baber/WOPTO huggingface dataset:
Patent KR-930003930-B1 (KR)
Title: Double source coupled fet logic type buffer
Inventor: LEE CHANG-SOK
IPC: H03K19/00
Filed: 1990-10-10
Granted: 1993-05-15
Abstract: The double source coupled FET logic type buffer circuit which load driving power is excellent when using as the sense  amplifier of the memory comprises a number of FETs which gates are connected each other and in parallel so that the high gate  voltage  can  be maintained when the output voltage  rises  up  and  the  low  gate voltage when the output voltage drops down.  The  sources  of  the enhancement type FETs (J13-14) are connected to the drain  of  the depletion type FET (J15). The gate of the depletion type FET (J20) at which the power voltage (Vss) is applied is  connected  to  the gate of the depletion type FET (J15).
Patent KR-920008379-B1 (KR)
Title: Gene for granulocyte & macrophage-colony stimulating factor
Inventor: JO JUNG-MYONG
IPC: C12N15/19
Filed: 1990-12-21
Granted: 1992-09-26
Abstract: A human granulocyte and macrophage-colony stimulating  factor gene (GM-CSF) drived from baker's  yeast  contains  a  restriction site of Bgl II and Sac I, DNA sequence of GM-CSF gene having  high expression actity in yeast  cell,  and  is  conjugated  with  gene having Xba  I  restriction  site  in  amino  terminal  and  Sal  I restriction site in carboxy terminal. The human GM-CSF  is  useful for inducing restoration  of  hematosis  cell,  medical  treating myeloid leukemia, etc..
Patent KR-930008079-B1 (KR)
Title: Method of fabricating for eprom
Inventor: KIM JONG-HO
IPC: H01L27/115
Filed: 1991-01-07
Granted: 1993-08-25
Abstract: An EPROM cell with a trench  structure  is  prepared  by  (1) forming P/R on substrate selectively and ion implanting with  high energy to form a source  and  a  drain,  (2)  ion  implanting  for channel after forming an oxide film and a gate trench  by  etching the region except the source/drain, (3) forming a floating gate in the trench by forming an oxide film and a  polysilicon  film,  and etching them, (4) forming a selective gate on the floating gate by forming an oxide and a polysilicon film, and etching, (5)  forming a metal after forming an oxide film and a contact hole.
Patent KR-930010122-B1 (KR)
Title: Making method of cmos cell
Inventor: AN YONG-KYU
IPC: H01L27/092
Filed: 1991-02-13
Granted: 1993-10-14
Abstract: The CMOS has a lesser number of processes by using  the  used maskes at NMOS process,  is  prepared  by  forming  a  photoresist pattern (12) on substrate (11),  selectively  forming  oxide  film (13), implanting N-type impurity, forming polysilicon film (14) at all area, selectively etching the film (14) and oxide film (13) by using photoresist pattern (22)  to  form  gate  (14),  selectively forming n-type impurity doped polysilicon film (15), driving in to form a high concentration n type area, forming oxide film (16)  on the gate (14) and the oxide film (16), removing photoresist  (12), forming silicon  epitaxial  film  (17)  on  all   area,   forming photoresist pattern (12') and selectively forming oxide film (13') etc..
Patent KR-940010152-B1 (KR)
Title: Metal defusing system for ohmic contact
Inventor: KIM TAE-JIN
IPC: H01L21/28
Filed: 1991-05-11
Granted: 1994-10-22
Abstract: The metal diffusion system can obtain better conditioned (regularity, symmetricity) annealing than the conventional soldering and anneal simultaneously a multiple of semicondustors based on the area of a heater. The system comprises an annealing furnace (20); a vacuum pump (30) for evacuating the annealing furnace (20); a temp. control means (40) controlling the temp. of the furnace (20): a halogen lamp (9) generating heat: a heater (6) transferring the heat from the halogen lamp (9); a mica plate (10) making the semiconductor (2) separate from the heater (6).
Patent KR-940001115-B1 (KR)
Title: Method of watching thief wirelessly and circuit for transmitting the state
Inventor: LEE HWI-DONG
IPC: G08B25/10
Filed: 1991-05-27
Granted: 1994-02-14
Abstract: The wireless watchdog transmission circuit in a wireless sensing circuit for preventing crimes includes a sensor, a differentiator, a wave rectifier, a trigger, a cord switch, an encoder, a low frequency amplifier, an oscillator, a mixer and a high frequency amplifier, and carries out the steps of initializing a system, setting the supervision or corresponding area or informing of the door open state, checking whether abnormal condition occurs in the set area, confirming the congruence of a transmitter cord and the main body cord to check the occurrence of the abnormal state of the set area, and providing alarm and state display until an alarm release input is monitored for releasing the alarm to loop the setting and informing step, thereby notifying the door open state even for a wireless watchdog sensor and lengthening the durability of battery.
Patent KR-0169133-B1 (KR)
Inventor: FURUKAWA MASAHIRO
IPC: A01K/
Filed: 1991-08-31
Granted: 1998-12-01
Abstract: 적어도 원대, 손잡이대, 끝대를 구성대로서 가진 이 낚싯대는 또한 손잡이대를 원대에, 이 원대에 대하여 신장하는 인출위치와, 원대에 대하여 격납하는 인입위치에 신축가능하게 지지하여, 원대와 손잡이대(2)와의 사이에 인출 및 인입조작으로 각 위치에 한쪽에 선택적으로 걸리게 하는 신축기구를 가지고 있다. 
     본 발명은 또한 각 구성대중, 인접하는 적어도 2개의 구성대의 사이에, 이들 2개의 구성대를 임의의 위치에서 고정할 수 있고, 이 고정위치의 선택에 의해 길이를 조절하는 길이조절기구(10)를 구비한 낚싯대를 제공한다.
Patent KR-100237996-B1 (KR)
Inventor: TOKUTAKE TOSINORI
IPC: F28D9/04
Filed: 1991-10-07
Granted: 2000-01-15
Abstract: 복수개의 튜브(1)의 각각의 양쪽 끝이 중공헤더(3),(4)에 연결되어 있어, 튜브(1)내의 흐름이 헤더(3),(4)와 연결되어 흐를 수 있도록 되어 있다. 
     슬리트홈(13)은 헤더(3),(4)의 외표면에서 외주면을 따라서 형성되어 있으며, 격벽(10)이 슬리트홈(13)에 끼워진다. 
     각 격벽(10)은 걸쳐진 상태로 슬리트홈(13)을 통해서 헤더(3),(4)내로 끼워지는 2장의 격리판(10a),(10b)으로 되어 있다. 
     또 다른 실시예로, 격리판은 각각의 격리판의 한쪽 끝을 서로 연결하여, 연결되지 않은 다른쪽 끝부분이 슬리트홈의 끝부분과 탄성이 있는 상태로 접촉하도록 할 수 있다. 
     그후 격벽을 납땜하여 헤더와 일체가 되도록 하였다.
Patent KR-100218574-B1 (KR)
Inventor: KURTO SHIYUTOORU
IPC: F16L37/092
Filed: 1991-12-06
Granted: 1999-09-01
Abstract: 본 발명은 고압수관(11)의 결합장치에 관한 것이다. 이 결합장치에는 케이싱 절취부(4)가 달린 케이싱(2)이 포함되어 있고, 이 케이싱 절취부내에는 인장핀셋(8)이 축방향으로 이동할 수 있게 배치되어 있다. 인장핀셋에는 축방향에 따라 내측으로 다수의 고정요소(19)가 있고, 이 고정요소들은 케이스측의 면(32, 33)과의 협동에 의하여 고압수관(11)을 지지하는 고정 위치와 분리위치 사이를 이동할 수 있다. 고정요소(19)는 굴곡부(23)를 거쳐 조작용 분절(24)에 부착되고, 조작용 분절을 안전 돌출부(36)를 이용하여 이 안전 돌출부가 케이싱(2)의 정지숄더(37)에 맞물리게 함으로써 인장핀셋(8)이 케이싱 절취부(4)로부터 끌려나오는 것을 방지한다. 
     고정 요소에는 고정작용을 원활하게 수행할 수 있도록 선형의 고정연단(48)이 제공되어 있다.
Patent KR-940000982-B1 (KR)
Title: Hi-fi signal and normal signal automatic switching apparatus of hi-fi vcr
Inventor: LEE CHOL-SONG
IPC: G11B20/24
Filed: 1991-12-19
Granted: 1994-02-07
Abstract: The apparatus for switching between the HIFI mode and the normal mode in HIFI VCR comprises a dropout detector for generating dropout pulse, a switch controlled by the pulse, an envelope detector for detecting envelope of the output of a bandpass filter by control of the switch, a system controller for selecting HIFI mode or normal mode by envelope pulse, and an audio output means for outputting HIFI or normal mode selectively from an attenuation circuit by control of a system controller. Thus this invention obtains high fidelity sound regardless of any damage to the video tape.
Patent KR-940008465-B1 (KR)
Title: Treatment agent for polyglycolic acid fiber spinning
Inventor: KWON I-SONG
IPC: D06M13/295
Filed: 1992-04-09
Granted: 1994-09-15
Abstract: The treatment agent for spinning is prepd. by mixing 1-5 wt.% of polyethylene glycol alkyl ethoxylate and 5-10 wt.% of sorbitanemonostearate and 85-94 wt.% of polyoxyethylene alkyl ether.
Patent KR-960001134-B1 (KR)
Inventor: TAKUMA HENMI
IPC: B60L1/14
Filed: 1992-05-13
Granted: 1996-01-19
Abstract: 내용 없음.
Patent KR-0130640-B1 (KR)
Inventor: KANG WON-CHOL
IPC: G01S5/04
Filed: 1992-06-04
Granted: 1998-10-01
Abstract: 자동 차량 추적 장치에서 차량의 운용이 중단된다고 할지라도 차량을 계속 추적할 수 있도록 하기 위한 방법으로, 차량의 운용여부의 판단을 위해 차량의 점화스위치 상태를 점검하는 제1과정과, 점화스위치의 상태가 차량의 방치 여부를 나타내는 미리 설정된 제1시간주기동안 계속 턴오프 상태이면, 차량 추적 장치에 배터리 전원을 공급하고, 미리 설정된 제1호출신호 수신구간동안 마스터스테이션으로부터 호출신호를 수신할 때마다 현 차량의 위치신호를 송출하며, 제1호출신호 수신구간동안 상기 호출신호가 수신되지 않으면, 배터리 전원의 공급을 차단한 후 제1과정으로 돌아가는 제2과정과, 상기 제1과정에서 점화스위치의 상태가 턴온 상태이면, 미리 설정된 제2호출신호 수신구간동안 호출신호가 수신되지 않으면, 제1과정으로 돌아가는 제3과정으로 이루어진다.
Patent KR-960001381-B1 (KR)
Inventor: TSURU SUMIAKI
IPC: B01D53/38
Filed: 1992-06-05
Granted: 1996-01-26
Abstract: 내용 없음.
Patent KR-950012026-B1 (KR)
Inventor: MIYAMOTO TAKAYUKI
IPC: G11C5/02
Filed: 1992-06-22
Granted: 1995-10-13
Abstract: 내용 없음.
Patent KR-100209103-B1 (KR)
Inventor: KITANAKA KASSMI
IPC: E02F7/00
Filed: 1992-06-23
Granted: 1999-07-15
Abstract: 지중 연속벽 형성용 굴삭장치는 지면상에 가동하는 이동 트롤리와 상기 트롤리상에 구성된 상부 프레임을 포함한다. 상기 굴삭장치는 또한 수직으로 신장하고 트롤리위의 상부 프레임의 일측에 수직가동하게 제공되고 플랜지를 통해 그리로 분리가능하게 접속된 보충 신장 안내 기둥 부재에 의해 길이로 가변하는 안내기둥을 포함한다. 체인 스프로켓은 그의 상하단부에서 안내 기둥위에, 그리고 각기 상기 안내 기둥의 상단부에서 체인 스프로켓의 일단하방에 제공된다. 엔들리스 체인은 체인 스프로켓중 적어도 하나의 회전에 의해 구동되는 체인 스프로켓 주위를 신장한다. 
     다수의 굴삭장치 버키트는 엔들리스 체인 버키트형 컷터를 형성하기 위해 적당한 간격으로 엔들리스 체인위에 제공된다.
Patent KR-950000494-B1 (KR)
Title: Small change counting method for cash register
Inventor: JO YONG-HWAN
IPC: G07G1/12
Filed: 1992-08-06
Granted: 1995-01-24
Abstract: The method provides functions to perform a change calculation by a predefined (default) rule or by a user programmed rule. A user performs programming with a keyborder (40) not to occur 1 won coins with money change. If the user sets a system flag in memory (10) to 1, the default rule is applied to calculate a money change. The rule is to calculate a change with 0 won from 1 won to 2 won, with 5 won from 3 won to 7 won, and with 10 won from 8 won to 9 won. If the user sets the system flag to 2, the change calculation is performed by the programmed upper and lower boundary values corresponding to 0 won, 5 won, 10 won, respectively.
Patent KR-960001325-B1 (KR)
Inventor: KUSHIYAMA NATSUKI
IPC: G11C29/50
Filed: 1992-11-20
Granted: 1996-01-25
Abstract: 내용 없음.
Patent KR-950007069-B1 (KR)
Title: Method of clothes quantity and water-level determination
Inventor: OH DONG-IL
IPC: D06F33/02
Filed: 1992-12-12
Granted: 1995-06-30
Abstract: (1) when a motor is switched on, for a designated time, counting the number of pulses and integrating a current convertive value for analog/digital converting the current-amplified signal of the motor; (2) when the motor is switched off, for a designated time, integrating an average current value; and (3) after repeating the steps (1) and (2) for a designated number of times, combining the integrated pulse value and the average current value so as to determine a washing amount and a water level.
Patent KR-960007845-B1 (KR)
Title: Electrolytes liquid for the electrolytic condensor
Inventor: JANG TAE-YEUP
IPC: H01G9/02
Filed: 1992-12-30
Granted: 1996-06-12
Abstract: The aluminum electrolytic liquid is composed of ethylene glycol as main solvent, ammonium adipate as solute and 0.5-5 wt% phenol based paranitrophenol or 0.5-5 wt% benzene based paranitrobenzene as an additive. The electrolytic liquid can be used at such higher temp. as 85-125 deg.C for longer time than established electrolytic liquid, and the capacity of its condenser is independant of temperature change.
Patent KR-950000734-B1 (KR)
Title: Polyester fiber having an excellent dye's migration activity and preparing method thereof
Inventor: KIM KWANG-TAE
IPC: D01F6/62
Filed: 1992-12-31
Granted: 1995-01-28
Abstract: The dyeable polyester fiber is produced by (a) melt spinning a polyethylene terephthalate polymer contg. 0.35 wt.% titanium oxide and having 0.63 intrinsic viscosity in the spinneret (1), (b) cool-solidifying the polyester filament (2) in the cooling device (3), (c) passing the filament through the oiling device (4), (d) passing the filament through the first heating zone (5) of 80 deg.C, the first godet roller (6) of 60 deg.C and the second godet roller (7) of the room temp., and (e) taking it up on the take-up roller (9).
Patent KR-100227240-B1 (KR)
Inventor: DAVIS SAMUEL
IPC: A61K38/00
Filed: 1991-06-03
Granted: 1999-12-01
Abstract: 본 발명은 CNTFR에 관계되며 CNTF수용체의 아미노산 서열과 핵산 서열을 제공한다. 또한 i) CNTF활성을 감지할 수 있는 검사시스템, ii) CNTF의 생리적 역할을 연구하는 모델 시스템, iii) CNTF관련 신경질환을 확인하는 진단기술, iv) CNTF관련 신경과 근육질환에서의 치료용 요법적 기술과, v) CNTF와 CNTFR에 유사한 분자를 확인하는 방법에 관계한다.
Patent KR-950013275-B1 (KR)
Title: Gear in the machines for extracting juices
Inventor: CHAE MYONG-SU
IPC: A23N1/00
Filed: 1993-03-15
Granted: 1995-11-02
Abstract: The paired gear bars, for the juicer, respectively having a helical gear part(2) for crushing and carrying raw materials and a screw part(3) squeezing the crushed raw material transferred from the gear part(2) to produce juice are each provided with a spiral groove(7) in the circumference of gear part(2) to have a pitch larger than the pitch of the gears and facilitate the transfer of the crushed raw material for better production of juice.
Patent KR-0186041-B1 (KR)
Inventor: KIM DO-WON
IPC: H04B7/00
Filed: 1993-03-25
Granted: 1999-05-15
Abstract: 본 발명은 무선전송장치에 있어서 다중화부와 RF처리부간에 데이터 통신을 위해 코드를 변환하는 코드 변환회로에 관한 것이다. 
     본 발명은 수신되는 64Kbps데이터를 데이터단(D)으로 입력하여 클럭단(CLK)으로 인가되는 256Kbps의 기준클럭신호에 의해 리타이밍된 데이터(X1)를 출력하는 디플립플롭(11)과, 상기 디플립플롭(11)의 출력단(Q)으로부터 출력되는 리타이밍 데이터(X1)를 데이터단(D)으로 입력하여 클럭단(CLK)으로 인가되는 256Kbps의 기준클럭신호에 의해 지연된 데이터(X3)를 출력하는 디플립플롭(12)과, 클럭단(CLK)으로 인가되는 256Kbps의 기준클럭신호에 의해 카운팅하여 출력단자(Q1)를 통해 분주된 제2분주 클럭신호를 출력하는 분주기(14)와, 상기 디플립플롭(12)의 출력단(Q)으로 출력된 데이터(X3)와 상기 분주기(14)의 출력단(Q1)으로 출력되는 제2분주클럭신호를 각각 입력하여 256Kbps의 포지티브 데이터로 변환하는 앤드게이트(13)로 구성하는 제1코드변환수단과, 클럭단(CLK)으로 인가되는 256Kbps의 기준클럭신호에 의해 카운팅하여 출력단자(Q0)를 통해 분주된 제1분주 클럭신호를 출력하는 분주기(14)와, 상기 분주기(14)의 출력단(Q0)으로 출력된 제1분주 클럭신호가 버퍼(15)를 통해 입력된 데이터(X5)와 상기 디플립플롭(11)의 출력단(Q)으로 출력된 데이터(X1)가 반전소자(16)를 통해 입력된 데이터(X6)를 각각 입력하여 256Kbps의 네가티브 데이터(X7)로 변환하는 앤드게이트(17)와, 상기 앤드게이트(17)로부터 출력된 256Kbps의 네가티브 데이터(X7)를 데이터단(D)으로 입력하여 클럭단자(CLK)로 인가되는 256Kbps의 기준클럭신호에 지연시켜 출력단(Q)으로 지연된 데이터(X8)를 출력하는 디플립플롭(18)으로 구성하는 제2코드변환수단과, 상기 제1 및 제2코드변환수단에 의해 코드변환된 256Kbps데이터를 입력하여 매 8번째 비트마다 바이어레이션을 삽입 출력하는 바이어레이션 삽입수단으로 구성한다.
Patent KR-950012152-B1 (KR)
Title: Controlling method removing frost of airconditioner
Inventor: KO POM-SOK
IPC: F24F11/02
Filed: 1993-03-25
Granted: 1995-10-14
Abstract: The method comprises the steps of inputting an initialization value, sensing an indoor temperature and a pipe temperature, counting the time during twenty to forty minutes when the pipe temperature is at 3 deg.C, obtaining the difference between the indoor temperature and the pipe temperature after the completion of the counting operation, and performing a defrosting operation when the difference arrives at a setting value.
Patent KR-100224570-B1 (KR)
Inventor: MASAYUKI TAMURA
IPC: B65H54/34
Filed: 1993-03-25
Granted: 1999-10-15
Abstract: 실패의 초기 실 부분의 휘감긴 실 사리를 제거하는 방법으로서, 보빈에 감겨있는 휘감긴 실 사리가 보빈의 원주를 따라 보빈 단부에 성형된 슬릿 형상의 홈에 의해 쥐어지고 이송 꼬리에 이어지는 동안에 제거되는 방법에 있어서, 상기 방법이 
     휘감긴 실 사리의 절단된 단부가 흡인에 의해 유지되는 동안 슬릿 형상의 홈이 없는 보빈 단부상의 위치에서 휘감긴 실 사리를 절단하는 단계와, 
     절단된 단부를 집개로 쥐는 단계와, 
     집개를 꼬는 방향으로 회전시키는 동안 휘감긴 실 사리를 보빈의 주변을 따라 슬릿 형상의 홈으로부터 제거하는 단계로 구성되어 꼬인 실이 집개로 유지되고 있는 휘감긴 실 사리에 전달됨을 특징으로 하는 실패의 초기 실 부분의 휘감긴 실 사리를 제거하는 방법.
Patent KR-950014580-B1 (KR)
Title: Trampoline
Inventor: OH JU-HWAN
IPC: A63B5/11
Filed: 1993-03-29
Granted: 1995-12-09
Abstract: The pneumatic trampoline, used as an athletic goods for improving jumping force, manages a stable vibration mode and an ample vibration amplitude, prevents failure shock of a piston at an upper limit, and regulates the pressure corresponding to the weight of a user. It comprises a pneumatic pressure means(2) for vibrating a stepping board(1), including a cylinder(21), a piston(22) and a rod(25) fixed to the piston(22) and extruded upwardly from a header(24); a means(3) for rotating the stepping board(1), including a support plate(31), a bearing seat(32), a bearing(34) and a bolt(35); a lifting means(4) for gradually moving up the position of the board(1), including check valves(41,42); a piston shock absorber(5); a pneumatic pressure regulator(6), including a cylinder(61), a piston(62) and a rotary handle(63).
Patent KR-0129431-B1 (KR)
Title: Liquid cooling apparatus used for airconditioner
Inventor: GEORGE MAUER
IPC: F24F5/00
Filed: 1993-03-30
Granted: 1998-04-08
Abstract: The present invention relates to a refrigeration apparatus for fluids, comprising a container (5) for producing and storing ice and means (12, 9) for making circulate in this tank (5) respectively a refrigerated fluid and a fluid to be refrigerated by placing them in a heat exchange relationship with the ice. Said fluids are gaseous and are for example air and they can be made to circulate in the container (5) either independently of one another or alternately, in which case one and the same fluid can constitute the refrigerated fluid and the fluid to be refrigerated alternately. The design of the refrigeration apparatus is simplified by it and its use is made more reliable by it. <IMAGE>
Patent KR-0177840-B1 (KR)
Title: Octahydronaphthalene oxime derivatives for cholesterol biosynthesis inhibition, their preparation and use
Inventor: KOGEN HIROSHI
IPC: C07C251/60
Filed: 1993-05-15
Granted: 1999-05-15
Abstract: Compounds of formula (I) : <CHEM> (in which: R is hydrogen, methyl or hydroxy; X is alkyl, alkenyl, cycloalkyl, aryl, aralkyl, or a heterocyclic group; A is a single bond, or an alkylene, alkenylene, alkynylene or alkadienylene group; Y is hydrogen, aryl, cycloalkyl or a heterocyclic group) have the ability to inhibit the biosynthesis of cholesterol, and can thus be used for the treatment and prophylaxis of diseases relating to high blood cholesterol levels.
Patent KR-950007120-B1 (KR)
Title: Protection circuit for a/d conversion speed and data damage
Inventor: PARK SO-UK
IPC: G06F3/02
Filed: 1993-05-19
Granted: 1995-06-30
Abstract: The circuit automatically converts an input channel of A/D converter and checks an overrun occurred at A/D convert. It comprises : (i) a counter(110) incrementing a multiplexing channel of MUX; (ii) a comparator(120) multiplexing a start channel loaded in counter; (iii) a buffer(130) that permits start channel signal to counter and final channel +1 signal to comparator; (iv) a delay unit(150); (v) a multiplexing channel automatic increment unit(100); and (vi) an A/D convert overrun checking means(200) checking an overrun of an A/D convert according to an A/D convert ending signal and A/D convert value.
Patent KR-950000461-B1 (KR)
Title: Watering device for tableware washing machine
Inventor: YUN HONG-YOL
IPC: A47L15/00
Filed: 1993-06-04
Granted: 1995-01-20
Abstract: (A) a moving filter (6) that closes one of supply and drain pump (4)(5) for changing flow direction of washing water by rise and fall and is installed at a flow turning point, (B) a driving means jointed to the filter part (6) to move the filter, when water supplied and drained. The moving filter (6) consists of a frame (7) having a fine filteration sieve (8) and top/bottom blocking members (9)(10). The driving means comprises: an operation shaft (11) jointed to a fixed hole (9a) formed in the top blocking member (9), an electromagnet (12) for operating the shaft (11), a spring (13) for giving an elastic force for the shaft.
Patent KR-960004509-B1 (KR)
Title: Receiving circuit in tv
Inventor: JUNG KWON-SOOL
IPC: H04N5/44
Filed: 1993-07-06
Granted: 1996-04-06
Abstract: The circuit is for improving a S/N ratio for broadcasting signal having a weak field strength. The circuit includes a prefilter(11) for extracting a broadcasting signal from received signal by an antenna, a tuner(12) for tuning broadcasting signal corresponding to a selected channel, an high frequency amplifier(17) for amplifying output signal of the tuner(12), a switch(17) for sending output signal of the prefilter(11) to the high frequency amplifier directly or through the tuner(12), and a discriminator(18) for generating a switching control signal according to AGC level.
Patent KR-970000441-B1 (KR)
Title: Porous ceramic materials using waste materials
Inventor: SEO TAE-SOO
IPC: C04B38/06
Filed: 1993-07-27
Granted: 1997-01-11
Abstract: A porous ceramic material is produced by mixing and calcinating ceramic sources with pulp slop as binding agent; waste pulp, waste synthetic resin or waste rubber as pore medium; and sodium silicate as strength enhancer. Said ceramic sources comprise at least one of heavy components consisting of kaoline, agalmatolite, clay and alumina, and at least one of light components consisting of diatom, coal ash and zeolite. The ceramic material shows excellent heat insulation, fire proof, light-weight, and acoustic absorption ability.
Patent KR-100259009-B1 (KR)
Title: Semiconductor laser diode
Inventor: KIM JEONG-RYEOL
IPC: H01S5/40
Filed: 1993-09-23
Granted: 2000-06-15
Abstract: PURPOSE: A laser diode is provided to oscillate laser light of short wavelength band only using one time epitaxial growth and to allow reappearance in manufacture. CONSTITUTION: A laser diode includes a n¬+-GaAs substrate(31) and an n-GaInP buffer layer(32) formed on the n¬+-GaAs substrate(31). An n-AlGaP clad layer(33) is stacked on the n-GaInP buffer layer(32). An undoped AlGaInP-SCH(separate confinement heterostructure) layer(34) is stacked on the n-AlGaInP clad layer(33). A plurality of undoped GaInP active layers(35) having slant faces are consecutively stacked on the AlGaInP-SCH layer(34). An AlGaInP-SCH layer(36) is also stacked on the GaInP active layers(35). A P-AlGaInP clad layer(37) and an n-AlInP current confinement layer(38) are sequentially formed on the AlGaInP-SCH layer(36). A p-AllnP layer(39) is then formed on the n-AllnP current confinement layer(38). A p-GaInP buffer layer(40) and a p¬+- GaAs cap layer(41) are sequentially stacked on the p-AlInP layer(39).
Patent KR-940002157-B1 (KR)
Title: Horizontal compression of pixels in a reduced-size video image
Inventor: CHRISTOPHER TODD J
IPC: H04N5/262
Filed: 1993-10-30
Granted: 1994-03-18
Abstract: A pix-in-pix television display includes circuitry for reducing the amount of memory needed to hold one field of the reduced size image. In the display apparatus, digital samples representing the large and small picture signals are developed at substantially equal rates by separate circuitry. Subsampling circuitry stores one out of every five of the samples representing a horizontal line of the small picture. These samples are displayed, synchronous with the large picture at a rate three-fifths times the display rate of the large picture samples to produce an apparent size reduction of one-third in the horizontal direction.
Patent KR-960007211-B1 (KR)
Title: Stereo audio broadcasting system for optical catv
Inventor: OK YOUNG-MI
IPC: H04N7/22
Filed: 1993-11-19
Granted: 1996-05-29
Abstract: an audio signal dividing means 2 for dividing analog/digital audio signals of plural channels into two channels; an audio decoding/coding means 4 for decoding/coding the audio signals from the audio signal dividing means 2 and a demultiplexed signal; an audio multiplexing means 8 for outputting DS3 audio multiplexed data to an optical transmitter 13 by a sync clock from a sync clock generator 14; an audio demultiplexing means 9 for demultiplexing the audio multiplexed data into audio coded data of plural channels in order to monitor the transmission state; an alarm collecting means 10; a monitor channel selecting means 11; an audio level displaying means 3 for receiving the multi-channel analog audio signals from the audio coding/decoding means 6 and displaying the level of the audio signal; and a sync clock selecting and dividing means 12.
Patent KR-970011060-B1 (KR)
Title: Complementary charging method for battery of notebook computer
Inventor: KIM YONG-KWAN
IPC: H02J7/00
Filed: 1993-12-02
Granted: 1997-07-05
Abstract: A method for charging a battery of a notebook computer is disclosed. First, the notebook computer is initialized when an adaptor power is inputted. And then, the states of a switch, a battery, an adaptor is searched. Thereafter, a charging condition of the battery is searched and, in case that it is required to charge the battery, a battery charging mode is searched. The charging operation is processed according to the result of the charging mode. In case that the charging is required and a battery full flag is set, a resting time is searched. A supplement charging end flag is searched after the resting time. The supplement charging is processed according to the result of the supplement charging end flag search. After the end of the supplement charging, the supplement end flag is set.