Yazaki Corporation

Sharp Kabushiki Kaisha Corporation

Kissei Pharmaceutical Co., Ltd.

Other

Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Waseda University

Yasaki Corporation

Minoru Kubota

Shimpei To

Yasuhiro Hamaguchi

Takashi Onodera

Hiromichi Tomeba

Keizo Nishitani

Hideo Namba

Yasuyoshi Serizawa

Kazunari Yokomakura

Shinichi Miyamoto

Seiichi Sampei

Alvaro Ruiz Delgado

Hiroshi Nakano

Shinsuke Ibi

Yoshiaki Nakayama

Akira Harao

Atsuyoshi Yamaguchi

Kenichiro Kawaguchi

Kozue Hirata

Osamu Nakamura

Naoki Okamoto

Mototatsu Matsunaga

Yasuhiro Sugiura

Ken Kikuchi

Keiichi Ozaki

Kenji Iwasaki

Tetsuji Ozawa

Shimpei Toh

Kimihiko Imamura

Hiroshi Suzuki

Takashi Yoshimoto

Mitsuaki Morimoto

Satoshi Suyama

Masahiro Kobayashi

Nobuhiko Fushimi

Tomohiro Sugiura

Yoshihito Aoki

Kazuhiko Fukawa

Hiroshi Ichikawa

Hideaki Masui

Takahiko Suzuki

Shoichi Shitara

Masahiro Muramatsu

Ryo Hamada

Hiroyuki Fujita

Kiyoshi Kasai

Tatsuo Ikegaya

Hidetoshi Isawa

Toshiaki Yamaguchi

Masaaki Ban

Junichi Sonehara

Masaki Oishi

Masanori Muto

Takashi Yanagi

Yasutaka Ochiai

Yoko Masuda

Fumiaki Maehara

Fumio Takahata

Seiji Mori

Chiaki Sugiyama

Yasuo Hosoda

An electrical connection structure includes: a first unit including a terminal; and a second unit including a connection terminal. The electrical connection structure is configured by mounting the second unit to the first unit such that the connection terminal is electrically connected to the terminal. The terminal has a plate-shaped tab. The connection terminal includes a receptacle formed with a connection groove into which the tab is inserted, and a spring contact provided on inner side surfaces of the connection groove. The spring contact comes into elastic contact with outer surfaces of the tab inserted into the connection groove.

Electrical connection structure

A joint connector includes one or more connecting units, in which one of the connecting units includes: a plurality of conductors; and a housing that holds the plurality of conductors, the conductor includes: trunk portions each of which having first ends and second ends; and branch portions each of which diverging from the trunk portion, the branch portion includes an output terminal portions, the housing includes: a first coupling portion disposed on a side of the first end; and a second coupling portion disposed on a side of the second end, and the first coupling portion of one of the housings and the second coupling portion of another one of the housings are coupled each other, causing the first end of the conductor and the second end of another one of the conductors to be connected to each other.

Joint connector

A structure of electrical connection is a structure of mutual electrical connection between a first power supply unit, a second power supply unit, and electric wires. The first power supply unit is provided with a first columnar terminal, and the second power supply unit is provided with a second columnar terminal. A tubular terminal is connected to an end of the electric wire. A first tubular terminal fitted to the first columnar terminal, a second tubular terminal fitted to the second columnar terminal, and a columnar terminal fitted to the tubular terminal are joined to a conductive connection plate. The entirety of the connection plate and the ends of the electric wires are covered with a cover.

Structure of electrical connection

An electric connection box that has a function of relaying power of power supply supplied from an input-side power supply line and supplying the relayed power of power supply to an output-side load on a vehicle, that includes a first circuit unit, a second circuit unit, and an air blower configured to blow air to the first circuit unit, and in which the first circuit unit and the second circuit unit are arranged in a state of being close to each other, the electric connection box includes: a gap portion that is a space formed on a boundary between the first circuit unit and the second circuit unit; and an airflow guide portion configured to guide an airflow blown by the air blower to both the first circuit unit and the gap portion.

Electric connection box

A base station apparatus is capable of adjusting antenna gains in a horizontal direction and a vertical direction of the plurality of antennas included in the base station apparatus, by adjusting a phase and an amplitude of a signal addressed and transmitted to a terminal apparatus, stores a codebook which is shared with the terminal apparatus and describes a plurality of linear filters associated with antenna gains in the horizontal direction and antenna gains in the vertical direction, acquires control information indicating at least one out of a plurality of linear filters described in the codebook, of which notification is sent from the terminal apparatus, performs precoding on the signal addressed to the terminal apparatus, based on the control information and the first codebook, and transmits the signal subjected to the precoding.

Base station apparatus, terminal apparatus, wireless communication system and integrated circuit

A communication device comprising at least a receiver and a demodulator. The receiver receives first receiving signals and second receiving signals, wherein the first receiving signals are allocated to a first set of subcarriers composed of two or more continuous subcarriers, the second receiving signals are allocated to a second set of subcarriers composed of two or more continuous subcarriers, and at least a portion of the second set of subcarriers overlaps a portion of the first set of subcarriers in a time frame. The demodulator configured to detect the second receiving signals transmitted using one or more subcarriers from receiving signals including the first receiving signals and the second receiving signals, wherein the one or more subcarriers are subcarriers such that the first set of subcarriers overlap the second set of subcarriers, and the demodulator being demodulates the first receiving signals.

Radio communication system, method, device and computer  readable medium including first and second receiving signals respectively allocated to first and second overlapping subcarriers

A communication device receives a reception signal including at least a first reception signal and a second reception signal, where the first reception signal is a signal to be transmitted using a first set of subcarriers and the second reception signal is a signal to be transmitted using a second set of subcarriers which overlaps with at least one end of the first set of subcarriers in a time frame. The communication device also demodulates information indicating data included in the first reception signal after reducing the second reception signal transmitted by using one or more overlapping subcarriers of the second set of subcarriers from the reception signal.

Communication system, communication device and communication method that can improve frequency use efficiency

A base station apparatus according to the present invention is capable of adjusting antenna gains in a horizontal direction and a vertical direction of the plurality of antennas included in the base station apparatus, by adjusting a phase and an amplitude of a signal addressed and transmitted to a terminal apparatus, stores a codebook which is shared with the terminal apparatus and describes a plurality of linear filters associated with antenna gains in the horizontal direction and antenna gains in the vertical direction, acquires control information indicating at least one out of a plurality of linear filters described in the codebook, of which notification is sent from the terminal apparatus, performs precoding on the signal addressed to the terminal apparatus, based on the control information and the first codebook, and transmits the signal subjected to the precoding.

MU-MIMO is implemented with little changes in the mechanism of the DCF. There is provided a wireless terminal station apparatus that is used in a wireless communication system formed of one wireless base station apparatus and a plurality of wireless terminal station apparatus, in which grouping is performed on the wireless terminal station apparatus in such a way that the wireless terminal station apparatus belongs to any one of a plurality of groups, and the wireless terminal station apparatus includes a backoff controlling portion that performs control such that a backoff value at the time of random backoff, the backoff value of the wireless terminal station apparatus belonging to at least one group, is selected from a set of candidates for a backoff value which is a set of values formed of predetermined limited numbers.

Wireless communication apparatus, wireless communication method, wireless communication system, and processor

An electric connection box includes a housing in which a containing space is provided, and a first substrate unit and a second substrate unit which are contained in the containing space and output power input from a power source on the outside of the housing with respect to a load. The first substrate unit includes a first power source input terminal including a first terminal exposed portion, and the second substrate unit includes a second power source input terminal including a second terminal exposed portion. The first terminal exposed portion and the second terminal exposed portion are fastened by a fastening member and are electrically connected along with a power source connection terminal at least a part of which is exposed to the outside of the housing and which is connected to the power source, in a state where the first and second substrate units are contained in the housing.

It is intended to provide a transmission device, a reception device and a communication system capable of improving transmission characteristics by performing packet combining by HARQ in MU-MIMO transmission using non-linear precoding. In a case of receiving NAK from any of terminal devices (), a base station device () retransmits a packet, in which an error occurs, addressed to this terminal device. The base station device () transmits the data to be retransmitted together with other transmission data addressed to a different terminal device or addressed to the own terminal device by spatial multiplexing transmission with MU-MIMO. At this time, for the retransmission data, precoding is performed such that a perturbation term same as a perturbation term which has been added to this data by non-linear precoding at the time of initial transmission is added.

Transmission device that performs multi-user MIMO transmission for performing spatial multiplexing and transmitting of a plurality of packets addressed to a plurality of reception devices

Disclosed is wiring substrate, the wiring substrate including a substrate having a high thermal conductive layer, in which at least one of a front surface and a rear surface of the substrate is a mounting surface for a variety of components; a window section formed in the substrate; and a connection terminal extended from an inside surface portion of the window section and bending in a direction perpendicular to a surface of the substrate.

Wiring substrate and manufacturing method thereof

A wiring substrateA includes a high heat radiation substratewhich has a high thermal conductive layer in which at least one of a front surface and a rear surface thereof is a mounting surfacefor a variety of components; a connection terminalwhich is extended from the high heat radiation substrateand bent in a direction perpendicular to a surface of the high heat radiation substrate; and a heat radiation piece sectionwhich is integrally installed to the connection terminal

Growing community of inventors

Shizuoka, Japan

Minoru Kubota