushing session and time of day before and after the brushing session, and a multi-functional light component for instantaneously communicating, during the brushing session, at least one element of the usage data.

Disclosed is a system for recharging a selected power source wirelessly, such as through a power transmission. The power source may be positioned within a subject and be charged wirelessly through the subject, such as tissue of the subject. A thermal transfer system is provided to transfer or transport thermal energy from a first position to a second position, such as away from the subject.