Abstract: A suction brush assembly of a vacuum cleaner has a housing having a suction duct to provide a suction passage for dust, a rotation roller having a plurality of ribs formed at an outer circumference, a wheel disposed at the housing, and a power transmission unit to rotate the rotation member by exerting a rotation force of the wheel to the rotation member when the wheel is rotated. The wheel and the rotation member are rotated in directions opposite to each other by the power transmission unit. When a user wants to clean fabrics such as bedclothes or a carpet, the effect of hitting of the ribs can be firmly secured due to the rotation of the rotation rollers. Therefore, the effect of removing dust remarkably increases.

Abstract: A discrete multi-tone (DMT) processor receives predetermined control signals from a digital signal processor (DSP) within an asymmetric digital subscriber line (ADSL) modem, modulates transmission data in response to the control signals, and demodulates reception data. The DMT processor includes a frame synchronization signal generator, a transmitter, and a receiver. The frame synchronization generator generates a transmission frame synchronization signal and a reception frame synchronization signal in response to a cyclic prefix contained in the transmission data or reception data and a reception synchronization shift signal applied from the DSP. The transmitter DMT modulates and gain-controls the transmission data input in response to the transmission frame synchronization signal The receiver gain-controls and DMT demodulates the reception data response to the reception frame synchronization.

Abstract: An apparatus and method for regenerating reset and clock signals and a high-speed digital system using the apparatus and method are provided. In the regenerating circuit of the invention, a clock circuit receives an external clock signal and generates there from an internal clock signal, which is forwarded to a plurality of clocked circuits such as, for example, D flip-flops. A reset circuit receives an external reset signal and generates therefrom an internal reset signal, which is forwarded to the clocked circuits to reset the clock circuits. A clock masking circuit masks the internal clock signal for a masking period such that the clocked circuits are not clocked during the masking period. The high-speed digital system of the invention includes a plurality of function blocks coupled on a bus. The reset and clock regenerating circuit of the invention generates internal reset and clock signals from externally applied reset and clock signals.

Abstract: A cyclone-type dust-collecting apparatus for use in a vacuum cleaner has a cyclone body having an inflow port and an outflow port, the cyclone body being capable of forming a whirling air current from dust-laden air drawn into the vacuum cleaner through the inflow port; a dust-collecting chamber being removably connected with the cyclone body, for collecting dust separated from the drawn air in the whirling air current; and a grill assembly disposed at the outflow port of the cyclone body for preventing a reverse flow of dust through the outflow port of the cyclone body. The grill assembly has a first grill member having a supporting portion supported on the outflow port of the cyclone body; a second grill member removably connected to a lower opening of the first grill member; and a grill portion provided to define a passage in fluid communication with the outflow port in an outer circumference of the second grill member.

Abstract: A turbine brush for a vacuum cleaner comprises a brush body having an upper casing and a lower casing, and the lower casing having a suction slot through which air is drawn in from a surface being cleaned, an agitator unit having bristles at predetermined intervals, a turbine unit rotatably supported within the lower casing and being rotated by the air drawn into the turbine brush by suction force generated by the vacuum cleaner, and a power transfer unit to cause the agitator unit and the turbine unit to rotate in association with each other. When cleaning surfaces having loose material, such as a blanket or other fabric, the suction slot of the lower casing includes a plurality of ribs to inhibit the blanket or other fabric from being drawn into the brush body by the suction force generated by the vacuum cleaner. The bristles are in contact with the surface being cleaned by passing through apertures in the suction slot defined by the plural ribs.

Abstract: Disclosed is a toner composition for an inorganic black matrix used for a color filter that is an important part of TFT-LCD by dispersing the fine particles of an inorganic pigment such as carbon black powder in a block copolymer solution having a high molecular weight and containing a pigment affinity group, and a preparation method thereof. It is the recent trend of the worldwide market to use a toner composition prepared by the pigment dispersion method in the manufacture of the organic black matrix. Thus the present invention provides a toner composition necessary to the manufacture of an organic black matrix and its preparation method using the pigment dispersion method, which involves mixing a block copolymer solution having a high molecular weight and containing a specific pigment affinity group, a inorganic pigment having electrical properties such as conductivity and optical density, a solvent and a dispersion adjuvant and applying optimized dispersion-mixing and dispersion equipment.

Abstract: An apparatus for converting image format and methods thereof in a video signal processing system.

Abstract: An apparatus and method for regenerating reset and clock signals and a high-speed digital system using the apparatus and method are provided. In the regenerating circuit of the invention, a clock circuit receives an external clock signal and generates there from an internal clock signal, which is forwarded to a plurality of clocked circuits such as, for example, D flip-flops. A reset circuit receives an external reset signal and generates therefrom an internal reset signal, which is forwarded to the clocked circuits to reset the clock circuits. A clock masking circuit masks the internal clock signal for a masking period such that the clocked circuits are not clocked during the masking period. The high-speed digital system of the invention includes a plurality of function blocks coupled on a bus. The reset and clock regenerating circuit of the invention generates internal reset and clock signals from externally applied reset and clock signals.

Abstract: A dust collecting filter for an vacuum cleaner capable of being reused after being emptied and washed The dust collecting filter comprises a filter casing having a backside surface and a side surface vertically extended from an edge of the backside surface to thereby define a predetermined space therein, the backside surface having an air discharging hole formed therein to fluid-communicate with the air outlet, a cover having an air inflow hole fluid-communicating with the air inlet and separably connected with the filter casing, and a dust filtering means mounted in the filter casing, for filtering dust from the air that is drawn in through the air inflow hole and discharged through the air discharging hole. Accordingly, since the dust collecting filter can be reused after being emptied and washed, it is not required to replace the dust collecting filter. Also, since the filter is designed to prevent the propagation of the bacteria, it can keep the cleanliness of the environment.

Abstract: A cyclone-type dust-collecting apparatus for use in a vacuum cleaner has a cyclone body having an inflow port and an outflow port, the cyclone body being capable of forming a whirling air current from dust-laden air drawn into the vacuum cleaner through the inflow port; a dust-collecting chamber being removably connected with the cyclone body, for collecting dust separated from the drawn air in the whirling air current; and a grill assembly disposed at the outflow port of the cyclone body for preventing a reverse flow of dust through the outflow port of the cyclone body. The grill assembly has a first grill member having a supporting portion supported on the outflow port of the cyclone body; a second grill member removably connected to a lower opening of the first grill member; and a grill portion provided to define a passage in fluid communication with the outflow port in an outer circumference of the second grill member.

Abstract: A liner for a branch pipe of an old repaired pipe lined with a polyethylene liner, the liner comprising: a branch pipe portion made of a tubular body, the branch pipe portion being insertable into an existing branch pipe branching from the old repaired pipe; a welding plate provided at a first end of the branch pipe portion, the welding plate having a top surface to be welded to an inner surface of the polyethylene liner and being formed to have a curvature corresponding the an inner surface of the old repaired pipe; at least one O-ring attached tightly to an outer circumferential surface of a second end of the branch pipe portion; an expandable pressing ring for pressing against an inner surface portion of the second end of the branch pipe portion adjacent to the O-ring to force the O-ring to form a watertight seal against the existing branch pipe; an expanding key for holding the pressing ring in an expanded position to maintain the pressure of the pressing ring against the second end of the branch pipe por

Abstract: The present invention provides asymmetric digital subscriber line (ADSL) modems including a discrete multitone (DMT) modem module. The DMT modem module includes a digital signal processor (DSP) configured to process control signals for initializing the ADSL modem during installation associated with a host device and transmit the processed control signals to a host controller of the host device.

Abstract: A suction brush assembly of a vacuum cleaner has a housing having a suction duct to provide a suction passage for dust, a rotation roller having a plurality of ribs formed at an outer circumference, a wheel disposed at the housing, and a power transmission unit to rotate the rotation member by exerting a rotation force of the wheel to the rotation member when the wheel is rotated. The wheel and the rotation member are rotated in directions opposite to each other by the power transmission unit. When a user wants to clean fabrics such as bedclothes or a carpet, the effect of hitting of the ribs can be firmly secured due to the rotation of the rotation rollers. Therefore, the effect of removing dust remarkably increases.

Abstract: A liner for a branch pipe of an old repaired pipe lined with a polyethylene liner, the liner comprising: a branch pipe portion made of a tubular body, the branch pipe portion being insertable into an existing branch pipe branching from the old repaired pipe; a welding plate provided at a first end of the branch pipe portion, the welding plate having a top surface to be welded to an inner surface of the polyethylene liner and being formed to have a curvature corresponding the an inner surface of the old repaired pipe; at least one O-ring attached tightly to an outer circumferential surface of a second end of the branch pipe portion; an expandable pressing ring for pressing against an inner surface portion of the second end of the branch pipe portion adjacent to the O-ring to force the O-ring to form a watertight seal against the existing branch pipe; an expanding key for holding the pressing ring in an expanded position to maintain the pressure of the pressing ring against the second end of the branch pipe por

Abstract: Disclosed is a toner composition for an inorganic black matrix used for a color filter that is an important part of TFT-LCD by dispersing the fine particles of an inorganic pigment such as carbon black powder in a block copolymer solution having a high molecular weight and containing a pigment affinity group, and a preparation method thereof. It is the recent trend of the worldwide market to use a toner composition prepared by the pigment dispersion method in the manufacture of the organic black matrix. Thus the present invention provides a toner composition necessary to the manufacture of an organic black matrix and its preparation method using the pigment dispersion method, which involves mixing a block copolymer solution having a high molecular weight and containing a specific pigment affinity group, a inorganic pigment having electrical properties such as conductivity and optical density, a solvent and a dispersion adjuvant and applying optimized dispersion-mixing and dispersion equipment.

Abstract: An apparatus for converting image format and methods thereof in a video signal processing system.

Abstract: A discrete multi-tone (DMT) processor in an asymmetric digital subscriber line (ADSL) modem receives predetermined control signals from a digital signal processor (DSP) within an asymmetric digital subscriber line (ADSL) modem, modulates transmission data in response to the control signals, and demodulates reception data. The DMT processor includes a frame synchronization signal generator, a transmitter, and a receiver. The frame synchronization generator generates a transmission frame synchronization signal and a reception frame synchronization signal in response to a cyclic prefix contained in the transmission data or reception data and a reception synchronization shift signal applied from the DSP. The transmitter DMT modulates and gain-controls the transmission data input through a first input terminal in response to the transmission frame synchronization signal and outputs the modulated and gain-controlled result through a first output terminal.

Abstract: An apparatus for converting image format and methods thereof in a video signal processing system.

Abstract: A buffer memory controller allows to sequentially store sampled data having variable bit length. That is, rather than assigning each sampled data to a single word of the memory, the sampled data is sequentially stored head to tail so that memory space is not wasted.