baber/WOPTO huggingface dataset:
Patent KR-20000038045-A (KR)
Title: Structure of front grill of mechanical chamber of showcase
Inventor: CHO CHEOL JE
IPC: F25D23/00
Filed: 1998-12-03
Abstract: PURPOSE: A structure of a front grill of a mechanical chamber of a showcase is provided to reduce a number of required assembly parts and procedures and increase ventilation amount by form a grill assembly to be inserted in holders via protruded hinge shafts. CONSTITUTION: A structure of a front grill of a mechanical chamber of a showcase includes a pair of hinge shafts(51') protrudently fixed at an upper part in a side frame(31) of a pair of mechanical chambers, a pair of holders(51) formed with a hinge shaft groove(52) on the hinge shafts to be inserted in the mechanical chamber from inside to outside, and a plurality of grill plates(30) fixed between the pair of holders, wherein the holders are formed with a plurality of inserting grooves(53) for inserting both end parts of the grill plates, and fixing screw holes(55) facing to the mechanical chambers when the grill plates are firmly inserted into the inserting grooves.
Patent KR-19990063137-A (KR)
Title: 산화에 의한 하이드로퍼옥사이드의 제조 방법
IPC: C07C407/00
Filed: 1998-12-16
Abstract: 알칼리 금속 보레이트(예: 붕사), 중합체(예: 아크릴 중합체)의 알칼리 금속염 또는 특정 비율의 첨가된 물 또는 수화된 물과 혼합된 알칼리 시약(예: 붕사)일 수 있는 촉진제의 존재하에 아릴디알킬메탄(예: 쿠멘)을 산소와 반응시킴으로써 상응하는 하이드로퍼옥사이드로 전환시킨다.  특히 촉진제가 물을 포함할 때, 높은 수율의 하이드로퍼옥사이드를 수득한다.
Patent KR-20000040056-A (KR)
Title: Device for detecting ignition error of engine
Inventor: LEE JONG DEOK
IPC: F02P17/02
Filed: 1998-12-17
Abstract: PURPOSE: A device for detecting an ignition error is provided to detect an engine ignition error with a direct method of monitoring the ignition missing of an ignition coil. CONSTITUTION: Signals of an ignition first coil(10) and a cylinder position sensor(30) are converted and output into each pulse wave type digital signal in interfaces(20,40). Then, a counter unit(50) counts the pulse number of signals of the cylinder position sensor(30) fed after reset by taking the signal of the ignition first coil as a reset signal and outputs the result of counting to an output terminal. Accordingly, a signal for judging the abnormality and ignition missing of the device is output.
Patent KR-20000040075-A (KR)
Title: Apparatus for measuring polarization of cdma base station signal polarization
Inventor: YU JAE WOO
IPC: H04B17/00
Filed: 1998-12-17
Abstract: PURPOSE: An apparatus for measuring the polarization of a CDMA base station signal is provided to measure the electric wave polarization of a CDMA signal as well as linear polarization. CONSTITUTION: A dual polarization antenna(100) outputs the power magnitude of the horizontal and vertical components of an electric field. A polarization switch(200) outputs the circular polarization power value, vertical power value, horizontal polarization power value and electric field polarization power value of the input electric field. A band pass filter(300) removes signals except the PCS frequency band among signals relevant to power values output from the polarization switch(200). A low noise amplifier(400) amplifies the signal output from the band pass filter(300). A spectrum analyzer(500) measures the power magnitude of the signal output from the low noise amplifier(400).
Patent KR-20000042901-A (KR)
Title: Apparatus for processing frame of high-level data link control(hdlc) in wireless local loop(wll) data communication matching apparatus
Inventor: LEE TAE SOO
IPC: H04L12/28
Filed: 1998-12-28
Abstract: PURPOSE: An apparatus for processing a frame of a high-level data link control(HDLC) in a wireless local loop(WLL) data communication matching apparatus is provided to process an E/LAPD protocol to a 16th channel in a RPC(radio port controller) and performing a call process by extracting pure data information among character data information and removing a HDLC header and a CRC(cyclic redundancy check) bit in a hardware. CONSTITUTION: An E1 framer and transceiver server(21) converts a Rl/RNG signal inputted to an E1 line into a TTL signal. A HDLC controller array(22) transmits and receives signals through the E1 framer and transceiver server(21) and the E1. An IPC communication unit(23) is connected to the HDLC controller array(22) and a data bus, and performs an IPC process. A CPU(24) extracts a HDLC frame among traffic information inputted through the HDLC controller array(22) in a software, transmits data to an IOMM or a RPMI through the IPC communication unit(23), and performs control and maintenance functions of various chips. An EPLD(25) generates selecting signals of various chips, and is operated as a clock dividing circuit.
Patent KR-20000044827-A (KR)
Title: Thin film micromirror array-actuated device
Inventor: CHOI YOUNG JUN
IPC: G02F1/015
Filed: 1998-12-30
Abstract: PURPOSE: A TMA device is provided to improve driving effect by extending the driving length of the actuator and by solving the problem of the driving length being limited or minimized. CONSTITUTION: A device comprises an active matrix(5), a drain pad(60c), a membrane(130), a lower electrode(135), an electroplasive(140), an upper electrode(145), an actuator(100), a via contact(155), a common electrode line(160), an insulation layer(162), a conductive layer(165), and a driving mirror(200). The driving substrate includes the transistor and the protection layer is formed on the upper part of the driving substrate. The MOS transistor includes the gate poly, source area, and the drain area. The low temperature oxide and the metal layer are formed on the MOS transistor and the insulation layer is formed on the metal layer. The actuator is formed on the protection layer and the driving mirror is formed on the actuator. The common electrode line is formed between the actuator and the actuator driving part and an end of the actuator supporting part is electrically connected with the drain pad of the driving substrate by the via contact.
Patent KR-20000046045-A (KR)
Title: Device for generating phase variable in gmsk transmitter
Inventor: KIM HYE JEONG
IPC: H04B1/02
Filed: 1998-12-31
Abstract: PURPOSE: A device for generating a phase variable in a Gaussian minimum shift keying(GMSK) transmitter is provided to embody the GMSK transmitter which does not use a Gaussian low pass filter. CONSTITUTION: A device for generating a phase variable in a GMSK transmitter includes the following units. A plurality of operation blocks(100) consist of three multipliers for respectively multiplying three first input variables by three second input variables, and adders for adding values from the multipliers. A switching unit(130) connects an initial value in an initial stage, and connects a value obtained by adding an output value from a last delay to a third input variable, after the initial stage. A delay block(110) consists of an adder for adding an output value from the operation block(100) to a phase variable from the delay at the previous terminal, and a plurality of delays for delaying a value from the adder for a predetermined time. An output block(120) sequentially outputs a first phase variable from the switching unit(130) and phase variables from the plurality of delays of the delay block at predetermined intervals. As a result, a calculation amount is reduced and a circuit is simplified by calculating the phase variable with the plurality of multipliers, adders and delays.
Patent KR-20000046629-A (KR)
Title: Method for preparing low density powdery washing detergent
Inventor: KIM HYEON CHANG
IPC: C11D17/06
Filed: 1998-12-31
Abstract: PURPOSE: A method for preparing low density powdery washing detergent is provided to produce a low density powdery washing detergent which has uniform quality and excellent properties by means of a continuous process in a short time. CONSTITUTION: A method for preparing low density powdery washing detergent according to the present invention comprises: a) introducing alkylbenzene sulfonic acid, alkaline builder, water and steam to a reactor equipped with a stirring means; and b) introducing a surface modifier to the mixture of the said step a).
Patent KR-20000046712-A (KR)
Title: Apparatus for compensating transparency detector using reference light source
Inventor: KIM MUN JU
IPC: H01J9/14
Filed: 1998-12-31
Abstract: PURPOSE: An apparatus for compensating a transparency detector using a reference light source is provided to set a reference value for transparency and to compensate the transparency irrespective of the shape of the shadow mask. CONSTITUTION: An apparatus for compensating a transparency detector using a reference light source includes following steps. At the first step, a detection wave path as well as a compensation wave path are provided. The detection wave path and the compensation wave path are used to detect the transparency of the shadow mask. The detection wave path passes the shadow mask from a light source(11). The compensation wave path bypasses the shadow mask from a light source(11). At the second step, a wave path converter(20) is formed so as to selectively focus the two wave paths into one incident sensor. The incident sensor converts the analog signal of the light to a digital signal for a computer.
Patent KR-20000046902-A (KR)
Title: Modulator device of high speed communication system
Inventor: LEE DONG HWA
IPC: H04N19/89
Filed: 1998-12-31
Abstract: PURPOSE: A modulator device of a high speed communication system is provided to equalize channels without train sequence to reduce overall convergence time. CONSTITUTION: A modulator device of a high speed communication system includes an equalizer, a slicer, a carrier recovery and a tap update. The equalizer compensates channel distortion and outputs the result. The slicer determines the region of output signal of the equalizer. The carrier recovery receives the output signal of the slicer and increases or decreases the output of the equalizer by way of a multiplier. The tap update calculates cost function corresponding to each of plurality of probability means and updates the equalization coefficient of the equalizer by using the cost function calculated.
Patent KR-19990071532-A (KR)
Title: 킬레이트 이온 교환 수지로 포토레지스트 조성물 중의 금속이온을 감소시키는 방법
IPC: C08G8/00
Filed: 1996-11-21
Abstract: 본 발명은 중성 암모늄염 형태 또는 산 형태의 킬레이트 이온 교환 수지를 사용하여 금속 이온 함량이 낮은 포토레지스트 조성물을 제조하는 방법을 제공한다.  또한, 본 발명은 상기 포토레지스트 조성물을 사용하여 반도체 장치를 제조하는 방법도 제공한다.
Patent KR-19990071580-A (KR)
IPC: H04Q11/04
Filed: 1996-10-16
Abstract: Methods reduce transients in a redundant clock system forming part of a switch in a telecommunication network. In general, the transients, normally in the form of phase steps, are caused by reconfigurations in the clock system. Examples of reconfiguration are an inclusion or an exclusion of a redundant clock generating circuit, referred to as a plane, or an activation of a network synchronization. These transients are eliminated by successively adding an increment to a variable representative of a physical quantity in the clock generating system. In the case of an inclusion of a plane or an activation of the network synchronization, a positive increment is successively added to the gain of an amplifier. In the case of an exclusion of a plane, an increment is successively added to a phase difference representing signal.
Patent KR-19990071811-A (KR)
Title: 병원성 그람 음성 세균의 비독성 변이체
Filed: 1996-11-27
Abstract: 본 발명은 병원성 그람 음성 세균의 htrB 변이체를 동정, 단리 및 생산하는 방법을 제공하는 것이다.  상기 방법은 병원성 그람 음성 세균의 htrB 유전자를 기능성 htrB 단백질이 결핍되도록 변이화시켜서 야생형 병원성 그람 음성 세균에 포함되어 있는 2차 아실쇄 1개 이상이 결여되어 있고, 야생형 균주와 비교하여 실질적으로 감소된 독성을 보이는 변이체를 얻게된다.  또한, 본 발명은 예방적 유효량의 백신 제제를 투여함으로써 병원성 그람 음성 세균에 의한 감염에 대해 개체를 면역화시키기 위하여, htrB 변이체, 그로부터 단리된 내독소 또는 그로부터 단리된 내독소가 담체 단백질과 컨쥬게이션된 것을 함유하는 백신 제제를 사용하는 방법을 제공한다.
Patent KR-20000064634-A (KR)
Title: 이동하는웹재료에유체를도포하는장치및방법
IPC: B05C9/06
Filed: 1997-02-06
Abstract: 본 발명은 소정량의 유체를 수용하게 되어있는 저장조(16)가 마련된 본체(12)와, 각기 소정의 길이와 단면적을 가지는 복수의 유체 분배 채널(18)을 구비하는 코팅 장치에 관한 것으로, 상기 각 채널은 저장조와 유체 연통하며, 제1 단부인 근위 단부는 저장조(16)로부터 연장하며 제2 단부인 원위 단부는 오리피스에서 종결되는 도포 장치에 관한 것이다.  또한, 상기 도포 장치(10)는 분배 챔버(22)를 구비하며, 이 분배 챔버는 각 오리피스(20)로부터 배출되는 유체를 일반적으로 수용하며, 각 오리피스로부터 배출되는 유체를 하나 이상의 연속된 코팅 흐름으로 합류시키며, 유체의 압력을 균등하게 하며, 복수의 분배 채널(18)과 유체 연통되는 제1 측부와 본체로부터 유출된 유체가 웹에서 균일하게 분배되도록 개방되어 있는 제2 측부를 구비한다.  또한, 상기 도포 장치는 유체가 분배 챔버의 제2 측부로부터 배출되어 이동하는 웹에 침적됨에 따라 이동하는 웹에 있는 유체를 평활하게 하도록 분배 챔버의 제2 측부에 인접한 본체에 평활면과, 저장조(16)에 유체를 공급하도록 되어 있고 유체를 압력 작용하에서 저장조에 유지하도록 되어있는 유체 공급 수단을 구비하여, 유체는 저장조로부터 유체 분배 채널을 통하여 분배 챔버의 제1 측부로 이동하며, 분배 챔버를 통하여 분배 챔버의 제2 측부로부터 배출되어 이동하는 웹으로 이동된다.
Patent KR-20000010670-A (KR)
Title: Foods or drinks
Inventor: UMEDA YOSHIHISA
IPC: A61K36/02
Filed: 1997-05-15
Abstract: PURPOSE: A food or a drink for inducing an apoptosis is provided to contain a fucoidan being free from algins and to contain a fucoidan containing an apoptosis induction for supplying a good taste and an effectiveness for health. CONSTITUTION: Foods or drinks prepared by incorporating, adding and/or diluting fucoidan originating in fucoidan containing substances; fucoidan containing foods or drinks which are decreased in or freed from algins originating in fucoidan containing substances; and apoptosis inducing foods or drinks containing an effective amount of fucoidan having an apoptosis inducing effect. Herein, the algins is an algin acid, an algin salt, or an ester.
Patent KR-20000022112-A (KR)
Title: Motor vehicle clutch pedal vibration absorber
Inventor: FEDERICI LUCA
IPC: F16F15/08
Filed: 1998-04-23
Abstract: PURPOSE: A vibration absorber with a housing is provided wherein a block in elastic material is mounted and defines a cavity and sealingly closes it. CONSTITUTION: The shock absorber is connected with a receiver acting on disengaging supporter of a clutch of an automobile and comprises a body having a cavity and a block in elastic matter(22) is assembled in a housing(8) of body(7) and the cavity(9) forming room of fluid is sealed in closing way and is limited by the block in elastic matter(22) in intimate contact with housing(8). The housing(8) is supported for support with a first bored dis(23) interposed between the cavity(9) and the block in elastic matter(22).
Patent KR-19990067714-A (KR)
Title: 폴리페닐렌 에테르 및 스티렌계 공중합체의 반투명 블렌드
IPC: C08L71/12
Filed: 1999-01-05
Abstract: 본 발명은 폴리페닐렌 에테르 수지 및 스티렌계 블록 공중합체, 즉 선형 2블록 공중합체, 3블록 공중합체, 방사상 블록 공중합체 및/또는 테이프된 블록 공중합체의 반투명 열가소성 조성물의 제조방법에 관한 것이다.  본 발명의 방법에 의해 제조된 상기 조성물은 또한 결정 폴리스티렌 수지를 함유할 수 있고, 향상된 물성, 특히 유연성을 나타낼 수 있다. 
     본 발명은 또한 본 발명의 방법에 의해 제조된 조성물로 형성된 제품에 관한 것이다.
Patent KR-20000050405-A (KR)
Inventor: KIM HEI GON
IPC: H04N5/232
Filed: 1999-01-08
Abstract: PURPOSE: A method for detecting motion of a camera is provided to detect the motion of the camera regardless of the brightness of peripherals. CONSTITUTION: A method for detecting motion of a camera includes following steps. At the first step, a sampling with a predetermined size is performed at every frame. At the second step, a pixel deviation is calculated at each frame. At the third step, an absolute value is calculated by comparing the pixel deviation for calculated frames. At the forth step, the motion is detected when the absolute value exceeds reference value. At the fifth step, current motion is detected when the number of positions at which motion is detected at the preceding steps exceeds a predetermined number.
Patent KR-20000051043-A (KR)
Inventor: KIM JIN GYEONG
IPC: H01L21/336
Filed: 1999-01-18
Abstract: PURPOSE: A semiconductor device fabrication for an electric power is provided by forming a dielectric layer, a semi-insulating polycrystalline silicon (SIPOS), and a protective layer on the semiconductor substrate without contaminating SIPOS layer, so that this result may prevent a high fraction defective after device fabrication. CONSTITUTION: A fabrication method of the semiconductor device for the electric power contains the following steps: a step(1) to form the first semiconductor region(a) of the first conductive type on the semiconductor substrate; a step(2) to form the second semiconductor region(b) of the second conductive type, i.e., semiconductor conduction type in the selected region of the first semiconductor region(a); a step(3) to form the third semiconductor region(c) of the first conductive type at the selected region in the second semiconductor region(b), and at same time, to form the channel stop region(d) of the first conductive type so as to be separated from the second semiconductor region(b) with a fixed distance at the selected region in the first semiconductor region(a); a step(4) to form the dielectric layer at the front of the semiconductor substrate which the third semiconductor region(c) and the channel stop region(d) is formed; a step(5) to form orderly a semi-insulating polycrystalline silicon layer and a protective layer on the dielectric layer in a same chamber with an in-situ; a step(6) to pattern the dielectric layer, the semi-insulating polycrystalline silicon layer, and the protective layer and to expose the part of the second semiconductor region(b), the third semiconductor region(c), and the channel stop region(d); and a step(7) to form the first electrode, the second electrode, the third electrode, and an equipotential electrode so as to be connected electrically with (a),(b),(c), and (d) individually.
Patent KR-19990030492-A (KR)
Title: 통신기기용 안테나 구동 장치
IPC: H01Q1/27
Filed: 1999-01-25
Abstract: 통신 기기용 안테나를 이송시키는 안테나 구동 장치가 제공된다. 상기 구동 장치는 모터를 내장하고 있는 모터 케이싱 및 상기 모터의 회전축에 연결되어 모터의 회전수를 소정의 비율로 감속하여 출력하는 다수개의 기어로 이루어진 감속기어 조립체를 포함하는 모터-기어 조립체, 상기 감속기어 조립체의 출력축에 연결되어 감속된 회전력을 전달받으며, 상기 감속된 회전력을 상기 안테나의 길이방향으로 전달하므로써 상기 안테나를 이송시키는 로울러 조립체, 및 상기 안테나의 말단에 제공되어 안테나가 완전 인출되었을 경우 추가로 인출되는 것을 방지하는 스토퍼를 구비한다. 상기 로울러 조립체는 로울러 하우징 및 상기 로울러 하우징의 상부 및 하부에 각각 설치되는 한 쌍의 로울러를 포함한다. 상기 로울러 하우징은 외측 브라켓 및 상기 외측 브라켓에 결합되는 내측 브라켓으로 구성되며, 상기 외측 및 내측 브라켓은 한 쌍의 텐션 스프링에 의해 탄성적으로 결합된다. 상기 안테나 구동 장치는 안테나를 안정적으로 인출/인입을 시킴은 물론, 안테나가 본체로부터 이탈되는 것을 방지할 수 있다.
Patent KR-19990046334-A (KR)
Filed: 1999-02-11
Abstract: 본 발명은 발등덮개대가 앞뒤로 움직이는 전후가 따로 없는 욕실화이다. 
     통상 욕실화는 전후와 좌우가 각각 달라 신을 때는 앞뒤를 바꾸기 위해서 허리를 굽혀 손으로 바로 놓아야 하기 때문에 불편 하였으나 본 욕실화는 전후가 따로 없어 바로 선채로 신을 수 있는 욕실화이다. 
     제1도와 같이 본 발명은 발등덮개대(2)가 욕실화 발판 중심부의 연결핀(4)에 연결되어 앞뒤로 자유 자재로 움직일 수 있어 앞 뒤 어느쪽에서 신어도 허리를 굽혀 손으로 욕실화를 바로 놓아 신을 필요없이 선채로 바로 신을 수 있으며, 좌우측 하단부 조정핀 (5)(5')이 발등 덮개대 하단부의 굴곡으로 길쭉하게 뚫린 좌우 천공 (6)(6')을 통해서 위 아래로 움직임이 조정되므로 발등 덮개대(2)가 앞뒤로 일정한 각도 이상 갈수없게 조정됨과 동시에 발등덮개대 좌우 하단부(2')(2")가 좌우 옆으로 벌어 지지않게 잡아주고, 물이 묻어도 쉽게 흐릴수 있도록 욕실화 발판 중심부의 불록한 단면부 (3')를 형성한 전후가 따로 없는 욕실화이다.
Patent KR-20000061106-A (KR)
Inventor: BAE JAE HEUNG
IPC: H02J7/00
Filed: 1999-03-19
Abstract: PURPOSE: A voice output device for a portable phone charger is provided to prevent a battery from an overcharge causing shortening a length of life by using a voice notification about a beginning and a finishing. CONSTITUTION: A voice output device for a portable phone charger includes a detecting section of a micro switch type for detecting a voltage of voltage selecting circuit section. A voice controlling and amplifying section, connected with a power section connected with a direct current(DC) output section of the charger, amplifies a recorded voice by a detected signal of the detecting section for a determined time(about 20 or 30 seconds), and outputs the voice through an output section(speaker). The detecting section is connected with an output voltage control circuit of the charger.
Patent KR-20000061686-A (KR)
Inventor: JANG SUNG HUN
IPC: G03B17/38
Filed: 1999-03-30
Abstract: PURPOSE: A radio strobo remote control device is provided to remotely control a strobo of the receiver side by transmitting data from a transmitter to the receiver without any wire. CONSTITUTION: A radio strobo remote control device comprises a transmission controlling section, a transmission modulator, a high frequency transmitting section, a high frequency receiving section, a data detecting section, a reception controlling section, a relay controlling section, and a relay box. The transmission controlling section recognizes the camera shutter signal data, and transfers the camera shutter signal data as strobo operating data corresponding to the camera shutter signal data. The transmission modulator modulates the strobo operating data transferred through the transmission controlling section. The high frequency transmitting section amplifies the signal flowing through the transmission modulator into a high frequency. The high frequency receiving section amplifies the high frequency signal introduced through a receiving antenna. The reception controlling section analyzes the data demodulated in the data detecting section, and applies strobo operating instructions.
Patent KR-20000047381-A (KR)
Inventor: KIM SI WON
IPC: H04B7/26
Filed: 1999-04-09
Abstract: PURPOSE: A digital data receiving method of a wireless telephone is provided to reduce error generation due to the hanging down, being pulled and glitch of received digital data bits by using a digital data receiving software of a wireless telephone. CONSTITUTION: A timer is aligned to the level variation of high and low at the bit starting point of a digital data received from a wireless telephone(S1). For alignment, the timer in a microprocessor is driven(S2). The high and low levels of bits received continually for a required time are sampled and received by the bit(S3). The variation of high and low levels is checked(S4). If there is no level variation, it is checked whether the timer is proceeding as much as one bit(S5). If there is level variation as a case that hanging down, being pulled and glitch exist in the received digital data bits, it is checked whether the timer is within the range of 75 percent of one bit and above or 25 percent or less(S6). In case that the timer proceeds as much as one bit, a bit of which a high or low value of one bit is determined is stored(S9).
Patent KR-19990073025-A (KR)
Title: 위폐감식회로
Filed: 1999-04-20
Abstract: 본 발명의 목적은 위조된 화폐나 위조된 유가증권 등을 정확하고 신속하게 판별해 낼 수 있는 위폐감식회로를 제공함에 있다. 
     상기 목적을 달성하기 위한 본 발명은 AC입력을 직류로 변환하여 감식회로에 동작전원을 공급하는 정류부(10)와, 검사화폐의 투입을 감지하는 화폐투입인식부 (110)와, 상기 화폐투입인식부의 인식출력에 따라 스타트신호를 발생하는 타이머 스타트부(120)와, 상기 타이머스타트부로부터 스타트신호가 입력되면 일정시간동안 하이레벨을 출력하는 타이머부(20)와, 상기 타이머부의 하이레벨 출력으로 동작하는 릴레이구동부(30) 및 전원스위치부(40)와, 상기 릴레이구동부에 의해 발생되는 회로전압으로 구동하는 릴레이부(50)와, 상기 전원스위치부를 통하여 회로전압을 공급받아 작동하는 위폐판별부(60)와, 상기 위폐판별부의 출력감도 조절을 통해 지폐와 수표를 구분 인식하기 위한 지폐/수표 선택부(70)와, 상기 지폐/수표 선택부의 출력전압 값을 기준전압 값에 비교하는 비교부(80)와, 상기 비교부의 하이레벨출력에 따라 회로전압을 발생하는 부저/표시기구동부(90)와, 상기 부저/표시기구동부에 의해 동작하는 판별표시부(100)와, 상기 릴레이부(50)의 접점(53)을 통한 AC입력전압을 받아 자외선램프 점등전압을 발생하는 점등회로부(130)와, 상기 점등회로부에 의해 발광하는 자외선램프부(150)를 포함한다.
Patent KR-20000066857-A (KR)
Inventor: PARK SANG ON
IPC: G11B7/09
Filed: 1999-04-21
Abstract: PURPOSE: A method of reproducing a record of an optical recording medium detects a defocus from a changing amount of a signal detected from a header area biasedly aligned with a center portion of a track. CONSTITUTION: A method of reproducing a record of an optical recording medium comprises steps of calculating a difference between signals output from a section having a different phase in a non-recording area, regarding as a defocus state if the difference signal is over a preset reference extent and outputting a result, and performing a focus servo from the result. In the step of calculating the difference signal, the difference signal is calculated using only a part of the non-recording area or using a various frequency oscillator of the non-recording area. The step of detecting the defocus further comprises a step of regarding as a focus-on state if the difference signal is in the preset reference extent and then outputting a result. The step of performing the focus servo further comprises a step of detecting a defocus direction from a positive or negative sign of the difference signal.