Abstract: Embodiments of the present disclosure describe systems, methods, apparatuses for wirelessly charging handheld and consumer electronics in wireless power delivery environments. In some embodiments, techniques are described for retrofitting wireless power receivers into existing devices e.g., through wirelessly powered battery apparatuses. For example, the apparatuses discussed herein allow any device that accepts standard form factor batteries to be transformed into a wirelessly powered device. The wirelessly rechargeable battery apparatuses can be applied to any battery form factor including custom or semi-custom battery form factors for mobile phones, laptops, tablet computers, etc. Advantageously, among other benefits, the apparatuses discussed herein overcome the product integration challenges discussed above.

Abstract: Embodiments of the present disclosure describe techniques for encoding beacon signals in wireless power delivery environments. More specifically, techniques are disclosed for encoding beacon signals to isolate client devices for wireless power delivery in wireless power delivery environments. The beacon signals can be encoded or modulated with a transmission code that is provided to selected clients in the wireless power delivery environment. In this manner, beacon signals from the select clients can be identified and the corresponding client devices isolated for wireless power delivery. In some embodiments, the transmission code can be a pseudorandom sequence that is used by the wireless power delivery clients to encode transmitted beacon signals.

Abstract: Described herein are embodiments of apparatuses and methods a wireless power transmission system (WPTS) receiving encoded beacon information from a wireless power receiver client (WPRC) and transmitting focused, directional wireless power to the WPRC.

Abstract: The technology described herein relates to wireless power receivers with reconfigurable (or adaptive) antenna configurations for improved wireless power transfer in multipath wireless power delivery environments. In an implementation, a wireless power receiver is described. The wireless power receiver includes one or more radio frequency (RF) antennas, power metering circuitry and control circuitry. The power metering circuitry is adapted to measure at least one characteristic of wireless power received from a wireless power transmission system in a multipath environment. The control circuitry is adapted to monitor the power metering circuitry to determine when the measure of the at least one characteristic of the wireless power fails to meet a preset threshold, and dynamically reconfigure an antenna configuration of the wireless power receiver when the at least one characteristic of the wireless power fails to meet the preset threshold.

Abstract: The technology described herein relate to polarization adaptive wireless power transmission systems. In an implementation, a wireless power transmission system is described. The wireless power transmission system includes a plurality of antennas and control circuitry operatively coupled to the plurality of antennas. The control circuitry is configured to determine polarization information of a beacon signal received at multiple antennas of the plurality of antennas of the antenna array. The beacon signal is transmitted by a client device in a multipath wireless power delivery environment. The control circuitry is further configured to dynamically configure polarization information associated with each of the multiple antennas of the plurality of antennas of the antenna array to match the polarization information determined at respective antennas of the multiple antennas.

Abstract: For determining operational status of components of a wireless signal transmission environment, a signal is received from a client power receiver (CPR), and at least one waveform characteristic value of the signal is calculated. Based on the determined waveform characteristic value(s), a current transceiver system operational status is computed for the CPR at a current location. The determined current transceiver system operational status is compared with a prior-stored last known good transceiver system operational status for the CPR at the current location, and it is determined if, as a result of the comparing, the current transceiver system operational status matches the prior-stored last known good transceiver system operational status for the CPR at the current location. Determining a presence or an absence of the match facilitates identifying one of a presence and an absence of: functional problem(s) in: at least one of the transceiver system and the CPR.

Abstract: Modification of a state of a wireless power receiving device is disclosed. The modification of the state can be based on anticipated delay in a communication session. In an aspect, this can include a delay related to authenticating the wireless power receiving device to a wireless power transmission system or component thereof. In an aspect, this can provide for better control over which wireless power receiving devices have wireless power directed at them, which can be related to safety, reliability, subscription level, or other best practices. In some embodiments, wireless power receiving devices can receive a first level of wireless power in a current state, in a modified state, etc., while a second level of power can be directed to the wireless power receiving device upon a rule related to anticipated delay being satisfied, e.g., upon authentication, upon expiration of a sleep timer, determined subscription status, etc.

Abstract: Methods, apparatus and systems supporting coexistence of wireless devices and equipment in shared wireless medium environments through the use of multiple PHYs. The techniques provided herein may be applied to various types of wireless devices and equipment. Under one example, a wireless device transmits and/or receives signals using one or more frequencies and/or channels within shared wireless medium environments in which other wireless equipment is operating, such as access points and stations in wireless local area networks (WLANs). The wireless devices are configured to coexist with the operations of the other wireless equipment within the shared wireless medium environment by adapting its transmission operations to utilize frequencies or channels that do not interfere with other equipment and/or implementing co-channel and shared channels operations under which access to channels is implemented using standardized WLAN protocols such as, but not limited to PHY and MAC protocols used for 802.

Abstract: Described herein are embodiments of apparatuses and methods for optimizing pairing of a wireless power transmission system (WPTS) with a wireless power receiver client (WPRC) in a localized system. A current WPTS-WPRC pairing and at least one alternate WPTS-WPRC pairing are assessed and the WPTS-WPRC pairing is updated based on associated pairing quality metrics. In this way, a system of many WPTSs and WPRCs will approach an Epsilon equilibrium such that no WPRC would be significantly better served by being paired with a different WPTS.

Abstract: Timing Acquisition Module (TAM) configured for use in or associated with a WTPS and associated methods, apparatus, and systems. The TAM is configured to receive encoded beacons broadcast by wireless power receiver clients requesting power on demand. The TAM decodes the encoded beacons to identify which client broadcast the beacon and notifies the WPTS that a client is requesting power, along with an identifier of that client. In response, the WPTS transmits wireless power signals to the client to service the power request. The WPTS and client may use separate beacons or signals to command the client to broadcast its WPTS beacon, whereby phases of the beacon signal are detected by antennas in the WPTS antenna array and processed to direct the wireless power signals from the WPTS to the client. Multiple apparatus including a combination of a WPTS and TAM may be implemented in a wireless power environment in a cooperative manner, enabling a client to move within the environment while supporting power on demand.

Abstract: The technology described herein is directed to wireless power chargers with integrated power receiving facilities. Indeed, embodiments of the present disclosure describe systems, methods, and apparatuses for implementing wireless power chargers with integrated power receiving facilities. In some implementations, a portable wireless power charging apparatus is disclosed. The portable wireless power charging apparatus includes one or more antennas configured to wirelessly receive directed wireless power from a wireless power transmission system via a first radiative wireless power transfer technology in a multipath wireless power delivery environment.

Abstract: Techniques are described herein for enabling, among other features, more effective wireless charging of devices in wireless power delivery environments through enhanced signal focusing over multiple paths in a multipath wireless power delivery environment. More specifically, the systems and methods discussed herein describe techniques for increasing effective charging of devices, including enhanced ability to focus charging utilizing multiple pathways, phase detection of incoming signals allowing for movement detection in a wireless environment, phase synchronization, and directional arrays.

Abstract: The wireless power transmission is a system for providing wireless charging and/or primary power to electronic/electrical devices via microwave energy. The microwave energy is focused to a location by a power transmitter having one or more adaptively-phased microwave array emitters. Rectennas within the device to be charged receive and rectify the microwave energy and use it for battery charging and/or for primary power.

Abstract: The embodiments described herein comprise a distributed wireless power transmission system including a plurality of wireless power transmission systems (WPTSs) coordinating transmissions to create a virtual WPTS. The plurality of WPTS coordinate amongst each other to compensate for local phase shift differences between respective clock sources so that transmissions from the WPTSs constructively interfere at a wireless power receiver client (WPRC).

Abstract: Various embodiments of the present technology relate generally to wireless power systems. More specifically, some embodiments relate to identifying and correcting failures within wireless power systems (or any other system that is subject to design/device fault). Some embodiments monitor multiple states/control signals in a wireless power transmission system having an array of antenna. A determination can be made as to whether each of the multiple states are in an expected configuration (or make the expected transitions implying different states during normal operations). For examples, this can include identifying whether each antenna in the array of antennas is in a transmitting or receiving state. Any problems (e.g., timing problems, antennas stuck in a Tx or Rx state, controller malfunction, etc.) within the system can be detected by analyzing the multiple states/control signals and compare them against expected behavior/configuration.

Abstract: Coded antenna arrays and associated methods, apparatus and systems are disclosed. Signals transmitted by a client device are received at a plurality of antennas or antenna elements in an antenna array. The received signals are coded using codes such as orthogonal codes and pseudorandom number sequences under which the codes are selected to enable extraction of individual received signals. The coded signals are then combined to form a combined coded waveform that is processed using shared receiver circuitry. The shared receiver circuitry is configured to extract the signals received at each antenna using the codes used to code the received signals. Use of multiple client devices is also supported, with the receiver circuitry further configured to filter out signals received from individual client systems and calculate the phase and magnitude of the signals as received at each antenna.

Abstract: Embodiments of an aperture expansion flap are disclosed. An aperture expansion flap may be used in conjunction with an antenna to expand an effective aperture of the antenna beyond its physical area, geometry, and orientation. An aperture expansion flap may include one or more resonators which may be tuned to adjust a reflection and/or refraction phase of an incident wireless signal, such that the wireless signal may be reflected and/or refracted at angle of reflection and/or refraction that is different than an angle of incidence.

Abstract: Techniques are described herein for determining which power receiver clients are within a set network and limiting power transmission to these select clients. Ignoring some power requests frees up the wireless power transmission system to preferentially supply power to wireless power receiver clients that are determined to be of higher importance. This may be particularly beneficial within a home or business setting where the wireless power transmission system coverage region extends into locations where unknown devices are located.

Abstract: Embodiments of the present disclosure describe techniques for reducing human exposure to wireless energy in wireless power delivery environments. In some embodiments, a wireless power reception apparatus configured to receive wireless power from a wireless charging system in a wireless power delivery environment is disclosed. The wireless power reception apparatus includes a control system and an antenna array. In some embodiments, the control system is configured to dynamically adjust transmission and reception radiation patterns of the antenna array to reduce human exposure to wireless radio frequency (RF) energy.

Abstract: Techniques are described herein for imaging static or semi-static objects in a wireless power delivery environment and tracking non-static objects contained therein. More specifically, embodiments of the present disclosure describe techniques for determining the relative locations and movement of non-static objects in a wireless power delivery environment. Additionally, the techniques describe methods and system for generation of motion-based maps such as heat (or dwell maps) and flow maps.