Abstract: A computed tomography (CT) apparatus according to various embodiments may include a gantry including a first rotation device, a second rotation device and a third rotation device which have a ring shape, share an axis of rotation, and are rotatable independently of one another, a plurality of first light sources provided on the first rotation device at regular intervals and configured to emit X-rays to a subject, a plurality of second light sources provided on the second rotation device at regular intervals and configured to emit X-rays to the subject, a detector provided on a region of the third rotation device and configured to detect X-rays passing through the subject, and one or more processors.

Abstract: A data receiving device may include a dummy stage block. The dummy stage block may include m dummy stages, wherein m is a natural number greater than or equal to two. Each of the m dummy stages may be configured to remove inter-symbol interference (ISI) from a dummy input signal using dummy coefficient information to generate a dummy output signal free of the ISI. Each of the m dummy stages may be further configured to output the dummy output signal. A normal stage block may include n normal stages, wherein n is a natural number greater than or equal to two. Each of the n normal stages may be configured to remove ISI from an input signal using coefficient information to generate an output signal free of the ISI and may be further configured to output the output signal.

Abstract: A computed tomography (CT) apparatus includes a gantry including a rotation device which has a ring shape and is rotatable about an axis of rotation, a plurality of light sources configured to emit X-rays to a subject, at least one detector provided on the rotation device and configured to detect X-rays passing through the subject, and one or more processors. The at least one processors are configured to rotate the rotation device in a first rotation direction by an angle of rotation determined based on a total number of the plurality of light sources, emit X-rays to the subject and detect X-rays passing through the subject during the rotation of the rotation device in the first rotation direction, and rotate the rotation device by the determined rotation angle in a second rotation direction.

Abstract: A computed tomography (CT) apparatus according to various embodiments may include a gantry including a first rotation device, a second rotation device and a third rotation device which have a ring shape, share an axis of rotation, and are rotatable independently of one another, a plurality of first light sources provided on the first rotation device at regular intervals and configured to emit X-rays to a subject, a plurality of second light sources provided on the second rotation device at regular intervals and configured to emit X-rays to the subject, a detector provided on a region of the third rotation device and configured to detect X-rays passing through the subject, and one or more processors.

Abstract: A computed tomography (CT) apparatus includes a gantry with a first rotation device and a second rotation device, a plurality of light sources configured to emit X-rays to a subject, a detector configured to detect X-rays passing through the subject, and one or more processors. The one or more processors may be configured to rotate the first rotation device in a first rotation direction by an angle of rotation determined based on a total number of the plurality of light sources, emit X-rays to the subject by using at least one of the plurality of light sources and detect X-rays passing through the subject during the rotation of the first rotation device in the first rotation direction, and rotate the first rotation device by the determined angle of rotation in a second rotation direction.

Abstract: The present invention relates to a system and method for controlling a minimum flow rate of a variable geometry turbocharger that improve the starting performance of a vehicle and prevent the generation of surge noise and smoke remarkably, comprising a stopper to restrict the lever rotation of a flow regulator and determine a minimum flow rate of the turbocharger based on the position that restricts the lever rotation, in a structure where its position can be regulated to control the lever rotation limit position and the minimum flow rate of the turbocharger, and an ECU to calculate a stopper position correction value, with which an actual boost pressure detected by a boost pressure detection unit satisfies a target boost pressure, if meeting predetermined vehicle speed and gear ratio conditions, and then to duty-control a stopper position regulator to correct the current stopper position by the calculated stopper position correction value.

Abstract: The present invention relates to a system and method for controlling a minimum flow rate of a variable geometry turbocharger that improve the starting performance of a vehicle and prevent the generation of surge noise and smoke remarkably, comprising a stopper to restrict the lever rotation of a flow regulator and determine a minimum flow rate of the turbocharger based on the position that restricts the lever rotation, in a structure where its position can be regulated to control the lever rotation limit position and the minimum flow rate of the turbocharger, and an ECU to calculate a stopper position correction value, with which an actual boost pressure detected by a boost pressure detection unit satisfies a target boost pressure, if meeting predetermined vehicle speed and gear ratio conditions, and then to duty-control a stopper position regulator to correct the current stopper position by the calculated stopper position correction value.

Abstract: Disclosed herein is a three-dimensional image constructing method using an X-ray apparatus. In the three-dimensional image constructing method, a construction space of a subject and information for the construction space are set. Thereafter, a plurality of transmission images of the subject are obtained. The data of the construction space are calculated on the basis of the information for the construction space set at the setting step and the transmission images obtained at the image obtaining step. The construction space is constructed on the basis of the data calculated at the image processing step.

Abstract: A laminography system includes a table, an X-ray source, an image intensifier, a view selector and a camera. The view selector has a prism for refracting a ray of light, and an adjusting part for adjusting the prism to a position in which images at a certain area of an image projecting plane of the image intensifier are received into the camera. The adjusting part has a first motor for rotating the prism along the circumferential direction of the image intensifier, and a second motor for rotating the prism in a direction perpendicular with respect to a radial direction of the image intensifier. Accordingly, the images at any areas of the image projecting plane of the image intensifier can be obtained. In addition, since an optical axis of the image passing through the prism and then received into the camera is in perpendicular relation with the camera, no image distortions occur.