Hitachi, Ltd.

Canon Kabushiki Kaisha

Alaxala Networks Corporation

Mitsubishi Denki Kabushiki Kaisha

The University of Tokyo

Daiichi Sankyo Company, Limited

Nippon Denpa Co., Ltd.

Takashi Isobe

Takeki Yazaki

Shigeru Kamata

Masao Aoyagi

Akira Sato

Takeshi Aimoto

Hidemitsu Higuchi

Kensuke Nakamura

Shigeru Hashimoto

Katsumi Tanaka

Toshiyuki Shimizu

Akiyasu Sumi

Yoshinori Watanabe

Kensuke Miyake

Takaichi Shimozato

Hiroki Akatsuka

Takuro Mori

Atsuo Kanno

Takashi Kagari

Jun Ishiguro

Taizo Mitani

Yusuke Murakami

Amane Mitani

Yuji Motoi

Umeharu Ohto

Atsushi Manno

Masaki Yamada

Yuichi Ishikawa

Akira Hiramatsu

Makoto Katsuma

Hiroyasu Murakami

Keiichi Ito

Toyokazu Mizogui

Tomoyuki Oku

Yuji Oishi

Akira Okuno

Naoki Tanida

Tetsuya Oohashi

Toyoki Ishida

The present invention provides a pharmaceutical composition comprising an antibody which binds specifically to human TLR7 or monkey TLR7 and does not bind to mouse TLR7 or rat TLR7, and has an activity of inhibiting a function of human TLR7 or monkey TLR7, and the like.

Anti-human TLR7 antibody

When a proxy device is used between a transmission terminal and a reception terminal, receives final data from the transmission terminal, and fails immediately thereafter, a situation is avoided where transmission is completed in the transmission terminal, but reception is not completed in the reception terminal. There is provided a means for not returning ACK when a data packet is received in a state in which there is no data which waits for ACK and transmission of which is in progress, and there is no data which waits for arrangement and reception of which is in progress in the proxy device, for returning ACK for data received one step before when a data packet is received in a state in which there is data which waits for ACK and transmission of which is in progress, or there is data which waits for arrangement and reception of which is in progress.

Communication device and communication system

A transmission apparatus includes: a sending unit configured to send data to a receiver apparatus via the network; a receiving unit configured to receive acknowledgement data including an acknowledgement and information on a receive window size from the receiver apparatus via the network; a transmission bandwidth controller configured to control a bandwidth for data to be sent from the sending unit; a transmission bandwidth restriction unit configured to restrict the bandwidth controlled by the transmission bandwidth controller in such a manner that a data size of data for which no acknowledgement is received from the receiver apparatus among data which is sent is equal to or smaller than an upper limit size determined from the receive window size; and a switching controller configured to switch activation and inactivation of the transmission bandwidth restriction unit based on the data size and the receive window size.

Communication apparatus

To efficiently retransmit discarded packets and to reduce discarded location storage capacity, it is provided a communication apparatus to be coupled to a network, the communication apparatus being configured to: transmit data to a correspondent communication apparatus coupled to the network; receive an acknowledgement transmitted from the correspondent communication apparatus; monitor whether or not a storage capacity shortage for storing discarded locations of transmitted data in the correspondent communication apparatus; and retransmit data by setting a retransmission priority for discarded locations in a case of the storage capacity shortage.

Communication apparatus and packet transfer method

To prevent the switching time influences power saving efficiency and packet loss prevention performance, it is provided a network apparatus for transferring packets, including a transfer part for transferring received packets to a given destination, and a determining part for obtaining traffic volume of the packets to be transferred. The determining part determines periodicity of changes to the traffic volume, predicts traffic volume after a predetermined period of time with use of the determined periodicity, and controls transfer performance of the transfer part based on a result of the traffic volume prediction.

Network apparatus, performance control method, and network system

A communication device that controls a transmission bandwidth of TCP communication includes a means for linearly increasing the transmission bandwidth of the TCP communication during a certain period of time after a data segment whose reception has been acknowledged enters an update state without detection of congestion in the TCP communication, a means for non-linearly increasing the transmission bandwidth after the certain period of time, a means for detecting congestion using a change rate of a discarding rate or a retransmission rate in the TCP communication, a means for estimating a retransmission rate and a change rate thereof using a previous history of the transmission bandwidth and a retransmission bandwidth, and a means for estimating a discarding rate and a change rate thereof using a previous history of the transmission bandwidth and an ACK reception number.

Communication device

In communication using TCP, since the transmission bandwidth is significantly influenced by RTT and discard rate, there was a problem that only the transmission bandwidth significantly lower than the contracted bandwidth could be obtained under the environment such as WAN causing large RTT, large hop number and many discarded segments. There is provided an apparatus connected to a receiving side terminal having a means for feeding back to notify all discarded segments to an apparatus connected to a transmitting side terminal; a means for retransmitting the discarded segments fed back to be notified to the apparatus connected to the transmitting side terminal; and a means for controlling transmission bandwidth, based on retransmission bandwidth and discard bandwidth by the apparatus connected to the transmitting side terminal.

Communication apparatus and communication system for enhancing speed of communication between terminals

A relay device relays between two TCP communication items of a LAN side and a WAN side. When a line bandwidth of the WAN side is smaller than a line bandwidth of the LAN side, buffer overflow in a LAN side reception buffer and a WAN side transmission buffer of the relay device is prevented, and a connection is prevented from being forced to be canceled. A value of a reception window size (rwnd) described in an ACK packet returned to a transmission terminal of the LAN side is controlled based on a transmission throughput, a discarding rate, and an RTT measured in TCP communication of the WAN side, and a total size of unarranged data and a size of arranged data in a reception buffer of the LAN side and a size of untransmitted data and ACK awaiting data in a transmission buffer of the WAN side.

A device in a line part from a LAN to a WAN includes a plurality of cards which includes a TCP converter relaying two TCP communications. The TCP converter exchanges the number of connections in which data transmission is in progress and the number of connections in which data reception is in progress between TCP converters, receives the total number of connections in which data reception is in progress in an opposite device and an access line bandwidth to a WAN from the opposite device for each TCP connection. A control bandwidth is determined on the basis of the retransmission ratio of data, the total number of connections in which data transmission is in progress and an access line bandwidth to the WAN, and the total number of connections in which data reception is in progress and an access line bandwidth to the WAN of which the opposite device notifies.

Communication apparatus and communication system for enhancing speed of communications between terminals

In order to enable mounting of a cabinethaving a display unit to a supporting base, axial membersandin the shape of a regular polygonal prism are disposed in the cabinetand fitting holesandinto which the regular polygonal prisms can be fitted, respectively, are disposed in the supporting base. By opening and then closing, or opening and then moving the axial membersand, the user can fit or remove them into or from the fitting holesand, respectively, so as to mount or demount the cabinet to or from the supporting base. By tilting the cabinet by an angle when fitting the axial members into the fitting holes, respectively, the user can change the rotational attitude of the cabinetwith respect to the supporting base. Thereby, the user can use the display unit at different times and at different positions with simple manipulations.

Vehicle-mounted display appararus

A data transfer apparatus is provided for monitoring the bandwidth of a first and a second flow, comprises flow detecting means for comparing information in a header field of a packet with the first and second detection conditions to detect a flow to which the packet belongs, compliance/violation determining means for measuring the bandwidth of the packet belonging to the detected flow to determine whether the packet complies with or violates a traffic condition which is set corresponding to each flow detection condition, and packet processing determining means for determining processing for a packet which satisfies both the first and second flow conditions based on the compliance/violation determination results corresponding to both traffic conditions, and determining processing for a packet which satisfies one of the first and second flow conditions based on the compliance/violation result corresponding to the flow detection condition satisfied by the packet.

Data transfer apparatus

A network controller, capable of high-speed extraction of malicious traffic from networks and determining characteristics of such traffic, includes a unit for accumulating a number of packets for each arbitrary itemset included in the header portions of packets to be transferred, and a unit for determining whether the accumulated value obtained by the accumulating unit exceeds a predetermined threshold, and determines the types of packets to be transferred from accumulated values of the itemset and an itemset different from the itemset when the number of packets exceed a threshold.

Network controller and control method with flow analysis and control function

Growing community of inventors

Yokohama, Japan

Takashi Isobe