Abstract: A cam driving apparatus for a Stirling cycle module in which a circumferential surface of a rotary cam is equipped with an upper cam curve profile and a lower cam curve profile thus achieving a light and compact cam module.

Abstract: A multi-function sensor using a semiconductor laser capable of sensing a value of a measurement object such as temperature, humidity, pressure or vibration on the basis of a variation in the distance between a measurement object medium adapted to respond to a variation in the measurement object and a focus of laser beams projected onto the measurement object medium and thereby capable of measuring the measurement object in a high accuracy irrespective of a variation in the quantity of laser beams depending on a variation in surrounding circumstance.

Abstract: A sample rate conversion device for processing a non-standard television signal converts a sample rate of an output signal component of a color decoder that uses a BL (Burst Locked) clock, which is applied to a memory application part that uses a LL (Line Locked) clock, for a digital television system, such as an IDTV (Improved Definition Television) system, to prevent the degradation of picture quality which may develop when digital processing a non-standard TV signal. The conversion is done by repeating the signal component processed according to the BL clock every time the LL clock is ahead of the BL clock by one clock cycle in the situation when the LL clock is faster than the BL. When the LL clock is slower than the BL clock, the converter skips the signal component processed according to the BL clock every time the LL clock is behind the BL clock by one clock cycle.

Abstract: An electron gun for a color cathode-ray tube, adapted for large television sets or high-definition monitors, has first and second quadrupole electrodes connected to a static voltage focus electrode and to a dynamic voltage focus electrode, respectively, to form a quadrupole lens. The first quadrupole electrode is composed of first electrode pieces connected to the static voltage focus electrode and arranged on left and right sides of three beam-passing apertures formed on the static voltage focus electrode, and each of the first electrode pieces has at least one arc having a radius identical to or larger than that of the beam-passing apertures. The second quadrupole electrode is composed of second electrode pieces connected to upper and lower portions of the dynamic voltage focus electrode, and each of the second electrode pieces has arcs having a radius identical or larger than that of the beam-passing apertures. The first electrode pieces are inserted inside of the second electrode pieces.

Abstract: An apparatus and a method for separating luminance and color signals from an input video signal.

Abstract: Automatic RF signal level control apparatus for a VCR which can keep the RF channel signals recorded on or reproduced from a video tape in the same level by compensating for the level difference between the RF channel signals. The apparatus includes a detecting and comparing section for detecting and comparing the RF channel signal levels recorded or reproduced by channel heads, and converters and a switching section for compensating for the level difference between the RF channel signals according to the result of comparing.

Abstract: A liquid crystal display device capable of achieving improvements in resolution and aperture ratio.

Abstract: This invention relates to a suction structure of a sirocco fan housing, the suction structure including a separate fluid suction guide, or a bellmouth member having a fluid suction guide integral therewith, disposed in a suction opening of the housing to reduce noises generated by a vortex flow in the fan and minimize a dead zone and a vortex phenomenon generated at the forward end portion of the fan, thereby enhancing efficiency of the fan.

Abstract: A method for the fabrication of a liquid crystal display device consisting of a plurality of gates lines and a plurality of data lines and a thin film transistor at each intersection area of gate and data lines includes the steps of: forming a gate electrode and an oxide film on a glass substrate; depositing a gate insulation layer, an active layer and an impurity-doped layer, in sequence; taking off the gate insulation layer at an area connected with an anodized oxide line and then cleaving the gate electrode at the area connected with the anodized oxide line; forming a transparent electrode and then forming a source/drain electrode. An area of the gate electrode which is connected with the anodized oxide line is cleaved for testing, in advance of forming the transparent electrode by a chemical etchant. Accordingly, the chemical etchant used for forming the transparent electrode does not come into direct contact with the gate electrode, preventing damage to the gate electrode.

Abstract: An apparatus for adjusting an orbital radius in a scroll compressor includes transmitting elements driving an orbiting scroll in accordance with the movement of a driving shaft and a stopper controlling the moving range of the transmitting elements with respect to the center of the driving shaft. The transmitting elements, including a bushing, are movably provided between the driving shaft and the orbiting scroll, so as to allow the distance between the center of the driving shaft and the center of the transmitting elements to change. The stopper is assembled to the transmitting elements in order that the position of the stopper is controllable. As for the stopper, there is provided a screw which is fastened into a screw hole formed on one side of the driving shaft or the bushing, thereby limiting movement of the driving shaft or the bushing.

Abstract: A fast running mode conversion device for magnetic recording and reproducing apparatus. This device has a shaft supporter provided on the bottom surface of a base plate. An idler lifting lever for lifting or lowering an idler arm is pivotally mounted on the shaft supporter. A drive arm for driving the idler lifting lever is rotatably mounted on a shaft of the base plate. A biasing member coupled to the drive arm has a biasing lever for driving the idler lifting lever. The biasing lever extends toward the idler lifting lever. A function plate rectilinearly reciprocates by the rotating force of a cam gear, thus to turn the drive arm. The drive arm has an operating pin and the function plate has a pair of cam projections for cooperating with the operating pin when turning the drive arm.

Abstract: An improved automatic thawing apparatus for a microwave oven capable of advantageously thawing food which includes a heating chamber for a food placement therein; a microwave generator for providing microwave energy into the heating chamber in order to heat the food therein; at least one amplifier for amplifying signals detected by a thawing state detection circuit to a predetermined level; a bias voltage control circuit for generating bias signals for initializing an output signal of the amplifier to a predetermined level in beginning of the thawing operation; and a control circuit for controlling the initialization of the output signal of the amplifier to the predetermined level by controlling the bias voltage control circuit, for judging the thawing state of the food in the heating chamber in response to the signal outputted from the amplifier, and for outputting control signals to the microwave generator in accordance with such judgement.

Abstract: A semiconductor laser capable of minimizing generation of defects at the interface between grown layers, and a method for fabricating the same.

Abstract: A digital video signal reception apparatus comprising a multiplexer selection controller for outputting a plurality of control signals according to a format of a compressed input digital video signal, a decoder for decoding the compressed input digital video signal, a frame rate conversion circuit for convening a frame rate of the decoded digital video signal from the decoder into a desired value under the control of the multiplexer selection controller, a multiplexer for selecting one of the decoded digital video signal from the decoder and an output video signal from the frame rate conversion circuit under the control of the multiplexer selection controller, a decimation circuit for performing a decimation operation to convert the number of horizontal scanning lines of an output video signal from the multiplexer into a desired value, a display mode conversion circuit for performing a display mode conversion operation so that an output video signal from the decimation circuit can be displayed in a desired di

Abstract: An improved automatic pump capable of advantageously reducing manufacturing processes thereof as well as significantly preventing pressure decrease in a pump assembly by providing a pressure control tube and removing a sealing process thereof, which includes a motor for transmitting driving force to corresponding elements thereof; a working chamber formed in front of the motor, in which an impeller drivingly connected to a rotary shaft of the motor is disposed; a pump casing attachably attached to a predetermined portion of the working chamber and having a pressure tank with a predetermined size thereof; and a pressure control tube equipped with an air pressuring port disposed at a predetermined portion of the pump casing.

Abstract: A brake device for a magnetic recording and reproducing apparatus, such as a slide loading type camera recorder. The supply reel brake unit includes a supply reel brake having an operating pin, and a mode switch gear having an operating protrusion pushing the operating pin in a tape running mode, thereby releasing the tape supply reel table. In addition, the supply reel brake unit may comprise a drive cam gear, a supply reel brake cooperating with the drive cam gear to selectively brake the tape supply reel table.

Abstract: A low frequency vibration type washing machine has an oscillating disc suitable for both generation of an effective circulation current in the multi-phase washing medium and prevention of energy loss. The oscillating disc vertically vibrates in the multi-phase washing medium in the washing tub at different ascending and descending velocities, thus to generate an effective circulation current in the multi-phase washing medium. A plurality of perforations are formed in the oscillating disc for both reduction of the washing medium resistance and generation of the effective circulation current in the washing medium. The washing machine also has an elastic body mounted on the oscillating disc for preservation of vibration energy loss of the washing medium in the form of elastic energy. The washing tub is preferably rounded at its inner bottom corner and at its inner bottom center about the disc drive shaft penetrating the bottom center.

Abstract: In-line electron guns for color picture tube improving the resolution of the color picture tube. The guns not only exhibit the special quality of a large aperture of lens but also achieve the desired mechanical strength of electrodes by arranging .OR right.-shaped inner electrode plates in the envelope electrodes respectively. Each of first and second accelerating/focusing electrodes for focusing three electron beams of the electron beam sources on the phosphor screen includes an envelope electrode and an electrostatic field control electrode placed in the envelope electrode. The envelope electrode includes a predetermined length of hollow envelope part and a predetermined width of rim part extending from an edge of the hollow envelope part. The electrostatic field control electrode includes a plate electrode sided by predetermined width of blades at opposed sides thereof. This blade sided plate electrode is holed at its center so as to have a center beam passing opening.