Abstract: A controller manages a connection of a wireless terminal to a wireless base station, and provides a source base station with information for connecting the wireless terminal by way of an anchor when the wireless terminal moves between wireless base stations. When devices on both sides of an anchor connected communication are wireless terminals connected to wireless base stations in said same wireless communications system, a wireless base station device switches a path such that data is transmitted/received between the wireless base stations to which the wireless terminals are connected on both sides of the anchor connected communication without intervention of the anchor.

Abstract: A telephone relay system enabling a terminal having multiple telephone numbers to originate and receive calls same as a terminal having only one telephone number is provided. When a connection management unit of an agent device receives a call request from a terminal device, it activates a terminal calling unit while designating a current telephone number and also activates a counterpart calling unit to establish a terminal-side connection between the current telephone number of the terminal device and the agent device and a counterpart-side connection between the agent device and the counterpart terminal. When an incoming call from the counterpart terminal arrives, the connection management unit establishes a counterpart-side connection corresponding to the incoming call, and activates the terminal calling unit while designating the current telephone number to establish a terminal-side connection.

Abstract: The present invention provides a radio communication system that enables handovers between radio base stations to be conducted at a short time using a mobile communication terminal having one radio communication part. A pseudo radio communication control part in a mobile communication terminal links with a packet transfer part and a remote radio control part in a radio bridge device to enable operation as though a radio communication part disposed in the radio bridge device were directly connected to the mobile communication terminal. Thus, even when radio communication parts are disposed in a plurality of terminals, by using the pseudo radio communication control part instead of a radio communication control part, an application can carry out control as though all the radio communication parts were connected in the same terminal.

Abstract: The present invention provides a communication network comprising a host network, a plurality of base stations, at least a mobile host capable of establishing links to the base stations, and a hierarchy-network of plural routers which are improved in transferring performances for ensuring continuous operations with a reduced load without packet loss.

Abstract: The present invention provides a communication network comprising a host network, a plurality of base stations, at least a mobile host capable of establishing links to the base stations, and a hierarchy-network of plural routers which are improved in transferring performances for ensuring continuous operations with a reduced load without packet loss.

Abstract: The present invention provides a communication network comprising a host network, a plurality of base stations, at least a mobile host capable of establishing links to the base stations, and a hierarchy-network of plural routers which are improved in transferring performances for ensuring continuous operations with a reduced load without packet loss.

Abstract: Disclosed are a cellular phone terminal, a cellular phone system and a privacy protection method therefor that enable to prevent leakage of private information from the communication data when conducting a search for wireless LAN base stations. The cellular phone terminal comprises, in addition to the cellular phone function section, a cellular phone network transmitter/receiver section, a wireless LAN transmitter/receiver section and a wireless LAN connection control section, an SSID•MAC address management section connected to the wireless LAN connection control section and the cellular phone network transmitter/receiver section. The SSID•MAC address management section is allocated by a MAC address management server one or more temporary MAC addresses together with their time limit by way of the cellular phone network transmitter/receiver section and a cellular phone base station and the temporary MAC addresses are used when conducting a search for wireless LAN base stations.

Abstract: A mask blank container adapted to house a mask blank with a resist film. The container comprises a container body 5 for receiving the mask blank; a cap member 6 to be put on the container body; and a fixing member 9 adapted to fix the container body and the cap member to each other when the cap member is put on the container body. The container body and the cap member have fitting portions 51 and 61 made of a resin material and fitted to each other, respectively. The fixing member comprises a first member 91 having an engaging portion 91 a to be engaged with the fitting portion of the cap member, and a second member 92 having an engaging portion 93 to be engaged with the fitting portion of the container body. A distance between the engaging portions of the first and the second members is desired to be variable.

Abstract: The present invention provides a communication network comprising a host network, a plurality of base stations, at least a mobile host capable of establishing links to the base stations, and a hierarchy-network of plural routers which are improved in transferring performances for ensuring continuous operations with a reduced load without packet loss.

Abstract: A MAC address management system acquires code data obtained by encoding a temporary MAC address that can be temporarily used and decodes the acquired code data to perform wireless communication. The MAC address management system includes a MAC distributing server device in which a temporary MAC address which can be temporarily used is stored and a wireless communication device that acquires the temporary MAC address from the MAC distributing server device and performs wireless communication by using the acquired temporary MAC address, the wireless communication device acquires code data obtained by encoding the temporary MAC address from the MAC distributing server device, decodes the acquired code data, and performs wireless communication by using the decoded temporary MAC address.

Abstract: The present invention is directed to perform high-reliable authentication using a one-way function that a communication is a communication which was performed with the same apparatus to be authenticated by storing a password only in an apparatus to be authenticated (it is unnecessary to store a password in both of an authentication apparatus and an apparatus to be authenticated) without transmitting a challenge code. When a setting is updated in a setting management server, authentication is performed by using a one-time password obtained last time. A sound communication terminal performs a process using a hash function once on a one-time password transmitted this time, and performs authentication by determining whether the processed one-time password matches a one-time password obtained last time or not. Whether the information at the time of the change in the setting is proper or not is determined by a sound terminal.

Abstract: A wireless communication system includes a plurality of base stations, a mobile wireless communication device which makes wireless communication with the base stations, a terminal device, and a router through which the base stations make communication with an IP network. The terminal device transmits an address thereof to the mobile wireless communication device, before the mobile wireless communication device makes link with one of the base stations. The terminal device fabricates a frame addressed to an address of the router, and transmits the frame to the router, after the mobile wireless communication device has made link with one of the base stations. The router transmits an address thereof to the base stations, before the mobile wireless communication device makes link with one of the base stations.

Abstract: To suppress communication delay and data loss caused by the radio type of a mobile terminal and the radio communication band when a communication packet is sent to the mobile terminal in a mobile IP system. A mobile IP control system includes: a radio base station (40A) which provides a radio connection link to a mobile terminal (50); a home agent (20) which transfers a communication packet transmitted from a partner terminal (60), to the mobile terminal (50); and a foreign agent (30A) which relays mutual communication between the foreign agent (30A) and the radio base station (40A). The foreign agent (30A) notifies the home agent (20) of the communication band of the radio communication performed between the radio base station (40A) and the mobile terminal (50). The home agent (20) performs band control for packet transmission to the mobile terminal (50) in accordance with the notified communication band.

Abstract: A proxy mobile IP system comprises: a mobile terminal including a time management/notification unit; the time management/notification unit alerting time information, managed by the mobile terminal itself, to an access gateway at the time of access authentication in proxy mobile IP (Internet Protocol) communication; the access gateway; the access gateway including a time information acquisition/management unit alerting the time information, received from the mobile terminal, to a mobility anchor, at the time of performing proxy mobile IP registration in the proxy mobile IP communication, as the time information received from the mobile terminal is carried on a registration notification message; and the mobility anchor; the mobility anchor including a time information acquisition/management unit alerting the registration notification message including the time information to a proxy mobile IP registration unit responsible for performing proxy mobile IP registration.

Abstract: Disclosed are a cellular phone terminal, a cellular phone system and a privacy protection method therefor that enable to prevent leakage of private information from the communication data when conducting a search for wireless LAN base stations. The cellular phone terminal comprises, in addition to the cellular phone function section, a cellular phone network transmitter/receiver section, a wireless LAN transmitter/receiver section and a wireless LAN connection control section, an SSID•MAC address management section connected to the wireless LAN connection control section and the cellular phone network transmitter/receiver section. The SSID•MAC address management section is allocated by a MAC address management server one or more temporary MAC addresses together with their time limit by way of the cellular phone network transmitter/receiver section and a cellular phone base station and the temporary MAC addresses are used when conducting a search for wireless LAN base stations.

Abstract: A wireless communication system includes a plurality of base stations, a mobile wireless communication device which makes wireless communication with the base stations, a terminal device, and a router through which the base stations make communication with an IP network. The terminal device transmits an address thereof to the mobile wireless communication device, before the mobile wireless communication device makes link with one of the base stations. The terminal device fabricates a frame addressed to an address of the router, and transmits the frame to the router, after the mobile wireless communication device has made link with one of the base stations. The router transmits an address thereof to the base stations, before the mobile wireless communication device makes link with one of the base stations.

Abstract: A H(e)NB (1A) includes a radio IF 10) that performs radio communication with a UE (2), a LAN-IF (11) connectable to a LAN (34), and an address management unit (15) capable of storing a MAC address of the UE (2) different from a MAC address of the H(e)NB (IA) assigned to the LAN-IF (11). The H(e)NB (1A) is configured to transmit, to the LAN (34), a MAC frame having the MAC address of the UE (2) as a source address in response to receiving transmission data to the LAN (34) from the UE (2).

Abstract: The present invention provides a radio communication system that enables handovers between radio base stations to be conducted at a short time using a mobile communication terminal having one radio communication part. A pseudo radio communication control part in a mobile communication terminal links with a packet transfer part and a remote radio control part in a radio bridge device to enable operation as though a radio communication part disposed in the radio bridge device were directly connected to the mobile communication terminal. Thus, even when radio communication parts are disposed in a plurality of terminals, by using the pseudo radio communication control part instead of a radio communication control part, an application can carry out control as though all the radio communication parts were connected in the same terminal.

Abstract: Disclosed are a cellular phone terminal having built-in wireless LAN, a cellular phone system and a privacy protection method therefore that enable to prevent leakage of private information (or privacy) of the user of the cellular phone terminal from the communication data when conducting a search for wireless LAN base stations. The cellular phone terminal 10 comprises, in addition to the cellular phone function section 11, a cellular phone network transmitter/receiver section 14, a wireless LAN transmitter/receiver section 13 and a wireless LAN connection control section 12, an SSID•MAC address management section 15 connected to the wireless LAN connection control section 12 and the cellular phone network transmitter receiver section 14.

Abstract: A transmission unit includes: transmission rate control means for controlling a transmission rate; first transmission error detecting means for detecting data loss caused due to congestion in a transmission network; and second transmission error detecting means for detecting data loss (for example, packet loss) caused due to data error in the communication network. In the transmission unit, the transmission rate control means controls the transmission rate separately for a case where the first transmission error detecting means has detected data loss and a case where the second transmission error detecting means has detected data loss caused due to data error.