摘要:
A broker node transmits an event in a distributed event distribution system. In order to flexibly deal with fluctuations in event transmission load, the broker node includes monitoring means that monitors fluctuations in event transmission load on the broker node for each event rule, and control means that dynamically changes an event topic to transmit the event in accordance with fluctuations in transmission load and notifies another node of an instruction of the change using a control message (event Topic control message).
摘要:
A server that relays packet data transmitted and received between a first terminal and a second terminal among plurality of terminals, includes a transfer table storing unit configured to store a transfer table in which a connection address pair, includes a first connection address and a second connection address, is registered, and a connection establishment message processing unit configured to transmit a SYN ACK message as a response message to a SYN message, upon receiving the SYN message, for establishing a TCP connection from each of the terminals. The first connection address is used to connect the server and the first terminal and the second connection address is used to connect the server and the second terminal.
摘要:
The present invention provides a gateway apparatus and a packet forwarding method for rewriting the application header of a forwarded packet without terminating a TCP connection between a client and a server. For that purpose, the gateway apparatus in accordance with the present invention uses the conversion section 116 of the gateway module 110 to register, in a conversion table 117, a pair of a sequence number (Seq#) which is expected to be contained in the TCP header of a next packet to forward and a Seq# after conversion which is obtained by considering a change in packet size due to application (AP) header rewriting as a pair of an expected Seq# and a conversion Seq# as well as a pair of an expected Ack# and a conversion Ack# contained in the TCP header of a packet in a direction opposite to that of the previously forwarded packet at the time of forwarding. Then, the conversion section 116 refers to the conversion table 117 at next packet forwarding to rewrite the Seq# and the Ack# contained in the TCP header of a packet to forward to the conversion Seq# and conversion Ack# corresponding to the expected Seq# and expected Ack# matching these numbers.
摘要:
The DNS server according to the present invention includes a user information identification unit which identifies an attribute of a user who has transmitted a DNS query message through a user information obtaining unit and handing over an identification result to a response generation unit, a user information obtaining unit for referring to a user information database to obtain user attribute information of a user who has transmitted a DNS query message, and a response generation unit for searching a response database for a name resolution method relevant to user attribute information handed over from the user information identification unit to conduct name resolution according to the found name resolution method, thereby enabling name resolution to be minutely customized for each attribute of a user.
摘要:
A microscope system includes an image acquiring unit that acquires a specimen image formed by capturing a specimen multi-stained by a plurality of pigments using a microscope; a pigment amount acquiring unit that acquires a pigment amount of each pigment staining a corresponding position on the specimen, for each pixel of the specimen image; and a pigment selecting unit that selects a display target pigment from the plurality of pigments. The system also includes a display image generating unit that generates a display image where a staining state of the specimen by the display target pigment is displayed, on the basis of the pigment amount of the display target pigment in each pixel of the specimen image; and a display processing unit that displays the display image on a display unit.
摘要:
A temperature difference estimated value is found from a video signal using a temperature estimated value representing the temperature of the panel outer periphery of a display screen of a PDP and a reference value representing the temperature of the panel outer periphery of the PDP which is outputted from a panel periphery temperature setter by a temperature difference estimator, and the luminance of an image displayed on a display is controlled depending on the temperature difference estimated value by a controller and a brightness controller.
摘要:
If the communication partner of a client node (A1a) is an encryption communication target node (C1), a DNS Proxy unit (A12a) in the client node rewrites a response to a name resolution request for the communication partner node of an application from the actual IP address of the communication partner node to a loopback address that changes depending on the communication partner. On the basis of the destination loopback address of a data packet transmitted from the application, a communication encryption module (A13a) in the client node identifies the communication partner and the encryption communication path to be used for communication with the communication partner. Hence, encryption communication can simultaneously be executed directly with a plurality of communication partner nodes by using the communication encryption module that operates as an independent process.
摘要:
A packet transfer apparatus having: a flow detector 30 for identifying a flow to which an input packet belongs from header information of the input packet and outputting a flow bundle identifier peculiar to the identified flow or a flow bundle identifier common to the identified flow and at least another flow; and a controller 40 having an information table 43 including a plurality of information entries corresponding to the flow bundle identifier, for reading out one of the information entries from the information table on the basis of the flow bundle identifier received from the flow detector and performing a predetermined computing process.
摘要:
The display device of the present invention is provided with a means (8) for setting the writing pulse width of the attentional light-emitting sub-field wider than the normal writing pulse width at all the gray scale levels in the case where at least two continuous non-light-emitting sub-fields possibly exist before the attentional light-emitting sub-field at a certain gray scale level among all the gray scale levels specified on the basis of the number Z of sub-fields and the weighting of the sub-fields. According to the display device of the present invention, the discharge for writing can be stably executed without reducing the number of sub-fields in one field.
摘要:
A temperature difference estimated value is found from a video signal using a temperature estimated value representing the temperature of the panel outer periphery of a display screen of a PDP and a reference value representing the temperature of the panel outer periphery of the PDP which is outputted from a panel periphery temperature setter by a temperature difference estimator, and the luminance of an image displayed on a display is controlled depending on the temperature difference estimated value by a controller and a brightness controller.