Abstract: Disclosed herein are an apparatus and method for monitoring the duty cycle of a memory clock signal. The apparatus for monitoring a duty cycle of a memory clock signal includes a clock frequency converter configured to generate a second monitoring target clock signal by decreasing a frequency of a first monitoring target clock signal while maintaining a duty cycle of the first monitoring target clock signal, and a pulse counter configured to measure a pulse width of the second monitoring target clock signal using a reference clock signal.

Abstract: Proposed is a detachable lighting device including lighting units. The positions of the lighting units are changeable along a mounting rail within an interior space. The number of the lighting units and the mounting positions of the lighting units are adjustable. Accordingly, occupants within the interior space adjust light distribution as desired by each occupant.

Abstract: Proposed is a detachable lighting device including lighting units. The positions of the lighting units are changeable along a mounting rail within an interior space. The number of the lighting units and the mounting positions of the lighting units are adjustable. Accordingly, occupants within the interior space adjust light distribution as desired by each occupant.

Abstract: Disclosed is a copolymer as PAES-g-PEG or PAEK-g-PEG as an arylene-based polymer having ion conductivity and mechanical strength and having a functional group as a substituent at a chain-end of PEG, wherein the functional group includes one selected from a group consisting of a hydroxyl group (—OH), methacrylate (-MA), a double hydroxyl group (-2OH), a nitrile group (—CN) and an ionic liquid group (-PYRTFSI). Further, disclosed is a solid electrolyte membrane for a secondary battery including the copolymer and thus having improved ion conductivity, lithium ion transport ability, and excellent mechanical strength.

Abstract: A marker composition, a kit, a gene panel, and a method which are for providing information for predicting the occurrence of, diagnosing, or treating age-related macular degeneration are disclosed. The marker composition, kit, gene panel, and method are novel tools that can provide information for predicting the occurrence of, diagnosing, or treating age-related macular degeneration, and has excellent sensitivity and can be easily analyzed without the use of a biopsy, and thus can be effectively used for the early diagnosis of age-related macular degeneration.

Abstract: Disclosed is a copolymer as PAES-g-PEG or PAEK-g-PEG as an arylene-based polymer having ion conductivity and mechanical strength and having a functional group as a substituent at a chain-end of PEG, wherein the functional group includes one selected from a group consisting of a hydroxyl group (—OH), methacrylate (-MA), a double hydroxyl group (-2OH), a nitrile group (—CN) and an ionic liquid group (-PYRTFSI). Further, disclosed is a solid electrolyte membrane for a secondary battery including the copolymer and thus having improved ion conductivity, lithium ion transport ability, and excellent mechanical strength.

Abstract: Disclosed is an electrolyte membrane for a lithium secondary battery including a compound in which PEG is grafted to PAES or PAEK as a main chain or a block copolymer between PAES or PAEK and PEG, thereby to have excellent ionic conductivity and adhering property. Disclosed is a binder for a lithium secondary battery including a compound in which PEG is grafted to PAES or PAEK as a main chain or a block copolymer between PAES or PAEK and PEG, thereby to have excellent ionic conductivity and adhering property. Further, disclosed is a membrane-electrode structure for lithium secondary batteries having the electrolyte membrane and the binder. Further, disclosed is a manufacturing method of each of the electrolyte membrane, the binder, and the structure.

Abstract: Disclosed is an active power factor correction integrated circuit for a boost converter, comprising a bias voltage generator coupled to an external power source through a first pin, for generating internal bias voltages used for the integrated circuit; a zero crossing detector coupled magnetically to the inductor through a second pin, for detecting a time at which a voltage across the inductor is zero to provide a zero crossing detection signal; an oscillator reset by the zero crossing detection signal for generating a pulse signal; a flip-flop for generating a first control signal in response to the zero crossing detection signal or the pulse signal; a switching element responsive to the first control signal for enabling a boosted voltage to be provided to the load; an over-current detector for generating an over-current signal when a current flowing through the switching element is over a predetermined value; and a voltage variation detector for detecting variation of a load voltage to generate a variation

Abstract: An analog oscillator for an integrated circuit operates at low frequency with reduced sensitivity to noise and can be implemented with a capacitor that takes up a small amount of die space. The oscillator charges a capacitor by generating a current with a charge current source and then shunting a portion of the current away from the capacitor with a shunt current source. The current sources are implemented in bipolar transistors which are operated at high current to reduce sensitivity to noise. The capacitor is charged slowly by a small difference current which is equal to the difference between the current from the charge current source and the current from the shunt current source. A Schmitt trigger comparator compares the capacitor voltage to a reference voltage and controls a discharge current source which discharges the capacitor. The current sources include current mirrors and are temperature compensated.

Abstract: Disclosed herein are a transformer and a method of manufacturing the same. The transformer includes: a primary side winding having a loop shape; a secondary side winding formed on the same plane as that of the primary side winding in a remaining section except for at least a section at which it intersects with the primary side winding and having the same loop shape as that of the primary side winding so as to be electromagnetically coupled to the primary side winding; and an intersecting section formed so that the primary side and secondary side windings having the sum of the turn numbers of 3 or more intersect with each other in a two-layer structure, wherein the intersecting section includes at least one point of intermediate node having one side connected in a first layer and the other side connected in a second layer.