Abstract:
A metal chassis for a mobile device is configured to transmit a signal of a wavelength. A first side of the chassis faces the inside of the mobile device and includes a first aperture that has a dimension that comprises a first subwavelength width of a slot in the chassis. A second side of the chassis faces free space and includes a second aperture that has a dimension that comprises a second subwavelength width of the slot in the chassis. A channel connects the first aperture and the second aperture. The slot has a length dimension and the channel may be centered along the length dimension. The channel is configured to support a transverse electromagnetic mode for propagation of the signal from the first aperture through the channel to the second aperture. As a part of a mobile device the chassis acts as a secondary radiator for the mobile device.
Abstract:
A display having an integrated antenna with a substantially uniform transparency and/or light across the display. The display may have a uniformity layer that is an optical balance of the antenna, wherein the uniformity layer and the antenna have respective optical transparencies that provide a substantially uniform transparency across the display. The display may also have a backlight that has a surface brightness intensity corresponding to an optical inverse of the antenna, and is configured to provide a substantially uniform light across the display.
Abstract:
A technology is described for determining a position of a HBC (Human Body Channel) sensor. An example method may include receiving signal data for a radio signal from a first transmitting HBC sensor transmitted over a human body channel. A signal loss of the radio signal can be calculated using the signal data received from the first transmitting HBC sensor, where the signal loss may be a function of distance of the first transmitting HBC sensor from a receiver. A distance of the first transmitting HBC sensor from the receiver can then be determined based in part on the signal loss and a relative position of the first transmitting HBC sensor can be identified based in part on the distance between the first transmitting HBC sensor and the receiver.
Abstract:
Described herein are architectures, platforms and methods for dynamic re-distribution of magnetic fields in a device during near field communication (NFC) related functions or transactions and/or wireless charging.
Abstract:
Described herein are techniques related one or more systems, apparatuses, methods, etc. for reducing induced currents in a apparatus chassis. For example, a fractal slot is constructed in the apparatus chassis to reduce the induced currents, and enhance passage of magnetic fields through the apparatus chassis. In this example, the fractal slot may include a no-self loop fractal space filling curve shape to provide high impedance to the induced currents.
Abstract:
Described herein are architectures, platforms and methods for enhancing range and increasing data rates during near field communication (NFC) related functions or transactions.
Abstract:
This document discloses one or more systems, apparatuses, methods, etc. for integrating coil antennas in a carbon fiber chassis portable device. More particularly, the carbon fiber chassis portable device containing unidirectional weave carbon fibers in its chassis—to support near field communications (NFC) related functions—is described.
Abstract:
Described herein are techniques related one or more systems, apparatuses, methods, etc. for reducing induced currents in a apparatus chassis. For example, a fractal slot is constructed in the apparatus chassis to reduce the induced currents, and enhance passage of magnetic fields through the apparatus chassis. In this example, the fractal slot may include a no-self loop fractal space filling curve shape to provide high impedance to the induced currents.
Abstract:
The disclosure relates to a method, apparatus and system for power transmission unit (PTU) having a sensing unit. The sensing unit may be integrated with the PTU to determine when a power receiving unit (PRU) is proximal and awaken the PTU's charging coil. When a PRU is not present, the PTU may be in Deep Sleep state to save power.
Abstract:
A garment includes a passive human body communication (HBC) component that includes, for example, a storage element. The garment has conductive cuffs and a flexible conductive trace connecting the cuffs to the HBC component. When a user wearing the garment touches the electrodes of an HBC interface on an external host device, the host device powers the HBC component and may send or receive data from the HBC component. The power and the data travel over the user's body from the interface electrodes to the cuffs, and at least partially through the conductive trace from the cuffs to the HBC component.