| HITACHI COMPUTER PERIPHERALS CO., LTD. Patent applications |
| Patent application number | Title | Published |
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| 20110320707 | STORAGE APPARATUS AND STORAGE MANAGEMENT METHOD - The performance to transfer data to external storage media in thin provisioning is enhanced. | 12-29-2011 |
| 20110267042 | MOTOR FUNCTION ANALYZING APPARATUS - It is an object of the present invention to provide a motor function analyzing apparatus which simplifies a calibration measurement necessary before measuring a finger tapping motion, and which is capable of evaluating a motor function highly precisely. The present invention provides a motor function analyzing apparatus which simplifies a calibration measurement necessary before measuring a finger tapping motion, and which is capable of evaluating a motor function highly precisely by using a calibration point unique to each apparatus and a calibration point unique to each subject. | 11-03-2011 |
| 20110230789 | SENSOR FOR MEASURING MOTOR FUNCTION, A PLASTIC BAND, AND A DEVICE FOR MEASURING MOTOR FUNCTION - This invention provides a sensor or its related art to be easily used for measuring motor function of living body. This invention relates to a sensor for measuring motor function, which includes a magnetic field generator attached to one of two predetermined positions in a living body changing mutual distance caused by an action of the living body to have a coil board generating a magnetic field by electrification, and a magnetic field detector attached to the other of the two predetermined positions in the living body to detect the magnetic field generated by the magnetic field generator and have the coil board generating an electric current having a magnitude corresponding to a strength of the magnetic field as detected. Furthermore, each of the magnetic field generator and the magnetic field detector is provided with plastics covering a whole coil board thereof. | 09-22-2011 |
| 20110227546 | DC-DC CONVERTER - To eliminate the problem that a magnetic deflection is caused in a transformer even when a coupled inductor converter is in a stationary operation state, provided is a DC-DC converter including a first series circuit portion formed by a first switching transistor, a first capacitor, a first inductor, and a second capacitor which are connected to a DC power in series in this order, and a second series circuit portion formed by a second switching transistor and a second inductor which are connected in series in this order, the second series circuit portion is connected in parallel to the first capacitor and the first inductor, and the first inductor and the second inductor constitute a coupled inductor having a plurality of windings and a common magnetic core. | 09-22-2011 |
| 20110145528 | STORAGE APPARATUS AND ITS CONTROL METHOD - Proposed are a storage apparatus and its control method capable of restoring data of a virtual page to an appropriate device hierarchy according to its data value. This storage apparatus stores, in a backup-destination storage medium, data stored in the respective physical pages allocated with the virtual volume and management information of the virtual volume including information concerning the device hierarchy to which the respective physical pages belong according to a backup command of the virtual volume, and allocates a physical page of the same device hierarchy as the device hierarchy of the physical page that was allocated before the backup to each of the restoration-target virtual pages of the virtual volume, respectively, and writes corresponding data, which was read from the storage medium, into each of the allocated physical pages according to a restoration command of the virtual volume and based on the management information of the virtual volume stored in the storage medium. | 06-16-2011 |
| 20110140007 | SEMICONDUCTOR MANUFACTURING APPARATUS - To project a rectangular laser spot having a predetermined size and a high laser power density onto the surface of an object, a semiconductor manufacturing apparatus comprises a control unit for controlling power of a laser light source, an optical waveguide unit ( | 06-16-2011 |
| 20110096576 | POWER FACTOR CORRECTION DEVICE AND CONTROL METHOD THEREOF - Proposed are a power factor correction device and its control method capable of obtaining a stable output as the output of a power supply unit while simplifying and miniaturizing the configuration. In the power factor correction device and the control method thereof including a coil and a switching element, and a control unit for controlling ON/OFF of the switching element, provided are an input voltage detection unit for detecting an input voltage of the power factor correction device, an output voltage detection unit for detecting an output voltage, and a coil current detection unit for detecting a coil current that is generated in the coil pursuant to the ON/OFF operation of the switching element. The control unit predicts an OFF time of the switching element of each switching cycle for controlling the switching element in a critical mode based on a voltage value of the input voltage detected with the input voltage detection unit, a voltage value of the output voltage detected with the output voltage detection unit, and a current value of the coil current detected with the coil current detection unit, and controls the ON/OFF of the switching element based on the prediction result. | 04-28-2011 |
| 20110082834 | Storage control device to backup data stored in virtual volume - A storage control device uses write management information that manages locations of the occurrence of writing in one or more first storage devices in order to specify one or more locations where writing has occurred, and backs up one or more data elements stored in one or more specified locations to a second storage device. In order to perform a restore operation, write management information at the time of a backup is stored, and data elements stored in the second storage device are restored to one or more locations specified from the write management information at that time of backup, or to one or more new locations specified from new write management information indicating one or more new locations corresponding to the one or more locations. | 04-07-2011 |
| 20110054361 | MOTOR FUNCTION ESTIMATING SYSTEM, MOTOR FUNCTION ESTIMATING METHOD AND PROGRAM - The motor function estimating system | 03-03-2011 |
| 20100293150 | Storage apparatus, data restoration method and computer system - An LU management table | 11-18-2010 |
| 20100142070 | Storage system and operation method thereof - Aiming to suitably balance, when backing up data to a magnetic tape, search time and writing/reading performance depending on the purpose of the backup, provided is a disk array apparatus including a disk device having hard disks, a magnetic tape device including a magnetic tape to which data to be backed up is written, and a control unit performing writing and reading processings of data between the disk device and the magnetic tape device. The control unit includes an FM (file mark) interval managing unit which receives a purpose of use when backing up the data on the magnetic tape, and from FM intervals which is held in association with the purpose of use thus received and which indicates an interval of recording FMs on the magnetic tape, acquires an FM interval corresponding to the purpose of use thus received, and transmits the acquired FM interval to the control unit. | 06-10-2010 |
| 20090202080 | Method and system for managing encryption key - Conventionally, an encryption key for encrypting data to be backed up in a tape cannot be allocated for each logical data management unit. To solve the problem, provided is a storage system including: a disk storage device; a tape storage device in which a tape storage medium is loaded; and a controller for controlling the disk storage device and the tape storage device, in which the controller is configured to: generate, upon reception of a request for setting a tape group including one or more tape storage media, a first encryption key used for encrypting data stored in the tape group set by the request; and hold information for correlating the generated first encryption key with the tape group. | 08-13-2009 |
| 20090199016 | Storage system, and encryption key management method and encryption key management program thereof - A user no longer needs to restore key information upon restoring data. Proposed is a storage system having a storage apparatus, a tape library apparatus for backing up data stored in the storage apparatus, and a management terminal for managing the storage apparatus and the tape library apparatus. The management terminal identifies a key of a tape to be restored and restores a management Information file based an a tape management file, a tape group information file and a key information file upon restoring data stored in the tape in the tape library apparatus, and commands the restoration of the tape based on the restored management information file. | 08-06-2009 |
| 20090100223 | Storage control apparatus, data archive method for storage control apparatus, and storage system - The storage control apparatus of the present invention efficiently shifts data which are stored in a virtual volume from a random access-type storage device to a sequential access-type storage device. The virtual volume is constituted by a plurality of pages. Each page is associated with either a segment of a disk device or a segment of a tape device. Data which have not been accessed by the host are collected in page units in a spare disk device for data migration. The data are copied from the migration source disk device to the migration destination tape device. The segment assignment destination of the page of the virtual volume is changed from a segment in the disk device to a segment in the tape device. | 04-16-2009 |
| 20090077311 | Storage control method and system for performing backup and/or restoration - A second storage system (SS | 03-19-2009 |
| 20090070385 | Storage apparatus, data restoration method and computer system - An LU management table | 03-12-2009 |
| 20080270643 | TRANSFER SYSTEM, INITIATOR DEVICE, AND DATA TRANSFER METHOD - An object of the invention is to provide a transfer system, initiator device, and data transfer method that can improve data transfer-related performance by fully utilizing a high-speed interface even when transferring data between devices that execute data processing at different speed. | 10-30-2008 |
