| Patent application number | Description | Published |
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| 20100049691 | DATA STORAGE APPARATUS - An apparatus for storing data, the apparatus connectable to another apparatus via a plurality of paths over a network, includes: a plurality of ports each of which is connectable to one end of each of the paths; a memory for storing information of the plurality of paths to the another apparatus; and a processor for executing a process including: monitoring throughput of each of the plurality of paths by receiving a message from the another apparatus indicative of an amount of data successfully received at an interval, determining at least one of the ports for transmitting data on the basis of the monitored throughput, and transmitting data from the determined port to the another apparatus. | 02-25-2010 |
| 20100299491 | STORAGE APPARATUS AND DATA COPY METHOD - A storage apparatus connectable to another storage apparatus so as to copy the data thereto, for providing a first virtual volume including at least a first block, includes at least a storage unit having storage areas, each storage area being allocatable as a one of the first blocks; a memory storing information for indicating a relationship between each first block and each the storage area, at least one of the storage areas being allocated to the at least one of the first blocks according to a usage pattern of the first virtual volume; and a controller configured to receive an instruction for copying data, determine whether each first block is allocated to any of the storage areas or not in reference to the information, transmit data indicating that one of the first blocks is unallocated to any of the first storage areas on the basis of the determination. | 11-25-2010 |
| 20110246736 | BACKUP APPARATUS, BACKUP METHOD AND COMPUTER READABLE RECORDING MEDIUM IN OR ON WHICH BACKUP PROGRAM IS RECORDED - Upon production of a backup of a first generation, all of an operation volume is stored. However, upon production of a backup of a second or later generation, an update situation of the operation volume is confirmed, and a physical region of a capacity corresponding to a capacity of an update region of the operation volume is secured. Then, only data of the update region is stored into the secured physical region. | 10-06-2011 |
| Patent application number | Description | Published |
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| 20090088976 | AZIMUTH DETECTING DEVICE AND AZIMUTH DETECTING METHOD - An azimuth detecting device mounted in a mobile object and having: a geomagnetic sensor; GPS signal receiving means; and measuring means for measuring a position of the mobile object by using a GPS signal, the azimuth detecting device being characterized in calculating a gain correction amount by means of a method of least squares, using an output value of the geomagnetic sensor when a level of the GPS signal received by the GPS signal receiving means is lower than a predetermined level, and calculating a declination correction amount and/or an inclination correction amount on the basis of information obtained from the GPS signal and correcting the output value of the geomagnetic sensor, when the level of the GPS signal is at least the predetermined level. | 04-02-2009 |
| 20100007550 | Positioning apparatus for a mobile object - A positioning apparatus for a mobile object for measuring a position at a current time includes a GPS positioning unit for updating a GPS operation data; an INS positioning unit with a detection value for INS positioning; a speed detector for detecting speed; an error corrector for correcting an error of the detection value, the position measured by the INS positioning and the speed; and a mobile object model operation unit for calculating a mobile object model; wherein an initial position is calculated using the GPS operation data, and the mobile object model operation unit measures the position to the current time when the current time coincides with a GPS updating time; and wherein the initial position is calculated without the GPS operation data, and the mobile object model operation unit measures the position to the current time when the current time does not coincide with a GPS updating time. | 01-14-2010 |
| 20120004843 | AZIMUTH DETECTING DEVICE AND AZIMUTH DETECTING METHOD - An azimuth detecting device mounted in a mobile object and having: a geomagnetic sensor; GPS signal receiving means; and measuring means for measuring a position of the mobile object by using a GPS signal, the azimuth detecting device being characterized in calculating a gain correction amount by means of a method of least squares, using an output value of the geomagnetic sensor when a level of the GPS signal received by the GPS signal receiving means is lower than a predetermined level, and calculating a declination correction amount and/or an inclination correction amount on the basis of information obtained from the GPS signal and correcting the output value of the geomagnetic sensor, when the level of the GPS signal is at least the predetermined level. | 01-05-2012 |
