Abstract:
A current drive circuit allows for a reduction in chip size and prevents an output current from decreasing. The current drive circuit has an output terminal connected to a first resistor. The first resistor is connected to a second resistor and the drain of a first transistor. The gate of the first transistor is connected to the gate of a second transistor, a grounded first current source, and the source of a third transistor. A second current source and the third transistor are connected to a power supply line. The second current source is connected to the gate of the third transistor, the drain of a fourth transistor, the drain of a fifth transistor, and a second resistor. When the voltage decreases, the on resistance of the fourth transistor increases, the fifth transistor is then connected in series to the second transistor, which increases the gate voltage of the first transistor.
Abstract:
A current drive circuit allows for a reduction in chip size and prevents an output current from decreasing. The current drive circuit has an output terminal connected to a first resistor. The first resistor is connected to a second resistor and the drain of a first transistor. The gate of the first transistor is connected to the gate of a second transistor, a grounded first current source, and the source of a third transistor. A second current source and the third transistor are connected to a power supply line. The second current source is connected to the gate of the third transistor, the drain of a fourth transistor, the drain of a fifth transistor, and a second resistor. When the voltage decreases, the on resistance of the fourth transistor increases, the fifth transistor is then connected in series to the second transistor, which increases the gate voltage of the first transistor.
Abstract:
Provided is a storage system including: a nonvolatile memory which stores and erases data for respective blocks; and a controller for inputting and outputting the data to and from the nonvolatile memory, wherein: the storage system has a storage area including: a rewritable area where a stored data can be erased; and a write-once area where the stored data cannot be erased; and the controller determines a block belonging to the rewritable area based on an attribute of the block, and performs a wear leveling process and a reclamation process only on the block determined as belonging to the rewritable area.
Abstract:
When a file server is to create data that does not permit falsification in an external storage, it is not possible to guarantee that the rewriting of this data can be prevented from a computer connected to the external storage without going through a file server. Provided is a storage system configured from a first storage having a file I/O processing unit and a second storage connected to this first storage, wherein the first storage includes a unit for requesting a change of access authority to the storage area in the own storage and in the second storage provided to the own storage. An access request to a storage area in a second storage from a computer connected to a second storage without going through a file I/O processing unit is restricted based on the change of access authority executed by the second storage upon receiving the request from the first storage.
Abstract:
An ankle length sock having an opening welt positioned in the vicinity of an ankle of a wearer, and having an elastic welt provided at the opening welt is provided. The sock may include a compression area with high elasticity and high compressive force disposed laterally in a diagonal direction in an area extending from behind an arch portion to an Achilles tendon portion above a heel portion. A size control course with a knitted fabric increased by 4-20 courses may be disposed between the compression area and the heel portion. An additional pocket may be interknit with 2-24 courses by reverse knitting, repeatedly alternating normal rotation and reverse rotation of the circular knitting machine cylinder, at a position on the sole portion side between the size control course and the compression area.
Abstract:
Provided is a technique for X-ray reflection, such as an X-ray reflecting mirror, capable of achieving a high degree of smoothness of a reflecting surface, high focusing (reflecting) performance, stability in a curved surface shape, and a reduction in overall weight. A silicon plate (silicon wafer) is subjected to thermal plastic deformation to form an X-ray reflecting mirror having a reflecting surface with a stable curved surface shape. The silicon wafer can be deformed to any shape by applying a pressure thereto in a hydrogen atmosphere at a high temperature of about 1300° C. The silicon plate may be simultaneously subjected to hydrogen annealing to further reduce roughness of a silicon surface to thereby provide enhanced reflectance.
Abstract:
A resistor testing circuit for a battery charger that tests divisional resistors used to estimate the resistance of a thermistor in a battery pack. The battery charger when activated conducts a self test. In the self test, switches are sequentially switched to form groups of resistors and test the connection state of the resistors groups. When a defect is detected by the self test, the battery charger stops performing charging. When no defects are detected by the self test, the thermistor of the battery pack is used to estimate temperature. The charging current is determined in correspondence with the temperature. Then, charging is started.
Abstract:
The version management method according to the present invention by a computer system comprises a repository server 2 and a user terminal 1. The repository server 2 executes a procedure that the file to be updated within the user repository 26 are updated by the user terminal 1, a procedure that the files to be updated within the user repository 26 are updated so as to write the files to be updated on the system repository 22, and a procedure that the file to be updated within the system repository 22 are read by the arbitrary user terminal 1.
Abstract:
The present invention provides a porphyrin compound containing a biotinyl group represented by Formula (I): Por-A-Bi wherein Por represents a porphyrin residue optionally forming a metal complex; Bi represents an optionally substituted biotinyl group; and A represents a C1-C20 hydrocarbyl group, or a heterohydrocarbyl group having 1-5 heteroatoms selected from a group consisting of oxygen, sulfur, and nitrogen, and having 1-20 atoms in total; a method for purifying hemoprotein which use the porphyrin compound; a hemoprotein labeling reagent; a diagnostic agent for hemoprotein associated diseases which use the porphyrin compound; and a therapeutic agent for photodynamic therapy.
Abstract:
Provided is a technique for X-ray reflection, such as an X-ray reflecting mirror, capable of achieving a high degree of smoothness of a reflecting surface, high focusing (reflecting) performance, stability in a curved surface shape, and a reduction in overall weight. A silicon plate (silicon wafer) is subjected to thermal plastic deformation to form an X-ray reflecting mirror having a reflecting surface with a stable curved surface shape. The silicon wafer can be deformed to any shape by applying a pressure thereto in a hydrogen atmosphere at a high temperature of about 1300° C. The silicon plate may be simultaneously subjected to hydrogen annealing to further reduce roughness of a silicon surface to thereby provide enhanced reflectance.