Sony Corporation

Sony Semiconductor Solutions Corporation

Sony Group Corporation

Sony Ericsson Mobile Communications Japan, Inc.

Osamu Kozakai

Hiroaki Nakano

Kenichi Fujimaki

Shinichi Fukuda

Takaaki Hashiguchi

Keigo Bunsen

Shinji Komiyama

Takashi Miyamoto

Tomomichi Murakami

Masayoshi Abe

Takayuki Hirabayashi

Hiroyuki Mita

Masayuki Tanaka

Seiji Kobayashi

Hiroyuki Matsumoto

Toru Terashima

Masahiro Uno

Yuji Murayama

Yusuke Yoneyama

Ken Matsui

Rikiya Ishikawa

Yoshitaka Yoshino

Hiroaki Fujita

Yoichi Uramoto

Hideaki Shoji

Hirofumi Kawamura

Kazukuni Takanohashi

Uichiro Omae

Mohamed Ratni

Hiroyuki Shigei

Masatoshi Sawamura

Yu Togasaki

Yuichiro Saito

Tomonori Tsuchiyama

Noboru Ono

Provided is a communication device which includes a communication section that receives, via a transceiving antenna, a reference signal to be transmitted from a base station, a measurement section that measures a reception-signal level on a basis of the reference signal received by the communication section, and a decision section that decides at least one of a transmission power or a number of times of transmission for starting random access to the base station, on a basis of the reception-signal level measured by the measurement section, and a difference between a gain in a reception frequency band of the transceiving antenna and a gain in a transmission frequency band of the transceiving antenna.

Communication device, communication method, and communication system

An information communication device includes a transmission unit that wirelessly transmits a signal including data to a communication partner device via a transmission antenna, a reception unit that receives, via a reception antenna, an Ack signal wirelessly transmitted from the communication partner device; and a control unit that changes an antenna characteristic control mode of the transmission antenna, based on a reception state of the Ack signal received by the reception unit.

Information communication device and information communication system

A reception apparatus () includes plural antennas () that are compatible with an LTE communication scheme and one reception processing section () processing a reception signal acquired by any one of the plural antennas ().

Reception apparatus, antenna control method, and communication system

A power receiving device according to the present disclosure includes a power receiving section that receives power from a power feed device with use of a power receiving coil; and a communication section that transmits coil information to the power feed device, the coil information indicating whether or not a coil is provided near the power receiving coil.

Power receiving device and electronic apparatus

A power feeding apparatus is provided. The power feeding apparatus includes a power feeding unit configured to supply electric power to a power receiving apparatus through a magnetic field; a measuring unit configured to measure an electric characteristic value and to generate a measurement value; a power receiving unit configured to provide a set value; and a foreign substance detection unit configured to detect a foreign substance in the magnetic field based on the set value and the measurement value. A power receiving apparatus, a power feeding system, and a method of controlling power feeding are also provided.

Power feeding apparatus, power receiving apparatus, power feeding system, and method of controlling power feeding

Methods and apparatus for detecting the presence of undesirable foreign matter in a region between a wireless power transmission apparatus and a power reception apparatus are described. First and second detection methods, based on different detection schemes, may be used to detect and distinguish the presence of foreign matter from misalignment during power transfer operation. A first detection method may be used before power is transferred to a load in a power reception apparatus, and a second detection method may be used while power is supplied to the load.

Wireless power transfer device with foreign object detection, system, and method for performing the same

The present technology relates an antenna apparatus and a communication apparatus that make it possible to miniaturize the antenna apparatus and improve communication performance. A solenoid-coil-type solenoid antenna and a metal plate disposed to have an overlapping portion with the solenoid antenna in a length direction of the solenoid antenna are included. The overlapping portion includes a portion corresponding to a length of 50% to 80% of a length of the solenoid antenna. Furthermore, a slit is formed in the metal plate, and the solenoid antenna is disposed in parallel to the slit. It is possible to apply the present technology to an antenna apparatus included in a communication apparatus that performs wireless communication.

Antenna apparatus and communication 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

A power feed device according to the present disclosure includes a power feed section that supplies power wirelessly to a power receiving device having a power receiving coil, a communication section that receives coil information transmitted from the power receiving device and indicating whether or not a coil is provided near the power receiving coil, and a controller that performs, on the basis of the coil information, a first determination as to whether or not to supply power to the power receiving device and controls an operation of the power feed section on the basis of a result of the first determination.

Power feed device

A power feed system according to the present disclosure includes a power feed device and a power receiving device. The power receiving device includes a power receiving section that receives power wirelessly from the power feed device with use of a power receiving coil, and a first communication section that transmits, to the power feed device, coil information indicating whether or not a coil is provided near the power receiving coil. The power feed device includes a power feed section that supplies power wirelessly to the power receiving device, a second communication section that receives the coil information, and a controller that performs, on the basis of the coil information, a first determination as to whether or not to supply power to the power receiving device, and controls an operation of the power feed section on the basis of a result of the first determination.

Power feed system

A communication apparatus of the present disclosure includes: an antenna unit including a first electrode and a second electrode; a communication circuit unit that performs communication using a human body as a communication medium via the antenna unit; and a series circuit including a switch and a capacitor that are coupled to each other in series, and coupled between the first electrode and the second electrode.

Communication apparatus and communication system

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 antenna comprises a coil element comprising a core element and coil wound around the core element, the core element arranged along a longitudinal direction and having a first front surface and a second front surface. A first metallic plate element and a second metallic plate element are provided. The first metallic plate element is arranged on a first side of the core element and extends with its first end in the longitudinal direction beyond the first front surface of the core element and its second end in the longitudinal direction adjacent the core element. The second metallic plate element is arranged on a second side of the core element opposite said second side and extends with its first end in the longitudinal direction beyond the second front surface of the core element and its second end in the longitudinal direction adjacent the core element.

Growing community of inventors

Kanagawa, Japan

Osamu Kozakai