Patent application number | Description | Published |
20080229106 | Information processing apparatus and data transmission method of information processing apparatus - An apparatus stores first divided trust information which is one portion resulting from division of trust information generated by a transmission target apparatus that is a transmission target for data, receives a transmission request for the data from the target apparatus and receives second divided trust information which is the other portion resulting from division of the trust information of the target apparatus and verification information generated using information indicating a state of the target apparatus that made the request, recovers the trust information using the first divided trust information stored and the received second divided trust information, verifies trustworthiness of the target apparatus using the recovered trust information and the received verification information, transmits the data indicated by the request to the target apparatus when the verification of trustworthiness is successful. | 09-18-2008 |
20090002569 | Information processing apparatus, information processing system, and controlling method of information processing apparatus - There is provided an information processing apparatus in which a great number of users can use thin clients, and in which various services such as simultaneous picture distribution are realized in an integrated manner, an information processing system, and a controlling method of the information processing apparatus. The apparatus capable of executing plural OSs includes image transmitting devices having: a GPU for receiving a drawing instruction signal of a screen output from the OS and generating an image signal of a display screen; and a communicator for transmitting the image signal of the display screen to a terminal that operates as a thin client. The devices compressively code the image signal to a digital motion picture by a coding unit as necessary. Then, the devices transmit the coded signal from the communicator. The apparatus dynamically assigns the devices to the OSs corresponding to the respective terminals via VMM. | 01-01-2009 |
20100023940 | VIRTUAL MACHINE SYSTEM - A virtual machine system includes a virtual battery manager, a discharge calculator, and a discharger. The virtual battery manager manages a virtual battery for running a virtual machine. The virtual battery holds electric energy used by the virtual machine. The virtual battery is capable of discharging and being charged. The discharge calculator calculates a discharged amount of the virtual battery by calculating energy consumption of the virtual machine with reference to a consumption policy and a consumption allocation table when a resource quota for the virtual machine satisfies a predefined condition for discharging. The consumption policy defines a maximum amount of total energy consumption of the plurality of virtual machines. The consumption allocation table contains an allocated ratio of energy consumption for each of the plurality of virtual machines. The discharger decreases a battery level of the virtual battery. | 01-28-2010 |
20100023941 | VIRTUAL MACHINE MONITOR - A mapping data generator determines a virtual page number of a virtual page where an executable code in an object file is mapped. A virtual page manager manages a virtual page record containing the virtual page number, a first object ID corresponding to the virtual page number, and a detection flag indicative of existence of another virtual page record containing a second object ID identical with the first object ID. A machine page manager manages a machine page record containing the first object ID, and a machine page number to which the virtual page number is mapped. A sharable page detector determines whether a detection flag indicates existence of another virtual page record containing the first object ID and determines whether a machine page number has been set. A page mapper maps a set machine page number to the virtual page number of the access page. | 01-28-2010 |
20100235835 | VIRTUAL MACHINE CONTROL APPARATUS, VIRTUAL MACHINE CONTROL METHOD, AND RECORDING MEDIUM THEREFOR - A virtual machine control apparatus that controls operations of a plurality of virtual machines, the virtual machine control apparatus includes a storing part that stores information in a memory used by an application program in a storage unit different from the memory, in association with a virtual machine subject to a suspending command, when the suspending command for the virtual machine in operation; and a selecting part that selects an application program to be preferentially resumed from the storage unit to the memory use area based on the information in the memory used by the application program which is stored in association with the virtual machine subject to the activating command, when the activating command for the virtual machine is accepted. | 09-16-2010 |
20100251254 | INFORMATION PROCESSING APPARATUS, STORAGE MEDIUM, AND STATE OUTPUT METHOD - An apparatus for controlling divided operation environments includes a first acquiring unit that acquires a first processing amount indicating an amount of hardware resources allocated to each of the operation environments, a second acquiring unit that acquires a second processing amount which varies depending on an application program executed by the operation environment, a calculating unit that calculates a third processing amount of each of the operation environments on the basis of a difference between the first processing amount of each operation environment acquired by the first acquiring unit and the second processing amount of each operation environment acquired by the second acquiring unit; and an output unit that outputs a state of each of the operation environments on the basis of the third processing amount of each operation environment calculated by the calculating unit and the second processing amount of each operation environment acquired by the second acquiring unit. | 09-30-2010 |
20100281521 | AUTHENTICATION SYSTEM, AUTHENTICATION DEVICE AND RECORDING MEDIUM - An authentication system includes node devices, wherein a first node device transmits the authentication information thereof to a second node device, the second node device selects third node devices that are requested to verify the validity of the received authentication information, and transmits the authentication information to each of the selected third node devices, the third node device records verification information that is used to verify the validity of the authentication information of the first node device, verifies the validity of the authentication information on the basis of the authentication information and verification information, and transmits the result information to the second node device, and the second node device further derives weighted values indicating the reliability of the each verification of the third node devices and authenticates the first node device on the basis of the each result information and the each weighted value received from the third node devices. | 11-04-2010 |
20110238947 | Memory management apparatus, memory management method and non-transitory computer readable storage medium - A memory management apparatus has an ASID conversion table, an actual ASID use table, and a TLB flush control section. The ASID conversion table and the actual ASID use table manage virtual ASID, actual ASID and an overlap flag so that they are related for each VM. The TLB flush control section reads actual ASIDs allocated to VM as a switching target at the time of switching VM as a switching source into the VM as the switching target, determines whether the read actual ASID is allocated to the plurality of VMs in an overlapped manner with reference to the overlap flag, and sets the actual ASID in the read actual ASIDs determined being allocated in the overlapped manner as a target for the TLB flush. | 09-29-2011 |
20120011505 | Computer system and recording medium - A disclosed computer system having a virtual computer management mechanism realizing a virtual computer includes a user virtual computer that communicates with a device via a virtual computer for a device driver under a control of the virtual computer management mechanism, an input receiving unit that receives a signal of an input operation from the device, a reset level determination unit that determines a reset level based on the received signal of the input operation, a reset target specifying unit that specifies a virtual computer to be a target of a reset process based on the determined reset level, and a reset signal transmission unit that transmits a reset signal to perform the reset process on the specified virtual computer. | 01-12-2012 |
20120011506 | INFORMATION PROCESSOR, CONTROL METHOD, AND COMPUTER-READABLE RECORDING MEDIUM RECORDING CONTROL PROGRAM - A computer is provided with a measuring unit that measures elapsed time at a non-access state between one of the guest virtual machines and the devices as a non-access time with respect to each of the guest virtual machines accessing the devices via the device driver virtual machine; a storage unit that stores the operation profile information that matches the non-access time with the operation mode information representing the operation modes of the devices; a decision unit that decides the operation mode with reference to the operation profile information on the basis of the measured access time; and a transition control unit that transits the devices to the operation mode, so that this makes it possible to appropriately carry out power saving management of the devices not depending on a power saving function of the guest OS. | 01-12-2012 |
20120072669 | COMPUTER-READABLE, NON-TRANSITORY MEDIUM STORING MEMORY ACCESS CONTROL PROGRAM, MEMORY ACCESS CONTROL METHOD, AND INFORMATION PROCESSING APPARATUS - A method of causing an information processing apparatus to execute, the method including: performing a management procedure to accept addresses of respective page tables generated for each of operation modes from an operating system that manages the virtual address space and to associate the addresses with the operating system to be recorded in page table correspondence information storage; executing a control procedure to set a second access right indicating a value lower than the first access right in accordance with the operation mode of the operating system; and processing a processing procedure to cause the memory management device to execute a flush of a translation look-aside buffer, and to set the second access right indicating a value for validating the first access right, wherein the memory management device performs a control on the memory access while the second access right is prioritized over the first access right. | 03-22-2012 |
20120137292 | VIRTUAL MACHINE MIGRATING SYSTEM AND METHOD - A virtual machine migration method conducted in a virtual machine migration system that includes a virtual machine of a migration source computer and a migrating target computer. The migration source computer conducts processing to send host physical address information of an MMIO region corresponding to a device used by the virtual machine through directed I/O to a migration target computer, and to cause a connection target of the device to be switched to the migration target computer by a switching device that connects the device to the computers. The migration target computer conducts processing to allocate an MMIO region corresponding to the host physical address information sent by the migration source computer, to the device connected to the computers by the switching device. | 05-31-2012 |
20120198480 | INFORMATION PROCESSING APPARATUS, CONTROL METHOD, AND RECORDING MEDIUM OF CONTROL PROGRAM - An information processing apparatus includes a processor to execute a procedure, the procedure including executing first processing based on a first operating system and also executing second processing based on a second operating system; determining whether or not to perform a switching by the first processing based on the first operating system when input information processed into the first processing accords with a switching condition defined in the first operating system; and controlling subsequent input information to be processed into the second processing when performing the switching is determined. | 08-02-2012 |
20120239952 | INFORMATION PROCESSING APPARATUS, POWER CONTROL METHOD, AND RECORDING MEDIUM - A disclosed information processing apparatus includes a plurality of operating systems, a resource information storage part configured to store resource information including usage status information on hardware resources of the information processing apparatus, and a controller configured to specify at least one of the operating systems based on the resource information to report a resource release request of a desired one of the hardware resources to the specified operating system and receive a resource release report on the desired hardware resource from the specified operating system to control power associated with the desired hardware resource. | 09-20-2012 |
20120240112 | COMPUTER PRODUCT AND INFORMATION PROCESSING APPARATUS - A computer-readable recording medium stores therein a scheduling program that causes a computer to execute a process. The process includes executing multiple virtual computing machines that operate an OS; receiving a change in the number of activations of completely activated software from the OS; updating when the change in the number of activations has been received, a first table that stores software completely activated in the OS; selecting from a second table that stores combinations of a completely activated software group, a combination according to a software group stored in the first table; extracting from the second table and according to the selected combination, priorities of software stored for each of the combinations; and updating the priorities of the software stored in the first table to the extracted priorities. | 09-20-2012 |
20120252536 | MOBILE TERMINAL - A mobile terminal includes a display device and a processor. The processor acquires first display information about a first virtual machine. The first display information does not prompt a user operation. The processor displays the acquired first display information in a first display area on the display device. The processor acquires second display information about the first virtual machine. The second display information prompts a user operation. The processor displays the acquired second display information in a second display area on the display device. The processor determines, in response to an instruction for changing display, whether mixed display is allowed by referencing status information. The processor acquires, when the mixed display is allowed, third display information about a second virtual machine. The third display information does not prompt a user operation. The processor displays the acquired third display information in a third display area on the display device. | 10-04-2012 |
20120254866 | SYSTEM FOR MIGRATING A VIRTUAL MACHINE BETWEEN COMPUTERS - An I/O device performs data input and data output between the I/O device and first and second computers. An I/O switch relays input and output data between the I/O device and each of the first and second computers. A device emulator emulates the I/O device when a virtual machine running on the first computer and directly accessing the I/O device is migrated from the first computer to the second computer. A connection controller controls switching connection between any one of the first and second computers and any one of the I/O device and the device emulator. The first computer is connected to the I/O device and the second computer is connected to the device emulator until the virtual machine running on the first computer is stopped, and the second computer is connected to the I/O device after the virtual machine running on the first computer is stopped. | 10-04-2012 |
20120281972 | VIDEO-RECORDING RESERVATION MANAGEMENT APPARATUS, METHOD, PROGRAM, AND SYSTEM - A first video-recording reservation management apparatus which communicates with a second apparatus and can receive the same channels. The first apparatus includes a video-recording reservation processing unit which registers video-recording reservation information of the first apparatus in a storage unit and notifies the second apparatus of such registration via a network when a video-recording reservation is made with respect to the video-recording function of the first apparatus, and a substitutional video-recording reservation processing unit which acquires registered video-recording reservation information from the second apparatus and registers the information in the storage unit when such a registration notification is received from the network, and executes a substitutional video-recording reservation by using the video-recording function of the first apparatus when the video-recording reservation of the second apparatus corresponding to the substitutional video-recording reservation information is not executed when video-recording cannot be performed due to power outage or failure. | 11-08-2012 |
20130136320 | COMPUTER-READABLE RECORDING MEDIUM STORING AUTHENTICATION PROGRAM, AUTHENTICATION DEVICE, AND AUTHENTICATION METHOD - A computer-readable recording medium storing an authentication program for causing a computer to execute an authentication process, the authentication process includes: extracting a plurality of face information from an image acquired; when the plurality of face information include both first face information registered in authentication information and second face information not registered in the authentication information, registering the second face information in the authentication information; and if new face information extracted from new image is the second face information stored in the authentication information, determining that an authentication for the new face information is successful. | 05-30-2013 |
20130198250 | FILE SYSTEM AND METHOD FOR CONTROLLING FILE SYSTEM - A file system includes a plurality of storage devices to store therein data transmitted from a first node, a plurality of second nodes connected to the first node through a first network, a second network, and a third node. The second network connects each of the plurality of second nodes with at least one of the plurality of storage devices. The second network is different from the first network. The third node manages a location of data, and notifies, in response to an inquiry from the first node, the first node of a location of data specified by the first node. Each of the plurality of second nodes writes, through the second network, same data into a predetermined number of storage devices from among the plurality of storage devices in response to an instruction from the first node. | 08-01-2013 |
20140298444 | SYSTEM AND METHOD FOR CONTROLLING ACCESS TO A DEVICE ALLOCATED TO A LOGICAL INFORMATION PROCESSING DEVICE - A logical information-processing device is allocated based on a request from a terminal device. In an information-processing device, one of plural storage devices is connected to one of plural processing devices each including a managing unit. First correspondence information stores physical identification information identifying the information-processing device in association with address information of the managing unit. Second correspondence information stores the physical identification information in association with logical identification information identifying the logical information-processing device. A managing device obtains address information of the managing unit of the information-processing device corresponding to the logical information-processing device allocated to the terminal device, by using the physical identification information obtained, based on the logical identification information included in the request, from the second correspondence information. A proxy device accesses the managing unit of the corresponding information-processing device based on the address information obtained by the managing device. | 10-02-2014 |
20140359210 | APPARATUS AND METHOD FOR CONTROLLING ACCESS TO A DISK APPARATUS IN AN INFORMATION PROCESSING SYSTEM - An information processing apparatus including plural operation processing apparatuses and plural disk apparatuses, which are connected to each other via a switch. A management apparatus provides, in response to a loan request from a terminal, a first operation resource and a first storage resource of a first processing apparatus in which a first operation processing apparatus and a first disk apparatus are connected with each other through the switch, to the terminal through a network. The management apparatus releases the connection between the first operation processing apparatus and the first disk apparatus through the switch in response to a return request from the terminal and provides the first storage resource and a second operation resource of a second processing apparatus in which a second operation processing apparatus and the first disk apparatus are connected with each other through the switch, to the terminal through the network. | 12-04-2014 |
Patent application number | Description | Published |
20080238773 | Directivity control apparatus of array antenna and directivity controlling method - An array antenna directivity control apparatus includes: weighting coefficient updator which updates a weighting coefficient based on an error between antenna signals of multiple antennas and a known reference signal; and update amount corrector which corrects an amount of updating for each of the weighting coefficients, which updating is performed by said weighting coefficient updator, based on predict error information predicted on the basis of the error in past. As a result, it is possible to adjust a weighting coefficient with prediction of the next position of a target. Thus, it becomes possible to track a target which is being moving in high speed with a small amount of calculation. | 10-02-2008 |
20090016291 | Base station apparatus, mobile station apparatus, and method of assigning subscarriers - A base station assigns a subcarrier for downlink communications under Orthogonal Frequency Division Multiple Access. Before downlink communications with a mobile station, based on carrier sensing by the mobile station, the base station detects information concerning an available subcarrier from downlink signals using a modulating unit. The information concerning the available subcarrier is stored in a downlink-information sharing unit and is shared among the base station and the adjacent base stations. A downlink subcarrier setting unit sets the available subcarrier for downlink communications. | 01-15-2009 |
20090219977 | RADIO COMMUNICATION APPARATUS - A radio communication apparatus includes a mapping unit configured to map data to a burst data transmission region corresponding to radio resources; and a transmitter configured to transmit the data mapped to the burst data transmission region, where a reference signal used for canceling an interference wave is mapped to the data transmission region. | 09-03-2009 |
20100001904 | RADIO COMMUNICATION APPARATUS AND SYSTEM - A radio communication apparatus includes a vertical polarization antenna, a horizontal polarization antenna, a receiving-side phase rotation unit configured to rotate a phase of a signal received by the vertical polarization antenna and a phase of a signal received by the horizontal polarization antenna, and a maximum power detector configured to determine a phase associated with a maximum power of the two received signals and to provide the receiving-side phase rotation unit with the phase associated with the maximum power. The receiving-side phase rotation unit rotates the phase of the two received signals by the phase associated with the maximum power. | 01-07-2010 |
20100035566 | Transmission Device, And Array Antenna Control Method And Device - For transmitting a common channel signal with characteristics with an approximated non-directivity, the common channel signal for all users is divided into sub-channel signals, corresponding to a number of antenna elements composing an array antenna, to be concurrently transmitted with non-directivity by using each antenna element. Individual channel signals, for each user, following the common channel signal with a desired directivity by using the antenna elements. Each sub-channel signal can be made a sub-channel signal obtained by dividing all sub-channel components composing the common channel signal for each sub-channel component by a predetermined number or dividing them depending on a receiving quality of each antenna element. | 02-11-2010 |
20100322183 | WIRELESS COMMUNICATION SYSTEM, TERMINAL DEVICE, AND WIRELESS COMMUNICATION METHOD IN WIRELESS COMMUNICATION SYSTEM - A wireless communication system including: a first terminal device; and a second terminal device, wherein wireless communication is performed between the first and second terminal devices, the first and second terminal devices each include a processing unit performs wireless communication with the second and first terminal device respectively, using a wireless resource allocated within a first or second zone in accordance with a distance between the first and second terminal devices, and a wireless frame including a frequency domain and a time domain is divided into at least the first and second zones in the frequency domain or the time domain. | 12-23-2010 |
20110111762 | RADIO COMMUNICATION SYSTEM, TERMINAL APPARATUS, AND RADIO COMMUNICATION METHOD IN RADIO COMMUNICATION SYSTEM - A radio communication system including a first terminal apparatus group for performing a reception by using a first radio resource and a transmission by using a second radio resource; and a second terminal apparatus group for performing the reception by using the second radio resource and the transmission by using the first radio resource, and a directly radio communication is performed, the system including: a first terminal which belongs to the first terminal apparatus group and transmits allocation request of transmission band in the second radio resource by using the second radio resource; and a second terminal which belongs to the second terminal apparatus group, receives the allocation request transmitted from the first terminal, and transmits information indicating allocation of the transmission band for the first terminal, wherein the first terminal transmits data by using the allocated transmission band in the second radio resource. | 05-12-2011 |
20110200089 | RECEIVER - A receiver receives a reception signal subjected to orthogonal frequency division multiplexing modulation or orthogonal frequency division multiple access modulation. The receiver has: an array antenna for receiving the reception signal; adaptive equalizers provided in each of the plurality of antennas, and reducing advanced or delayed waves having a delay time to a main wave in the reception signal; a spatial diversity combining portion which multiplies output signals of the adaptive equalizers by a weighting coefficient and adds the multiplied signals; a weight control portion generating the weighting coefficient; and an equalizer setting unit which estimates an arrival angle and a delay time for each path of the reception signal, and based on the estimation, decides an interference wave to be eliminated by the adaptive equalizers among interference waves, and sets in the adaptive equalizers the delay time of the decided interference wave. | 08-18-2011 |
20120081178 | POWER AMPLIFICATION DEVICE AND METHOD FOR ACQUIRING POWER ADJUSTING COEFFICIENT - An embodiment of the invention discloses a power amplification device and method and a method for acquiring a power adjusting coefficient. The power amplification device according to one embodiment of the invention includes: a power control module configured to perform power adjusting on an input signal; a power amplification module configured to perform power amplification on the signal subjected to the power adjusting by the power control module; and a pre-distortion module configured to compensate for nonlinear characteristic of the power amplification module; wherein, said power control module is coupled between said pre-distortion module and said power amplification module in series; alternatively, said pre-distortion module is coupled between said power control module and said power amplification module in series. With the embodiment of the invention, a transmitter can be provided with a spectrum including a low side lobe even upon startup. | 04-05-2012 |
20120134336 | MOBILE STATION COMMUNICATION DEVICE, INTER-MOBILE STATION COMMUNICATION SYSTEM, AND INTER-MOBILE STATION COMMUNICATION METHOD - A communication device is used by a mobile station to perform wireless communication with another mobile station. The communication device includes a processor configured to set a transmission resource according to a present position of the mobile station, the transmission resource being set based on transmission resource association information including different transmission resources assigned to plural assignment areas provided at different positions along a road through which the mobile station passes; and a transmitter configured to transmit data with the use of the transmission resource that has been set. | 05-31-2012 |