Abstract: An optical disc driving apparatus and a land pre-pit detection method are provided for defining determination factors which have an effect on land pre-pit signal detection efficiency. The optical disc driving apparatus comprises an RF processing unit for forming a push-pull signal from an electrical signal acquired through an optical disc; and a control unit for arranging a representative value of determination factors for forming the push-pull signal and testing an error with respect to a land pre-pit (LPP) signal detected from the push-pull signal. As a result, the optical disc driving apparatus is capable of decreasing time for determining the optimal balance level and slice level, and applying the optimal balance level and slice level to the optical disc driving apparatus which operates in real time by defining representative values of each zone according to size of a balance level and a slice level.

Abstract: An integrated circuit device includes an amplifier circuit that includes first and second differential transistor pairs that are selectively operable responsive to at least one bit of a multi-bit data signal.

Abstract: An integrated circuit device includes an amplifier circuit that generates an output voltage. A bias control circuit is configured to generate a bias control voltage or the output voltage at an output thereof based on a state of a control signal. An output stage driver circuit that is responsive to the voltage generated at the output of the bias control circuit.

Abstract: The present invention relates to a method for preparing optically active (R)-aryloxypropionic acid ester derivatives, and more particularly to a method for preparing (R)-aryloxypropionic acid ester derivatives with high optical purity and good yield at low cost from phenol derivatives with various substituted functional groups and (S)-alkyl O-arylsulfonyl lactates.

Abstract: Methods of driving source lines and/or circuits/systems for driving source lines are provided. Source lines of a display device are driven by comparing first data for driving a first buffer associated with a first source line of the display device and second data for driving a second buffer associated with a second source line of the display device and selectively disabling the second buffer and driving the second source line of the display device with the first buffer based on the comparison of the first and second data.

Abstract: For enhanced stability of fuel supply to an engine, a fuel tank system of a vehicle has a first and a second fuel tank for storing fuel. The tanks are interconnected by a connecting pipe with a one-way valve disposed in the connecting pipe such that fuel can flow from a filling tank to an engine supply tank but not in the reverse direction.

Abstract: The present invention relates to optically active herbicidal (R)-phenoxypropionic acid N-methyl-N-2-fluorophenyl amide compounds represented in the following formula (1), a method for preparing thereof, their use to prevent generation of barnyard grass produced from rice and composition as suitable herbicides, (I) wherein X is hydrogen, halogen, hydroxy, NH2, CO2H, C1-C6 alkylamino substituted with 1 or 2 of C1-C3 alkyl, C1-C6 alkyl, C1-C6 alkoxy, C1-C3 haloalkyl, C1-C3 haloalkoxy, C2-C4 alkoxyalkoxy, C1-C4 alkylthonyl, C1-C4 alkylsulfonyl, C2-C6 alkenyl, C2-C6 alkinyl, C2-C6 alkenyloxy, C2-C6 alkinyloxy, C1-C3 alkoxycarbonyl, or C1-C3 alkylcarbonyl; is hydrogen or fluoro; and n is an integer of 0 to 2, wherein X can be a combination of other substituents when n is 2.