摘要:
A second terminal device is used in a system including a connection management server, a first terminal device, and the second terminal device. The second terminal device includes: a local address obtaining unit configured to obtain a first local IP address and first authentication information of the first terminal device from the connection management server, if a first global IP address matches a second global IP address; a determination unit configured to determine, by using of the obtained first authentication information, whether a first particular terminal device with which the second terminal device can communicate by use of the first local IP address is the first terminal device; and a target data communication unit configured to communicate first data with the first terminal device by using the first local IP address, if the first particular terminal device is determined to be the first terminal device.
摘要:
A print data creation device may perform a plurality of tasks in parallel. The print data creation device may be provided with a first download device, a second download device, and a sending controller. The first download device may be configured to perform a first task for downloading first data in predetermined data size units from an external device. The second download device may be configured to download second data from the external device in accordance with an address of the second data in a case where the first data having the predetermined data size includes the address of the second data. The second data may be necessary for performing a second task. The sending controller may be configured to prohibit a first download request for downloading the second data from being sent to the external device during the downloading of the first data having the predetermined data size, and to prohibit a second download request for downloading the first data having the predetermined data size from being sent to the external device during the downloading of the second data.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A program generating device connected with at least one first device and at least one second device on a network comprises an authority information acquiring system that acquires authority information representing a process that the at least one second device is authorized to utilize among processes that can be executed by the at least one first device, an electronic certificate generating system that generates an electronic certificate that causes the at least one first device to certify the at least one second device, an application program selecting system that selects an application program for causing the at least one first device to execute the process that the at least one second device is authorized to utilize based on the authority information, and an installation program generating system that generates an installation program for installing the generated electronic certificate and the selected application program into the at least one second device.
摘要:
A communication system includes a first communication terminal, a second communication terminal that has not established communication with the first communication terminal, and a third communication terminal that has established communication with the first communication terminal. The second communication terminal transmits to the first communication terminal a request packet that requests establishment of communication, and receives from the first communication terminal a permission packet that permits establishment of communication. The second communication terminal then establishes communication with the first communication terminal and performs communication with the first communication terminal. A second receiving device receives the request packet from the third communication terminal, after the first receiving device has received the permission packet from the first communication terminal; The second communication terminal transmits the permission packet to the third communication terminal, and establishes communication with the third communication terminal and performs communication with the third communication terminal.
摘要:
The first telephone server may be configured so as to be capable of communicating with a second telephone server with which a first wireless telephone device is registered. The first telephone server may be configured to receive authentication information sent from the first wireless telephone device located within a wireless communication area of the first telephone server. The first telephone server may be configured to send a first command including the authentication information to the second telephone server. The first telephone server may be configured to receive a first response sent in response to the first command from the second telephone server. The first telephone server may be configured to receive a call request, sent from the first wireless telephone device to a second wireless telephone device, by using a wireless communication. The first telephone server may be configured to send the call request to the second wireless telephone device by using the wireless communication without utilizing the second telephone server on a condition that the first response is a positive response and the second wireless telephone device is located within the wireless communication area. The first telephone server may be configured to receive, by means of wireless communication, a second response sent in response to the first command from the second wireless telephone device. The first telephone server may be configured to send the second response to the first wireless telephone device by using the wireless communication.
摘要:
A network device is to be connected with a communication network. The network device is capable of executing a communication function by utilizing the communication network. The network device is provided with an input device, a storage, a communication device, and a communication test device. The input device inputs communication setting data for executing the communication function. The storage is capable of storing at least two patterns of the communication setting data. The communication device executes the communication function by utilizing one pattern of the communication setting data stored in the storage. The communication test device tests whether it is possible to execute the communication function by utilizing the other pattern of the communication setting data stored in the storage while maintaining a state where it is possible for the communication device to execute the communication function by utilizing the one pattern of the communication setting data.