Abstract: A novel tape cassette reel lock releasing apparatus for a magnetic recording/reproducing apparatus. The tape cassette reel lock releasing apparatus includes a main base having a releasing boss inserting hole for a standard type cassette tape which corresponds to the position of a through hole formed on the standard type cassette tape and a releasing boss inserting hole for a small type cassette tape which corresponds to the position of a through hole formed on the small type cassette tape. The tape cassette reel lock releasing apparatus also comprises a releasing boss for the standard type cassette tape and a releasing boss for the small type cassette tape. The releasing bosses are respectively inserted into the releasing boss inserting holes from a lower portion of the main base. A supporting rib is attached to the bottom portion of the main base and is provided between the releasing boss inserting holes. A bracket is hinged to the lower end portion of the supporting rib.

Abstract: A video cassette recorder comprises a power transfer apparatus provided with a timing belt, a capstan motor pulley and a driven belt pulley. The capstan motor pulley includes a first contact body fixed to a capstan motor shaft of a capstan motor and adapted to be contacted with the timing belt, a first fixed guide plate integrally formed on one principal plane of the first contact body facing toward the capstan motor, and a first guide cap detachably mounted on the other principal plane of the first contact body, in order to prevent the timing belt from deviating from the first contact body. The driven belt pulley has a second contact body contacted with the timing belt, a second fixed guide plate integrally formed on one principal plane of the second contact body located in a same direction as the first fixed guide plate, and a second guide cap detachably mounted on the other principal plane of the second contact body in order to prevent the timing belt from deviating from the second contact body.

Abstract: The present invention relates to an apparatus for generating quasi equally spaced multi-channel frequencies using a frequency shifter. The optical multi-channel transmission system using OFDM or WDM can be provided with quasi equally spaced(unequally sequential spaced) frequencies on the basis of the functional relation among the frequency differences(n.sub.ij =n.sub.i -n.sub.j (i=j=1,2,3, . . . n)) of any two neighboring channels. Namely, after generating equally spaced frequencies by using a reference resonator, such as a Fiber Fabry Perot(FFP) resonator, each of the equally spaced frequencies is sequentially shifted by a frequency shifter, which generates and controls the quasi equally spaced(unequally sequential spaced) frequencies in order to effectively avoid crosstalk due to FFWM, and fully make use of the transmission bandwidth belonging to the low dispersion region of the optical fiber.

Abstract: A semiconductor device having a spiral electrode pattern and fabrication method thereof. The device includes an undoped semiconductor substrate, a first and a second probing pads formed on the substrate, and a pair of electrode fingers extending spirally toward a concentric center from the respective first and second probing pads and interdigitated with each other. The method includes the steps of, patterning an insulation layer on a semiconductor substrate in a spiral structure, depositing a metal layer on the substrate including the insulation layer but excluding the sides of the insulation layer, and etching the insulation layer using a wet etching technique.

Abstract: A mounting device is used to mount a handlebar on a head tube of a bicycle and includes a positioning member which is adapted to be mounted on the head tube and a holding member which includes complementary first and second holding arms. Each holding arm has a pivot end portion, a gripping end portion and an abutment face which extends between the pivot and gripping end portions. The pivot end portion of each of the holding arms is mounted pivotally on the positioning member. The gripping end portion of each of the holding arms is formed with a grip section with an axis that is parallel to an axis of the pivot hole. The grip sections of the holding arms are adapted to grip fittingly the handlebar therebetween. The abutment faces of the holding arms are complementary and are formed as twisted faces that abut against each other. A first fastener extends through the pivot end portion of each of the holding arms and the positioning member to mount the holding member onto the positioning member.

Abstract: A column decoding circuit for a semiconductor memory device includes a decoding unit and a pulse generating unit. The decoding unit decodes a selected column address and generates a selection signal. The pulse generating unit self-generates a pulse signal based on the selection signal output from the decoding unit. The pulse generating unit uses the self-generated pulse signal and the selection signal to output to a selected column switch a control signal having a minimum pulse width sufficient for selecting an associated column. Accordingly, a high speed read operation is performed by decreasing a loading and transmission time of the control signal. Further, power consumption of the column decoding circuit is decreased by self-generating the pulse signal, preferably based on the selection signal.

Abstract: There is disclosed a method for forming an ultra-shallow junction of a semiconductor device, comprising a four-stage RTA process following the ion implantation of dopants for source/drain junction, the RTA process being carried out with high temperature-elevating and -quenching rates between the stages, in such a way that relatively low temperatures are used for a short time in the first three stages in order to eliminate only the point defects, which greatly affect the diffusion of dopants, without diffusion of dopants while a relatively high temperature is taken in the last stage with the aim of allowing the dopants to diffuse a little to p.sup.+ and n.sup.+ shallow junctions, thereby obtaining an improvement in electrical activity and reducing junction current leakage and thus, improving the properties and reliability of the resulting semiconductor device.

Abstract: A method for manufacturing a metal halide lamp is disclosed. According to the method, an internal lead wire of an arc tube can be electrically connected to an external lead wire for applying current thereto by sealing a surrounding case thereby omitting a process of welding a metal lamina affixed to the external lead wire to the internal lead wire of the arc tube. Thus, productivity can be enhanced and it is easy to handle and preserve components for manufacturing the metal halide lamp.

Abstract: A phase shift mask for forming contact holes arranged in longitudinal, transversal and diagonal directions, capable of achieving an improvement in light contrast in the formation of contact holes, thereby forming a fine contact hole pattern. The phase shift mask includes a shifter formed on a transparent substrate and patterned to define windows respectively arranged at contact hole regions where the contact holes are formed. The windows consist of first windows each having a central portion defined by a portion of the shifter and an edge portion defined by an exposed portion of the substrate arranged around the portion of the shifter, and second windows each having a central portion defined by an exposed portion of the substrate and an edge portion defined by a portion of the shifter arranged around the exposed portion of the substrate.

Abstract: A suction tube mounted with an auxiliary brush of a vacuum cleaner separates coupled extension pipes from each other while projecting the auxiliary brush from the suction tube, and couples the extension pipes with each other while retreating the auxiliary brush from the preceding end of the suction tube which includes the first extension pipe, second extension pipe and auxiliary brush slidably mounted to the outer periphery of the first extension pipe in the lengthwise direction. The auxiliary brush is biased toward the front side of the first extension pipe by a biasing member and retreats toward the rear side of the first extension pipe by a retracting member.

Abstract: The composition based on a discharge from an oil refining plant after a desulfurization of heavy oils in the oil refining plant using a catalyst, comprising: 80% or less of vanadium; 80% or less of molybdenum; 20% or less of nickel; 30% or less of cobalt; 99% or less of alumina; and a trace of the impurities, which is catalytically active to purify the exhaust of diesel vehicles. A filter or a washcoat made of the discharged catalyst composition alone or in combination with ordinary filtering materials or ordinary washcoat materials can be very useful for purification of smoke. In addition, a catalyst in which at least one metal of the platinum group is uniformly impregnated on the filter is quite superior to conventional ones employing alumina or titania as a washcoat in stability to both high temperature and sulfur trioxide.

Abstract: An apparatus for measuring the linewidth of a laser is disclosed in which the linewidth of a laser is measured in a wide range from a narrow linewidth to a wide linewidth by utilizing frequency-shifted rays based on a stimulated Brillouin scattering within an optical fiber in an easy and efficient manner.

Abstract: This invention relates to a correction tape adhesiver for correcting a mistyped letter comprising a rotatable tape guider which may turn its direction according to the gripping posture and/or using direction of the user. Said tape guider is formed separately from the case at the backside edge thereof and combined with the guide sill so as to ensure rotation of the tape guider to the certain extent.

Abstract: An automatic channel accord method, which harmonizes first channel data corresponding to a first broadcasting reception device and second channel data corresponding to a second broadcasting reception device is provided. In the method, the first channel data is stored in the first broadcasting reception device, and the second channel data is stored in the second broadcasting reception device. Then, the first channel data is copied from the first broadcasting reception device and stored in the second broadcasting reception device as new second channel data. As a result, the new second channel data stored in the second broadcasting reception device corresponds to the first channel data stored in the first broadcasting reception device.

Abstract: A single switching circuit for a power supply which can improve the efficiency of the power supply and reduce a manufacturing cost thereof. The single switching circuit includes a diode and a capacitor connected in series between both terminals of a main switching element, and a coil connected in parallel to the diode, and determines a duty cycle of a transformer coupled to the switching element.

Abstract: An integrated computer and printer system includes a unitary housing having a base jointed to substantially parallel side walls, front and rear surfaces; a back cover pivotally connected at one end of the rear surface of said unitary housing, for allowing access to an interior of the unitary housing; a computer unit contained in, and positioned on the base of the unitary housing; a display unit contained in, mounted to the front of the unitary housing, and electrically connected to, and controlled by the computer unit for providing a visual display of application program; and a printer unit contained in, installed at the rear of the unitary housing, and electrically connected to, and controlled by the computer unit for performing printing operation upon instruction by an operator.