Abstract:
PURPOSE: A method and an apparatus for canceling chromatic aberration are provided to filter only chromaticity signals from a brightness/chromaticity coordinates system, thereby removing chromatic aberration without respect to a property of a lens. CONSTITUTION: An RGB gradient calculating unit(122) calculates an RGB gradient using an RGB signal. A brightness/chromaticity difference calculating unit(121) inputs a brightness/chromaticity signal to which the RGB signal is converted. The brightness/chromaticity difference calculating unit calculates a brightness/chromaticity difference using the brightness/chromaticity signal. A chromaticity signal filtering unit(123) generates a chromaticity signal for compensating chromatic aberration.
Abstract:
A cell capacity enhancement method and apparatus through optical signal combining between RSs(Relay Stations) in a cellular system using wireline RSs are provided to increase the overall cell transmission capacity by improving QoS(Quality of Service). A BS(Base Station) receives a signal of an MS(Mobile Station) from each RS and the MS and transmits data to each RS and the MS. A plurality of RSs transfer information of MSs of a corresponding coverage to the BS and allocate resources to a corresponding MS. A plurality of MSs are allocated resources by the MS and the respective RS and perform updating. The BS collectively perform resource allocation and scheduling upon receiving feedback an average C/I(Carrier-to-Interference ratio) of the MS from the respective RS and the MS. The RS transfers relevant information of the MS of the corresponding coverage to the BS, independently perform scheduling on packets to be transferred to the corresponding MS, and performs resource allocation from the BS to the corresponding MS.
Abstract:
A cleaning method of a process chamber is provided to optimize a time point for cleaning automatically according to the amount of residues by adding up a thickness of thin films and byproducts defined at a recipe. A first step, a recipe is selected for defining limit a value, and process progress conditions including thicknesses of a thin film and a byproducts(S10). A second step, a thin film process is performed by preparing a predetermined processed article within a process chamber(S20). A third step, the limit value is compared to an accumulated value of the thicknesses(S40). A fifth step, a cleaning process is performed to the inside of the process chamber, if the accumulated value is larger than the limit value(S50).
Abstract:
A driving apparatus and a liquid crystal display device having the same are provided to suppress a horizontal stripe error on an LCD panel by masking an undesired vertical synchronization start signal during initial booting and resolution mode conversion processes. An apparatus for driving an LCD(Liquid Crystal Display) device includes a signal controller(600) and a signal masking unit(610). The signal controller generates gate and data control signals for driving an LCD panel. The signal masking unit includes a memory, a counter, and an output unit. The number of reference pixels in a vertical direction which is set according to the resolution of the LCD panel is stored on the memory. The counter counts the number of gate clock signals from application timing of a vertical synchronization start signal and provides a mask signal which represents end timing of the counting process. The output unit delivers the vertical synchronization start signal in response to the mask signal.
Abstract:
광대역 무선 통신시스템에서 채널을 추정하기 위한 장치 및 방법에 관한 것으로서, 수신된 신호를 고속 푸리에 변환(FFT : Fast Fourier Transform)하는 FFT연산기와, 상기 고속 푸리에 변환된 신호에서 프리앰블을 역 고속 푸리에 변환(IFFT : Inverse Fast Fourier Transform)하여, RMS(Root Mean Square) 시간지연 확산을 추정하는 시간지연 추정기와, 상기 시간지연 확산 추정치를 미리 정해진 기준값과 비교하여 채널 환경에 맞는 워너(Wiener) 계수를 선택하여 채널을 추정하는 채널 추정기와, 상기 고속 푸리에 변환된 신호를 상기 채널 추정값으로 보상하는 등화기를 포함하여, 상기 정확한 시간지연 확산을 추정하고, 채널 적응적으로 워너 계수 집합을 선택하므로 채널 추정하므로 채널 추정 성능을 향상시킬 수 있는 이점이 있다. 시간지연 추정, 채널 추정, 워너 필터(Wiener filter), 다중경로 페이딩
Abstract:
현상장치 및 이를 적용한 화상형성장치가 개시된다. 개시된 현상장치는 폐토너수용실에 마련된 제1이송수단, 현상실에 마련된 제2이송수단 및 폐토너수용실 및 현상실을 연결하는 회수통로에는 제2이송수단에 연결되어 회전되면서 폐토너를 현상실로 이송시키는 제3이송수단이 마련되어 있다.
Abstract:
본 발명은 임펄시브 구동 액정 표시 장치에 관한 것이다. 임펄시브 구동 액정 표시 장치는 게이트 온 전압을 복수의 게이트선에 차례로 인가하는 게이트 구동부, 정상 데이터에 기초한 정상 데이터 전압과 블랙 데이터에 기초한 블랙 데이터 전압을 복수의 데이터선에 인가하는 데이터 구동부, 상기 게이트 온 전압에 의하여 도통되어 상기 데이터 전압을 전달하는 스위칭 소자를 포함하며 행렬의 형태로 배열되어 있는 복수의 화소, 그리고 상기 게이트 구동부와 상기 데이터 구동부를 제어하는 복수의 제어 신호를 인가하는 신호 제어부를 포함한다. 상기 신호 제어부는 한 프레임의 상기 데이터를 기억하는 프레임 메모리를 구비한다. 상기 게이트 온 전압을 상기 게이트선에 인가할 때 인접한 프레임 사이에서는 상기 게이트 온 전압의 인가 순서가 반대이다. 그로 인해, 프레임의 순서에 따라 데이터 신호의 위쪽에서 아래쪽으로 또는 아래쪽에서 위쪽으로 바뀌므로 서로 상이한 화소 충전기간이 보상되어 화질이 좋아진다.
Abstract:
PURPOSE: A method for controlling short message deletion is provided to protect an important message among short messages. CONSTITUTION: A control unit maintains a waiting state(200). The control unit checks whether data for requiring a message deletion are inputted(202). If so, the control unit also checks whether data for requiring a message part deletion are inputted(204). If so, the control unit performs a part deletion mode stored to a memory(206). The control unit also checks whether data for requiring an entire message deletion are inputted(208). If so, the control unit performs the entire deletion mode stored to the memory(210). The control unit also checks whether data for requiring a multi deletion are inputted(212). If so, the control unit determines the message for deleting(214).
Abstract:
PURPOSE: A base station system in an FH/CDMA(Frequency Hopping/Code Division Multiple Access) system is provided to remarkably reduce the weight or size of a coupler in multiplexing and combining RF signals using a digital switch and a BPF(Band Pass Filter) and to minimize the transmitting combination loss of a transmitting signal through junction coupling. CONSTITUTION: Signals processed by 8 signal processing units(201) are inputted to a forward signal exchange unit(202). The processed signals are exchanged through unused channels at the forward signal exchange unit(202) and inputted to another signal processing units(203). The signals processed by the signal processing units(203) are inputted to transmitting/receiving selection units. Signals passed through a path selected by the transmitting/receiving selection units pass a corresponding band through a BPF and are switched at a TDD switch(207) so as to be connected with an antenna. Signals selected by the transmitting/receiving selection units are processed by another signal processing units(204) and exchanged at a backward signal exchange unit(205). The exchanged signals are processed and received through 8 channels identical to a signal processing unit(206).