Abstract: The present invention relates to an organic compound represented by the following [Formula 1], and a high-efficiency and long-lifetime organic light emitting device enabling significantly improved low voltage driving and having long lifetime, excellent luminous efficiency and the like by employing the same as a light emitting layer host material in the device.

Abstract: The present invention relates to an organic light-emitting diode in which a light-emitting layer comprises a compound represented by [chemical formula A] as a host and comprises a compound represented by [chemical formula 3], [chemical formula 4], [chemical formula 3-1] to [chemical formula 4-3] as a dopant, wherein [chemical formula 3], [chemical formula 4], [chemical formula 3-1] to [chemical formula 4-3] are the same as those described in the detailed description of the invention.

Abstract: The present invention relates to a microbial insecticide for control of thrips, comprising a Beauveria bassiana ERL836 strain (KCCM11506P) or a spore thereof. The insecticide of the present invention shows an insecticidal activity as potent as pre-existing chemical insecticides against thrips, is environmentally friendly, and easy to manage and produce, thus finding outstanding commercial applications.

Abstract: Anti-theft circuit for a portable device, is disclosed, in which a correlation in a PN(Pseudo Random Number) sequence is employed for effective prevention of a portable device from being thieved, the anti-theft circuit including a transmission block disposed in the portable device having a block for generating a particular pseudo random number sequence and a multiplication block for always multiplying a ‘high’ value to an output of the block for generating a particular pseudo random number sequence, the transmission block for converting an output of the multiplication block into an analog value and transmitting the analog value, and an anti-theft sensing circuit separate from the portable device for receiving a signal transmitted form the transmission block, sampling the signal, multiplying a sampled value to a pseudo random number sequence identical to a case of the transmission block, summing for a time period, comparing to a preset threshold value, and selectively providing an alarm signal to o

Abstract: A synchronization acquisition apparatus and a method thereof are disclosed. The apparatus includes a local code generator coupled to a plurality of delayers, a plurality of multipliers commonly coupled between the delayers and a plurality of integrators, and a plurality of switches coupled between the multipliers of an integrator. The plurality of integrators are coupled to a detector that detects the maximum integrator output. A plurality of comparators form a feedback loop for obtaining a reliable signal level under any environment and implementing a quick synchronization acquisition without checking all PN code offsets.

Abstract: A serial/parallel selective converter is provided that selectively receives and outputs data by using a plurality of serial input/output switching latches and a plurality of parallel input/output switching latches. The serial/parallel selective converter can further include three sets of transmission gates respectively coupling the plurality of serial input/output switching latches and the plurality of parallel input/output switching latches. The serial/parallel selective converter can output a serial input data signal as a parallel data signal and can also output a parallel input data signal as a serial data signal based on a serial/parallel selection control signal.