Abstract: Systems and methods for wireless power transmission based on object identification are provided. A radio frequency wireless power transmitter is in communication with a video camera for capturing image data (e.g., a visual pattern) of at least a portion of a transmission field of the radio frequency wireless power transmitter. A processor of the radio frequency wireless power transmitter is configured to identify an object when the visual pattern matches a pre-stored visual pattern representing the object, and control transmission of one or more radio frequency power transmission waves to a receiving electronic device based on a location of the identified object, wherein the receiving electronic device uses the one or more radio frequency power transmission waves to power or to charge the receiving electronic device.

Abstract: Embodiments of the present technology may include a method for monitoring a physiological parameter in a person, the method including transmitting radio waves below the skin surface of a person and across a range of radio frequencies. Embodiments may also include receiving radio waves on a two-dimensional array of receive antennas, the received radio waves including a reflected portion of the transmitted radio waves across the range of radio frequencies. Embodiments may also include generating data that corresponds to the received radio waves. Embodiments may also include coherently combining the generated data across the two-dimensional array of receive antennas and across the range of radio frequencies to produce a pulse wave signal of the person.

Abstract: Finger wearable devices for health monitoring and methods for producing such devices are disclosed. A device includes an outer circular piece having two opposing ends, an inner circular piece having two opposing ends, sensor electronics including a PCB and electronic components, the sensor electronics encapsulated in a cavity between the outer and inner circular pieces, the outer circular piece and the inner circular piece include attachment features that are complementary to each other and configured to enable the outer circular piece and the inner circular piece to mate together at the attachment features such that the outer circular piece and the inner circular piece are held together by the attachment features and such that the outer circular piece and the inner circular piece create the cavity within which the sensor electronics are encapsulated, and an encapsulant in the cavity between the outer circular piece and the inner circular piece.

Abstract: An example wireless-power receiver comprises one or more processors configured to perform operations, including receiving, via one or more antenna elements of an antenna array, a plurality of first electromagnetic (EM) signals. Each antenna element of the one or more antenna elements of the antenna array has a respective polarization. The one or more processors are further configured to perform operations including, in response to a change in an orientation of the wireless-power receiver, changing the respective polarization to a changed polarization for the one or more antenna elements of the antenna array, and receiving, via the one or more antenna elements of the antenna array, and while the one or more antenna elements have the changed polarization, a plurality of second EM signals.

Abstract: A wearable device is disclosed. The wearable device includes a housing, an attachment device configured to attach the housing to a person, at least one transmit antenna configured to transmit millimeter range radio waves over a 3D space below the skin surface of the person, multiple receive antennas configured to receive radio waves, the received radio waves including a reflected portion of the transmitted radio waves, and a processor configured to isolate a signal from a particular location in the 3D space in response to receiving the radio waves on the multiple receive antennas and outputting a signal that corresponds to a health parameter of the person in response to the isolated signal.

Abstract: A device for monitoring a health parameter of a person is disclosed. The device includes a semiconductor substrate including at least one transmit component and multiple receive components, at least one transmit antenna configured to transmit millimeter range radio waves over a 3D space below the skin surface of a person, and multiple receive antennas configured to receive radio waves, the received radio waves including a reflected portion of the transmitted radio waves, wherein the semiconductor substrate includes circuits for processing signals received on the multiple receive antennas, wherein the semiconductor substrate includes at least one output configured to output a signal that corresponds to a health parameter of a person in response to received radio waves, and wherein the at least one transmit antenna is collocated with the at least one transmit component and the multiple receive antennas are collocated with respective ones of the multiple receive components.

Abstract: A system for monitoring a health parameter in a person is disclosed. The system includes at least one transmit antenna configured to transmit millimeter range radio waves over a 3D space below the skin surface of a person, multiple receive antennas configured to receive radio waves, the received radio waves including a reflected portion of the transmitted radio waves, and means for isolating a signal from a particular location in the 3D space in response to receiving the radio waves on the multiple receive antennas and outputting a signal that corresponds to a health parameter of the person in response to the isolated signal.

Abstract: A method for monitoring a blood glucose level in a person involves transmitting millimeter range radio waves over a three-dimensional (3D) space below the skin surface of a person. receiving radio waves on multiple receive antennas, the received radio waves including a reflected portion of the transmitted radio waves, isolating a signal from a particular location in the 3D space in response to receiving the radio waves on the multiple receive antennas, and outputting a signal that corresponds to a blood glucose level in the person in response to the isolated signal.

Abstract: An example apparatus disclosed herein includes a controller; one or more receiving circuits coupled to the controller, each receiving circuit configured to receive incoming RF signals from a receiver, the receiver transmitting a communication signal that identifies a location of the receiver; a plurality of transmitting circuits coupled to the controller, each transmitting circuit configured to generate outgoing RF signals based upon the incoming RF signals; and a plurality of antenna elements, the plurality of antenna elements including at least some dedicated antenna elements. In some embodiments, the controller is configured to: (i) select a first configuration of at least some of the dedicated antenna elements to be coupled to the receiving circuits, and (ii) select, based on the location, a second configuration of at least some of the plurality of antenna elements to be coupled to the plurality of transmitting circuits to transmit the outgoing RF signals.

Abstract: A method for operating a stepped frequency radar system is disclosed. The method involves receiving digital frequency control signals that correspond to different frequencies of radio frequency (RF) signals, and performing stepped frequency scanning across a frequency range using at least one transmit antenna and a two-dimensional array of receive antennas and RF signals at the different frequencies that correspond to the digital frequency control signals.

Abstract: Embodiments disclosed herein may generate and transmit power waves that, as result of their physical waveform characteristics (e.g., frequency, amplitude, phase, gain, direction), converge at a predetermined location in a transmission field to generate a pocket of energy. Receivers associated with an electronic device being powered by the wireless charging system, may extract energy from these pockets of energy and then convert that energy into usable electric power for the electronic device associated with a receiver. The pockets of energy may manifest as a three-dimensional field (e.g., transmission field) where energy may be harvested by a receiver positioned within or nearby the pocket of energy.

Abstract: A method for operating a stepped frequency radar system is disclosed. The method involves receiving digital frequency control signals that correspond to different frequencies of radio frequency (RF) signals, and performing stepped frequency scanning across a frequency range using at least one transmit antenna and a two-dimensional array of receive antennas and RF signals at the different frequencies that correspond to the digital frequency control signals.

Abstract: Embodiments of the present technology may include a system for monitoring a physiological parameter in a person, the system including a frequency synthesizer configured to generate radio waves across a range of radio frequencies. Embodiments may also include at least one transmit antenna configured to transmit the radio waves below the skin surface of a person. Embodiments may also include a two-dimensional array of receive antennas configured to receive radio waves, the received radio waves including a reflected portion of the transmitted radio waves. Embodiments may also include processing circuits configured to generate data in response to the received radio waves and to coherently combine the generated data across the two-dimensional array of receive antennas and across the range of radio frequencies to produce a pulse wave signal of the person.

Abstract: Disclosed is a wireless power transmitter for wirelessly delivering power to a receiver device, the wireless power transmitter including: a plurality of unit cells configured to radiate one or more radio frequency (RF) power transmission waves, each unit cell in the plurality of unit cells including: (i) a metal portion having an interior perimeter that surrounds an aperture defined by the metal portion; and (ii) an antenna that is aligned with the aperture in a first dimension, the antenna being configured to radiate one or more RF power transmission waves for wirelessly charging a receiver device. The one or more RF power transmission waves leak from the wireless power transmitter at least in part through the aperture when the receiver device is positioned within a threshold distance from the unit cell.

Abstract: Embodiments of the present technology may include a method for monitoring a physiological parameter in a person using a radar system, the method including generating a pulse wave signal from stepped frequency scanning data that corresponds to radio waves that have reflected from features below the skin of the person. In some embodiments, the stepped frequency scanning data is collected through stepped frequency scanning with a two-dimensional array of receive antennas over a range of stepped frequencies using frequency steps of a step size. Embodiments may also include changing a parameter of the stepped frequency scanning in response to the pulse wave signal. Embodiments may also include generating the pulse wave signal from stepped frequency scanning data using the changed parameter.

Abstract: A finger wearable health monitoring device is disclosed. In an embodiment, a finger wearable health monitoring device includes a circular metal shell, the circular metal shell comprising a strip of metal that includes an outer surface and an inner surface and two opposing ends, sensor electronics adjacent the inner surface of the circular metal shell, and encapsulant formed over the sensor electronics and on the inner surface of the circular metal shell, and the sensor electronics includes a flexible portion of a circuit board that is opposite the two opposing ends of the circular metal shell.

Abstract: Methods and systems for monitoring blood pressure in a person are disclosed. A method for monitoring a blood pressure in a person involves transmitting millimeter range radio waves over a three-dimensional (3D) space below the skin surface of a person, receiving radio waves on multiple receive antennas, the received radio waves including a reflected portion of the transmitted radio waves that is reflected by blood in a blood vessel in the 3D space, isolating a signal that corresponds to the portion of the transmitted radio waves that is reflected by blood in the blood vessel in response to receiving the radio waves on the multiple receive antennas, and outputting a signal that corresponds to a blood pressure level in the person in response to the isolated signal.

Abstract: Systems and methods for wireless power transmission based on object identification are provided. A radio frequency wireless power transmitter is in communication with a video camera for capturing image data (e.g., a visual pattern) of at least a portion of a transmission field of the radio frequency wireless power transmitter. A processor of the radio frequency wireless power transmitter is configured to identify an object when the visual pattern matches a pre-stored visual pattern representing the object, and control transmission of one or more radio frequency power transmission waves to a receiving electronic device based on a location of the identified object, wherein the receiving electronic device uses the one or more radio frequency power transmission waves to power or to charge the receiving electronic device.

Abstract: Embodiments of the present technology may include a method for generating training data for use in monitoring a health parameter of a person, the method including receiving a pulse wave signal that is generated from radio frequency scanning data that corresponds to radio waves that have reflected from below the skin surface of a person. In some embodiments, the radio frequency scanning data is collected through a two-dimensional array of receive antennas over a range of radio frequencies. Embodiments may also include extracting features from at least one of the pulse wave signal and a mathematical model generated in response to the pulse wave signal. Embodiments may also include labeling the extracted features with a corresponding blood pressure to generate training data.

Abstract: A method for generating training data for use in monitoring blood pressure of a person is disclosed. In an embodiment, the method involves receiving velocity data that is generated from electromagnetic energy that has reflected from below the skin surface of a person, labeling the velocity data with magnitudes of blood pressure that are measured from the person to generate first training data, receiving pulse wave data that is generated from electromagnetic energy that has reflected from below the skin surface of the person, labeling the pulse wave data with magnitudes of blood pressure that are measured from the person to generate second training data, and combining the first training data with the second training data to produce a training data set.