Sony Corporation

Sony Semiconductor Solutions Corporation

Sony Mobile Communications Inc.

Sony Group Corporation

Takaaki Hashiguchi

Osamu Kozakai

Hiroaki Nakano

Kenichi Fujimaki

Shinichi Fukuda

Hiroyuki Mita

Seiji Kobayashi

Hideaki Shoji

Masahiro Uno

Keigo Bunsen

Yusuke Yoneyama

Yoshitaka Yoshino

Takayuki Hirabayashi

Yoshiyuki Akiyama

Tomomichi Murakami

Shinji Komiyama

Hirotsugu Wada

Yuji Murayama

A method for wireless power transmission includes obtaining, via a Q-value circuit, first and second voltages at respective first and second nodes of a resonance circuit. The first and second voltages are effective to determine if foreign matter is present in a space affecting wireless power transmission. The method includes controlling a switching section between the Q-value circuit and the resonance circuit such that at least a part of the electric power transmission process occurs at a different time than when the first and second voltages are obtained.

Detection apparatus, electric power receiving apparatus, electric power transmission apparatus, wireless electric power transmission system, and detection method

A power receiving unit includes: a power receiving section configured to receive power that is fed from a power feeding unit in a non-contact manner; a rectification section configured to rectify the power received by the power receiving section; a method determination section configured to identify a feeding method of the power feeding unit; and a target voltage setting section configured to set a target voltage of the power rectified by the rectification section, to a value corresponding to the feeding method identified by the method determination section.

Power receiving unit, power receiving control method, non-contact feed system, and electronic apparatus

A communication apparatus and method, an antenna apparatus, and a communication system that prevent reduced communication characteristics are disclosed. In one example, a coupled antenna element positioned in the vicinity of a communication apparatus is detected, adaptation of impedance is controlled on the basis of the detection result, and wireless communication is performed via the coupled antenna element with the adapted impedance. In addition, an antenna element is excited by a wireless signal from a communication apparatus positioned in the vicinity of the antenna element, and this communication apparatus is notified of being positioned in the vicinity of this antenna element.

Communication apparatus and method, antenna apparatus, and communication system

A device for power transmission includes a power transmission section and a detection section. The power transmission section is configured to transmit an electric power wirelessly. The detection section is operatively connected to the power transmission section and configured to detect an object within a range from the power transmission section based on a change in impedance in vicinity of the power transmission section.

Device and system for power transmission

An antenna device, including an antenna element constituted by a conductor, having a tubular shape, and including a long notch section formed to extend in an axial direction in at least a part of a side surface, a capacitor formed to bridge end portions of the notch section in a short direction, substantially at a center of the notch section in a longitudinal direction, and a power feed point formed at a position which is apart from the capacitor to a side of one end portion of the notch section in the longitudinal direction and corresponds to a side of one end portion of the notch section in the short direction.

Antenna device, communication device, and communication method

The present technology relates to communication apparatus and method, and a communication system that enable communication control according to a gain of an antenna element. In a communication apparatus that performs wireless communication via an antenna element, a state of a gain of the antenna element is detected, a threshold value for carrier sense is controlled on the basis of the state of the gain of the antenna element that has been detected, the carrier sense is performed to determine whether communication using the threshold value that has been set possible, and wireless communication is performed in a case where it is determined that the communication is possible. The present disclosure can be applied to, for example, a transmission apparatus, a reception apparatus, a transmission/reception apparatus, a communication apparatus, electronic equipment, a computer, a program, a storage medium, a system, and the like.

Communication apparatus and method, and communication system

An information processing apparatus according to an embodiment of the present technology is capable of executing electric field communication and includes an antenna, a medium side electrode, and a communication unit. The antenna is used for other communication different from the electric field communication. The communication unit is electrically connected to each of the antenna and the medium side electrode and executes the electric field communication by using the antenna and the medium side electrode.

Information processing apparatus, electronic device, and information processing system

[Object] To provide an electrode for intra-body communication that can enhance communication performance. [Solution] According to the present disclosure, the electrode for intra-body communication is used in an electrostatic coupling-type intra-body communication method with a carrier frequency of 40 MHz or less, the electrode including: a first electrode configured to be capacitatively coupled with a human body; and a second electrode having a capacitance of coupling with the human body that is five times or more and 11 times or less with respect to a capacitance at which the first electrode is coupled with the human body. A capacitance of coupling generated between the first electrode and the second electrode is 3 pF or less.

Electrode for intra-body communication and wearable device

The present technology relates to a transmitter/receiver and a transmitting/receiving method capable of suppressing deterioration of transmission efficiency during reception while maintaining transmission efficiency during transmission. A first electrode is provided close to a communication medium, a second electrode is provided in a manner facing the first electrode, and a third electrode is provided close to the communication medium together with the first electrode. A transmission circuit is connected to the first electrode and the second electrode so as to transmit a signal, and a reception circuit is connected to the first electrode and the second electrode so as to receive the signal. A switch electrically connects the second electrode to the third electrode, and an electrode control unit controls electrical connection between the second electrode and the third electrode by turning ON/OFF the switch. The present technology can be applied to, for example, a transmitter/receiver that transmits and receives a signal via a human body.

Transmitter/receiver and transmitting/receiving method

A device configured to receive power (B), the device comprising a coil (L) having a resistance, and at least one circuit () configured to calculate a target voltage value based on an amount of power received by the device and the resistance of the coil, and control received power voltage based on the calculated target voltage value.

Power receiver, non-contact power transmission system, and method of controlling received-power voltage

There is provided an antenna apparatus including: a magnetic sheet; a first antenna provided on one face of the magnetic sheet and used for communication; and a second antenna provided on the other face opposite to the one face of the magnetic sheet and used for wireless power transmission.

Antenna apparatus

Disclosed herein is a wireless power supplying system, including a power transmission device adapted to transmit power supplied thereto, a repeater device adapted to repeat the transmission power of the power transmission device, and a power reception device adapted to receive the power repeated by said repeater device.

Growing community of inventors

Tokyo, Japan

Takaaki Hashiguchi