Abstract: Hybrid devices, such as optically erasable memory cells and light sensors, and related methods are disclosed. In some embodiments, a device includes a structure capable of converting between a first resistance state and a second resistance state, and a light source configured to convert the structure from the first resistance state to the second resistance state. The structure includes an organic first material and a second material different from the first material.

Abstract: Hybrid devices, such as optically erasable memory cells and light sensors, and related methods are disclosed. In some embodiments, a device includes a structure capable of converting between a first resistance state and a second resistance state, and a light source configured to convert the structure from the first resistance state to the second resistance state. The structure includes an organic first material and a second material different from the first material.

Abstract: The position of a feed shaft is monitored, the mean moving speed and moving frequency of the feed shaft are measured with every unit time for position correction, and a correction amount &dgr;n is determined from the speed and frequency according to an approximation formula and updated (c7 and c8). A position correction amount for a commanded position is determined from this correction amount, and the commanded position is corrected by the position correction amount (c1 to c6). The position correction amount for the commanded position is determined from this correction amount, and the commanded position is corrected by this position correction amount. Since the correction amount is determined according to the approximation formula, thermal displacement correction can be effected at all times without requiring any sensor.

Abstract: In the structure of a stave for cooling carbon fire-bricks laid on a hearth side wall of a blast furnace, the stave arranged between the carbon fire-bricks on the hearth side wall and a shell is made of a rolled steel plate. The stave body is formed in such a manner that a cooling water passage is formed by drilling the steel plate directly, or the steel plate on which grooves are formed is joined onto another steel plate to be used as a cover. A cooling water feed port and a cooling water discharge port are provided on the outside of the stave body, and these ports are connected to the cooling water passage.

Abstract: A method of correcting thermal displacement error in a driving system of a machine tool comprises forming a heat distribution model including the driving system, and finding an amount of drive in the driving system in the heat distribution model, estimating a heating value supplied to the heat distribution model depending upon the amount of drive, estimating a temperature distribution state in the distribution model by finding a time variation of heating value in the heat distribution model receiving supply of the estimated heating value, finding an amount of heat displacement in the driving system depending upon the temperature distribution state and finding a correction value for thermal displacement correction depending upon the amount of thermal displacement. It is thereby possible to correct the thermal displacement error in the driving system of the machine tool without a detector.

Abstract: An automatic tool changer for a machine tool comprises a first cam (C.sub.S) for swinging a turret (38) by cooperation with a first cam roller (21) mounted on a back face of the turret (38); a second cam (C.sub.L) for raising and lowering the turret (38) with respect to the spindle head in a direction along a central axis of the spindle of the machine tool; and a link (6, 8, 14, 16) having a second cam roller (22) cooperating with the second cam (C.sub.L), the link raising or lowering the turret (38) with respect to the spindle when the turret (38) is swung by the cooperation between the first cam (C.sub.S) and the first cam roller (21) in order to reduce the shock generated at the spindle and the turret (38) at the tool change.

Abstract: A cross modulation interference free AM radio receiver with precise channel selection includes an RF amplifying circuit for a radio frequency (RF) signal incoming through an antenna (1; 101) to output a wide band RF signal and an automatic gain control (AGC) circuit (7; 107) for controlling the gain of the RF amplifying circuit in accordance with the field strength of the wide band RF signal. A circuit (3, 4, 5, 6; 109, 110, 111, 112, 113) as provided for extracting a desired signal from the wide band RF signal, and a first control circuit (81; 114, 116, 118) for reducing the AGC effect of the AGC circuit in a decrease in the field strength of the desired signal which results in an increase in the amplification rate of the RF amplifying circuit. A second control circuit (8) makes the first control circuit non-operative in response to an instruction of an automatic channel selection at which time the AGC circuit performs an AGC operation only in accordance with the field strength of a wide band RF signal.

Abstract: An RF signal received by an antenna is amplified in an amplifier circuit and is then tuned in a tuned circuit to pick up a signal having a certain frequency and a certain level. Then, the picked up signal is mixed with another signal to output an IF signal and the IF signal is detected to reproduce the desired broadcasting program. An AGC circuit ensures high and low levels of the received signal to make the received signal to a certain level. Further, a damping circuit capable of switching a damping amount by a sensitivity switching signal is arranged in the rear stage of the AGC circuit. Hence, intensity of a signal for performing a detection or the like can be exactly switched based of the sensitivity switching signal in an automatic broadcasting station selection.

Abstract: In a signal-strength-peak detecting circuit, tuning frequencies by a tuning circuit are periodically varied. Wide band seek is performed according to a signal level of the varied frequencies. When the signal level is greater than a predetermined value, a fine tuning circuit varies tuning frequencies to perform narrow band seek. Further, change of signal levels is detected during narrow band seek to decide whether the peak of the signal level is trapezoidal or rounded. When the peak is decided to be rounded, the maximum value is used as the peak. On the other hand, when the peak is decided to be trapezoidal, the central point of an upper side of the trapezoid is selected as an optimum peak.

Abstract: A radio receiver responsive to a received RF signal containing a plurality of channel frequencies each having broadcast information which includes a circuit for producing a wide band version of the received RF signal and a circuit for producing a narrow band version of the received RF signal. Selection of a channel at a given frequency is accomplished by using the wide band version of the received RF signal and after such selection is made, the narrow band version of the signal is used for further reception of the selected channel frequency and reproduction of the information thereon.

Abstract: In a tool exchange system, in which the selection of a tool (8) supported on a magazine (9) is done by the rotation of a main spindle (5) via a pair of gears (20) and (21), an elastic member (71) is provided so as to retain the magazine (9) in a machining position (pause position) which does not interfere with a machining operation. A first cam mechanism (11) is adapted to move the magazine (9) between a tool exchange position and the machining position in response to the vertical move of a Z-slider (3) moving along a column (1). A second cam mechanism (12) is adapted to operate a tool attachment/removal means (6).

Abstract: A route bus service controlling system comprising ground radio unit installed at a terminal or start-and-end point of bus service routes, a turn point of each route and a plurality of passage points therebetween and serving to detect the passage time of each route bus at every point, the ground radio units being further capable of sending the detected time signal to a central service controller and, after receiving service information from the central service controller, transmitting such information to each route bus; the central service controller for first receiving the actual run information of each route bus from the ground radio units, then making up, on the basis of the received service information, modified service schedules for the buses in the individual route sections so as to realize an optimal time interval service of all the buses running on the respective routes, and transmitting via the ground radio units to the corresponding buses the modified service schedules with various conditions added t

Abstract: When cutting workpiece into a desired number of closed loop configurations by means of a wire-cut, electric discharge machine provided with an automatic wire feed mechanism, electric discharge machining is started from a machining start hole made in the workpiece corresponding to each closed loop configuration and is performed to a point where the electric discharge machining operation is stopped, thus a part of the closed loop configuration is left uncut. After fixing at least one portion of each closed loop configuration to the workpiece and inserting the wire electrode into the machining start hole by the automatic wire feed mechanism, the electric discharge machining operation is resumed to cut off the remaining uncut part.

Abstract: A wire-cut, electric discharge machining method in which a wire is inserted into a machining start hole made in a workpiece to start electric discharge machining from the machining start hole, a bushing of a conductive material is pressed into a hole made in the workpiece to provide the machining start hole.

Abstract: A curved reflector is disposed behind an elongated lamp for reflecting light from the lamp onto a document carrier in the form of a narrow elongated beam. The carrier is movable perpendicular to the beam for scanning a document placed on the carrier. One or more orifices are formed through the back of the reflector and a blower creates an air flow through the orifice and around the lamp for cooling the same.