Abstract: A photographing control apparatus that controls a sensor for accumulating and reading out electric charge in order to obtain an image, includes: a deciding unit adapted to decide a frame period showing an image photographing interval, based on an input of an input unit; a determining unit adapted to determine, based on the frame period decided by the deciding unit, whether accumulation and reading out of electric charge not for use in an image generating process is set in the frame period; and a control unit adapted to control the sensor based on the determination by the determining unit.

Abstract: Processing for improving the contrast of an image of interest is executed by an image processing circuit in an X-ray photography apparatus. The image is decomposed into coefficient values of a plurality of frequency bands by a frequency-component decomposition circuit to obtain coefficients of each and every frequency band. A coefficient conversion circuit converts coefficient values with regard to at least one frequency band of the plurality of frequency bands in such a manner that a frequency distribution of coefficient values of every frequency band will become a prescribed frequency distribution. A restoration circuit generates an image using the coefficient values obtained by the conversion performed by the coefficient conversion circuit.

Abstract: A radiography system comprising a detector for detecting radiation generated by a radiation generation device, and a detector controller for initializing the detector at a predetermined timing, and controlling the detector, and taking a radiation image on the basis of the radiation detected by the detector wherein the detector controller comprises storage for acquiring and storing a time period from when initialization of the detector starts until a radiation irradiation request signal is received and instructions for, when the radiation irradiation request signal is received during an initialization process of the detector, instructing to execute a wait process for the stored time period after the initialization process, and upon completion of the wait process, a radiography permission signal is sent to the radiation generation device.

Abstract: An X-ray imaging apparatus includes a multi X-ray generating unit in which multiple X-ray foci are disposed in two-dimensional form at a predetermined pitch in a first direction, and a slit unit having multiple slit members each disposed opposite to its respective X-ray focus. Each slit member has multiple slits arranged in the first direction, and each of the slits forms a slice-formed X-ray beam whose lengthwise direction is a second direction that is different from the first direction. The two-dimensional detection unit detects the X-ray intensity of the formed X-ray beams at the detection surface. The X-ray imaging apparatus executes X-ray imaging at multiple positions while moving the multi X-ray generating unit and the slit unit in the first direction by the amount of the predetermined pitch, while keeping the relative positional relationship therebetween, and reconstructs an X-ray image based on the obtained X-ray intensity.

Abstract: An image processing apparatus and method including executing high-pass filtering in a column direction on the pixel values of original image data read from a flat panel detector to obtain first image data, and subtracting a value obtained by converting each of the pixel values of the first image data in accordance with an absolute value of a statistic calculated from pixel values in the same pixel row of the first image data from the value of a corresponding pixel of the original image data to obtain processed image data.

Abstract: For performing imaging with a high-frame rate, a control apparatus determines the time where at least one electrical charge of a sensor is read based on information about the position of an irradiation area of the sensor, the irradiation area being irradiated with a radiation, so that the time period where at least one electrical charge of a non-irradiation area of the sensor is read, the non-irradiation area being irradiated with no radiation, overlaps the time period where irradiation with the radiation is performed and the time period where at least one electrical charge of the irradiation area of the sensor is read does not overlap the radiation-irradiation-time period.

Abstract: A photographing control apparatus that controls a sensor for accumulating and reading out electric charge in order to obtain an image, includes: a deciding unit adapted to decide a frame period showing an image photographing interval, based on an input of an input unit; a determining unit adapted to determine, based on the frame period decided by the deciding unit, whether accumulation and reading out of electric charge not for use in an image generating process is set in the frame period; and a control unit adapted to control the sensor based on the determination by the determining unit.

Abstract: For performing imaging with a high-frame rate, a control apparatus determines the time where at least one electrical charge of a sensor is read based on information about the position of an irradiation area of the sensor, the irradiation area being irradiated with a radiation, so that the time period where at least one electrical charge of a non-irradiation area of the sensor is read, the non-irradiation area being irradiated with no radiation, overlaps the time period where irradiation with the radiation is performed and the time period where at least one electrical charge of the irradiation area of the sensor is read does not overlap the radiation-irradiation-time period.

Abstract: Processing for improving the contrast of an image of interest is executed by an image processing circuit in an X-ray photography apparatus. The image is decomposed into coefficient values of a plurality of frequency bands by a frequency-component decomposition circuit to obtain coefficients of each and every frequency band. A coefficient conversion circuit converts coefficient values with regard to at least one frequency band of the plurality of frequency bands in such a manner that a frequency distribution of coefficient values of every frequency band will become a prescribed frequency distribution. A restoration circuit generates an image using the coefficient values obtained by the conversion performed by the coefficient conversion circuit.

Abstract: Processing for improving the contrast of an image of interest is executed by an image processing circuit in an X-ray photography apparatus. The image is decomposed into coefficient values of a plurality of frequency bands by a frequency-component decomposition circuit to obtain coefficients of each and every frequency band. A coefficient conversion circuit converts coefficient values with regard to at least one frequency band of the plurality of frequency bands in such a manner that a frequency distribution of coefficient values of every frequency band will become a prescribed frequency distribution. A restoration circuit generates an image using the coefficient values obtained by the conversion performed by the coefficient conversion circuit.

Abstract: Since the duration of an idling drive period is not defined (not specified) in practical use, T1 is set to be longer than that in a normal photographing operation to make idling-dedicated idle read frames Fi in which the ON time of a TFT (82) is shorter than the normal read drive frame, so as to minimize read operations that impose a heavy load on a photodetector array (58) (especially, the TFT (82)).

Abstract: Processing for improving the contrast of an image of interest is executed by an image processing circuit in an X-ray photography apparatus. The image is decomposed into coefficient values of a plurality of frequency bands by a frequency-component decomposition circuit to obtain coefficients of each and every frequency band. A coefficient conversion circuit converts coefficient values with regard to at least one frequency band of the plurality of frequency bands in such a manner that a frequency distribution of coefficient values of every frequency band will become a prescribed frequency distribution. A restoration circuit generates an image using the coefficient values obtained by the conversion performed by the coefficient conversion circuit.

Abstract: Since the duration of an idling drive period is not defined (not specified) in practical use, T1 is set to be longer than that in a normal photographing operation to make idling-dedicated idle read frames Fi in which the ON time of a TFT (82) is shorter than the normal read drive frame, so as to minimize read operations that impose a heavy load on a photodetector array (58) (especially, the TFT (82)).

Abstract: An information recording method in which a recording start position of a data section in which file data of a recording medium such as an optical card has been recorded is calculated on the basis of a directory for managing a file of the information recording medium recorded in a directory section and, when the data has been recorded at the calculated recording start position, a retry operation to judge whether the data has been recorded at the next recording position or not is repeated a predetermined number of times, thereby retrieving the final recording position of the data section. When the final recording position of the data section cannot be detected even if the retry operation was repeated the predetermined number of times, the information indicative of the recording position at which the retry operation was finally executed is recorded to the directory section.

Abstract: A method for recording a plurality of kinds of data to a recording medium such as an optical card or disc having a recording surface on which a plurality of sectors are arranged in accordance with a predetermined order and for reproducing the recorded data is provided. A plurality of blocks each of which includes a plurality of sectors and which correspond to the kinds of data are prepared for the recording surface. One of the plurality of blocks is accessed on the basis of the kind of data. In the accessed block, data is recorded onto at least one sector in accordance with the predetermined order. In the accessed block, updating data is additionally recorded onto at least one sector subsequent to the data recorded sector. In the accessed block, the recorded data is reproduced from at least one of the finally recorded sectors. A plurality of tracks each comprising a plurality of sectors are arranged in parallel on the recording surface of the optical card.

Abstract: An information recording-reproducing head driving circuit for moving an information recording-reproducing head from the current position on a recording medium to a desired position while velocity-controlling the head includes a pulse motor for moving the information recording-reproducing head relative to the recording medium, a timer for counting down a count value set to take the driving timing of the pulse motor, and controller for calculating the count value on the basis of a predetermined time table and setting the count value in the timer, and generating a driving pulse to the pulse motor when the timer has counted down the count value. The controller substracts a desired value extracted from the time table from the count value set in the timer the last time to thereby accomplish the calculation of a new count value.

Abstract: Disclosed is a method of seeking a desired track by scanning a recording medium having a plurality of tracks formed thereon by a light spot in a direction across the tracks, and counting track crossing signals detected from the reflected light or the transmitted light of the spot. In this method, of the track crossing signals, only those signals which are detected within a predetermined time inteval are counted as a correct track crossing signal. An apparatus for carrying out such a method is also disclosed.

Abstract: Around an engine-body of a vehicle, several auxiliary machinery such as an air-conditioner and a power steering-pump are disposed. Pulleys of said auxiliary machinery are driven by means of an endless belt or endless belts by a driving pulley of the engine. In order to obtain the most effective operation of the engine, consideration should be given to the degree of the power loss for driving the auxiliary machinery.For this purpose, according to the present invention, the order by which said several driven pulleys are driven by said driving pulley is determined by the magnitude of the driven torques of the corresponding auxiliary machinery along the running direction of the endless belt toward the driving pulley.

Abstract: A vane pump comprising a cylindrical rotor provided with a diametrically extending vane groove, a vane slidably arranged in the vane groove in radial directions, a cylinder in which the rotor is rotatably arranged, the cylinder having an inner peripheral cam surface with which said vane always comes into sliding contact at its opposed ends, the cam surface of the cylinder having a profile defined by cycloid curves and/or arc portions which have a radius substantially equal to that of the rotor.

Abstract: A paper feeder comprises a controllably drivable resilient body in frictional contact with a feed roller. A preliminary feeder is provided for supplying a sheet of paper towards an area of the frictional contact from a stack of paper. The roller is driven in a first sense of rotation to feed the supplied paper away from the preliminary feeder. The resilient body is usually driven in a second sense towards the preliminary feeder at the frictional contact area and selectively set free on feeding a thin or flexible sheet. The resilient body may further be driven in the first sense on feeding either a thin or flexible sheet or a ground sheet on which another sheet of paper is attached.