Abstract: A dust separation device includes: an air inlet, a dust collection chamber to collect dust in air flowing in from an air inlet, a rotating body rotatable inside the dust collection chamber and including a blocking member formed to block dust from the air flowing in from the air inlet, a motor to rotate the rotating body, a fixing body arranged to be spaced apart from the rotating body and supporting the motor, and a sealing member configured to seal at least a portion of a gap portion formed between the rotating body and the fixing body to prevent dust from entering the gap portion, the sealing member including a brush in contact with at least one of the rotating body and the fixing body.

Abstract: A cleaner according to the present disclosure comprises: a body; a suction head connected to one side of the body so as to suction foreign matter from a surface to be cleaned; and a motor assembly received in a motor case formed inside the body, so as to generate suction force, wherein: the motor assembly comprises a motor, an impeller disposed on one side of the motor and connected to the motor so as to introduce air, and a vibration isolator coupled to the other side of the motor and having a plurality of support protrusions protruding from the outer circumferential surface thereof; and the coupling between the plurality of support protrusions and the motor case causes the motor assembly to be spaced apart from the motor case.

Abstract: A processor system having a memory device including a (RAM) memory and a direct memory access controller (DMAC) and an internal bus switchably connected between the memory and the DMAC. A Bus Switch (multiplexer) within the memory device alternately establishes a first data transmission path over the system bus between the memory and an external processor, and a second data transmission path over the internal bus between the memory and the DMAC. The first data transmission path, when established through the Bus Switch, supports random access of the memory by the external processor. The second data transmission path, when established through the Bus Switch, supports a Direct Memory Access (DMA) between the RAM and an external storage device, e.g., a Nonvolatile Memory (NVM), connected to the DMAC while the processor has full and exclusive use of the system bus.