Abstract:
A batch control system in a semiconductor fabrication is provided to reduce a wafer charge time and improve the operation rate of equipment and to enhance the productivity by using a batch control unit b. A batch control system in a semiconductor fabrication includes process equipment and a batch control unit. The process equipment(20) is used for performing a predetermined process corresponding to each parameter, wherein the each parameter is provided according to the number of lots. The batch control unit(10) is used for storing basic process parameters according to the number of the lots and supplying corresponding process parameters according to the number of the lots to the process equipment.
Abstract:
Washing machine and a control method are provided to decrease the unbalance reduction time and to effectively take up laundry. Washing machine comprises: a drum accommodating laundry; a motor(26) rotating the drum; an input unit(20) inputting a working order of a user; a controller(22) controlling the speed of drum according to a decision result; a motor driver(24) operating the motor according to the controller; a velocity detector(28) delivering; a motor rate signal corresponding to the rotation speed of drum to the controller; and a counter electromotive force detection unit(30) delivering the counter electromotive force which is in proportion to the rotation speed of drum to the controller.
Abstract:
A method of sensing the laundry amount of a drum washing machine is provided to accurately sense the weight of laundry put in the drum washing machine. A motor is accelerated to a first rotation speed(S100). The first rotation speed is maintained(S120). An average voltage applied to the motor is calculated while the first rotation speed is maintained(S130). A voltage corresponding to an integer multiple of the calculated average voltage is applied to the motor to accelerate the motor to a second rotation speed(S140). The weigh to laundry is calculated using the time required to accelerate the motor to the second rotation speed and the average voltage(S180).
Abstract:
An image stabilizer and a system having the same, and a method thereof are provided to reduce sudden shift effect which can be generated when movement of a video signal is compensated, thereby improving quality of the video signal. An image stabilizer and a system having the same comprise the following parts: a movement estimating unit(51) for detecting movement vectors of each window from multiple projected windows; a selecting unit(52) for selecting optimal movement vector among the multiple movement vectors; a movement compensating vector computing unit(53) for computing a compensation vector by using the optimal movement vector supplied from the selecting unit; and an image compensating unit(54) for performing image compensation of the image by using the compensation vector.
Abstract:
본 발명은 공기조화기에 관한 것으로서, 소음방지 및 냉기누설을 방지할 수 있는 캐비닛구조를 구비한 공기조화기에 관한 것이다. 본 발명에 따른 공기조화기는 전면이 개방되며 양측면에는 절곡부가 형성된 캐비닛과, 상기 캐비닛의 내부에 마련된 실내열교환기와, 상기 캐비닛의 전방에 마련되며 토출구가 형성된 전면패널과, 상기 캐비닛의 양측면에 마련된 단열재를 포함하는 공기조화기에 있어서, 상기 절곡부의 선단이 상기 캐비닛의 측면을 향하여 경사지게 절곡되고, 상기 단열재는 상기 실내열교환기와 상기 전면패널사이에 마련되며 상기 절곡부의 외면에 접하도록 하여 캐비닛 내부 부품 조립의 조립성을 향상시키고, 와류발생을 억제하며, 냉기유출을 방지할 수 있다.
Abstract:
An air conditioner is provided to prevent turbulence of heat-exchanged cool air and to reduce a noise by preparing a plate member on outer surface of a bending unit. An air conditioner includes a housing. The housing includes a cabinet(40). The cabinet includes a first bending part(41), a second bending part, and a third bending part(42) at both sides. The first bending part is vertically bent. The second bending part is vertically bent from the first bending unit to a rear direction of the cabinet. The third bending part is bent and inclined from the second bending unit to a side of the cabinet. The third bending part is bent and inclined to a side of the cabinet for minimizing a projection of an end(43b) of the bending part to an outside thereof and increasing a work efficiency by preventing an interference during the installation of internal parts.
Abstract:
본 발명은 복수의 안테나를 통해 빔 형성 방위를 조절할 수 있도록 하는 오에프디엠 수신 장치와 이를 적용한 통신 장치 및 방법에 관한 것으로서, 본 발명에 따른 오에프디엠 통신장치는 상호 독립적으로 설치된 복수개의 안테나를 구비한 오에프디엠 통신 장치에 있어서, 안테나 각각으로부터 수신된 오에프디엠 신호를 디코딩하여 복원하는 수신신호생성부, 수신신호생성부에서 출력된 신호로부터 신호 대 잡음 비를 포함하는 채널특성정보를 산출하고, 산출된 채널특성정보로부터 수신 감도를 최적으로 하기 위한 형태의 빔을 형성하기 위해 요구되는 안테나용 빔계수를 산출하는 빔계수산출부, 각 안테나로부터 수신된 신호를 수신신호생성부로 출력하고 빔계수산출부에서 출력된 빔계수에 대응하는 형태의 빔이 형성되도록 해당 안테나를 제어하는 수신빔처리부, 송신대상신호를 송신용 신호로 변조하여 출력하는 송신신호생성부 및 송신용신호를 안테나를 통하여 송신하기 위해 빔계수산출부로부터 산출된 빔 계수 값에 따라 안테나를 제어하는 송신빔처리부를 포함한다. OFDM, ANTENNA, BEAM, BEAM FORMER
Abstract:
There is provided a multi-carrier transmission system which includes: an encoder for converting a data sequence into encoded symbols corresponding to respective sub-carriers; a first shifter for rearranging the encoded symbols to define a guard interval length; an inverse fast Fourier transform (IFFT) unit for inverse fast Fourier transforming the rearranged encoded symbols; a second shifter for processing the transformed symbols to effect a frequency shift to compensate for a frequency shift effected by the IFFT unit; and a guard interval inserter for interleaving symbol replicas with the processed symbols according to the guard interval length. The data transmission system of the present invention performs sub-carrier relocation function and guard interval insertion function using relatively simple elements in order to reduce the data processing time. As a result, the transmission efficiency of the entire communication system is enhanced.
Abstract:
PURPOSE: An OFDM(Orthogonal Frequency Division Multiplexing) receiving apparatus for forming an irregular beam width according to a channel characteristic and a communication apparatus and method applying the same are provided to judge a transmission channel characteristic from a received signal and adjust a beam shape of an antenna in a direction with a high receiving sensibility. CONSTITUTION: A receiving signal generating unit(100) decodes OFDM signals received from antennas(510,550) for recovering the OFDM signals as an original signal. A beam coefficient calculating unit(200) calculates channel characteristic information including a signal to noise rate from the signal outputted from the receiving signal generating unit(100), and calculates an antenna beam coefficient requested for forming a beam with a shape for optimizing a receiving sensibility from calculated channel characteristic. A receiving beam processing unit(300) outputs the signals received from the antennas(510,550) to the receiving signal generating unit(100), and controls a corresponding antenna so that the beam with the shape corresponding to the beam coefficient outputted from the beam coefficient calculating unit(200) is formed.