Abstract: The inventive concept provides a teaching method for teaching a transfer position of a transfer robot. The teaching method includes: searching for an object on which a target object to be transferred by the transfer robot is placed, based on a 3D position information acquired by a first sensor; and acquiring coordinates of a second direction and coordinates of a third direction of the object based on a data acquired from a second sensor which is a different type from the first sensor.

Abstract: Proposed are an unsupported metallic catalyst for a selective ring-opening (SRO) reaction and a method of using the same catalyst, wherein the catalyst contains nickel (Ni), molybdenum (Mo), and tungsten (W).

Abstract: Provided is a novel compound capable of improving the luminous efficiency, stability and life span of a device, an organic electric element using the same, and an electronic device thereof.

Abstract: The present disclosure relates to a method for preparing a mordenite zeolite, the method including crystallizing, at a temperature of 150° C. to 190° C., a gel which includes, in mol based on 1 mol of silica, 0.02 to 0.2 of an alumina precursor, 0.01 to 0.04 of a structure-directing agent, 0.1 to 0.18 of a pH control agent, and 10 to 100 of water. According to the present disclosure, a mordenite zeolite having high particle size uniformity and a particle size controllable while maintaining the particle size uniformity may be prepared.

Abstract: A clock generating circuit includes a buffer circuit and a phase compensating circuit. The buffer circuit buffers an input clock signal to generate an output clock signal. The phase compensating circuit detects a noise in a power voltage and adjusts, according to the noise of the power voltage, a voltage level of the input clock signal to compensate for a phase change of the output clock signal due to the noise of the power voltage.

Abstract: An encryption method, includes performing, by an encryption system, bit reversal permutation of pixel data of a 2D image, arranging the pixel data as first-pixel data, and applying the 2D image to a butterfly algorithm of fast Fourier transform; determining, by the encryption system, a plurality of data paths based on the first-pixel data; and performing, by the encryption system, a first encryption of the first-pixel data into second-pixel data on a specific data path based on a number of the specific data path among the plurality of data paths.

Abstract: The present solution provides a signal processing device, including: an encoder which encodes second transmitting data by referring to first transmitting data which is previously transmitted and the second transmitting data which is a current transmitting target such that at least one bit signal of the second transmitting data has a binary level different from that of a corresponding bit signal of the first transmitting data; and a transmitter which sequentially transmits the first transmitting data and the second transmitting data.

Abstract: The present solution provides a signal processing device, including: an encoder which encodes second transmitting data by referring to first transmitting data which is previously transmitted and the second transmitting data which is a current transmitting target such that at least one bit signal of the second transmitting data has a binary level different from that of a corresponding bit signal of the first transmitting data; and a transmitter which sequentially transmits the first transmitting data and the second transmitting data.

Abstract: In accordance with an embodiment of the present invention, a sound system of a wall-mounted flat panel display apparatus can include a speaker, being mounted in an area except for a display area, which plays back a video, in the flat panel display apparatus and playing back a corresponding sound; and an acoustic resonator, having a box shape including one surface formed with an open area and being mounted such that the surface formed with the open area is closely in contact with an outer side of a case of the flat panel display apparatus, the acoustic resonator being configured to induce a resonance of a sound projected from the speaker and inputted through the open area. With the present invention, it can be possible to adequately improve audio balance by simply mounting a pipe or box shaped acoustic resonator in an outer side of a case of the flat panel display apparatus.

Abstract: According to an aspect of the present invention, a data recording method in a holography optical memory system, for recording a two-dimensional pixel data page in a recording medium can be provided. In accordance with an embodiment of the present invention, the data recording method in a holography optical memory system can include recording sequentially the signal beams carrying one-dimensional pixel data lines, included in the original two dimensional pixel data page, in the recording medium by using the same reference beam. Here, the pixel data page can be recorded such that any two adjacent pixel data lines are partially overlapped with each other in an area of the recording medium.

Abstract: According to an aspect of the present invention, a data recording method in a holography optical memory system, for recording a two-dimensional pixel data page in a recording medium can be provided. In accordance with an embodiment of the present invention, the data recording method in a holography optical memory system can include recording sequentially the signal beams carrying one-dimensional pixel data lines, included in the original two dimensional pixel data page, in the recording medium by using the same reference beam. Here, the pixel data page can be recorded such that any two adjacent pixel data lines are partially overlapped with each other in an area of the recording medium.

Abstract: In accordance with an embodiment of the present invention, a sound system of a wall-mounted flat panel display apparatus can include a speaker, being mounted in an area except for a display area, which plays back a video, in the flat panel display apparatus and playing back a corresponding sound; and an acoustic resonator, having a box shape including one surface formed with an open area and being mounted such that the surface formed with the open area is closely in contact with an outer side of a case of the flat panel display apparatus, the acoustic resonator being configured to induce a resonance of a sound projected from the speaker and inputted through the open area. With the present invention, it can be possible to adequately improve audio balance by simply mounting a pipe or box shaped acoustic resonator in an outer side of a case of the flat panel display apparatus.