Abstract: A mounting device for a temperature control switch in a freezer compartment for advantageously providing a more spacious freezer compartment, which includes a grill member provided on the rear wall having a temperature control switch support member formed on a front surface thereof and having a plurality of openings for permitting cooled air to flow into the freezer compartment; and a temperature control switch, mounted to the back side of the temperature control switch member and having a temperature control knob inserted onto a setting shaft thereof.

Abstract: A pulsator with an improved structure having a punching function is used in a washing machine. The pulsator of the present invention is composed such that a rotating member has a guiding dimple formed on its upper end surface, and an elevating member has a guiding protrusion projected from the inner surface. According to this pulsator, non-symmetrical water flow and up-and-down water flow can be generated easily so that the entanglement of the washing articles can be minimized, and the washing is carried out effectively.

Abstract: A method and device for preventing a danger of fire outbreak generated by a needless material inserted between metal fan and bottom sensor comprising means for means for comparing a voltage equivalent to a detecting temperature of bottom sensor with a reference voltage equivalent to a designated cooking temperature, generating signals equivalent to ending of cooking function or not ending from a resultant value counting cooking function time according to system clock and controlling heat source voltage from a resultant value which performs AND-gate operation with the signal outputted from the generating means and the signal outputted from the comparing means and performs cooking by method for controlling cooking process judging the insertion of a needless materials from counting values of driving cooking process counter in case that detecting temperature of a metal pan is lower than the temperature designated for cooking.

Abstract: An optical pickup device using hologram optical elements, the pickup device including a laser diode and, a hologram glass plate diffracting a laser beam emitted from the laser diode and dividing and condensing the laser beam reflected by an optical disc. The hologram glass plate is arranged at the front of the laser source while being spaced apart from the laser diode by a predetermined distance and is provided with four holograms. A collimator is arranged at the front of the hologram glass plate and changes the laser beam emitted from the laser source as well as the laser beam reflected by the optical disc into a parallel beam. An objective lens focuses the parallel laser beam from the collimator on the optical disc. A pair of focusing photo detectors and a pair of tracking photo detectors are also provided at the front of the laser diode and detect the laser beams diffracted and condensed by the holograms of the hologram glass plate in the form of data reading signals.

Abstract: A method is provided for manufacturing magnetic heads having excellent magnetic properties comprising the steps of removing a certain thickness of a portion of at least one of the apexes of first and second core halves to form a space therebetween above at least one winding groove, bonding the first and second core halves by filling the space with bonding glass, and applying a first magnetic film on the whole tape sliding surface of the bonded first and second core halves. The first magnetic film is removed from one of the first and second core halves. Then gap material and a second magnetic film are applied in sequence on the whole tape sliding surface. The whole tape sliding surface is lapped until the first magnetic film is exposed, and the second magnetic film is spaced from the first magnetic film by the gap material.

Abstract: A color signal processing system for a color television receiver which can improve the transition characteristic of a color difference signal, using the transition region of a luminance signal. The system includes a differentiator for differentiating the transition region of an input luminance signal, and a color difference signal processor for processing an input color difference signal by controlling the transition region of the color difference signal in accordance with the differentiated luminance signal. Thus, the transition characteristic of the color difference signal is compensated for in proportion to the transition characteristic of a luminance signal.

Abstract: A teletext information displaying method and the apparatus therefor for a wide-screen television receiver by which both the list and the contents of received teletext pages are displayed on a 16.times.9 A.R. screen, so that a user can easily find desired teletext information without the necessity of individually entering page data for page search. According to the present method and apparatus, teletext page data being received is stored in a first memory, and the list of the stored pages is created and stored in a second memory. The page list and the contents thereof are selectively displayed on a 4.times.3 A.R. region and a remainder region of the 16.times.9 A.R. screen. Also, when the channel is selected, information on the teletext pages having been received and stored and the teletext type are displayed for a predetermined time with a television picture, thereby providing convenience in use.

Abstract: An improved projection lens capable of substantially and advantageously implementing a distinct picture by compensating for a chromatic aberration and a residue aberration, which includes a first lens group, including a lens element convex to a screen and having a relatively weak optical power, for eliminating a spherical surface aberration; a second lens group having positive optical power and cemented with a two side lens element having a positive optical element and a lens element having a negative optical element, which have a different dispersion from each other; a third lens group having a positive optical power on an optical axis and a radius code of a curvature surface toward an upper surface of which has the same radius code as the radius curvature surface of a cathode ray tube; and a fourth lens group having a high optical power toward an upper surface of the screen for compensating for a field dependent aberration.

Abstract: A neural network provides faster learning speed and simplified overall structure through use of the concept of indirect association and a method for operating the same. The neural network is constructed as a CLCAM comprising an input-side single layer perceptron adapted to realize direct associations (X.sub.i,Z.sub.1i) as linearly separable problems with respect to given inputs (X.sub.i) and first intermediate states (Z.sub.1i) derived by the user, an output-side single layer perceptron adapted to realize direct associations (Z.sub.2i,Y.sub.i) as linearly separable problems with respect to given outputs (Y.sub.i) and second intermediate states (Z.sub.2i) derived by the user, and a location addressable memory adapted to connect said first intermediate states (Z.sub.1i) with said second intermediate states (Z.sub.2i). The neural network is also constructed as HyLCAM comprising a single layer perceptron adapted to realize direct associations (X.sub.i,Z.sub.

Abstract: A lubricating device for a horizontal type hermetic compressor. The device includes an oil cylinder at the back of a spring-biased vane in a compressing cylinder, and also includes an oil piston and an oil valve in the oil cylinder. The oil piston communicates with the oil valve by the movement of the vane, thus to achieve the lubrication oil supply through the oil cylinder. The oil piston is biased by a compression coil spring positioned under the piston, so that it is easy to fabricate the compressor. Since the length of the oil piston is longer than the distance between the upper dead point of the oil pumping chamber and the vane slot reference hole, introduction of refrigerant into the oil cylinder is reliably prevented. This device uses a conventional horizontal type hermetic compressor with a slight change of its construction and easily precisely controls the flow rate of the lubrication oil to be delivered.

Abstract: A fin-tube type heat exchanger having improved heat transfer rate is disclosed. The heat exchanger effectively restricts forming of separation bubbles on the back surfaces of the tubes fitted to the fin bodies, thus to promote smooth air flow in the heat exchanger and to improve heat transfer rate. The heat exchanger has the vertically placed fin bodies, the tubes horizontally penetrating the fin bodies, a plurality of dimples provided on opposed side surfaces of the fin bodies, and separation bubble controllers for reducing the size of separation bubbles formed about the tubes. The bubble controllers are provided on the opposed side surfaces of the fin bodies about the tubes. In another embodiment, the heat exchanger has no bubble controller but reduces the size of the separation bubbles by controlling configurations and directions of the dimples.

Abstract: Automatic tracking control apparatus and method.

Abstract: A section erasure control apparatus for a character generator including a section erasure data receiving circuit for receiving section erasure data a section erasure region control circuit for analyzing the section erasure data and identifying a section erasure region and a decoder for decoding output data from the section erasure region control circuit and outputting an erasure execution signal identifying the section erasure region in accordance with the decoding.

Abstract: Combustion device of a kerosene fan heater, which can inhibit accumulation of tar inside of the carburetor and can improve a mixing efficiency of fuel of kerosene and air.The combustion device includes a spraying means for spraying flammable substance, a vaporizing means for vaporizing the sprayed flammable substance before burning the flammable substance, and a dividing means disposed in the vaporizing means for dividing the sprayed flammable substance and making the divided flammable substance swirl in opposite direction to each other.

Abstract: A character editing system for a VCR, comprising a control circuit for performing on-screen display control and recording control operations for character data in a character editing mode; a character recording circuit for encoding character data, demodulating the encoded data and recording the demodulated data on a selected one of stereo audio tracks of a video tape under a control of the control circuit; an audio reproducing circuit for detecting audio signals and character data from the audio tracks and outputting the detected audio signals to speakers; a video reproducing circuit for detecting video signals from a video track of the video tape and demodulating the detected video signals; and a character output circuit for outputting the character data which is to be recorded or the character data which is reproduced by the audio reproducing circuit, placing the data on the reproduced video signal from the video reproducing circuit, under a control of the control circuit.

Abstract: An apparatus and a method for selecting a station are disclosed in which a count section or a comparison section compares/decides a local oscillation frequency, and a digital/analog converter controls the local oscillation frequency according to the decided result, in order to perform an accurate and stable station selection. The apparatus includes a local oscillator means, a dividing means, a count section or comparison section, a control section, and a digital analog converter. The method includes the steps of controlling the digital/analog converter, dividing, the signal output from the local oscillator outputting correction data, and controlling increase/decrease of the oscillation frequency of the local oscillator according to the correction data.

Abstract: A device and a method for compensating for temperature fluctuations for maintaining the warmth of a cooker having an inverter circuit, which has a system controller which obtains a final compensation data by processing a temperature compensation data outputted from a compensation temperature selection section and a present temperature detected by a temperature detecting section. The system controller outputs a driving signal to drive a bottom heater, a top heater, and a side heater of the cooker according to a calculated final compensation data.

Abstract: A method for correcting digital convergence performed with respect to four modes of NTSC, ED, MUSE and ZENITH only by adjusting the convergence for a single mode on a software basis includes the steps of adjusting a specific mode and calculating correction data based on adjustment data for the specific mode and storing adjustment data and correction data in memory, and calculating correction data of other modes based on correction data stored for the specific mode, thereby remarkably improving the accuracy of the convergence, facilitating adjustment time and adjustment itself, simplifying the system to cut down the price of the system while enabling digital convergence of a multi-sync projection television to apply it to household use and monitors for personnel computers and video conferencing.

Abstract: This invention relates to a method for fabricating a thin film transistor used for LCD which can improve performance and productivity of an element by forming it with atmospheric pressure CVD method including processes for forming a gate electrode having sloped sides on an insulation substrate, forming a gate insulation film a semiconductor layer and a channel protection layer successively with atmospheric pressure chemical vapor deposition method on all over the insulation substrate, patterning the channel protection layer such that the channel protection layer is to have a narrower pattern width than the pattern width of the gate electrode remaining the channel protection layer only on the semiconductor layer over the gate electrode, forming an impurity injected semiconductor layer for making resistive contact by injecting impurities into the semiconductor layer using the channel protection layer as a mask, and forming source and drain electrodes over the channel protection layer, the impurity injected semi