Abstract: A motion vector can be accurately detected in a video signal processing device that performs video signal processing with use of a plurality of processors. The video signal processing device includes motion vector detection units (121a, 121b) that detect motion vectors from an input video signal; a vector memory (122a, 122b) that stores information indicating the detected motion vectors; frame interpolation processing circuits (123a, 123b) that process video signals, the input video signal being divided into n (n being an integer greater than or equal to 2) regions, and processing of video signals corresponding to the regions being divided among the frame interpolation processing circuits (123a, 123b) and performed with use of the motion vector information stored in the vector memory (122a, 122b); and a screen synthesis unit (13) that generates an output video signal by synthesizing the processing results of the frame interpolation processing circuits (123a, 123b).

Abstract: 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.

Abstract: An advertisement search agent detects a service that is provided by a node or a service that can be used by a node immediately after the node is newly connected to a domain. A message acquisition unit acquires an advertisement search message broadcast or multicast by a node connected to either one of a plurality of domains. A message database stores advertisement search messages acquired by the message acquisition unit. A node connection monitoring unit detects the connection of a node to either one of a plurality of domains. When the connection of a node is detected by the node connection monitoring unit, a delivery message extractor extracts an advertisement search message stored in the message database. A message delivery unit delivers the advertisement search message extracted by the delivery message extractor.

Abstract: A microscope system includes an image acquisition unit for acquiring a spectral image of a specimen by using a microscope, a structure specifying unit for specifying an extraction target structure in the specimen, a display method specifying unit for specifying a display method of the extraction target structure, a structure extraction unit for extracting an area of the extraction target structure in the spectral image by using a reference spectrum of the extraction target structure on the basis of pixel values of each pixel included in the spectral image, a display image generator for generating a display image that represents the extraction target structure in the specimen by the display method specified by the display method specifying unit on the basis of an extraction result of the structure extraction unit, and a display processing unit for performing process for displaying the display image on a display unit.

Abstract: In a bandwidth policing apparatus which accommodates a large number of user groups, bandwidth policing for each user group is performed at high speed. When there is any extra bandwidth in bandwidth for a user group, the contracted committed information rate for each user is guaranteed invariably while using this effectively. The bandwidth policing apparatus accumulates packets of a plurality of user groups under bandwidth policing in the same packet accumulate FIFO. Also, for a packet which does not exceed the contracted bandwidth for each user, the contracted bandwidth for each user is guaranteed by deciding that the packet does not exceed the contracted bandwidth for each user group.

Abstract: A communication statistic information collection apparatus comprises a unit for searching a flow table for a flow entry corresponding to a searching key, a unit for collecting statistics information for each of flows, a unit for generating a packet for notifying a collector apparatus of stored statistics information, a unit for updating the flow table in accordance with statistics control information shown by a statistics control entry found as a result of searching the flow table, and a unit for generating a sample packet to be transferred to the collect or apparatus at a specified sampling rate in accordance with the statistics control information shown by a specified entry found from the flow table.

Abstract: Plural retrieval units are prepared, and a retrieval unit which can reduce power consumption is selected according to the condition of a retrieval key. For example, in general, the retrieval unit including a CAM is used. However, when the condition of the retrieval key is simple as in a case where reference is made to only TOS in an interior node of Diffserv and QoS is determined, the retrieval unit including a dscp-QoS table constituted of an FF or RGF is used and the power consumption is reduced. A CAM retrieval start determination section determines that a process is performed by which retrieval unit in accordance with previously set setting information or a previously set header information item.

Abstract: A DNS Proxy unit (A12a) holds the domain name of an encrypted communication target node in a CUG setting table (A125a), intercepts a name resolution request for a communication partner node output from an application (A11x) to a DNS server (B1a), determines by looking up the CUG setting table (A125a) whether the communication partner is an encrypted communication target node, and if the communication partner is an encrypted communication target node, registers the IP address of the name-resolved communication partner in an encrypted communication path setting table (A142a). A data packet sent from the application (A11x) to the IP address is intercepted by a data transmission/reception unit (A14a). A data packet to an IP address registered in the encrypted communication path setting table (A142a) is encrypted by a communication encryption unit (A141a) and transmitted to the communication partner.

Abstract: A flow classifier having a flow CAM having plural flow entries, a search key generator for generating a search key of a format which differs by a flow condition, and a table holding a flow search result corresponding to an address of respective flow entry of CAM, in which access is made to CAM by the search key of a variable format including at least one header information item extracted from a packet header and the flow search result is obtained from the table in accordance with the address of the flow entry coinciding with the search key outputted from CAM to thereby constitute high speed formation of flow classifying by a variety of flow conditions.

Abstract: 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.

Abstract: A policing device having a table storing monitored bandwidth, packet history information for each importance level, and the allocation weight of the monitored bandwidth for each importance level, a policing table control circuit for reading out these items of information into each storage of a policing unit when a packet is inputted, and a calculation unit for judging the bandwidth of the input packet as being conformant or non-conformant to the contract on the basis of these items of information, thereby to control the bandwidth at each importance level.

Abstract: The packet relay device includes a clock generation portion adapted to generate a clock signal of prescribed frequency as a standard for operation of the packet relay device; a timer portion adapted to count up a timer value over a first number of clock cycles on the basis of the clock signal; a relay control portion adapted relay received packets while limiting to a prescribed amount of packets the amount of packets forwardable per a predetermined increment of the timer value; and a power control portion adapted to reduce the frequency of the clock signal to 1/n in order to reduce power consumption by the packet relay device. If the frequency of the clock signal has been reduced to 1/n by the power control portion, the timer portion counts up the timer value over a number of clock cycles equivalent to 1/n the aforementioned number of clock cycles.

Abstract: When a packet transfer equipment receives a packet, it extracts several types of information contained in the received packet such as the destination IP address and the destination port number and, using the extracted information as the key, inquires of a packet transfer method resolution server about the information related to the packet transfer method. The server keeps the correspondences between several types of information contained in the packet and one or more type of information related to the packet transfer method in the database and, in response to the inquiry from the packet transfer equipment, replies one or more type of information related to the packet transfer method. The packet transfer equipment rewrites several types of information such as the destination IP address and the destination port number according to one or more type of information obtained and transfers the received packet.

Abstract: A packet forwarding apparatus which quickly selects a plurality of control information entries to be applied according to header information of an input packet and concurrently performs various the header processing functions. The packet forwarding apparatus comprises a flow retrieval unit which compares header information of the input packet with plural sets of flow identification conditions and concurrently outputs various flow identifiers appropriate to the input packet, various header processing units corresponding to the flow identifiers, and a packet forwarding control unit for controlling forwarding of input packets according to control information outputted from at least one of the header processing units. While each of the header processing units has an information table containing plural information entries, reads a single information entry from the information table according to the flow identifier outputted from the flow retrieval unit, and executes a prescribed arithmetic operation.

Abstract: A policing device having a table storing monitored bandwidth, packet history information for each importance level, and the allocation weight of the monitored bandwidth for each importance level, a policing table control circuit for reading out these items of information into each storage of a policing unit when a packet is inputted, and a calculation unit for judging the bandwidth of the input packet as being conformant or non-conformant to the contract on the basis of these items of information, thereby to control the bandwidth at each importance level.

Abstract: Plural retrieval units are prepared, and a retrieval unit which can reduce power consumption is selected according to the condition of a retrieval key. For example, in general, the retrieval unit including a CAM is used. However, when the condition of the retrieval key is simple as in a case where reference is made to only TOS in an interior node of Diffserv and QoS is determined, the retrieval unit including a dscp-QoS table constituted of an FF or RGF is used and the power consumption is reduced. A CAM retrieval start determination section determines that a process is performed by which retrieval unit in accordance with previously set setting information or a previously set header information item.

Abstract: When a packet transfer equipment receives a packet, it extracts several types of information contained in the received packet such as the destination IP address and the destination port number and, using the extracted information as the key, inquires of a packet transfer method resolution server about the information related to the packet transfer method. The server keeps the correspondences between several types of information contained in the packet and one or more type of information related to the packet transfer method in the database and, in response to the inquiry from the packet transfer equipment, replies one or more type of information related to the packet transfer method. The packet transfer equipment rewrites several types of information such as the destination IP address and the destination port number according to one or more type of information obtained and transfers the received packet.

Abstract: 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.

Abstract: A communication system includes a plurality of terminals and a server that relays packet data transmitted and received between a first terminal and a second terminal among the plurality of terminals. The server includes a connection establishment message processing unit configured to transmit a first SYN ACK message that is a response message to a first SYN message transmitted from the first terminal for establishing a TCP connection upon receiving the first SYN message from the first terminal, and an option information notifying unit configured to transmit a first TCP option information notifying message that includes first TCP option information included in the first SYN message from the first terminal and first communication destination information to indicate the second terminal as a destination of communication.

Abstract: The present invention provides a gateway apparatus and a packet forwarding method for rewriting the AP 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 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.