Abstract: A communication device performs P2P communication with the other communication device by establishing a session through a server, and includes a first transmitting portion, if the communication device operates as a called device requested to establish the session, upon the receiving a session start message from the other communication device, transmits to the other communication device a response message including information on a port for directly receiving data from the other communication device; a session establishing portion establishes the session by transmitting a control message to a port specified by information in the session start message or a response message received from the other communication device; a command accepting portion accepts a user's command permitting to receive from the other communication device; and a starting portion starts transmitting and receiving of data to and from the other communication device, upon the accepting of the command.

Abstract: A communication system comprises a NAT device, a terminal device, and a communication control device. The communication control device comprises a first storage unit that stores a NAT address, a first receiving unit that receives a type request signal, a first determination unit that determines whether the NAT address matching a source IP address of the type request signal is stored in the first storage unit, and a first transmitting unit that transmits the type information associated with the NAT address matching the source IP address to the terminal device. The terminal device comprises a second transmitting unit that transmits the type request signal, a second receiving unit that receives the type information, and a communication control unit that performs Peer to Peer communication with another terminal device that is subordinate to another NAT device by performing communication using a method to establish communication based on the received type information.

Abstract: A communication device is described in which a communication path is to be established with another communication device. The communication device transmits a first request packet to the other communication device and awaits a response. When a second request packet is received from the other communication device instead of a response to the first request packet, the communication device determines whether to transmit a positive response to the second request packet based on additional information included in the second request packet.

Abstract: A system includes a communication control device, a first communication device and a second communication device. The communication control device acquires first network information that identifies a first internal network to which the first communication device is connected, and second network information that identifies a second internal network. The communication control device decides a first method based on the acquired information. The first method indicates a method of transmission from the first communication device to the second communication device, and of transmission from the second communication device to the first communication device. The communication control device transmits information indicating the first method to the first communication device and the second communication device. The first communication device and the second communication device mutually communicate using the first method, based on the received information indicating the first method.

Abstract: A printing device, to be connected to a network system including network devices sharing image data in a particular format, comprises: a print instruction receiving unit which receives print data containing font information from a network device; a query transmitting unit which transmits a supply query, inquiring whether each network device is capable of supplying a printer font regarding the font information as image data in the particular format, to the network devices; a response receiving unit which receives affirmative responses, indicating that the supply of a printer font regarding the supply query as image data in the particular format is possible, from network devices in response to the supply query; and a printing unit which prints out the print data by use of a printer font held by a network device transmitting the affirmative response as image data in the particular format in response to reception of the affirmative response.

Abstract: Disclosed is a sintered nickel positive electrode that has an expanded usable range to a low charging region by using nickel hydroxide having a particular crystal structure as a main component of a positive electrode active material. In the sintered nickel positive electrode of the invention, a nickel sintered substrate is filled, through a plurality of impregnation steps, with a positive electrode active material containing nickel hydroxide (?-Ni(OH)2) as a main component. In addition, the nickel hydroxide (?-Ni(OH)2) has an integrated intensity ratio of a peak intensity in a (001) face of 1.8 or more with respect to a peak intensity in a (100) face, where the peak intensities are determined by X-ray diffraction analysis, while an integrated intensity ratio of a peak intensity in a (001) face with respect to a peak intensity in a (100) face is about 1.5 in the related art. Using the nickel hydroxide having an integrated intensity ratio of the peak intensity in the (001) face of 1.

Abstract: A telephone device comprises an operating device, a call request receiving device, a first identification information determination device and a first positive response sending device. The call request receiving device may be configured to receive a call request. The first identification information determination device may be configured to determine, on a condition that the call request is received by the call request receiving device in a time between a call preparing operation being started and the call preparing operation being ended on the operating device, whether or not telephone identification information corresponding to the call preparing operation is identical to telephone identification information of the source of the call request. The first positive response sending device may be configured to send the positive response in reply to the call request on a condition that a positive determination is obtained by the first identification information determination device.

Abstract: A communication system including a communication control device connecting to an external network, a NAT device connecting to the external network, and a terminal device connecting to an internal network under control of the NAT device, the terminal device including a NAT information identification portion, a NAT information transmitting portion that transmits NAT type information to the communication control device, a type request transmitting portion, a type response receiving portion that receives the NAT type information transmitted from the communication control device in response to the type request signal, and a first communication portion that performs communication with another terminal device using the received NAT type information, the communication control device including a NAT information receiving portion, a storage control portion that stores the received NAT type information in a storage device, a type request receiving portion, and a type response transmitting portion that transmits the stor

Abstract: A data utilization device is provided. The data utilization device includes an information storing unit; a first command receiving unit that receives a first command from a terminal device; a second command transmitting unit that transmits a second command to a server specified by the first command; a server registration item receiving unit that receives server registration items from the server; a third command transmitting unit that transmits a third command including the server registration items to the terminal device; a server registration information receiving unit that receives server registration information from the terminal device; a fourth command transmitting unit that transmits a fourth command including the server registration information to the server; a response receiving unit that receives from the server a response to the fourth command; and a storage control unit that stores the data utilization information if the response is an affirmative response.

Abstract: An electronic mail communication device is used in connection with a server for communicating an electronic mail. The electronic mail communication device is provided with an input device that inputs an electronic mail communication command, a storage that stores information indicating whether or not an electronic mail communication through the server is enabled, and a communication control device. The communication control device outputs a signal to the server to establish connection with the server in a case where the electronic mail communication command is input to the input device while the information indicating the communication enable state is stored in the storage. The communication control device inhibits from outputting the signal to the server in a case where the electronic mail communication command is input to the input device while the information indicating the communication disable state is stored in the storage.

Abstract: An information processing apparatus is provided. The information processing apparatus includes an event detecting unit to detect events, an event notifying information generating unit to generate event notifying information, an event notifying information storage to store the event notifying information in a predetermined arrangement, a client information list storage to store information concerning the client device to which event information concerning each of the events is provided, a notifying unit to provide a piece of the event information corresponding to a first event to the client device, and a judging unit to judge whether the piece of the event information was provided to the client device normally. The notifying unit provides another piece of the event information corresponding to a second event, when the judging unit judges the precedent piece of the event information was provided to the client device normally.

Abstract: An information processing apparatus having a request receiving unit to receive a request issued from a client device for event information, a destination device determining unit to determine the client device which issued the request as a destination device of the event information, a destination device information storing unit to store first destination device information which specifies the destination device, an event information providing unit to provide the event information to the destination device according to the first destination device information, a first cancellation unit to invalidate the first destination device information when delivery of the event information failed, and a second cancellation unit to invalidate second destination device information, which specifies the identical destination device according to the removal of the first destination device information when the second destination device specifying the identical destination device is detected in the destination device information

Abstract: A print data creation apparatus may include an obtaining device, a decompressed data creation device, a band determination device, a deletion device, a data range storage device, a data range specifying device, and a print data creation device. The obtaining device obtains compressed data of one or more image objects. The decompressed data creation device decompresses the compressed data in partial units. The band determination device determines for which band the decompressed data is necessary. The deletion device deletes the decompressed data for which the band has been determined. The data range storage device stores an association of the band and a data range of the compressed data necessary for creating print data corresponding to the band. The data range specifying device specifies a data range of compressed data associated with a band. The print data creation device creates print data from compressed data within the data range specified.

Abstract: A method may be provided with a first downloading step of downloading a predetermined size of first compressed data of a first image object which is to be included in both a first band of print data and a second band of the print data, a first decompression step of creating first decompressed data by decompressing the first compressed data having the predetermined size downloaded in the first downloading step, a determination step of determining whether all the first decompressed data corresponding to the first band has been created, a repeating step of repeating the first downloading step, the first decompression step, and the determination step in a case where a negative determination is obtained in the determination step, a second downloading step of downloading second compressed data of a second image object in a case where a positive determination is obtained in the determination step, and a second decompression step of creating second decompressed data by decompressing the second compressed data downloa

Abstract: A printer is provided with a receiving device, a storage device, a printing device, a cancel input device and an invalidating device. The receiving device is configured to receive a print command. The storage device is configured to store an association of print data and a print command receiving time at which the print command has been received by the receiving device. The printing device is configured to print the print data. The cancel input device is configured to input a cancel command. The invalidating device is configured to invalidate printing of the print data associated with the print command receiving time that is earlier than a cancel input time at which the cancel command has been input.

Abstract: An information processing device creates a hash value from an event log every time the event occurs. The information processing device generates a digital signature by encrypting the hash value with its own private key. The device transmits the signature-bound event log obtained by binding the digital signature with the event log to a log management apparatus. The log management apparatus decrypts the hash value from the event log of the received signature-bound log information using a device public key. The apparatus also generates a new hash value from the event log verifies the coincidence of the decrypted hash value and the new hash value, and authenticates signature-bound event logs for which this coincidence has been verified. The apparatus stores signature-bound event logs that have been authenticated. Every time an event occurs, the device transmits an event log bound with a digital signature that is created using its private key.

Abstract: An image forming device, which is configured to receive print data from a client via a network and process the print data, includes a print request receiving unit configured to receive a print request transmitted by the client with a protocol through a port of the image forming device, a protocol specifying unit configured to specify a kind of the protocol used in the transmission of the print request, a destination information creating unit configured to create destination information representing a destination to which the print data are to be sent, based on the protocol of the kind specified by the protocol specifying unit, and a destination information sending unit configured to send the destination information to the client with the protocol of the specified kind.

Abstract: A terminal device includes a first communication portion that performs tunneling communication with another terminal device via a server adapted to realize tunneling communication between the terminal device and the other terminal device by encapsulating and decapsulating packets, an identification portion that identifies, by communication with a management server, type information of at least one of a NAT device that controls an internal network to which the terminal device is connected and another NAT device that controls another internal network to which the other terminal device is connected, a selection portion that selects a start-up procedure to start peer to peer communication based on the type information, a switching portion that performs communication based on the start-up procedure, starts the P2P communication, and then switches from the tunneling communication to the P2P communication by terminating the tunneling communication, and a second communication portion that performs the P2P communicati

Abstract: There is provided a server provided in a network system in which a router intervenes between different networks to allow at least one device on the different networks to perform one-to-one communication. The server comprises a first device information acquisition unit configured to perform one-to-one communication with a device on another network connected to its own network via the router to acquire device information on the device on another network, and to store the acquired device information in a storage unit, and a device information reply unit configured such that in response to receipt of a search packet searching for device information transmitted in a form of one-to-many communication from a device on the server's network, the device information reply unit extracts the device information matching a search criterion contained in the search packet from the storage unit and returns the extracted device information to the device which transmitted the search packet.

Abstract: A communication device performs P2P communication with the other communication device by establishing a session through a server, and includes a first transmitting portion, if the communication device operates as a called device requested to establish the session, upon the receiving a session start message from the other communication device, transmits to the other communication device a response message including information on a port for directly receiving data from the other communication device; a session establishing portion establishes the session by transmitting a control message to a port specified by information in the session start message or a response message received from the other communication device; a command accepting portion accepts a user's command permitting to receive from the other communication device; and a starting portion starts transmitting and receiving of data to and from the other communication device, upon the accepting of the command.