Abstract: The rotary member carrying the X-ray radiation unfit and the X-ray detection unit and rotated around a subject is used as the rotor. The rotor is provided with a rotor core and a plurality of conductors connected to the core. The stator has at least one set of stator core and stator winding, the at least one set of stator core and stator winding being adapted to clamp the rotor and arranged at opposing positions. A three-phase AC current is supplied to the stator winding to generate a rotating magnetic field to rotate the rotor and thereby rotate the rotary member at high speed. Because the scan time can be reduced, the X-ray CT scanner can scan such moving organs as heart.

Abstract: The rotary member carrying the X-ray radiation unfit and the X-ray detection unit and rotated around a subject is used as the rotor. The rotor is provided with a rotor core and a plurality of conductors connected to the core. The stator has at least one set of stator core and stator winding, the at least one set of stator core and stator winding being adapted to clamp the rotor and arranged at opposing positions. A three-phase AC current is supplied to the stator winding to generate a rotating magnetic field to rotate the rotor and thereby rotate the rotary member at high speed. Because the scan time can be reduced, the X-ray CT scanner can scan such moving organs as heart.

Abstract: In a semiconductor memory device including a bit line precharge/equalizing circuit, the control system of the bit line precharge/equalizing circuit is changed in the normal operation mode and in the test mode. In the test mode, the bit line precharge/equalizing circuit is temporarily turned ON when an internal activation signal becomes non-active and then the bit line precharge/equalizing circuit is turned OFF after the potentials of paired bit lines are completely equalized.

Abstract: A control apparatus for controlling movement of a table supporting an object under inspection in a medical diagnosis system includes a driving power unit for moving the table, a position detector for outputting a signal indicating a position of the table, a positioning servo-control unit for controlling the driving power unit so that the detected position signal coincides with a given desired value, a manipulating force detector for outputting a force signal corresponding to a manipulating force applied by an operator, a force-to-position conversion unit for converting the force signal into a position change quantity for the table, a force control unit for controlling the driving power unit in accordance with the position change quantity so long as the manipulating force is being detected, and a change-over unit for selecting either the positioning servo-control unit or the force control unit in response to operation of the operator.

Abstract: The control voltage .phi.1 outputted by the control voltage generating circuit 1 is at a low level in a range where an external supply voltage Vcc is lower than the threshold value of the transistor P1, but increases continuously in analog manner when the external supply voltage Vcc rises. After having matched the external supply voltage Vcc, the control voltage .phi.1 increases in the same way as the external supply voltage Vcc. By use of the control voltage provided with the characteristics as described above for an output circuit, controlled is the gate of a transistor P4 of a low-voltage operating output section 6 operative only at a voltage lower than a predetermined value. The transistor P2 of a full-voltage operating output section 5 of the output circuit is always operative on the basis of the control signal .phi.H of the data output control circuit 3.

Abstract: A semiconductor integrated circuit includes memory cell blocks having memory cells arranged in matrix, sense amplifiers, each located adjacent to the memory cells, and sense amplifier control circuits, each of the sense amplifier control circuit being located on outside of the memory cell block. The sense amplifier control circuit has a standard voltage generating circuit and a control circuit for receiving the standard voltage and for transferring a driver signal to the sense amplifier to control the charging ability of the sense amplifier. The source voltage has three voltage regions, first, intermediate, and second regions. In the first voltage region, the potential of the driver signal increases with the increase of the source voltage. In the intermediate voltage region (2.7 to 3 Volt), the potential of the driver signal is changed oppose to the change of the source voltage, and in the second voltage region, the potential of the driver signal decreases with the increase of the source voltage.

Abstract: The control voltage .phi.1 outputted by the control voltage generating circuit 1 is at a low level in a range where an external supply voltage Vcc is lower than the threshold value of the transistor P1, but increases continuously in analog manner when the external supply voltage Vcc rises. After having matched the external supply voltage Vcc, the control voltage .phi.1 increases in the same way as the external supply voltage Vcc. By use of the control voltage provided with the characteristics as described above for an output circuit, controlled is the gate of a transistor P4 of a low-voltage operating output section 6 operative only at a voltage lower than a predetermined value. The transistor P2 of a full-voltage operating output section 5 of the output circuit is always operative on the basis of the control signal .phi.H of the data output control circuit 3.

Abstract: The control voltage .phi.1 outputted by the control voltage generating circuit 1 is at a low level in a range where an external supply voltage Vcc is lower than the threshold value of the transistor P1, but increases continuously in analog manner when the external supply voltage Vcc rises. After having matched the external supply voltage Vcc, the control voltage .phi.1 increases in the same way as the external supply voltage Vcc. By use of the control voltage provided with the characteristics as described above for an output circuit, controlled is the gate of a transistor P4 of a low-voltage operating output section 6 operative only at a voltage lower than a predetermined value. The transistor P2 of a full-voltage operating output section 5 of the output circuit is always operative on the basis of the control signal .phi.H of the data output control circuit 3.