Patent application number | Description | Published |
20140176037 | CONTROL UNIT OF ACTUATOR - A control unit is configured to control driving of an actuator using an output of a rotary encoder having a rotator with a pattern row. The control unit includes a memory configured to store correcting information used to correct an arrangement error of the pattern row, and a controller configured to correct an output of the rotary encoder using the correcting information stored in the memory and to control driving of the actuator based on a corrected output of the rotary encoder. | 06-26-2014 |
20140368676 | DRIVE CONTROL APPARATUS AND DRIVE CONTROL METHOD - A drive control apparatus includes a stepping motor, a position detection unit configured to detect a rotational position of a rotor of the stepping motor, a feedback drive unit configured to drive the stepping motor by a feedback control based on an output from the position detection unit, an open loop drive unit configured to drive the stepping motor by an open loop control, and a switching unit configured to switch the driving of the stepping motor between the driving of the stepping motor by the feedback control and the driving of the stepping motor by the open loop control, wherein the feedback drive unit and the open loop drive unit are both configured to drive the stepping motor by microstep driving. | 12-18-2014 |
20150022130 | MOTOR CONTROL APPARATUS, MOTOR-DRIVEN APPARATUS, METHOD OF CONTROLLING MOTOR AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM STORING A COMPUTER PROGRAM - The motor control apparatus controlling rotation of a brushless motor includes a controller to control an angular velocity of the motor, and a load torque calculator to calculate a load torque at which the motor drives a driven member, by using a detection signal output from a rotation detector to output the detection signal in response to the rotation of the motor. When the motor drives the driven member toward a target stop position, the controller calculates a deceleration rotation amount, which is a remaining rotation amount of the motor at start of deceleration of the motor from its drive state that is one of an acceleration state and a constant velocity state, and controls the angular velocity of the motor on a basis of the deceleration rotation amount. The controller calculates the deceleration rotation amount by using the load torque calculated in the drive state. | 01-22-2015 |
20150022911 | ROTATION DETECTION APPARATUS, MOTOR CONTROL APPARATUS, MOTOR DRIVEN APPARATUS, METHOD OF CORRECTING ROTATION DETECTION APPARATUS, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING CORRECTION PROGRAM - The rotation detection apparatus includes a rotatable member rotatable with rotation of a motor and having multiple pattern element portions in its rotational direction, a signal outputter to output a detection signal changing in response to rotation of the pattern element portions, and a memory storing correction values each provided for each of the pattern element portions and used to perform correction of an error in a relation between rotational positions of the rotatable member and the change of the detection signal. A corrector performs the correction with reference to a reference position of the rotatable member in an origin state where a driven member driven by the motor is located at its origin position and by using each of the correction values for each change of the detection signal when the rotatable member is rotated from the reference position. | 01-22-2015 |
Patent application number | Description | Published |
20110163306 | RADIATION DETECTOR - A radiation detector of this invention has a curable synthetic resin film covering exposed surfaces of a radiation sensitive semiconductor layer, a carrier selective high resistance film and a common electrode, in which a material allowing no chloride to mix in is used in a manufacturing process of the curable synthetic resin film. This prevents pinholes and voids from being formed by chlorine ions in the carrier selective high resistance film and semiconductor layer. Also a protective film which does not transmit ionic materials may be provided between the exposed surface of the common electrode and the curable synthetic resin film, thereby to prevent the carrier selective high resistance film from being corroded by chlorine ions included in the curable synthetic resin film, and to prevent an increase of dark current flowing through the semiconductor layer. | 07-07-2011 |
20110199523 | IMAGING DEVICE - Conventional reset ability is fixed of resetting an amplifier in a charge-to-voltage conversion amplifier. According to an imaging device of this invention, reset ability may be switched. For this purpose, a reset ability-switching function is provided for switching power consumption of the amplifier as reset ability of resetting an amplifier in the charge-to-voltage conversion amplifier, which may realize free switching of the power consumption as the reset ability and adaptability to various types of charge-to-voltage conversion. Accordingly, heat generation may be suppressed by switching power consumption to the lower one in the case where heat generation possibly increases. | 08-18-2011 |
20120093290 | RADIATION DETECTOR MANUFACTURING METHOD, A RADIATION DETECTOR, AND A RADIOGRAPHIC APPARATUS - According to a radiation detector manufacturing method, a radiation detector and a radiographic apparatus of this invention, Cl-doped CdZnTe is employed for a conversion layer, with Cl concentration set to 1 ppm wt to 3 ppm wt inclusive, and Zn concentration set to 1 mol % to 5 mol % inclusive. This can form the conversion layer optimal for the radiation detector. Consequently, the radiation detector manufacturing method, the radiation detector and the radiographic apparatus can be provided which can protect the defect level of crystal grain boundaries by Cl doping in a proper concentration, and can further maintain integral sensitivity to radiation, while reducing leakage current, by Zn doping in a proper concentration. | 04-19-2012 |
Patent application number | Description | Published |
20100243893 | LIGHT OR RADIATION DETECTOR AND METHOD OF MANUFACTURING THE SAME - In the light or radiation detector of this invention, each of the molding structure, the first member, and the second member is formed such that the molding structure to protect the conversion layer and voltage application electrode has the resistance higher than the first member composed of the planar conductive buffer that is laminated on the (light or radiation) incident surface side of the molding structure, and that the first member mentioned above has the resistance higher than the second member composed of the planar conductive member that is laminated on the incident surface side of the first member. Consequently, occurrence of the noise from the static electricity may be suppressed. | 09-30-2010 |
20110315978 | RADIATION DETECTOR, AND A RADIOGRAPHIC APPARATUS HAVING THE SAME - The construction of this invention includes an active matrix substrate, an amorphous selenium layer, a high resistance layer, a gold electrode layer, an insulating layer and an auxiliary plate laminated in this order. In one aspect of the present invention, the insulating layer has an inorganic anion exchanger added thereto in order to provide a radiation detector which prevents void formation and pinhole formation in the amorphous semiconductor layer and carrier selective high resistance film, without accumulating electric charges on the auxiliary plate. The inorganic anion exchanger adsorbs chloride ions in the insulating layer, thereby preventing destruction of X-ray detector due to the chloride ions drawn to the gold electrode layer. | 12-29-2011 |
20140080243 | METHOD OF MANUFACTURING RADIATION DETECTOR - A method of manufacturing a radiation detector, comprising: a charge blocking layer generating step of generating a charge blocking layer on a substrate; a CdTe-layer generating step of generating a CdTe layer so as to cover the charge blocking layer on the substrate, the CdTe layer undergoing heterojunction to the charge blocking layer and being composed of a chlorine-doped polycrystalline film; and a heat treatment step of performing a heat treatment on the substrate having the CdTe layer formed thereon. | 03-20-2014 |
Patent application number | Description | Published |
20110139992 | X-RAY DIAGNOSTIC APPARATUS - An imaging apparatus including a flow passage | 06-16-2011 |
20130026468 | RADIATION DETECTOR AND METHOD OF MANUFACTURING THE SAME - A graphite substrate is processed to have surface unevenness in a range of 1 μm to 8 μm. Thereby, a semiconductor film to be laminated on the graphite substrate has a stable film quality, and thus adhesion of the graphite substrate and the semiconductor layer can be enhanced. When an electron blocking layer is interposed between the graphite substrate and the semiconductor layer, the electron blocking layer is thin and thus the surface unevenness of the graphite substrate is transferred onto the electron blocking layer. Consequently, the electron blocking layer also has surface unevenness approximately in such range. Thus, almost the same effect as a configuration in which the semiconductor layer is directly connected to the graphite substrate can be produced. | 01-31-2013 |
20130115731 | METHOD OF MANUFACTURING RADIATION DETECTOR - Although Cl (chlorine) is no longer supplied in the course of a first process in which a detecting layer formed by a polycrystalline film or a polycrystalline lamination film by vapor deposition or sublimation is formed, an additional source (e.g., HCl of Cl-containing gas) other than a source is supplied at the start or in the course of the first process. Thus, the detecting layer as the polycrystalline film or the polycrystalline lamination film of CdTe, ZnTe, or CdZnTe can be doped with Cl uniformly in a thickness direction from the start until the end of the first process in film formation. As a result, uniform crystal particles and uniform detection characteristics can be achieved. | 05-09-2013 |
20140246744 | METHOD OF MANUFACTURING RADIATION DETECTOR AND RADIATION DETECTOR - A graphite substrate is accommodated into a chamber where vacuum drawing is performed via a pump. Thereafter, carbon is heated under vacuum, whereby impurities in the carbon are evaporated causing the carbon to be purified. The carbon in the graphite substrate is purified, achieving suppression of the impurities as donor/acceptor elements and also metallic elements in the semiconductor layer of 0.1 ppm or less, the impurities being contained in the carbon in the graphite substrate. As a result, occurrence of leak current or an abnormal leak point enables to be suppressed, and thus abnormal crystal growth in the semiconductor layer enables to be suppressed. | 09-04-2014 |