Abstract: A driving device of a flat panel display configured to receive an image signal and a clock signal includes a driving circuit configured to convert the image signal into pixel data and output the pixel data, a timing controller configured to generate and output a vertical synchronization signal, a horizontal synchronization signal, a source change enable signal, and a display enable signal using the image signal and the clock signal, an output buffer including an input terminal configured to receive the pixel data and an output terminal connected to the flat panel display, and a buffer controller connected to the timing controller and the output buffer and configured to control a bias current, applied to the output buffer, to be decreased by a value during a period.

Abstract: The present invention relates to novel pyridine nucleoside compounds, Neopetroside A (NPS A) and Neopetroside B (NPS B) obtained by fractionating an extract of Neopetrosia sp. which is a marine sponge, with ethanol, into n-butanol (n-BuOH). When the NPS A was treated with myocardial cells, it activates oxidative phosphorylation, basal and mitochondrial respiration induced by ATP and ATP synthesis, and stimulates the glycolysis activity and when the NPS A was treated with an ischemic reperfusion injury model, the left ventricular pressure injured by ischemic reperfusion was recovered and the size of myocardial injury site was significantly reduced and as a result, can be provided as the pharmaceutical composition for preventing or treating ischemic heart disease or the health functional food for preventing or improving the same.

Abstract: A source driver apparatus for a display panel includes source drivers and a slew rate controller. Each of the source drivers includes a data latch, a decoder, and an output buffer. The data latch is configured to hold sub-pixel data. The decoder is configured to decode the sub-pixel data held in the data latch to provide a driving signal. The output buffer has an adjustable slew rate and is configured to buffer the driving signal to provide a buffered driving signal. The slew rate controller is configured to analyze the sub-pixel data in the data latch in each of the source drivers and dynamically control the slew rate of the output buffer in each of the source drivers.

Abstract: There is provided a current controlling mode DC-DC converter that operates in a PWM mode or a PFM mode by adjusting a turned-on time of a gate depending on power consumption of a load. The DC-DC converter includes a first comparator that receives a first input voltage and a second input voltage and outputs a first output signal, a second comparator that receives a reference voltage for mode switching and the second input voltage and outputs a second output signal, and a first logic element that outputs a reset signal for turning off a gate at a point of time when both the first output signal and the second output signal are applied. Examples may also include additional elements to facilitate mode switching.

Abstract: A Light Emitting Diode (LED) driving apparatus and a method of driving a LED backlight unit are provided. An LED driving apparatus includes: an input unit configured to receive a dimming signal, an extension unit configured to extend ON time of the inputted dimming signal, an LED driving unit configured to drive an LED array using the extended dimming signal, and a detection unit configured to detect a degradation of the LED array by measuring a forward voltage between the LED array and the LED driving unit.

Abstract: A LED driving circuit having a sensing unit is disclosed. The LED driving circuit includes an input unit configured to receive a dimming signal to drive an LED array, a DC-DC converter including a power transistor configured to perform a switching operation, the DC-DC converter being configured to provide an output voltage to the LED array by the switching operation, a PWM signal generating unit configured to provide a PWM signal to adjust power of the LED array to the power transistor, a LED driving unit configured to drive the LED array using the dimming signal, and a sensing unit configured to sense degradation of the power transistor.

Abstract: Provided are a ramp circuit and a DC-DC converter. The ramp circuit generates a current flowing in a resistor using voltages affected by an output voltage and an input voltage of a DC-DC converter, and generates a ramp signal through copying of the current and charging and discharging of a capacitor using a current mirror unit. The ramp signal is generated by considering the input voltage and the output voltage, and thus the ramp signal has an optimal slope to provide an adaptive response to state change in the input voltage and the output voltage. The DC-DC converter uses such a ramp circuit to facilitate its operation.

Abstract: There is provided a current controlling mode DC-DC converter that operates in a PWM mode or a PFM mode by adjusting a turned-on time of a gate depending on power consumption of a load. The DC-DC converter includes a first comparator that receives a first input voltage and a second input voltage and outputs a first output signal, a second comparator that receives a reference voltage for mode switching and the second input voltage and outputs a second output signal, and a first logic element that outputs a reset signal for turning off a gate at a point of time when both the first output signal and the second output signal are applied. Examples may also include additional elements to facilitate mode switching.

Abstract: Provided are a ramp circuit and a DC-DC converter. The ramp circuit generates a current flowing in a resistor using voltages affected by an output voltage and an input voltage of a DC-DC converter, and generates a ramp signal through copying of the current and charging and discharging of a capacitor using a current mirror unit. The ramp signal is generated by considering the input voltage and the output voltage, and thus the ramp signal has an optimal slope to provide an adaptive response to state change in the input voltage and the output voltage. The DC-DC converter uses such a ramp circuit to facilitate its operation.

Abstract: The present invention relates to mitochondrial protein that can be used as a marker for diagnosing stomach cancer. According to the present invention, the marker for diagnosing stomach cancer comprises mitochondrial enoyl coenzyme A hydratase 1.

Abstract: A level shifter and a method of operating a level shifter are provided. The level shifter includes a first-level shifter unit configured to convert an external input signal into a signal in a preset first-voltage range using a plurality of transistors and output the converted signal and a second-level shifter unit configured to convert the signal output from the first-level shifter unit into a signal in a preset second-voltage range using a plurality of transistors and output the converted signal.

Abstract: A Light Emitting Diode (LED) driving apparatus and a method of driving a LED backlight unit are provided. An LED driving apparatus includes: an input unit configured to receive a dimming signal, an extension unit configured to extend ON time of the inputted dimming signal, an LED driving unit configured to drive an LED array using the extended dimming signal, and a detection unit configured to detect a degradation of the LED array by measuring a forward voltage between the LED array and the LED driving unit.

Abstract: A level shifter and a method of operating a level shifter are provided. The level shifter includes a first-level shifter unit configured to convert an external input signal into a signal in a preset first-voltage range using a plurality of transistors and output the converted signal and a second-level shifter unit configured to convert the signal output from the first-level shifter unit into a signal in a preset second-voltage range using a plurality of transistors and output the converted signal.

Abstract: A LED driving circuit having a sensing unit is disclosed. The LED driving circuit includes an input unit configured to receive a dimming signal to drive an LED array, a DC-DC converter including a power transistor configured to perform a switching operation, the DC-DC converter being configured to provide an output voltage to the LED array by the switching operation, a PWM signal generating unit configured to provide a PWM signal to adjust power of the LED array to the power transistor, a LED driving unit configured to drive the LED array using the dimming signal, and a sensing unit configured to sense degradation of the power transistor.

Abstract: A ESD protection circuit includes: a first clamp connected between a first power line and a ground line; a second clamp connected between the ground line and a second power line; a first output buffer connected between the first power line and the ground line, and providing a first operating voltage; a second output buffer connected between the ground line and the second power line, and providing a second operating voltage; a first switch unit configured to transfer the first operating voltage to an I/O pad; a second switch unit configured to transfer the second operating voltage to the I/O pad; a first transfer unit comprising one or more diodes connected in series between the first power line and the I/O pad; and a second transfer unit comprising one or more diodes connected in series between the I/O pad and the second power line.

Abstract: A ESD protection circuit includes: a first clamp connected between a first power line and a ground line; a second clamp connected between the ground line and a second power line; a first output buffer connected between the first power line and the ground line, and providing a first operating voltage; a second output buffer connected between the ground line and the second power line, and providing a second operating voltage; a first switch unit configured to transfer the first operating voltage to an I/O pad; a second switch unit configured to transfer the second operating voltage to the I/O pad; a first transfer unit comprising one or more diodes connected in series between the first power line and the I/O pad; and a second transfer unit comprising one or more diodes connected in series between the I/O pad and the second power line.

Abstract: The present invention relates to mitochondrial protein that can be used as a marker for diagnosing stomach cancer. According to the present invention, the marker for diagnosing stomach cancer comprises mitochondrial enoyl coenzyme A hydratase 1.

Abstract: A multi-function peripheral device includes a scanning unit provided with a lamp that reads an image of an object to be copied, and an ultraviolet (UV) lamp that irradiates ultraviolet rays onto the object for the purpose of detecting a fluorescent substance on the object; a printing unit that prints an image data read by the scanning unit; and a controller that determines a counterfeit when the fluorescent substance is not detected on the object under the UV lamp and thereby, giving a visual or audible warning to a user.