Abstract: The present invention, which relates to an apparatus for collecting data at multi-points, suggests an apparatus connecting analog blocks obtaining the same channel data in series with each other and connecting analog blocks obtaining different channel data in parallel with each other to collect data. The suggested apparatus includes a channel data collecting group including at least two channel data collecting units having data obtaining modules collecting channel data at different points and connected in series with each other; and a channel data processing unit including the channel data collecting units connected in parallel with each other and controlling each of the data obtaining module so as to allow each of the channel obtaining module to shift the channel data by a predetermined size.

Abstract: A robot cleaner that travels straight through alignment of drive wheels to move the robot cleaner and a method of controlling travel of the same. Information related to a movement angle of the robot cleaner is detected from angle information of a caster wheel rotating depending upon a state of a floor, such as a carpet in a state in which texture of the carpet occurs in one direction, and, when the movement angle of the robot cleaner deviates due to slippages of the drive wheels, rates of rotation of the drive wheels are adjusted to correct the slippages of the drive wheels such that the robot cleaner easily travels straight.

Abstract: A built-in antenna device for an electronic device for communication used in a multi-band is provided. The built-in antenna device includes a PCB, a first antenna radiator disposed on the PCB, and a second antenna radiator which has the same power feeding point as the first antenna radiator and is disposed at a housing of the electronic device, wherein the first antenna radiator and the second antenna radiator are configured to operate at different frequency bands.

Abstract: Disclosed herein is an autonomous cleaning machine with a brush cleaning unit to clean a brush unit. The autonomous cleaning machine includes a main body, the brush unit rotatably provided on the main body, first brush cleaning members contacting the brush unit to move foreign substances wound on the brush unit in a lengthwise direction of the brush unit, and second brush cleaning members contacting the brush unit to remove the foreign substances wound on the brush unit from the brush unit.

Abstract: A cleaning apparatus including a main body, a dust collection unit detachably installed on the main body and provided with a plurality of inlets, through which foreign substances are introduced into the dust collection unit, and a connection hole, to which an external instrument is connected, a shutter to open and close one inlet, and a cap to open and close the connection hole. The shutter opens and closes the inlet in cooperation with one of whether or not the dust collection unit is attached to or detached from the main body and whether or not the connection hole is opened or closed.

Abstract: Disclosed are a carbon nanomaterial pellet and a method for preparing same. More particularly, it relates to a carbon nanomaterial pellet having a specific size and a high apparent density prepared by a simple process using only a rotary tablet press without mixing a carbon nanomaterial powder with a solvent or an additive, which is capable of solving the powder dust problem occurring when preparing a polymer composite from a carbon nanomaterial in the form of powder, thus improving physical properties and remarkably reducing cost of packaging and transportation, and a method for preparing the carbon nanomaterial pellet from a carbon nanomaterial powder.

Abstract: Provided is a time-domain voltage comparator including a voltage-time converter. The voltage-time converter includes a conversion unit and an output unit. The conversion unit includes a first MOS transistor which shifts a voltage level of the first detection node according to an external first voltage signal, and a second MOS transistor which shifts a voltage level of the second detection node according to an external second voltage signal. The output unit generates first and second output signals in response to voltages of the first and second detection nodes. The output unit determines a shifted time of the first output signal according to a voltage level of the first detection node and determines a shifted time of the second output signal according to a voltage level of the second detection node.

Abstract: In the example embodiments, test signals sent from a transmitting system are received at a receiving system. The receiving system generates a determination signal indicating, in one embodiment, whether received signals have a desired relationship with respect to a clock signal at the receiving system. Timing of the clock signal or timing for transmitting signals may be adjusted based on the determination. In another embodiment, the receiving system generates a determination signal indicating whether the pulse width of a lone pulse signal equals a desired time interval. Equalization or pre-emphasis is controlled based on the determination signal.

Abstract: Disclosed herein is an autonomous cleaning machine with a brush cleaning unit to clean a brush unit. The autonomous cleaning machine includes a main body, the brush unit rotatably provided on the main body, first brush cleaning members contacting the brush unit to move foreign substances wound on the brush unit in a lengthwise direction of the brush unit, and second brush cleaning members contacting the brush unit to remove the foreign substances wound on the brush unit from the brush unit.

Abstract: A cleaning apparatus including a main body, a dust collection unit detachably installed on the main body and provided with a plurality of inlets, through which foreign substances are introduced into the dust collection unit, and a connection hole, to which an external instrument is connected, a shutter to open and close one inlet, and a cap to open and close the connection hole. The shutter opens and closes the inlet in cooperation with one of whether or not the dust collection unit is attached to or detached from the main body and whether or not the connection hole is opened or closed.

Abstract: A built-in antenna apparatus for a Global Positioning System (GPS) of a portable terminal is provided. The apparatus includes a case frame for forming an exterior of the terminal, a main board fastened by the case frame and having a feeding portion and a ground portion of an antenna radiator, and an antenna radiator having a feeding point and ground point to be electrically connected to the feeding portion and ground portion of the main board, and is curved in a horizontal direction and a vertical direction of the terminal about a center of one upper-side corner of the terminal.

Abstract: A cleaning system includes a robot cleaner having an opening unit and a first dirt container funneled to the opening unit, and a maintenance station to which robot cleaner is docked to discharge dirt stored in the first dirt container The maintenance station includes a first inlet hole configured to intake dirt from the first dirt container through the opening unit, a first outlet hole configured to blow air into the first dirt container, a circulating passage provided between the first inlet hole and the first outlet hole, a second dirt container disposed on the circulation passage to store dirt taken in from the robot cleaner, a draft apparatus having a draft fan and a fan motor to drive the draft fan to circulate air through the circulating passage, and a second outlet hole configured to discharge air inside the circulating passage of the maintenance station to an outside.

Abstract: A driving wheel assembly and a robot cleaner having the same includes a main body and a driving wheel assembly including a driving wheel, a housing, a driving motor, a rotary member with rotation around a rotation shaft of the driving motor, where the rotary member includes a first unit and a second unit disposed at a position opposite to the driving wheel with respect to the rotation shaft of the driving motor, and a compression coil spring disposed between the housing and the second unit to apply pressure to the second unit, where a distance between a contact point where the compression coil spring and the second unit contact and the rotation shaft of the driving motor is shorter than a distance between a rotation shaft of the driving wheel and a rotation shaft of the driving motor.

Abstract: An autonomous cleaning apparatus including a body, a brush unit which is rotatably installed onto the body to collect dust from a bottom of the body, and a brush cleaning member including a first brush cleaning protrusion and a second brush cleaning protrusion that protrude toward the brush unit to make contact with the brush unit to remove foreign substances wound around the brush unit.

Abstract: An autonomous cleaner has an enhanced structure capable of conducting an efficient cleaning task according to the material quality or the condition of the floor surface of a cleaning space. The autonomous cleaner includes a body, a driving wheel to drive the body, a driving wheel assembly having the driving wheel, and a control unit. The control unit detects a displacement of the driving wheel corresponding to a reference position by sensing a sensor target, determines material quality or condition of a floor surface according to the displacement of the driving wheel, and controls the driving of the autonomous cleaner according to the determined material quality or the condition of the floor surface.

Abstract: A robot cleaner having an improved structure which executes a cleaning operation without stoppage of travelling of the robot cleaner due to obstacles present in a space to be cleaned, and a control method thereof. The control method of the robot cleaner which is provided with a main body, driving wheels driving the main body, and driving wheel assemblies, each of which includes each driving wheel, includes detecting displacement of each driving wheel with respect to a reference position by sensing a sensed body provided on each driving wheel assembly, judging whether or not the displacement is within a predetermined reference range, and changing a travelling path of the main body, upon judging that the displacement deviates from the reference range.

Abstract: A step climbing device for moving robots including a climbing guide provided with an inclined surface formed on the upper surface thereof so as to allow a moving robot to climb a step through the inclined surface of the climbing guide.

Abstract: A memory controller includes an I/O circuit, a read latency detector and a clock domain synchronizer. The I/O circuit transmits a first signal to a semiconductor memory device, receives a reflected signal returned from the semiconductor memory device, and delays the reflected signal in response to a delay selection signal to generate a second signal. The reflected signal is provided by reflection of the first signal from the semiconductor memory device. The read latency detector generates the first signal in response to a system clock signal, and generates a read latency signal in response to the system clock signal, a hold signal, and the second signal. The clock domain synchronizer generates the delay selection signal and the hold signal in response to the system clock signal and the second signal.

Abstract: In the example embodiments, test signals sent from a transmitting system are received at a receiving system. The receiving system generates a determination signal indicating, in one embodiment, whether received signals have a desired relationship with respect to a clock signal at the receiving system. Timing of the clock signal or timing for transmitting signals may be adjusted based on the determination. In another embodiment, the receiving system generates a determination signal indicating whether the pulse width of a lone pulse signal equals a desired time interval. Equalization or pre-emphasis is controlled based on the determination signal.

Abstract: A robot cleaning device includes a debris detecting unit. The robot cleaning device includes a body, a driving unit to enable the body to travel, a drum brush unit provided at the body, to sweep up debris, using a brush and a rotating drum, a debris box to store the debris swept up by the drum brush unit, a debris detecting unit to detect whether debris has been introduced into the debris box through the drum brush unit during a cleaning operation, and a controller to determine whether debris is introduced into the debris box and whether debris has been accumulated in the debris box in a predetermined amount, based on introduction or non-introduction of debris detected by the debris detecting unit.