Sony Group Corporation

Sony Corporation

Bridgestone Corporation

Asahi Kasei Microdevices Corporation

Mitsubishi Chemical Corporation

Takasago International Corporation

Tokyo University of Agriculture and Technology

Jsr Corporation

Tamron Company, Ltd.

Nec Corporation

Kioxia Corporation

Nihon Nohyaku Co., Ltd.

Hitachi Kokusai Yagi Solutions Inc.

Ken Tanaka

Kosuke Aio

Motoyuki Ohtake

Yoichi Ozawa

Ryuji Nakagawa

Tatsuyuki Takahashi

Yusuke Tanaka

Terrence Eugene Hogan

Junko Matsushita

Masaki Tsujimoto

Shigeru Sugaya

Hiromasa Uchiyama

Steven Luo

Yasuhide Hosoda

Takuo Sone

Toshiki Fukuchi

Eiju Suzuki

Kazuyuki Sakoda

Masahiro Shibata

Daisuke Inoue

Kenichi Nakanishi

Mohamed Abouelseoud

Takahiro Saito

Christine M Rademacher

Kenichi Maruhashi

Liangxiao Xin

Thomas Handte

Toshihiro Tadaki

Dana Ciochina

Go Igarashi

Makoto Ueda

Ryuichi Hirata

Masaya Yamashita

Qing Xia

Hisamatsu Nakano

Shinichiro Tsuda

Tohru Yokozawa

Kenji Kai

Takuya Ishida

Wataru Kuriyama

Sawako Kiriyama

Kouichirou Tani

Takuya Tsutsumi

Eiji Yano

Tsutomu Naitou

Takaomi Matsumoto

Shuko Okui

Manabu Katsurada

Nobuo Kyomura

Noriko Mori

Kouji Masaki

Norihisa Kawamura

Toshimitsu Iwai

Takatoshi Ohzeki

Konoha Takeuchi

Akira Kagaya

Takumi Fukuda

Naoko Sumitani

Yuki Itoh

Ryota Mihara

Tomohiko Hakamata

Shigeaki Matsuo

Akemi Hosokawa

Norihiko Mikoshiba

Iichi Wako

Yo Yamagata

Miki Tokitake

Mari Yasuda

Fumihiro Shiraishi

Kazuya Okano

Akiko Miyauchi

Yuuta Hoshino

Eiji Suzuki

Akiko Yabe

Kouji Kobukata

Tadashi Takahama

Shuuya Yamamoto

Fuminori Oota

Seiken Fujita

Koji Masaki

Toshihito Umegaki

The present technology improves an effective rate in a case where joint transmission is performed once in multi-APs that perform joint transmission, and then a weight is changed and joint transmission is performed again. A wireless base station includes a wireless control unit and a communication unit. The wireless control unit generates weight update information for updating a first weight to a second weight, the first weight being a weight used in joint transmission previously performed with another wireless base station, the second weight being a weight used for performing the joint transmission after the joint transmission using the first weight. The communication unit notifies the another wireless base station of the weight update information.

Wireless base station

Interference with another terminal caused by joint transmission of a plurality of wireless base stations is appropriately estimated. A wireless base station includes a wireless control section and a communication section. The wireless control section, when performing joint transmission with a joint wireless base station, generates a reference signal for estimating interference given to a wireless terminal connected to another wireless base station, and determines a setting regarding joint transmission in accordance with a result of estimation of interference based on the reference signal. The communication section transmits a reference signal to another wireless base station or a wireless terminal, and announces, to a joint wireless base station, a setting regarding joint transmission.

Wireless base station and wireless terminal

According to one embodiment, a controller, in a case where a first difference between a first number of times of erase and a second number is equal to or smaller than a second threshold, executes a copy operation in a first mode, the second number of times of erase is larger than the first number of times of erase. In a case where the first difference is larger than the second difference, the controller executes the copy operation in a second mode. A ratio of a copy amount to a cumulative data write amount in a first mode is smaller than a ratio of the copy amount to the cumulative data write amount in the second mode. The cumulative data write amount is an amount of data written to the nonvolatile memory based on write commands.

Memory system

A die pad, a signal processing IC, an adhesive layer, and at least one magnetoelectric conversion element included in a magnetic sensor are encapsulated by a molding resin. At least a part of the first end surface of the signal processing IC is positioned on a side closer to the at least one magnetoelectric conversion element than a first end surface of the die pad on a side of the at least one magnetoelectric conversion element in a plan view. An isolation portion into which the molding resin enters is provided between the first surface of the die pad on a side of the first end surface, and the first surface of the signal processing IC on a side of the first end surface, and a thickness of the isolation portion is smaller than a thickness of the die pad.

Magnetic sensor

Phase tracking when joint transmission is performed by a plurality of wireless base stations is easily implemented. The wireless base stations perform coordinated transmission to transmit to the wireless terminal in coordination with a coordinated wireless base station. The wireless base station includes a wireless control unit and a communication unit. The wireless control unit makes an agreement on a reference signal with the coordinated wireless base station that performs coordinated transmission, and generates an agreed reference signal. The communication unit transmits a signal including the reference signal to the wireless terminal in coordination with the coordinated wireless base station. The wireless terminal estimates a frequency error among the wireless base stations that perform coordinated transmission on the basis of the received reference signal.

A plurality of pieces of data is properly transmitted with use of a plurality of beams. Data generated in an application is divided into a plurality of pieces of data, different priorities are assigned to the plurality of pieces of data, and the plurality of pieces of data is transmitted with a plurality of beams. A beam quality acquiring section acquires quality of each of the plurality of beams. A beam evaluating section performs evaluation of the plurality of beams on the basis of quality of each of the beams. A beam assigning section determines a correspondence between the plurality of beams and the plurality of pieces of data on the basis of evaluation of the beams and the priorities of data. A controller controls a transmitter to transmit the plurality of pieces of data through the corresponding plurality of beams.

Wireless communication device

A current sensor is configured such that at least one magnetoelectric conversion element, a conductor, and a signal processing IC are encapsulated with an encapsulating portion. The current sensor is comprised of a pair of first lead terminals that is partially exposed on a side surface of the encapsulating portion, is electrically connected to the conductor, inputs a measurement current to the conductor, and outputs the measurement current from the conductor; a metal member that is partially exposed on a side surface of the encapsulating portion and is spaced apart from the conductor; and an element supporting portion that is comprised of a metal plate or a semiconductor substrate, supports the at least one magnetoelectric conversion element and a metal member on a surface on a same side as the first surface, and is spaced apart from the conductor.

Current sensor

Provided is a communication device including a plurality of antenna elements and that performs wireless communication in a high frequency band while suppressing the circuit scale. The communication device includes: a communication unit that transmits and receives a wireless signal using a plurality of antenna elements; and a control unit that controls compensation for degradation in communication quality in the communication unit on the basis of control information received from outside. The communication unit includes a plurality of wireless interfaces and a delay compensation unit that compensates for delay of the wireless interfaces. The control unit determines whether or not to perform the compensation on the basis of capability information exchanged with a communication partner.

Communication device and communication method

The present technology relates to a wireless communication device and method, and a wireless communication terminal capable of reducing a processing time. The wireless communication device causes a wireless transmission unit to transmit a reference signal in a known pattern addressed to a wireless communication terminal in coordination with one or more other wireless communication devices, generates a request signal for requesting a second measurement result simpler than a first measurement result of the reference signal from the wireless communication terminal, and causes the wireless transmission unit to transmit the request signal. The present technology can be applied to a communication system.

Wireless communication device and method, and wireless communication terminal

A communication device that performs processing for estimating out-of-band leakage power is provided. The communication device includes a communication unit that transmits and receives wireless signals in a first frequency band and a second frequency band, and a control unit that controls a communication operation in the communication unit, transmits a reference signal in the first frequency band and the second frequency band, and receives a communication result from a transmission destination of the reference signal. The control unit determines the transmission destination of the reference signal on the basis of results of exchange of capability information with the first terminal and the second terminal, and performs control such that a notification signal for notifying of transmission of the reference signal in advance is transmitted in the first frequency band and the second frequency band.

In joint transmission using an access point, unnecessary data transmission and occurrence of a waiting time are avoided. A wireless communication devices includes a communication control unit and a signal generation unit. The communication control unit generates control information for requesting communication result information regarding whether reception is successful in a transmission destination device when first joint communication is performed jointly with another wireless communication device. The signal generation unit generates a signal including the control information generated by the communication control unit as a signal for urging second joint communication jointly with the other wireless communication device.

Wireless communication device and wireless communication method for performing data transmission jointly with other wireless communication devices

A current sensor includes at least one magnetoelectric conversion element, a conductor that at least partially surrounds the at least one magnetoelectric conversion element in a plan view and through which a measurement current to be measured with the at least one magnetoelectric conversion element flows, an element supporting portion comprised of a semiconductor substrate, and supports the at least one magnetoelectric conversion element and the conductor on a first surface, a signal processing IC that processes a signal that is output from the at least one magnetoelectric conversion element, an encapsulating portion that encapsulates the at least one magnetoelectric conversion element, the conductor, and the signal processing IC, and a pair of first lead terminals that is partially exposed on a side surface of the encapsulating portion and is electrically connected to the conductor, inputs the measurement current to the conductor and outputs the measurement current from the conductor.

A weight (weighting factor, and Matrix of Steering Vectors) for performing joint transmission together with another wireless base station is efficiently generated. The wireless base station performs the joint transmission with the another wireless base station. The wireless base station includes a wireless control unit and a communication unit. The wireless control unit generates information regarding channel state information between a terminal which is a destination at the time of performing the joint transmission and a plurality of wireless base stations which is a transmission source of the joint transmission. The communication unit transmits the information regarding the generated channel state information to the another wireless base station that performs the joint transmission.

A sound output device includes a speaker that outputs sound, a housing that includes a sound introduction hook, the sound introduction hook having an internal space that is formed as a sound introduction space for introducing sound output from the speaker, the speaker being arranged in the housing, and an ear pad portion that is provided to be continuous to the housing, the sound introduction hook including an opening through which sound is emitted toward an ear, the sound introduction hook being to be mounted on a root portion of an auricle from a helix side, the ear pad portion being to be mounted on the root portion of the auricle from an earlobe side.

Sound output device

Growing community of inventors

Tokyo, Japan

Ken Tanaka