Patent application number | Description | Published |
20090196202 | TRANSMITTING APPARATUS AND PATH SETTING METHOD - A transmitting apparatus in a network constituted of a plurality of rings connected via a plurality of routes includes a node type determining unit and a backup path setting message transmitting unit. The node type determining unit determines, on receipt of a working path setting message requesting to set a working path, whether the transmitting apparatus is any one of a branch node at which a backup path is branched off from the working path or a merge node at which the backup path merges into the working path. The backup path setting message transmitting unit transmits, when the transmitting apparatus is determined to be a branch node or a merge node, a backup path setting message specifying a route from a ring including the transmitting apparatus to a connection node connecting the ring and a neighboring ring. | 08-06-2009 |
20100205289 | COMMUNICATION DEVICE FOR PATH CONTROL, AND PATH CONTROL METHOD - Information for performing path control is added to a signaling message used in a network including a higher-level path which accommodates a lower-level path. When a state change occurs in the higher-level path, a communication device extracts using the information a lower-level path to be controlled for the same control item as the control item indicating the state change in the higher-level path. A path to be controlled is selected from among the lower-level paths accommodated in the higher-level path. By controlling the extracted path, a plurality of paths can be easily controlled when there are accommodation relationships among layers. | 08-12-2010 |
20100208721 | ROUTE CALCULATION APPARATUS AND ROUTE CALCULATION METHOD - A route calculation apparatus calculates an intra-domain route in a target domain assigned with the route calculation apparatus. The intra-domain route is a part of a route for a target path in a network divided into plural domains. Each of the plural domains includes at least one node device. The target path passes through transit domains out of the plural domains from a source node device included in a source domain to a destination node device included in a destination domain. The route calculation apparatus includes a calculator and a route calculation requester. The calculator calculates the intra-domain route in the target domain. The route calculation requester requests a first route calculation apparatus assigned to the destination domain to calculate an intra-domain route in the destination domain when the target domain is one of the plural domains except the destination domain and except domains adjacent to the destination domain. | 08-19-2010 |
20100287422 | TRANSMISSION DEVICE AND METHOD FOR PUTTING TRANSMISSION DEVICE TO SLEEP - A transmission device including at least one transmitter/receiver unit that is coupled to another transmission device via a communication line, a power supply unit that supplies power to the at least one transmitter/receiver unit, and a control unit that notifies the another transmission device about first sleep start information specifying time at which an operating mode of the at least one transmitter/receiver unit is to be changed to a sleep mode and that stops the supply of power from the power supply unit to the at least one transmitter/receiver unit at the time specified by the first sleep start information. | 11-11-2010 |
20120096459 | METHOD OF MIGRATING VIRTUAL MACHINE - A method of migrating a virtual machine from a first computer to a second computer includes: performing an external communication of the virtual machine via a first buffer before starting migration of the virtual machine, performing an external communication of the virtual machine via a second buffer different from the first buffer during the migration, starting the migration upon receiving a request for migrating the virtual machine, storing information destined for the virtual machine in the second buffer upon receiving the information during the migration, and transferring the information stored in the second buffer to the second computer in response to termination of the virtual machine. | 04-19-2012 |
20120188866 | COMMUNICATION CONTROL APPARATUS AND COMMUNICATION CONTROL METHOD - A communication control apparatus includes a storage unit and a processor. The storage unit stores, in association with a port number, first address information regarding apparatuses connected to a port identified by the port number. The processor receives a first affected address list containing second address information regarding apparatuses which may be affected by a trouble, extracts the first address information stored in the storage unit in association with a port number of a port via which the first affected address list has been received, selects third address information which is included in both the first and second address information, updates the first affected address list by replacing the second address information with the third address information to acquire a second affected address list, and transmits the second affected address list via each port other than the port via which the first affected address list has been received. | 07-26-2012 |
20130034095 | COMMUNICATION APPARATUS - A communication apparatus includes a plurality of communication ports, a first memory unit, a second memory unit, and a processor. The second memory unit stores address information. Each entry of the address information includes an address of a node in association with one of the plurality of communication ports. The processor receives a message including an address of an incommunicable node via a receiving port which is one of the plurality of communication ports. The processor stores the received address in the first memory unit. The processor transmits the message via the plurality of communication ports other than the receiving port. The processor erases a target entry of the address information from the second memory unit after the transmission. The target entry includes an address which matches the address stored in the first memory unit. | 02-07-2013 |
20130177020 | COMMUNICATION APPARATUS AND CONTROL METHOD - Each edge switch counts the number of times that a first-arrival packet of the same packets was received for each port, and after a predetermined time elapsed, a main edge switch that is determined based on the transmission source and destination MAC addresses identifies a port based on the number of times, and registers the identified port in a table of the main edge switch with the transmission source MAC address. On the other hand, a sub-edge switch clears the number of times once after the predetermined time elapsed, and counts the number of times again. After that, when the predetermined time elapsed again, similar to the main edge switch, the sub-edge switch identifies a port based on the number of times, and registers the identified port in a table of the sub-edge switch with the transmission source MAC address. | 07-11-2013 |
20130243005 | APPARATUS AND METHOD FOR RELAYING A PACKET TRANSMITTED FROM AND TO AN INFORMATION PROCESSOR - An apparatus relays a packet transmitted from and to an information processor via plurality of ports. The apparatus stores, in a memory, first information identifying the information processor in association with a port from which the packet is to be transmitted. When a first packet is received via a first port, the apparatus determines whether second information contained in the first packet and identifying a transmission destination of the first packet is stored in the memory. When the second information is stored in the memory, the apparatus transmits the first packet from a second port associated with the second information, and otherwise transmits the first packet from third ports that are sequentially selected, from among the plurality of ports other than the first port, in variable order that is dynamically determined based on a current traffic state of the plurality of ports. | 09-19-2013 |
Patent application number | Description | Published |
20090141684 | Mobile communication system - A mobile communication system has a plurality of nodes, hierarchically connected to each other, including a source base station and a target base station. A U-plane management station includes detecting unit detecting a handover for the mobile terminal, and a Bi-casting unit redundantly transmitting, when detecting the handover for the mobile terminal, the same user data addressed to the mobile terminal toward both of the source base station and the target base station. The target base station includes a retaining unit receiving the user data addressed to the mobile terminal, which is transmitted by the U-plane management station, and retaining the user data, and a wireless transmitting unit wirelessly transmitting, when the mobile terminal is wirelessly connected after moving, the user data requested by the mobile terminal in the user data retained by the retaining unit and addressed to the mobile terminal. | 06-04-2009 |
20090193128 | Call Connection Processing Method And Message Transmission/Reception Proxy Apparatus - A call connection processing method that uses SIP (Signal Invitation Protocol) to perform call connection between user terminals and a backbone network via an access network is disclosed. In the method the user terminal instructs a proxy apparatus in the access network to send specified SIP signaling messages to the backbone network in place of the user terminal; by following that instruction, the proxy apparatus does not send a certain SIP message of the SIP signaling messages to the user terminal, or sends another SIP messages to the backbone network in place of the user terminal. | 07-30-2009 |
20100056145 | BASE STATION CONTROLLER, BASE STATION AND COMMUNICATION METHOD - A base station controller that manages a plurality of cells includes a receiving part configured to receive, from another base station controller that manages a cell sharing a communication area with each of the plurality of cells, identification information of a cell group to which a cell formed by a base station of connection destination candidate of a mobile station connected to a base station under control of the another base station controller belongs, and a control part configured to exercise control to transmit a message requesting connection to the mobile station to each base station forming the cells contained in the cell group. | 03-04-2010 |
20100173661 | COMMUNICATION SERVER, RADIO BASE STATION, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A communication server communicates with a radio base station that is capable of being connected to a fixed line by a user. A receiving unit receives station identification information identifying the radio base station and line identification information identifying a fixed line to which the radio base station is connected. An acquiring unit acquires authentication information indicating preliminarily set correlations between the station identification information and the line identification information. A determining unit determines whether a correlation between the station identification information and the line identification information received by the receiving unit coincides with a correlation indicated in the authentication information acquired by the acquiring unit. A determination result output unit outputs a determination result of the determining unit. | 07-08-2010 |
20110002272 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - A mobile communications network is a communications network that performs both circuit switching and packet switching. A data communications network is a communications network that performs packet switching. A communication apparatus is capable of connecting to the mobile communications network and the data communications network. The communication apparatus includes a communication control unit which obtains access from a mobile station to the mobile communications network, terminates the access whose call type is packet-switched call, and replaces that access with access to the data communications network. | 01-06-2011 |
20110092207 | RADIO NETWORK CONTROL DEVICE AND RADIO NETWORK CONTROL METHOD - In a radio network control device, if TMSI included in a connection request is not stored in a subscriber-information storage unit, IMSI corresponding to the TMSI is acquired from a higher-level device and access control is performed for radio communications between a mobile terminal and a base station. | 04-21-2011 |
Patent application number | Description | Published |
20100058094 | DATA PROCESSING APPARATUS - A data processing apparatus includes a CPU including a register, a cache memory, a main memory configured to exchange data with the cache memory, a control part configured to control the exchanging of data between the main memory and the cache memory, and a power supply part configured to supply power to the register, the cache memory, and the main memory. The register, the cache memory, and the main memory are each configured to store data and maintain the stored data therein without being supplied with the power from the power supply part. The control part is configured to stop the CPU from accessing the register, the cache memory, and the main memory where an abnormality occurs in the power supply part. | 03-04-2010 |
20110010508 | Memory system and information processing device - A memory system includes a first memory that is used as a main memory of a target device, a second memory that has an access speed lower than that of the first memory, a securing section that secures a predetermined area of the first memory as a temporary storage area of the second memory, and a memory control section that receives an instruction to write data into the second memory, temporarily stores the data into the first memory and also transfers the stored data from the first memory to the second memory. | 01-13-2011 |
20110314347 | MEMORY ERROR DETECTING APPARATUS AND METHOD - A memory error detecting apparatus for detecting an error of a subject memory, the memory error detecting apparatus includes a memory bus connected to the subject memory, a mirror memory connected to the memory bus so as to receive the same data as data to be written into and read from the subject memory, the received data being written into the mirror memory, an address acquiring portion configured to acquire an address related to the data written into the subject memory, a mirror memory controller configured to control data writing or reading to or from the mirror memory on the basis of the acquired address, a comparator configured to compare data read from the subject memory and data read from the mirror memory, and an error detector configured to detect a data error on the basis of a result of the comparison. | 12-22-2011 |
20120254663 | SEMICONDUCTOR MEMORY DEVICE AND INFORMATION PROCESSING APPARATUS INCLUDING THE SAME - A semiconductor memory device is disclosed that includes an ODT circuit configured to be connected to a bus which transmits a data signal or a data strobe signal between a memory block and an input-output terminal; a first switch configured to be inserted into the bus between the memory block and the ODT circuit; a mode controller configured to switch off the first switch during a test of the memory block; and an oscillator configured to be connected to the ODT circuit, wherein a test signal is supplied to the ODT circuit from the oscillator during the test of the memory block. | 10-04-2012 |
20130145233 | MEMORY MODULE AND SEMICONDUCTOR STORAGE DEVICE - A memory module includes a plurality of memory chips stacked on top of one another, each of the plurality of memory chips including a memory cell unit that is divided into a plurality of blocks, and an address scrambling circuit that processes an input address signal and that selects a block to be operated. | 06-06-2013 |
20150155027 | SEMICONDUCTOR MEMORY APPARATUS - A semiconductor memory apparatus includes a memory block to include memory cells to hold data; a precharge control unit to control precharging the memory cells; a row decoder to output a row selection signal identifying a row address of the memory cells; an integral circuit to integrate a signal level of the row selection signal for a same row address, and to have an integral characteristic where an integral value of the signal level becomes a predetermined value when the row selection signal for the same row address is consecutively output for a predetermined number of times; and a determination unit to determine whether the integral value of the integral circuit becomes the predetermined value or greater. The precharge control unit turns off precharging the memory cells when the integral value of the integral circuit becomes the predetermined value or greater. | 06-04-2015 |
20150199246 | MEMORY DEVICE, STORAGE METHOD AND CONTROL DEVICE - A memory device includes a storage unit in which a plurality of semiconductor chips each comprising a plurality of memory blocks respectively arranged in a planar direction and a plurality of redundant blocks respectively arranged in a planar direction are stacked, a detecting unit configured to detect a defect of each of the memory blocks in the storage unit; a checking unit configured to check free capacity in each of the redundant blocks in the storage unit, and a determining unit configured to determine a substitute block to be substituted for the memory block in which the defect has been detected from the redundant blocks having the free capacity. | 07-16-2015 |
Patent application number | Description | Published |
20100225659 | DISPLAY CONTROL DEVICE, DISPLAY CONTROL PROGRAM AND METHOD - A display control device includes a memory that stores display data to be displayed on a display section, an operation section that specifies a display area of the display section where the display data is displayed, an address setting section that sets a setting address value with respect to a memory address of the display data stored in the memory, an address specifying section that specifies a read start address value of the display area with respect to the memory address based on a first operation amount of the operation section, and a specified address changing section that changes, when the read start address value is equal to the setting address value, the read start address value to a different address value. | 09-09-2010 |
20110217956 | ELECTRONIC APPARATUS, SCREEN INFORMATION OUTPUT METHOD AND COMPUTER-READABLE STORAGE MEDIUM - An electronic apparatus has a storage part to store a plurality of screen information, including incoming call screen information, a display part to display the screen information, and an output control part to output to an outside of the electronic apparatus arbitrary screen information that is to be output to the outside, of the screen information stored in the storage part, and to display the arbitrary screen information on the display part, when an external output function is set to an ON state. The output control part continues outputting the arbitrary screen information to the outside and displays on the display part the incoming screen information stored in the storage part, when an incoming call is received in a state where the external output function is set to the ON state. | 09-08-2011 |
20120058799 | WIRELESS COMMUNICATION DEVICE, TRANSMISSION POWER CONTROL METHOD, AND COMMUNICATION QUALITY TRANSMISSION METHOD - A communication quality receiver of a transmitting-side wireless communication device receives information about antenna communication qualities of respective transmitting-side antennas from a receiving-side wireless communication device that has received data. A transmission power controller controls transmission powers of the respective transmitting-side antennas in accordance with the received antenna communication qualities. A communication quality calculator of the receiving-side wireless communication device calculates, based on a pilot signal included in the data received by receiving-side antennas, the antenna communication qualities of the respective transmitting-side antennas of the transmitting-side wireless communication device that has transmitted the data. A communication quality transmitter transmits information about the calculated antenna communication qualities of the respective transmitting-side antennas to the transmitting-side wireless communication device. | 03-08-2012 |
20130029730 | MOBILE ELECTRONIC APPARATUS, DANGER NOTIFYING METHOD, AND MEDIUM FOR STORING PROGRAM - A mobile electronic apparatus includes a memory that stores a search range of an object and a processor that executes a process. The process includes acquiring a moving speed of the mobile electronic apparatus, determining the search range of the object on a basis of the moving speed, detecting the object existing within the search range, detecting whether a display unit of the mobile electronic apparatus is in an active state, and notifying that the object is detected when the display unit is detected to be in the active state and the object existing within the search range is detected. | 01-31-2013 |