Intel Corporation

Apple Inc.

Bin Xiao

Songnan Yang

Ulun Karacaoglu

Xintian Eddie Lin

Andreas Menkhoff

Joonhoi Hur

Harald Pretl

Bernhard Sogl

Jochen Schrattenecker

Andre Hanke

Rastislav Vazny

Anand S Konanur

Yan Chen

James Utz

Jie Gao

Chung-Hao Chen

Emily B Cooper

Lei Shao

Narjala Prakash Bhasker

Essam Elkhouly

Manish A Hiranandani

Lucas Calderin

An electronic device may include wireless circuitry with a transmit antenna that transmits signals and a receive antenna that receives reflected signals. The wireless circuitry may detect a range between the device and an external object based on the transmitted signals and the reflected signals. When the range exceeds a first threshold, the wireless circuitry may use the transmitted signals and received signals to record background noise. When the range is less than a second threshold value, the wireless circuitry may detect the range based on the reflected signals and the recorded background noise. This may allow the range to be accurately measured within an ultra-short range domain even when the device is placed in different device cases, placed on different surfaces, etc.

Background noise recorder

An electronic device may include a processor and wireless circuitry with transmit and receive antennas. Radar circuitry may use the transmit and receive antennas to perform spatial ranging on external objects farther than a threshold distance (e.g., 1-2 cm) from the transmit antenna. The wireless circuitry may include a voltage standing wave ration (VSWR) sensor coupled to the transmit antenna to detect the presence of objects within the threshold distance from the transmit antenna. This may serve to cover a blind spot for the radar circuitry near to the transmit antenna. The VSWR sensor may gather background VSWR measurements when other wireless performance metric data for the wireless circuitry is within a predetermined range of satisfactory values. The background VSWR measurements may be subtracted from real time VSWR measurements to perform accurate and robust ultra-short range object detection near to the transmit antenna.

Electronic devices with background-cancelled ultra short range object detection

Techniques for tuning in a wireless power transmitter in a system, method, and apparatus are described herein. For example, an apparatus may include a transmitter coil configured to generate a magnetic field. The apparatus may also include a set of capacitors in series with the transmitter coil, wherein a capacitance value for each of capacitors in the set is associated with a reactance shift.

Tuning in a wireless power transmitter

An apparatus is described. The apparatus includes a transmission coil and a power amplifier. The power amplifier includes a microcontroller and a memory. The memory includes instructions to determine electric current output of the power amplifier, perform a lookup of load reactance range based on target electric current, detect load impedance, calculate reactance based on the load impedance, determine if reactance is within the load reactance range, and adjust reactance shift compensation to bring the reactance within the load reactance range if the reactance is not within the load reactance range.

Adaptive impedance control for wireless charging

Described herein are techniques related to one or more systems, apparatuses, methods, etc. for implementing a wireless charging and a wireless connectivity combo in a device.

Wireless charging unit and coupler based docking combo for a wireless device

The disclosure generally relates to a method and apparatus for wireless charging station with adaptive radio interference detection and control. During wireless charging of a smart device, the harmonics associated with the magnetic resonance coupling between the power transmission unit (PTU) and the power receiving unit (PRU) may interfere with radio communication if PRU engages in radio messaging. The disclosed embodiments provide method and system for identifying interference and adapting the wireless charging power to reduce or eliminate interference while efficiently charging the PRU.

Wireless charging system with adaptive radio frequency interference

Described herein are techniques related to one or more systems, apparatuses, methods, etc. for implementing a wireless charging and a wireless connectivity in a device.

Integration of wireless charging unit in a wireless device

Described herein are techniques related to near field coupling and wireless power transfers. A portable device may include a coil antenna that includes an upper loop and a lower loop to form a figure-eight arrangement. The figure-eight coil antenna arrangement is wrapped against top and bottom surfaces of a component to establish near field coupling through front side, top side, bottom side, or corner side of the portable device. Further, a flux guide may be placed between the coil antenna and the component to facilitate magnetic flux at the upper loop and the lower loop to induce current of the same phase during receive mode. During transmit mode, the flux guide facilitates the magnetic flux at the upper loop and the lower loop to generate magnetic fields of the same direction.

Antenna configuration to facilitate near field coupling

Described herein are techniques related to one or more systems, apparatuses, methods, etc. for a wireless fidelity (Wi-Fi) based wireless docking station arrangement.

Antenna coupler for near field wireless docking

Techniques are disclosed involving coils that may be used to exchange wireless energy between devices. For instance, a device may include a coil having a plurality of turns arranged along an arc. Further, the coil may have first and second ends that are substantially normal to the arc. The coil may be arranged within a casing of the device. This casing may have first and second non-parallel surfaces. In embodiments, the first end of the coil may be directed to (be substantially parallel with and proximate to) the first surface, while the second end of the coil may be directed to the substantially parallel with and proximate to) the second surface. The coil may be employed in wireless power transfer and/or near field communication applications.

Coil techniques

Described herein are techniques related one or more systems, apparatuses, methods, etc. for a wireless fidelity (Wi-Fi) based wireless docking in an enterprise environment. In an implementation, a separate low radiating antenna is constructed and installed at a bottom surface of a wireless device and at a docking surface of a docking station. In this implementation, the low radiating antenna is configured to provide local wireless communication (i.e., Wi-Fi based communication) between a docking pair that includes the wireless device and the docking station.

Growing community of inventors

San Ramon, CA, United States of America

Bin Xiao