Abstract:
Provided is a driving device for a full automatic washing machine in which a clutch unit can stop rotation of a dehydration axis without having a particular brake unit, since the clutch unit is closely adhered to a first dehydration axis and a bushing when the rotation of the dehydration axis is controlled according to a wash or dehydration stroke in a full automatic washing machine. In addition, since a clutch coupler of the clutch unit moves at a wash or dehydration stroke in a driving device of a washing machine to thus be attached to and detached from a clutch gear which controls rotation of the first dehydration axis, and to thereby control a rotational force which is transferred to an inner tub, the washing machine is embodied to have a simple clutch coupling structure. Further, a double-rotor and a single-stator of a brushless direct-current (BLDC) motor which is applied to a driving device of a washing machine are insert-molded into a waterproof structure, to thus maximize a contact area of a bulk molding compound (BMC) molding material to thereby maximize durability.
Abstract:
Provided are an open home network framework and a method for operating the same. The method includes: forming an user application layer having interfaces to manage an individual service application software and a platform; forming a core framework layer having a framework management function based on an individual service control logic and service control logic for hardware-dependent control; forming a communication layer to process hardware interworking services; forming a service application programming interface (API) for providing interworking interfaces between the user application layer and the core framework layer; forming an adaptor for providing interworking interfaces between service components and legacy components; and forming a communication API for providing hardware-independence between the core framework layer and the communication layer to control a hardware and a device.
Abstract:
Disclosed is a wavelength division multiplexing passive optical network (WDM PON) system in which an optical signal outputted from a central office is injected into a Fabry-Perot laser diode (F-P LD) as the light source of an optical network unit, so that the output wavelength of the optical network unit is injection-locked at the same wavelength as that of the optical signal outputted from the central office, thereby enabling the optical network unit to output an optical signal having the same wavelength as that of the optical signal outputted from the central office. In accordance with this system, it is possible to transmit and receive forward and backward data at the same wavelength by the unit of channels. Since inexpensive F-P LDs are used as respective light sources of the central office and optical network units, it is possible to efficiently and economically implement a WDM PON system.
Abstract:
A row decoder preventing leakage current and a semiconductor memory device including the same are provided. The row decoder includes an address decoder and a selection signal generator. The address decoder decodes a predetermined address signal and activates an enable signal. The selection signal generator electrically connects a boosted voltage node to an output node to activate a block selection signal when the enable signal is activated and electrically breaks a path between the boosted voltage node and the output node and a path between the boosted voltage node and a ground voltage node when the enable signal is deactivated. The selection signal generator includes a feedback circuit, a switch, and a direct current (DC) path breaker. The feedback circuit is electrically connected to the output node to generate an output voltage that varies with a voltage level of the block selection signal. The switch transmits the output voltage of the feedback circuit to the output node. The DC path breaker turns on the switch when the enable signal is activated and turns off the switch when the enable signal is deactivated. Accordingly, when a supply voltage applied to the semiconductor memory device is low, a DC path is broken in the row decoder, thereby preventing the leakage current.
Abstract:
Disclosed is a seat belt buckle. The seat belt buckle comprises a body frame; a release button slidably coupled to the body frame for unlatching a seat belt tongue from the seat belt buckle; a locking lever capable of being pivotally rotated about wings by a predetermined angle; a slider for supporting and fixing the locking lever; and an ejector for pushing the tongue in a longitudinal direction which is a lengthwise direction of the body frame. The body frame has an arch-shaped supporting beam which is integrally formed with the body frame in a manner such that the supporting beam is erected in a vertical direction. The supporting beam serves to limit movement of the slider and increase structural rigidity of the seat belt buckle. The slider has a width which is greater than that of the body frame and possesses shock-absorbing means for increasing durability of the seat belt buckle. The slider is formed with inclined projections. The release button has at least two release projections which are formed with inclined surfaces which are in turn brought into contact with the inclined projections of the slider.
Abstract:
A data input/output line sensing circuit includes a latch sense circuit having the double functions of performing a latch operation and a sensing operation for data read from a memory cell. The latch sense circuit includes a first inverter having an input end connected to one of the data input/output lines, and an output end connected to the other of the data input/output lines; a first switching transistor provides the first inverter with a power supply voltage and a ground voltage only during a sensing operation in response to a sensing control signal; a second inverter having an input end connected to the output of the first inverter, and an output end connected to the input of the first inverter; and a second switching transistor provides the second inverter with the power supply voltage and the ground voltage only during the sensing operation in response to the sensing control signal.