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Patent

Power transmission device, power transmission method, and power transmission system

TLDR
In this paper, a power transmission device includes a communication unit that transmits a power capability information transmission request, receives power capabilities information in response to the PIC transmission request and transmits randomized parameter information by a communication channel.
Abstract
A power transmission device includes a communication unit that transmits a power capability information transmission request, receives power capability information in response to the power capability information transmission request, and transmits randomized parameter information by a communication channel. The power transmission device also includes a processing unit that produces the randomized parameter information, based on the power capability information. Further, the power transmission device includes a power transmission unit that wirelessly transmits power based on the randomized parameter information.

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Citations
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Patent

Wireless inductive power transfer

TL;DR: In this paper, a wireless power transfer system includes a power receiver (105) and a power transmitter (101) generating a wireless inductive power transfer signal for powering the power receiver during a power transfer phase.
Patent

Wireless power transmission with selective range

TL;DR: In this article, the authors describe a methodology for wireless power transmission based on pocket-forming, which may include one transmitter and at least one or more receivers, being the transmitter the source of energy and the receiver the device that is desired to charge or power.
Patent

System and method for controlling communication between wireless power transmitter managers

TL;DR: In this paper, a method for controlling communication between wireless power transmitter managers is disclosed, where a WiFi connection may be established between WPT managers to share information between system devices, and a WPT manager may need to fulfill two conditions to control power transfer over a customer device; customer device's signal strength threshold has to be significantly greater than 50%, such as 55% or more of the signal strength measured by all other wireless power transmitters and has to remain significantly higher than 50% for a minimum amount of time.
Patent

Receivers for Wireless Power Transmission

TL;DR: In this article, the authors provide various electric receiver arrangements which may be used to provide wireless power transmission using suitable power transmission techniques such as pocket-forming, where receivers may include at least one antenna connected to at least two rectifiers and one power converter.
References
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Patent

Wireless energy transfer, including interference enhancement

TL;DR: In this paper, an apparatus for use in wireless energy transfer is described, which includes a first resonator structure configured for energy transfer with a second resonance structure over a distance D larger than characteristic sizes of the first and second resonator structures.
Patent

Power supply system

TL;DR: In this article, a power supply system is provided, having: a primary side coil; a power transmission apparatus having a primary-side circuit for feeding a pulse voltage resulted from switching a DC voltage which is obtained by rectifying and smoothing a commercial power supply to the primary side-coil; a secondary side coil magnetically coupled to the PSC; and power reception equipment having a secondary-side-circuit with a power adjusting section for adjusting a level of power to be transmitted according to power required by the power receiving equipment.
Patent

Inductive power adapter

TL;DR: In this paper, a wireless communication between a power source and the power adapter is provided for authentication of devices that are allowed by a source to be powered. But this protocol is not suitable for wireless communication in the presence of interference.
Patent

Integrated wireless resonant power charging and communication channel

TL;DR: In this paper, a power delivery system includes a power transmitting unit having a power source operable to source alternating current power and a sending resonant coupling component operable for wireless power transmission by a non-radiated magnetic field at a target resonant frequency.
Patent

Power transmission device, power transmission method, program, power receiving device and power transfer system

TL;DR: In this article, a power transmission device including a communication part that performs communication with an external power transmission devices that transmits power, a transmission control part that controls the power transmission part to selectively transmit power based on a determination result from the determination part.