| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | 연산 증폭기 및 이를 이용한 액정 표시 장치의 구동 장치및 그 방법 | KR1020060016355 | 2006-02-20 | KR1020070083091A | 2007-08-23 | 김상석; 최진호; 노상훈; 장근진 |
| An operational amplifier, and an apparatus and a method for driving an LCD device using the same are provided to reduce power consumption by minimizing a static current during a non-driving period. An apparatus for driving an LCD(Liquid Crystal Display) device includes an operational amplifier for supplying a gradation voltage to a panel. The operational amplifier includes amplifying and outputting stages(92,94), and first and second bias switching units(82,84). The amplifying and outputting stages receive first and second bias voltages(HVDD,HVSS), and differential input signals(INP,INN), and amplify and buffer the received voltages and signals. The first and second bias switching units apply first and second bias voltages to the amplifying and outputting stages according to first and second control signals(ENB,EN), respectively, so as to remove a bias current. | ||||||
| 82 | 배터리전압 감지 장치 | KR1020010085861 | 2001-12-27 | KR1020030055783A | 2003-07-04 | 조내현 |
| PURPOSE: A battery voltage sensing apparatus is provided, which receives a stable reference voltage from the external and senses a battery voltage accurately through a resistor R3 connected to the ground. CONSTITUTION: A reference voltage generation part(V4) receives a constant reference voltage from the external. A battery part(Vb) drives an inducting unit. And a comparator part draws out a low level signal, if the battery voltage provided from a battery power supply becomes above the reference voltage provided from the reference voltage generation part. The battery power supply is connected to the ground, and further includes a resistor stabilizing the battery voltage. | ||||||
| 83 | 정확한 샘플 래치 오프셋 보상 방식 | KR1020187003274 | 2016-07-05 | KR101899903B1 | 2018-09-18 | 첸,민한; 아큐디아,케네스루이스 |
| 일양상에따른수신기는, 샘플링클록신호에따라데이터신호를샘플링하도록구성되는래치, 및복수의오프셋-보상세그먼트들을포함하며, 여기서, 세그먼트들각각은래치의내부노드에커플링된다. 세그먼트드들각각은, 보상트랜지스터, 및보상트랜지스터와직렬로커플링되는스텝-조정트랜지스터를포함한다. 수신기는, 래치의오프셋전압을감소시키기위해보상트랜지스터들중 하나또는그 초과의보상트랜지스터들을선택적으로턴 온시키도록구성되는오프셋제어기, 및스텝-조정트랜지스터들중 하나또는그 초과의스텝-조정트랜지스터들각각의게이트에바이어스전압을인가하도록구성되는바이어스회로를더 포함한다. | ||||||
| 84 | 오디오 출력 제어 장치 | KR1020090113995 | 2009-11-24 | KR1020110057548A | 2011-06-01 | 장남식 |
| PURPOSE: An audio output control device is provided to use amplifier end equipped per audio channel even in the case that audio channels are different. CONSTITUTION: An audio output control device comprises a plurality of amplifier ends(308,310,312), an audio channel detector(314), and a decoder(302). The plurality of amplifier ends amplifies audio signals outputted to an external speaker. The audio channel detector detects the amplified audio signal. The audio channel detector detects audio channels. The decoder controls the audio signal inputted to the amplifier end. | ||||||
| 85 | 전압 발생 장치 및 이를 포함하는 액정 표시 장치 | KR1020060113314 | 2006-11-16 | KR1020080044444A | 2008-05-21 | 윤원봉 |
| A voltage generator and a liquid crystal display device having the same are provided to improve image quality of the display device by enhancing driving performance of a driver and preventing damage to a data driver. A voltage generator includes a driving voltage generator(810), a driving voltage generator(820), a gate-on voltage generator(830), and a gate-off voltage generator(840). The driving voltage generator outputs a first driving voltage and a pulse signal. The first driving voltage level is changed according to ambient temperature. The driving voltage generator receives the first driving voltage level and outputs a second driving voltage whose voltage level is adjusted between first and second reference voltages. The level of the first reference voltage is lower than that of the first reference voltage. The gate-on voltage generator outputs a gate-on voltage by shifting the second driving voltage by the voltage level of the pulse signal. The gate-off voltage generator outputs a gate-off voltage by shifting the first input voltage by the voltage level of the pulse signal. | ||||||
| 86 | 액정표시장치의 오버드라이빙 회로 | KR1020060061205 | 2006-06-30 | KR1020080002393A | 2008-01-04 | 이태현 |
| An over driving circuit for an LCD(Liquid Crystal Display) device is provided to simplify peripheral circuit of an over driving circuit by executing over driving using gate pulses. An over driving circuit for an LCD(Liquid Crystal Display) device includes a differentiator(31), a clipper(32), an adder(33), and a gate pulse generator. The differentiator differentiates gate-out enable signals and generates positive/negative pulse trains. The clipper generates positive pulse trains by clipping the negative pulse train among bidirectional pulse trains from the differentiator. The adder adds gate high voltages and the positive pulse train. The gate pulse generator switches the signal outputted from the adder for every gate pulse period and outputs modulated gate pulses. | ||||||
| 87 | 액정 표시 장치 및 그 구동 방법 | KR1020060055227 | 2006-06-20 | KR1020070120671A | 2007-12-26 | 김광재 |
| A liquid crystal display device and a driving method thereof are provided to suppress a flicker and an afterimage by determining common voltage levels for respective data ICs. A liquid crystal display device includes an LCD(Liquid Crystal Display) panel, a data IC(43) and a compensation common voltage portion(50). The data IC supplies a positive pixel voltage signal and a negative pixel voltage signal to the LCD panel. The compensation common voltage portion is embedded in the data IC and supplies a mean voltage of the positive pixel voltage signal and the negative pixel voltage, which are fed back from the LCD panel to the LCD panel. The compensation common voltage portion includes an adder and a mean calculator. | ||||||
| 88 | 엘이디 드라이버 전원 모듈용 화면 떨림 방지회로 | KR1020060054416 | 2006-06-16 | KR1020070119892A | 2007-12-21 | 박미정; 김성은; 한경태 |
| A circuit for preventing screen dimming for an LED(Light Emitting Device) driver power module is provided to prevent a screen from being dimmed due to a low voltage by disconnecting the low voltage from the LED driver power module. An input voltage portion(10) receives a predetermined voltage from an LED(Light Emitting Device) driver of an LCD(Liquid Crystal Display) panel. An operational amplifier(100) is connected to the input voltage portion and configured to detect a low voltage, when a low voltage is inputted. A microcomputer(30) receives the voltage, which is outputted from the operational amplifier and controls an overall system. A PWM system(40) is series-connected to the input voltage portion and the microphone and modulates a pulse width of an input signal. An LED portion(50) is series-connected to the PWM system and adjusts RGB LED signals. | ||||||
| 89 | 엘이디 휘도 보상용 신호 연산 증폭 회로 | KR1020060041466 | 2006-05-09 | KR1020070109027A | 2007-11-15 | 박미정; 김성은; 한경태; 박성수 |
| A signal operational amplifying circuit compensating for LED brightness is provided to enhance color reproduction by inputting a precise digital signal having a stable height to a micro controller. A signal operational amplifying circuit compensating for LED brightness includes a temperature sensor(10), a rail-to-rail operational amplifier(20) and a micro controller(30). The temperature sensor measures temperature of an LED in a backlight unit for an LCD(Liquid Crystal Display) device. The rail-to-rail operational amplifier amplifies a signal related to the temperature from the temperature sensor and outputs a precise digital level signal. The micro controller receives an amplified signal from the rail-to-rail operational amplifier, performs a signal compensation operation on the received signal, and prevents reduction of LED brightness according to rising of temperature. | ||||||
| 90 | 디지털 튜너의 알에프 이득제어회로 | KR1020050086141 | 2005-09-15 | KR1020070031568A | 2007-03-20 | 임현우 |
| RF 앰프와 MOPLL IC를 포함하는 튜너와 디모듈레이터로 이루어지는 튜너 모듈에서, MOPLL IC로부터 상기 RF 앰프로 제 1 이득제어신호가 인가되며, 디모듈레이터로부터 상기 RF 앰프에 인가되는 제 2 이득제어신호를 온/오프 스위칭하는 스위칭부를 포함하고, RF 앰프가 수신하는 방송신호가 에어 신호(VSB)인 경우, 제 1 이득제어신호가 인가되고, RF 앰프가 수신하는 방송신호가 케이블 신호(QAM)인 경우, 제 2 이득제어신호가 인가되는 디지털 튜너의 알에프 이득제어회로가 개시된다. AGC, 방송모드, VSB, QAM, 이득제어, 스위칭 | ||||||
| 91 | 진동형 틸팅장치의 전류 제한 회로 | KR1020050076273 | 2005-08-19 | KR1020070021706A | 2007-02-23 | 우상민; 문양호; 박경신; 최동원; 김재경; 이칠성 |
| 본 발명은 진동형 틸팅장치의 전류 제한 회로에 관한 것이다. 본 발명에 따른 진동형 틸팅장치의 전류 제한 회로는 + 입력단자에는 입력전압이 접속된 연산증폭기와, 상기 연산증폭기의 출력단자와 상기 + 입력단자 사이에 접속된 제1 이득저항과, 상기 입력전압과 상기 + 입력단자 사이에 접속된 제2 이득저항과, 상기 연산증폭기를 구동하는 구동전압과, 상기 구동전압과 상기 연산증폭기 사이에 접속되는 조정저항을 포함하며, 상기 조정저항에 의해 상기 연산증폭기의 포화전압이 낮아지기 때문에 코일에 발생하는 발열량을 줄일 수 있게 된다. 포화전압, 연산증폭기, 틸팅장치 | ||||||
| 92 | 발광표시 장치용 전원공급 장치 | KR1020040036853 | 2004-05-24 | KR1020050111921A | 2005-11-29 | 박성천; 이경수 |
| 본 발명은 발광표시 장치의 데이터 구동부에 안정적인 데이터 전압을 제공하는 기준전위 선택 회로를 구비한 발광표시 장치용 전원공급 장치에 관한 것이다. 본 발명에 따른 발광표시 장치용 전원공급 장치는, 외부 기준전위(VCIRex)를 공급하는 외부 기준전위 공급부; 외부로부터 입력되는 외부 전원(Vci)의 전압이 변동하는 경우, 상기 외부 전원을 안정화된 직류 기준전위(VCIR)로 변환하여 출력하는 기준전위 발생부; 상기 외부 기준전위 공급부 또는 상기 기준전위 발생부로부터 입력되는 어느 하나의 기준전위를 선택하여 출력하는 기준전위 선택부; 및 상기 기준전위 선택부로부터 출력되는 안정화된 기준전위(VCIR')를 상기 구동부 내에 사용되는 복수의 내부 직류 전원들로 각각 변환하는 전압 변환부를 포함한다. 본 발명에 따르면, 안정화된 기준전위 및 외부 기준전위 중에서 안정적인 전압을 발광표시 장치의 데이터 구동부 내부에 선택적으로 제공함으로써, 데이터 전압의 변동으로 인한 휘도 등의 불균일성을 막을 수 있다. | ||||||
| 93 | 비유전 물질 감지 장치 | KR1020010065090 | 2001-10-22 | KR1020030033351A | 2003-05-01 | 최창호 |
| PURPOSE: An apparatus for sensing a dielectric material is provided to sense a dielectric material effectively without performance degradation and without using an expensive IC or a complicated circuit. CONSTITUTION: An oscillation part(110) generates a rectangular wave of a fixed frequency. A sensing part(120) converts the frequency of the rectangular wave by contacting with a dielectric material. A rectification part(130) converts the rectangular wave from the sensing part into DC component. A comparison detection part(140) compares DC from the rectification part with a reference voltage and transmits a signal current. A timer(150) transmits a switching signal by receiving the signal current from the comparison detection part. A display part(160) displays the sensing of a dielectric material by receiving the switching signal from the timer. And a constant voltage circuit(270) supplies a constant voltage to the above circuit. | ||||||
| 94 | 정확한 샘플 래치 오프셋 보상 방식 | KR20187003274 | 2016-07-05 | KR20180015764A | 2018-02-13 | 첸,민한; 아큐디아,케네스루이스 |
| 일양상에따른수신기는, 샘플링클록신호에따라데이터신호를샘플링하도록구성되는래치, 및복수의오프셋-보상세그먼트들을포함하며, 여기서, 세그먼트들각각은래치의내부노드에커플링된다. 세그먼트드들각각은, 보상트랜지스터, 및보상트랜지스터와직렬로커플링되는스텝-조정트랜지스터를포함한다. 수신기는, 래치의오프셋전압을감소시키기위해보상트랜지스터들중 하나또는그 초과의보상트랜지스터들을선택적으로턴 온시키도록구성되는오프셋제어기, 및스텝-조정트랜지스터들중 하나또는그 초과의스텝-조정트랜지스터들각각의게이트에바이어스전압을인가하도록구성되는바이어스회로를더 포함한다. | ||||||
| 95 | 능동 RC 필터들 | KR1020177019453 | 2015-12-14 | KR1020170094427A | 2017-08-17 | 코어비쉴리필 |
| 연산증폭기는차동입력신호(18, 20)를수신하여증폭함으로제 1 차동출력신호(22, 24)를제공하도록배열된제 1 차동쌍의트랜지스터들(8, 10)을포함하는제 1 증폭기스테이지(4); 및제 1 차동출력신호(22, 24)를수신하여증폭함으로제 2 차동출력신호(38, 40)를제공하도록배열된제 2 차동쌍의트랜지스터들(26, 28)을포함하는제 2 증폭기스테이지(6)를포함한다. | ||||||
| 96 | 카메라 신호 편차 제거 장치 | KR1020100127214 | 2010-12-13 | KR1020120065879A | 2012-06-21 | 김성현 |
| PURPOSE: A camera signal deviation removing apparatus with improved producing ability is provided to improve the EMI performance of a camera module. CONSTITUTION: A camera signal deviation removing apparatus comprises the following: a delay unit(22) providing the minor delay to each terminal of output signals outputted from an image signal processor(10), and producing uniformly delayed output signals; and an amplification unit(23) uniformly amplifying the delayed output signals using the terminals, and compensating the delay loss. The amplification unit outputs the compensated output signals. | ||||||
| 97 | 액정표시장치의 온도변화에 따른 구동제어 회로 및 방법 | KR1020100014109 | 2010-02-17 | KR1020110094596A | 2011-08-24 | 안용성; 최정민; 차상록 |
| PURPOSE: A drive control circuit and method by temperature variation in a liquid crystal display are provided to prevent whitening by controlling the driving of a driving circuit and a power supply unit. CONSTITUTION: In a drive control circuit and method by temperature variation in a liquid crystal display, a reference voltage output part(2) outputs a first reference voltage and a second reference voltage. The first reference voltage corresponds to a reference temperature. The second reference voltage is generated for hysteresis. A comparison unit(4) compares a temperature sensing voltage with the first and second reference voltages. A controller(5) supplies a driving control value according to temperature change to a liquid crystal panel driving part. The controller sets a driving control value as a control value in a normal mode. | ||||||
| 98 | 감마기준전압 생성회로 | KR1020060119081 | 2006-11-29 | KR1020080048732A | 2008-06-03 | 강동우 |
| A circuit for generating gamma reference voltages is provided to enhance the gamma characteristics of high and low gray scale areas by utilizing a divided voltage resistor group where gamma reference voltages are easily varied using switching elements. A circuit for generating gamma reference voltages includes a first divided resistor group(50) for dividing a driving voltage using a resistor, which is selected by a switching element, and a second divided resistor group for dividing the driving voltage. The first divided resistor group includes first, second, third, and fourth resistors(R1,R2,R3,R4). The first resistor receives the driving voltage through a first switching element(SW1). The second resistor receives the driving voltage through a second switching element(SW2) and forms an output node by connecting to the first resistor. The third resistor is connected to the output node and the ground by a third switching element(SW3). The fourth resistor is connected to the output node and the ground by a fourth switching element(SW4). | ||||||
| 99 | 광량 검출회로와 이를 이용한 액정 표시장치 및 그의구동방법 | KR1020060111996 | 2006-11-14 | KR1020080043435A | 2008-05-19 | 김태환; 안중성; 문수환 |
| A light intensity detecting circuit, a liquid crystal display device having the same, and a driving method thereof are provided to reduce power consumption of a backlight by adjusting brightness of an LCD(Liquid Crystal Display) panel according to ambient brightness. A light intensity detecting circuit includes a clock signal generator(10), a light detector(20), and a voltage converter(30). The clock signal generator generates a clock signal. The light detector generates light current corresponding to incident light intensity according to the clock signal. The voltage converter converts the light current to detection voltage. The light detector includes a transistor which is driven by the clock signal to generate the light current. The transistor supplies the light current to the voltage converter. The light intensity detecting circuit includes an ADC(Analog Digital Converter) which performs an analog-digital conversion on the detection voltage to generate an intensity signal. | ||||||
| 100 | 전계발광표시장치 및 그 구동방법 | KR1020060060439 | 2006-06-30 | KR1020080001954A | 2008-01-04 | 주인수 |
| An electroluminescent display device and a driving method thereof are provided to detect contacted position in a touch screen by extracting varied current through output current. An electroluminescent display device includes LEDs, capacitors(Cst), driving thin film transistors(DT), switching units(ST), voltage amplifiers(202), and variable resistors(Rc). The LEDs(Light Emitting Diode) are illuminated by output current. The capacitors store data signals received from data lines. The driving thin film transistors, which are connected between a ground voltage and the LEDs, supply output current to the LEDs using the data signals. The switching units, which are connected between the capacitor and data lines, deliver the data signals using scan signals received from scan lines. The voltage amplifiers amplify voltages as much as initial output current by detecting the output current varied by external pressure signals. The variable resistors, which are connected between the LEDs and driving thin film transistors, vary the initial output current in response to amplified signals from the voltage amplifiers. | ||||||
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