Abstract: A wearable glucose monitor may include a compact having an antenna positioned on a housing of the glucose monitor to allow the size of the antenna to be larger than a printed circuit board of the glucose monitor positioned internal to the housing. The antenna may be communicatively coupled to a wireless communication device, such as a transceiver on the PCB, to transmit glucose level measurements to an external device through low-frequency radio signals. In some aspects, the antenna may be configured to be distributed into multiple sections positioned on different sections of the housing and connected to form a complete antenna.

Abstract: Photoplethysmogram system and method are designed for monitoring a user's physiological signals. The system includes a PPG device with a light source, a PPG sensor, and at least one verification sensor. The PPG sensor collects light reflected from a user's fingertip after being emitted by the light source, while the verification sensor determines the position of the fingertip and measures the contact pressure of the PPG device to the user's fingertip. Additionally, the system includes an analysis module that is electrically connected to the PPG device, which is responsible for analyzing and processing a plurality of collected data from the device. There is also a display module that is electrically connected to the analysis module, providing a feedback on the PPG device's performance. The analysis module dynamically adjusts the intensity and sampling rate of light emitted by the light source based on the measured contact pressure.

Abstract: According to an aspect, a display device includes a display module including a display panel and a conductive layer, and an enclosure configured to surround the display module, where the enclosure includes a conductive portion. The display device includes an antenna having a structure formed by an air gap disposed between the conductive layer and the conductive portion of the enclosure. The antenna includes an antenna feed located within the air gap. The antenna feed is coupled to the conductive portion of the enclosure and to the conductive layer such that at least a portion of the display module is configured as a radiating element for wireless communication.

Abstract: According to an aspect, a computing device includes a first enclosure, a second enclosure, a hinge coupled to the first enclosure and the second enclosure, and a hinge-based antenna defined by a slot of the hinge and a portion of an air gap disposed between the first enclosure and the second enclosure, where the slot of the hinge is aligned with the portion of the air gap, and the hinge-based antenna includes an antenna feed element disposed within the slot of the hinge and configured to excite the portion of the air gap.

Abstract: A wearable glucose monitor may include a compact having an antenna positioned on a housing of the glucose monitor to allow the size of the antenna to be larger than a printed circuit board of the glucose monitor positioned internal to the housing. The antenna may be communicatively coupled to a wireless communication device, such as a transceiver on the PCB, to transmit glucose level measurements to an external device through low-frequency radio signals. In some aspects, the antenna may be configured to be distributed into multiple sections positioned on different sections of the housing and connected to form a complete antenna.

Abstract: Systems and methods for monitoring sleep using a sleep monitoring system includes a first component and a second component. The first component is configured to be coupled to a chest of the subject and the second component is configured to be concurrently coupled to an abdomen of the subject. Each component includes a housing, a pair of electrode pads mounted on an underside of the respective housing, and an ECG sensor circuit communicatively coupled to the respective pair of electrode pads. The first component further includes a photoplethysmogram sensor that includes at least one light source and at least one photodetector mounted on the underside of the housing of the first component at a location between the first pair of electrode pads.

Abstract: An ophthalmic device includes an enclosure, an antenna, a sensor system, and a first conductive trace. The ophthalmic device is configured to mount on or in an eye of a user and includes a central region surrounded by a peripheral region. The antenna is disposed within the peripheral region between an outer edge of the ophthalmic device and the central region. The sensor system includes a sensor trace disposed within the peripheral region between the antenna and the central region. The first conductive trace is at least partially disposed between at least one of the antenna and the sensor trace or the central region and the sensor trace.

Abstract: Techniques and mechanisms for sensing an overlap of an ophthalmic device by an eyelid of a user while the ophthalmic device is disposed in or on an eye of the user. In an embodiment, a circuit, disposed in a sealed enclosure of the ophthalmic device, interacts via an electromagnetic field with a film of tear fluid that is formed on the ophthalmic device. Based on the electromagnetic interaction, an oscillation characteristic of the circuit is evaluated. The oscillation characteristic varies with a resistance that is due in part to an eyelid of the user overlapping at least some portion of the ophthalmic device. Based on the evaluated oscillation characteristic, an amount of the eyelid overlap is determined by circuitry of the ophthalmic device. In another embodiment, the amount of eyelid overlap is used to determine one or more characteristics of gazing by the user's eye.

Abstract: A wearable glucose monitor may include a compact having an antenna positioned on a housing of the glucose monitor to allow the size of the antenna to be larger than a printed circuit board of the glucose monitor positioned internal to the housing. The antenna may be communicatively coupled to a wireless communication device, such as a transceiver on the PCB, to transmit glucose level measurements to an external device through low-frequency radio signals. In some aspects, the antenna may be configured to be distributed into multiple sections positioned on different sections of the housing and connected to form a complete antenna.

Abstract: Disclosed herein are techniques for improving the radiation efficiency and coverage range of antennas in wireless devices. According to some embodiments, an antenna includes an antenna feed and a radiator, where signals to be transmitted by the antenna are coupled from the antenna feed to the radiator through distributed and coherent coupling, such that the radiations by the antenna feed and the radiator constructively interfere in a far field to achieve a higher radiation efficiency and an increased coverage range, without increasing the power consumption of the antenna.

Abstract: According to an aspect, a display device includes a display module including a display panel and a conductive layer, and an enclosure configured to surround the display module, where the enclosure includes a conductive portion. The display device includes an antenna having a structure formed by an air gap disposed between the conductive layer and the conductive portion of the enclosure. The antenna includes an antenna feed located within the air gap. The antenna feed is coupled to the conductive portion of the enclosure and to the conductive layer such that at least a portion of the display module is configured as a radiating element for wireless communication.

Abstract: A wearable glucose monitor may include a compact having an antenna positioned on a housing of the glucose monitor to allow the size of the antenna to be larger than a printed circuit board of the glucose monitor positioned internal to the housing. The antenna may be communicatively coupled to a wireless communication device, such as a transceiver on the PCB, to transmit glucose level measurements to an external device through low-frequency radio signals. In some aspects, the antenna may be configured to be distributed into multiple sections positioned on different sections of the housing and connected to form a complete antenna.

Abstract: Disclosed herein are techniques for improving the radiation efficiency and coverage range of antennas in wireless devices. According to some embodiments, an antenna includes an antenna feed and a radiator, where signals to be transmitted by the antenna are coupled from the antenna feed to the radiator through distributed and coherent coupling, such that the radiations by the antenna feed and the radiator constructively interfere in a far field to achieve a higher radiation efficiency and an increased coverage range, without increasing the power consumption of the antenna.

Abstract: Techniques and mechanisms for sensing an overlap of an ophthalmic device by an eyelid of a user while the ophthalmic device is disposed in or on an eye of the user. In an embodiment, a circuit, disposed in a sealed enclosure of the ophthalmic device, interacts via an electromagnetic field with a film of tear fluid that is formed on the ophthalmic device. Based on the electromagnetic interaction, an oscillation characteristic of the circuit is evaluated. The oscillation characteristic varies with a resistance that is due in part to an eyelid of the user overlapping at least some portion of the ophthalmic device. Based on the evaluated oscillation characteristic, an amount of the eyelid overlap is determined by circuitry of the ophthalmic device. In another embodiment, the amount of eyelid overlap is used to determine one or more characteristics of gazing by the user's eye.

Abstract: Techniques and mechanisms for sensing an overlap of an ophthalmic device by an eyelid of a user while the ophthalmic device is disposed in or on an eye of the user. In an embodiment, a circuit, disposed in a sealed enclosure of the ophthalmic device, interacts via an electromagnetic field with a film of tear fluid that is formed on the ophthalmic device. Based on the electromagnetic interaction, an oscillation characteristic of the circuit is evaluated. The oscillation characteristic varies with a resistance that is due in part to an eyelid of the user overlapping at least some portion of the ophthalmic device. Based on the evaluated oscillation characteristic, an amount of the eyelid overlap is determined by circuitry of the ophthalmic device. In another embodiment, the amount of eyelid overlap is used to determine one or more characteristics of gazing by the user's eye.

Abstract: A multi-antenna device may include a high-frequency antenna, a low-frequency antenna, and a patterned metal ground plane defining channels having capacitors operable a short circuit for the high-frequency antenna and an open-circuit for the low-frequency antenna. The high-frequency antenna, the low-frequency antenna, and the patterned metal ground plane may be coupled to a multi-layer printed circuit board of the multi-antenna device. The channels of the metal ground plane conductor may have dimensions to, themselves, operate as the capacitors. In other aspects, discrete capacitors may be positioned on the metal ground plane proximate to the channels to reduce eddy currents during operation of the low-frequency antenna.

Abstract: An ophthalmic device includes an enclosure, an antenna, a sensor system, and a first conductive trace. The ophthalmic device is configured to mount on or in an eye of a user and includes a central region surrounded by a peripheral region. The antenna is disposed within the peripheral region between an outer edge of the ophthalmic device and the central region. The sensor system includes a sensor trace disposed within the peripheral region between the antenna and the central region. The first conductive trace is at least partially disposed between at least one of the antenna and the sensor trace or the central region and the sensor trace.

Abstract: A semiconductor package according to some examples of the disclosure may include a first body layer, a transformer that may comprise one or more inductors, coupled inductors, or inductive elements positioned above the first body layer. A first ground plane is on a top of the first body layer between the first body layer and the inductive element. The first ground plane may have conductive lines generally perpendicular to a magnetic field generated by the inductive element, and a second ground plane on a bottom of the first body layer opposite the first ground plane. The first and second ground planes may also provide heat dissipation elements for the semiconductor as well as reduce or eliminate eddy current and parasitic effects produced by the inductive element.

Abstract: A multi-antenna device may include a high-frequency antenna, a low-frequency antenna, and a patterned metal ground plane defining channels having capacitors operable a short circuit for the high-frequency antenna and an open-circuit for the low-frequency antenna. The high-frequency antenna, the low-frequency antenna, and the patterned metal ground plane may be coupled to a multi-layer printed circuit board of the multi-antenna device. The channels of the metal ground plane conductor may have dimensions to, themselves, operate as the capacitors. In other aspects, discrete capacitors may be positioned on the metal ground plane proximate to the channels to reduce eddy currents during operation of the low-frequency antenna.

Abstract: A wearable glucose monitor may include a compact having an antenna positioned on a housing of the glucose monitor to allow the size of the antenna to be larger than a printed circuit board of the glucose monitor positioned internal to the housing. The antenna may be communicatively coupled to a wireless communication device, such as a transceiver on the PCB, to transmit glucose level measurements to an external device through low-frequency radio signals. In some aspects, the antenna may be configured to be distributed into multiple sections positioned on different sections of the housing and connected to form a complete antenna.