Abstract: A robot cleaner including: a main body, a driving unit configured to move the main body, and a suction device provided in the main body and configured to suction outside foreign substances, and the suction device may include a first suction member having a suction port provided at a bottom surface of the main body and configured to suction the foreign substances, and at least one second suction member formed to move relative to the first suction member and having a suction port configured to suction the foreign substances.

Abstract: A grease filter, which includes a first channel having an inlet portion through which oil particles flow in, and a first guide unit configured to guide the oil particles flowing in through the inlet portion, and a second channel having an outlet portion through which the oil particles and air current flowing in through the inlet portion is discharged into the outside, and at least one second guide unit configured to guide the oil particles and air current to be discharged through the outlet portion. Here, the first channel and the second channel are detachably provided. The grease filter can be easily repaired and maintained, and collection efficiency can be improved due to such a configuration.

Abstract: A cleaner includes a case which includes an inlet for suctioning in rubbish on a surface to be cleaned, a driver which is provided inside the case and includes a motor which generates power, a drum body which is provided in the inlet and configured to receive the power from the driver and rotate, and a drum blade arranged in an outer circumferential direction of the drum body and formed with a blade air current hole through which air suctioned in through the inlet passes.

Abstract: A grease filter, which includes a first channel having an inlet portion through which oil particles flow in, and a first guide unit configured to guide the oil particles flowing in through the inlet portion, and a second channel having an outlet portion through which the oil particles and air current flowing in through the inlet portion is discharged into the outside, and at least one second guide unit configured to guide the oil particles and air current to be discharged through the outlet portion. Here, the first channel and the second channel are detachably provided. The grease filter can be easily repaired and maintained, and collection efficiency can be improved due to such a configuration.

Abstract: An electronic device includes a semiconductor memory, and the semiconductor memory includes a memory cell including a resistive memory element having a high resistance state and a low resistance state according to stored data, a selection element coupled serially to the resistive memory element, and a current clamping transistor electrically connected to a first end of the memory cell to limit an amount of a current flowing through the memory cell. In a drift recovery operation of the memory cell, a rising pulse voltage may be applied to a second end of the memory cell in a state in which the current clamping transistor has been turned off, the first end facing the second end.

Abstract: A cleaner includes a case which includes an inlet for suctioning in rubbish on a surface to be cleaned, a driver which is provided inside the case and includes a motor which generates power, a drum body which is provided in the inlet and configured to receive the power from the driver and rotate, and a drum blade arranged in an outer circumferential direction of the drum body and formed with a blade air current hole through which air suctioned in through the inlet passes.

Abstract: The robotic cleaner includes a cleaner body that is movable and a suction unit that is movable relative to the cleaner body in a vertical direction. The suction unit includes an inlet for sucking impurities from the surface to be cleaned, and at least one support unit for spacing the inlet and the surface to be cleaned. With the configuration, the foreign substance suction efficiency from the surface to be cleaned may be improved, and a constant gap between the suction portion and the surface to be cleaned may be maintained.

Abstract: Disclosed herein is an over-the-range oven including a body provided with a suction port and an exhaust port, an air blower unit causing air to be suctioned through the suction port and discharged through the exhaust port, and an air curtain unit movably installed at a lower portion of the body to generate an air curtain by discharging air. Since the air curtain unit is movable between a first position at which the air curtain unit is disposed close to the body and a second position at which the air curtain unit protrudes from the body, it may allow gas produced by a cooking apparatus disposed below the air curtain unit to be efficiently discharged.

Abstract: An electronic device includes a semiconductor memory. The semiconductor memory may include: a memory circuit comprising a plurality of memory cells; a read circuit configured to generate a first read data signal by reading data from a read target memory cell according to a first read control signal, the read target memory cell being among the plurality of memory cells; and a control circuit configured to control the read circuit to reread the data from the read target memory cell by generating a second read control signal, the second read control signal being based on a data value of the first read data signal.

Abstract: A suction nozzle, and a vacuum cleaner, and a robot cleaner includes a housing having a suction port formed on a bottom surface thereof and a suction flow path formed on an inside thereof to communicate with the suction port, and a vibration cleaning unit arranged on the suction flow path to pass therethrough air including pollutants that flows in through the suction port, wherein the vibration cleaning unit includes a vibration source, a vibration transfer frame configured to accommodate the vibration source, and a vibration bar configured to receive vibration transferred from the vibration transfer frame to resonate.

Abstract: Disclosed is a vacuum cleaner including a flow path to guide air suctioned or discharged and a resonator connected to the flow path. The resonator is configured to change a resonance frequency to be canceled. Therefore, when the noise generated by changing operation modes of the vacuum cleaner is changed, the noise may be cancelled by changing the resonance frequency of the resonator.

Abstract: A robot cleaner including: a main body, a driving unit configured to move the main body, and a suction device provided in the main body and configured to suction outside foreign substances, and the suction device may include a first suction member having a suction port provided at a bottom surface of the main body and configured to suction the foreign substances, and at least one second suction member formed to move relative to the first suction member and having a suction port configured to suction the foreign substances.

Abstract: A cleaner includes a case which includes an inlet for suctioning in rubbish on a surface to be cleaned, a driver which is provided inside the case and includes a motor which generates power, a drum body which is provided in the inlet and configured to receive the power from the driver and rotate, and a drum blade arranged in an outer circumferential direction of the drum body and formed with a blade air current hole through which air suctioned in through the inlet passes.

Abstract: A grease filter, which includes a first channel having an inlet portion through which oil particles flow in, and a first guide unit configured to guide the oil particles flowing in through the inlet portion, and a second channel having an outlet portion through which the oil particles and air current flowing in through the inlet portion is discharged into the outside, and at least one second guide unit configured to guide the oil particles and air current to be discharged through the outlet portion. Here, the first channel and the second channel are detachably provided. The grease filter can be easily repaired and maintained, and collection efficiency can be improved due to such a configuration.

Abstract: Disclosed herein is an over-the-range oven including a body provided with a suction port and an exhaust port, an air blower unit causing air to be suctioned through the suction port and discharged through the exhaust port, and an air curtain unit movably installed at a lower portion of the body to generate an air curtain by discharging air. Since the air curtain unit is movable between a first position at which the air curtain unit is disposed close to the body and a second position at which the air curtain unit protrudes from the body, it may allow gas produced by a cooking apparatus disposed below the air curtain unit to be efficiently discharged.