Sony Corporation

Sony Group Corporation

Yuji Murayama

Hiroaki Nakano

Shinichi Fukuda

Tomomichi Murakami

Kenichi Fujimaki

Katsuyuki Tanaka

Susumu Kusakabe

Osamu Kozakai

Shigeru Arisawa

Yoshitaka Yoshino

Takashi Miyamoto

Keigo Bunsen

Takaaki Hashiguchi

Shinji Komiyama

An energy receiver including a power receiver coil configured to wirelessly receive power transmitted from a power transmitter; a detection section configured to detect a foreign object; and a power storage section configured to supply power to the detection section during detection of the foreign object.

Energy receiver, detection method, power transmission system, detection device, and energy transmitter

A detection device includes a coil configured to be electromagnetically coupled with an outside, and a detection section connected to a circuit including the coil. The detection section is configured to measure a Q value of the circuit using an alternating-current signal at a frequency different from a frequency of an alternating-current signal of contactless power feed.

Detection device, energy receiver, energy transmitter, power transmission system, and detection method

A power receiving unit includes a communication unit, a control unit, a detecting unit that performs metallic foreign matter detection, and a charge storage unit. The control unit is configured to control charging so electric power is stored in the charge storage unit for consumption by the detecting unit during Q-value measurement when the control unit receives a Q-value measurement command from the power transmitting device through the communication unit.

Power receiving device, power transmitting device, wireless power transfer system, and wireless power transfer method

An energy receiver includes: a power receiver coil configured to wirelessly receive power transmitted from a power transmitter; a detection section configured to detect a foreign object; and a power storage section configured to supply power to the detection section during detection of the foreign object.

A power feeding apparatus, power receiving apparatus, wireless power feeding system, and method for wireless transfer of power are provided. The power feeding apparatus includes an impedance detector, a controller, a power transmitter, a variable matching circuit, and a signal transmitter. The controller is configured to provide first control information and second control information based on an impedance detected by the impedance detector. The power feeding apparatus' variable matching circuit is configured to change a variable diameter of a power feeding coil according to the first control information. The power receiving apparatus includes a power receiver, a signal receiver, and a variable matching circuit. The power receiving apparatus'variable matching circuit is configured to change a variable diameter of a power feeding coil according to the second control information provided by the power feeding apparatus.

Power feeding apparatus, power receiving apparatus, wireless power feeding system and method for wireless transfer of power

Disclosed herein is a wireless electrical charging apparatus, including: a power-supply unit configured to generate power to be transferred to a power receiving apparatus; a power transferring device configured to transfer power generated by the power-supply unit to the power receiving apparatus; a power relaying device capable of relaying power transferred by the power transferring device to the power receiving apparatus; and a power-relaying-device moving mechanism section configured to move the power relaying device.

Wireless charging apparatus and wireless charging system

A structure of a system using an IC card is simplified. A controller and active antennas are connected to each other through a bus. The controller transmits a command outputted from a host computer and including an ID for discriminating the active antennas to all the active antennas connected to the bus. The respective active antennas judge whether or not the received command is directed to itself by checking the contained ID. In the case where it is judged that the command is directed to itself, transfer of data to the IC card is performed, and the result is transferred to the controller through the active antenna and the bus.

Information processing apparatus and method, information processing system, and medium

Information processing apparatus and method, information processing system and medium

A portable electronic apparatus is disclosed which comprises a detecting element for detecting a high-frequency signal received by an antenna and for outputting the detected signal, a sampling element for sampling the detected signal with regard to a frequency higher than a clock frequency of the detected signal and for outputting sampled results, and a decoding element for decoding data transmitted by the high-frequency signal by use of the signal level distribution of the detected signal derived from the sampled results.

Growing community of inventors

Tokyo, Japan

Yuji Murayama