baber/WOPTO huggingface dataset:
Patent KR-20000051417-A (KR)
Inventor: KIM SEON GEE
IPC: F24C15/00
Filed: 1999-01-22
Abstract: PURPOSE: A microwave oven with hand drier is provided, by which moisture on hand is conveniently removed in the process of working in a kitchen. CONSTITUTION: A microwave oven with hand drier includes a body in which a cooking chamber and a chamber for element parts are provided and a manipulating panel mounted on a front face of the chamber for element parts. The microwave oven is characterized by comprising a casing for drier(11) mounted in the body, which has openings(7) for discharging heat air; a heater(13) accommodated in the casing for drier(11); and a fan(15) accommodated in the casing for drier(11) to blow out heat air generated from the heater(13).
Patent KR-20000055016-A (KR)
Inventor: SEO MOON HO
IPC: F24H3/06
Filed: 1999-02-02
Abstract: PURPOSE: A safety device of a gas valve is provided to improve the confidence and the safety of a gas heater by controlling the switch of a switching transistor for deciding to open or close after comparing and detecting an output signal of a firing transformer, flame detection signal, and overcrowding sensing signal of a micom. CONSTITUTION: A safety device of a gas valve comprises : a flame detection part(24) to compare an output signal of a firing transformer, flame detection signal, and overcrowding sensing signal of a micom with the standard signal and to output several comparing signals ; a micom(22) to supply various kinds of controlling signal to the around devices and to control the system on the whole ; a driving part(21) to open and close a gas valve by driving several relays(RY2)(RY3) as several comparing signals of a flame detector(24) and a controlling signal of a micom(22). And a flame detection part(24) consists of the first comparing part(25) comparing an output signal of a firing transformer and flame detection signal with the standard signal and outputting the first comparing signal, a transistor for the first signal reversal(26), a transistor for the second signal reversal(27) reversing an overcrowding detecting signal of a micom(22), and the second comparing part(28) comparing a reversal signal of a transistor(27) with the inner standard signal and outputting the second comparing signal. And a driving part consist of a buffer(23) amplifying a controlling signal of a micom(22), a switching transistor(Q2) supplying the driving power source(12V) to several relays(RY2)(RY3), and a gas valve opened and closed as driving of relays(RY2)(RY3).
Patent KR-19990077506-A (KR)
Title: 개선된게이트유전체를위한Ｓｉ(111)상의초박결정실리콘질화물제조공정
IPC: H01L29/51
Filed: 1999-02-27
Abstract: 반도체 장치 및 이 장치를 만드는 방법.  제1 실시예에 따른 장치는 실리콘(111) 표면을 제공하고, 표면 상에 결정 실리콘 질화물의 유전체층을 형성하고 실리콘 질화물의 유전체층 상에 전극층을 형성함으로써 제조된다.  실리콘(111) 표면은 클리닝되어 원자적으로 평탄해진다.  약 850℃ 내지 1000℃ 온도에서 약 1x10 -7 내지 약 1x10 -5 Torr의 압력으로 암모니아 분위기 내에 표면을 위치시킴으로써 결정 실리콘 질화물의 유전체층이 형성된다.  전극층은 대량 도핑된 실리콘이다.  제2 실시예에 따르면, 약 2 모노층의 두께를 갖는 결정 실리콘 질화물의 제1 유전체층이 위에 형성된 실리콘(111) 표면이 제공된다.  실리콘 질화물과 호환가능하고 실리콘 질화물보다 높은 유전율을 갖는 제2 유전체층이 제1 유전체층 상에 형성되고 전극층은 제2 유전체층 상에 형성된다.  약 2 모노층의 두께를 갖는 실리콘 질화물의 제3 유전체층이 제2 유전체층 및 전극층 사이에 형성될 수 있다.  제2 유전체층은 바람직하게 탄탈륨 5산화물, 티타늄 2산화물 및 페로브스카이트(perovskite) 재료로 이루어진 클래스로부터 취해진다.  양 실리콘 질화물층은 제1 실시예에서와 같이 형성될 수 있다.  전극층은 바람직하게 대량 도핑된 실리콘이다.
Patent KR-20000061095-A (KR)
Inventor: LEE JIN HO
IPC: H04W40/18
Filed: 1999-03-23
Abstract: PURPOSE: An interactive active/standby duplex apparatus and a method in a mobile communication exchange is provided to enhance a use efficiency of a system and decrease an implementation cost of the system by implementing the duplex apparatus having the N-K number of standby upper processor per the N-number of active upper processor. CONSTITUTION: A side top level processors(100) performs an active/standby switching operation to be switched as a standby state. The first DRAM(101) stores an operation data generated during an operation of a system. The first data buffer(102) is activated/inactivated according to an interface activation/inactivation control signal output from the first buffer control unit(110) for performing a data interface operation between the first DRAM(101) and a plurality of active/standby upper processors. The second data buffer(103) is activated/inactivated according to the interface activation/inactivation control signal output from the first buffer control unit(110) for performing a data interface operation between the first DRAM(101) and the first data buffer(102). The first address buffer(104) is activated/inactivated according to an interface activation/inactivation control signal output from the first buffer control unit(110) for performing a data interface operation between the first DRAM(101) and a plurality of active/standby upper processors. The second address buffer(105) is activated/inactivated according to the interface activation/inactivation control signal output from the first buffer control unit(110) for performing a data interface operation between the first DRAM(101) and the first address buffer(104).
Patent KR-20000066378-A (KR)
Inventor: LEE TAE GEUN
IPC: H01J29/07
Filed: 1999-04-16
Abstract: PURPOSE: A shadow mask for a color CRT is provided to accomplish an improved luminance while maintaining color purity characteristic at a screen. CONSTITUTION: A shadow mask(70) has a plurality of elliptical openings(70a). The openings have two pairs of opening facing with each other from a predetermined opening as a base. A minor axis is a direction of a pair of openings positioned in a shortest distance from a reference opening. A major axis is a direction of a pair of openings positioned in a longest distance from the reference opening. Thus, a shadow mask having an improved transmittance while maintaining minimum distance between openings can be obtained.
Patent KR-20000066560-A (KR)
Inventor: LEE HAE UK
IPC: F02D41/30
Filed: 1999-04-19
Abstract: PURPOSE: A method is provided to reduce smoke in no-load operation mode or a sudden acceleration or deceleration mode while eliminating the necessity of re-drawing an overall fuel map for determination of no-load operation or sudden acceleration or deceleration mode. CONSTITUTION: A method comprises the steps of judging a normal fuel map by judging the current engine rpm state; judging a normal fuel map by judging a neutral position of a gear, an opening degree of an accelerating pedal and a vehicle speed; and turning a boost pressure compensation system switch off so as to reduce an amount of fuel, if the fuel map is not judged as normal. In drawing up a fuel amount map, no-operation mode or sudden acceleration or deceleration mode is judged considering the whole situation of an engine rpm, travel state and opening degree of an accelerator pedal.
Patent KR-20000067078-A (KR)
Inventor: KIM DONG SUK
IPC: F24C3/14
Filed: 1999-04-23
Abstract: PURPOSE: An adapter for a butane container is provided to eliminate a danger of accident due to leakage of butane gas by making a dome type butane container combined accurately. CONSTITUTION: Airtightness between a nozzle and an eruption hole via an O ring is released and the gas filled in a high pressure butane gas container tends to be discharged outside via a nozzle hole of the eruption hole. The tendency of the butane is controlled by another O ring between the ceiling face of a settlement groove of a cam and the upper face of the eruption hole. Thus, butane is supplied to a gas inducement hole of a connection body(1) via a gas inlet hole and a separately combined groove(22) of a pressurizing unit(2) having tapered outer lower portion. The pressurizing unit is inserted via the nozzle hole and a nozzle in the nozzle hole is pressurized without applying a damage on the O ring sealing the nozzle and the eruption hole.
Patent KR-19990088022-A (KR)
Title: 멜라민촉매를사용하여입방체질화붕소를제조하는방법
IPC: B01J31/02
Filed: 1999-05-03
Abstract: 본 발명은 고압/고온 장치(HP/HT)에서 6각형 질화붕소(HBN) 입자를 입방체 질화붕소(CBN)로 전환시키는 개선된 방법에 관한 것이다.  보다 상세하게, 멜라민 촉매를 사용하여 작동 압력 및 온도 뿐만 아니라 촉매 가격을 모두 저하시킬 수 있다.
Patent KR-19990068403-A (KR)
Title: 컬링부압착장치가장착된종이용기성형장치
IPC: B31B33/00
Filed: 1999-05-17
Abstract: 본 발명은 컬링부 압착장치가 장착된 종이용기 성형장치에 관한 것으로서, 더욱 상세하게는 종이용기를 성형하는 종이용기 성형장치의 일측에 종이용기의 컬링부를 압착하여 납작하게 하는 컬링부 압착장치를 설치함으로서, 상면에 뚜껑지가 부착되는 납작컬링부를 구비한 종이용기를 한 대의 종이용기 성형장치에서 제작 성형할 수 있도록 하기 위한 것이다. 
     이를 위하여 본 발명은, 다수매의 옆지(2)가 적치되는 옆지적치대(7)를 구비하고, 그 일측에는 옆지적치대(7)에 적치된 옆지(2)를 수평이송시키는 옆지이송장치(8)가 왕복 이동가능하게 설치되며, 이 옆지이송장치(8)의 말단부에는 옆지이송장치(8)를 통해 공급된 옆지(2)를 원쁠대관 형태로 감으면서 옆지(2)의 측면을 부착시키는 옆지성형 봉합구(9)를 구비한 옆지성형장치(10)와, 보빈에 감겨진 밑지원단(11)을 원쁠대관 형태로 성형된 옆지(2)의 하단에 삽입되도록 원형으로 재단한 뒤에 외주연을 수직으로 절곡시키는 밑지재단장치(12)와, 다수개의 안치구멍이 일정각도로 배열 형성되며 클릭식으로 회전하는 제1회전 테이블(13)의 안치구멍으로 삽입된 원쁠대관 형태로 성형된 옆지(2)의 하단으로 상기 밑지재단장치(12)에서 성형된 밑지(4)를 삽입시키는 밑지삽입장치(14)와, 상기 밑지삽입장치(14)의 측방에 위치하면서 다수개의 안치구멍이 일정각도로 배열 형성되며 클릭식으로 회전하는 제2회전 테이블(15)의 안치구멍에 상기 밑지삽입장치(14)에서 옆지(2)의 하단에 밑지(4)가 삽입된 반제품형태의 종이용기(1)가 삽입된 상태에서 클릭식으로 회전 이동하면서 반제품 형태의 종이용기(1)의 하단부를 널링작업으로 압착 부착시키며 옆지(2)의 상단부를 컬링가공하는 널링 및 컬링부 성형장치(16)로 이루어지는 종이용기 성형장치에 있어서, 상기 밑지삽입장치(14)의 전방에는 컬링부 압착장치(17)를 설치하기 위한 틀체(18)가 설치되고, 이 틀체(18)의 중앙부에는 모터(20)가 상향 설치되는 모터설치대(19)가 수평설치되며, 이 모터설치대(19)에 상향 설치된 모터(20)의 모터축(21)에는 다수개의 종이용기착탈구(22)가 일정각도로 배열 설치된 제3회전 테이블(23)이 클릭식으로 회전 자재토록 설치되고, 상기 종이용기착탈구(22)는 제3회전 테이블(23)의 하측으로 하향 설치되는 눌림부(26)의 중앙 상측에 눌림봉(25)이 상향 돌출되며, 제3회전 테이블(23)의 상측에 고정된 고정판과 볼트로서 연결 고정된 종이용기홀더(24)가 상광하협 형태로 형성되고, 상기 모터설치대(19)의 전방 하측에는 양측에 캠(28)이 설치된 회전축(27)이 구동모터(M)로 부터 동력을 전달받아  회전하도록 설치되며, 상기 회전축(27)의 상측에는 캠(28)의 회전에 의해 승하강되는 승하강대(29)가 설치되고, 이 승하강대(29)의 상부에는 상기 종이용기착탈구(22)와 대응하는 위치에 종이용기(1)의 컬링부(3) 하단을 지지하는 누름구(31)를 구비한 하부압착구(30)가 설치되며, 상기 회전축(27)의 일측 단부에는 상기 캠(28)의 회동에 의해 간헐적으로 승하강하는 슬라이더(32)가 수직 설치되고, 이 슬라이더(32)의 상단부에는 종이용기착탈구(22)의 눌림봉(25)을 눌러주는 누름구(33)가 하향 설치된 것을 특징으로 한다.
Patent KR-20000074064-A (KR)
Inventor: AHN HAN YEOL
IPC: H04L12/16
Filed: 1999-05-18
Abstract: PURPOSE: A method for supplying a chatting service inviting the other person, is provided to invite the other person while performing chatting through a communication equipment of the other person. The method is useful when an emergent interaction is needed. CONSTITUTION: A user connected to a chatting server, which can invite a person, invites a person. The chatting server decides whether the invited person is connected(201). If so, the chatting server invites the person to a chatting room in an existing system(202). If the invited person is not connected, a registered communication equipment number of the invited person is confirmed(203). Then information necessary for invitation, such as the name of the chatting server, the name of the chatting room, the password of the chatting room and the communication equipment number of the invited person, is transmitted to a short message calling module(204). The short message calling module converts the transmitted information into data for comprehension of a short message service(SMS) server, and transmits the converted information to the SMS server(206). The SMS server delivers an inviting message to the invited person through an SMS center(207).
Patent KR-20000074550-A (KR)
Inventor: KWAK DONG YEONG
IPC: G09F9/00
Filed: 1999-05-21
Abstract: PURPOSE: An LCD(Liquid Crystal Display) and a fabricating method thereof are provided to strengthen the TAB adhesive force of LCD having the high aperture ratio on which an organic protection film is applied. CONSTITUTION: An LCD(Liquid Crystal Display) comprises a gate pad(16), a gate insulating film, hole(18), a semiconductor pattern(32) and a transparent electrode(20). The gate pad(16) is formed on the bottom glass with a gate line of a picture display. After the gate insulating film is covered on the gate pad(16), the hole(18) is patterned on the position of the gate pad(16). The semiconductor pattern(32) is formed on the gate insulating film of the position of the gate pad(16) are prevents from the transient etching of the gate insulating film contacted the electrode pad. The transparent electrode(20) protects for the electrode pad.
Patent KR-20000074666-A (KR)
Inventor: LEE JUN MIN
IPC: F16H61/02
Filed: 1999-05-25
Abstract: PURPOSE: A method for controlling sudden brake force in a continuously variable transmission vehicle is provided to enhance brake force by highly feeding current to a clutch in case of more than a predetermined deceleration for conducting the function of an engine brake. CONSTITUTION: A continuously variable transmission(10) comprises a primary and a secondary pulley(21,22) having variable inner diameters, a belt connecting two pulleys, a DC motor(31) adjusting the relative separation of a variable pulley(25), a torque cam(40) and a spring. The torque cam and the spring change the inner diameter of the secondary pulley corresponding to the change of the inner diameter of the primary pulley. The control system of the continuously variable transmission contains a sensor for a deceleration value in case of a sudden brake. An electromagnetic powder clutch controller controls current to an electromagnetic powder clutch(13) according to the deceleration value. The electromagnetic power clutch controller contains a logic circuit for converting a current value fed to the electromagnetic powder clutch.
Patent KR-20000074804-A (KR)
Inventor: YOON JIN HYEON
IPC: H01L23/10
Filed: 1999-05-26
Abstract: PURPOSE: A method for manufacturing a ball grid array package is provided to omit a cleaning process and a reflow process, by locally forming a ball only on a connection pad to which the ball is adhered, in a wire bonding method. CONSTITUTION: A printed circuit board is prepared which has a circuit pattern on its upper surface and a connection pad electrically connected to the circuit pattern on its lower surface. And, a semiconductor chip having a plurality of bonding pads is prepared. The semiconductor chip is mounted on the printed circuit board. The bonding pad is electrically connected to the circuit pattern. A package body is formed with a resin encapsulating material to encapsulate the semiconductor chip and parts electrically connected to the semiconductor chip. A ball bonding is performed by using a conductive metal wire as a capillary to the connection pad of the printed circuit board, and a neck portion of the ball is cut.
Patent KR-19990068533-A (KR)
Title: 기공특성이다른파이프형태의바의내부에지지벽체가있는세라믹필터의제조방법
Filed: 1999-05-31
Abstract: 본 발명은 파이프 형태의 바(bar)와 두께방향으로 기공경이 다르고 내부에 두께가 일정한 세라믹 벽체를 압출·성형법을 이용하여 제조하고 이를 이용하여 도 4와 같은 형태의 다공성 세라믹 필터가 되도록 위와 아래에 세라믹 기판을 붙여 제조하여 두 기판에 금속 용탕을 도포한 것이다. 
     이와 같은 공정을 통하여 제조된 다공성 세라믹 필터는 바의 간격을 임으로 줄여 바의 개수를 늘림으로서 비표면적이 증가되는 것은 물론, 얇은 세라믹 필터의 외벽이 부득이하게 파손이 발생할 경우 그 내벽 즉, 지지대가 그 역할을 대신 함으로서 다공성 세라믹 필터의 수명을 연장하여 경제성을 부가하였고 금속 용탕을 아래·위 덮개에 도포 함으로서 인성의 증가는 물론 차후에 계속되는 캔과의 접합 작업 시에 간단한 방법에 의한 작업능률의 향상을 꾀하여 경제적인 효과를 꾀하였다. 
     또 다공성 세라믹 필터를 제조 시, 두께방향으로 조공제를 부위에 따라 밀도를 다르게 분포시킴에 의해 다공성 벽의 기공특성을 그 벽두께 방향으로 변화시켜 표면여과의 특성이 보다 우수한 세라믹 필터를 제조하는 방법을 제공하기 위한 것이다. 
     본 발명의 방법에 의해 제조된 세라믹 필터는 도시 쓰레기 소각장, 석탄 화력 발전소, 석탄 가스화 복합 발전소, 경유 매연 제거 장치, 수처리용 필터에 사용할 수 있으며 그 외에 이를 응용하여 각 산업 공정의 열교환기, 기체 및 유체 등의 분리용 필터 또는 그 지지체, 촉매담체 등에 사용이 가능하다.
Patent KR-20010001214-A (KR)
Inventor: HAN YOUNG TAE
IPC: A61K38/10
Filed: 1999-06-02
Abstract: PURPOSE: A synthetic peptide is provided, which interferes or inhibits signal delivery in cells by binding with proteins like as src-phosphorylase, more desirably, can be used as an effective pharmaceutical composition for cancer-treating and immuno-suppressing by binding with palmitic acid. CONSTITUTION: A process for the preparation of synthetic peptide controlling signal delivery in cells comprises: Nα-deprotectioning by pouring 55% piperidine-added N-methylprollidone to p-benzyloxybenzylalcohol-resin containing Fmoc-Asp-OH and Fmoc-Arg-OH; activating Fmoc-AA-OH dissolved in N-methylprollidone using diisopropylcarbodiimide and 1-hydroxybenzotriazole, and binding for 1.5hrs; washing with N-ethylmorphorline dissolved in N-methylpyrollidone in the concentration of 5%; repeating activating and binding stage; protecting amino groups that do not participate in a reaction using acetic anhydride and diisopropylethylamine dissolved in N-methylpyrollidone; eliminating peptide probe for analysis by trifluoroacetolytic cleavage after synthesizing peptides bound to resin; and confirming amino acid sequence of the peptide using an HPLC and a mass analyser.
Patent KR-20010001286-A (KR)
Inventor: CHO HUI BOK
IPC: H04B7/155
Filed: 1999-06-03
Abstract: PURPOSE: A method for testing the setup and release of a general call in an RNC(Radio Network Controller) of IMT-2000 is provided to load a base station simulator and an MSC(Mobile Switching Center) simulator in a main processor inside the RNC, without physically linking the RNC with the BS and MSC, so that time and costs for the testing can be reduced. CONSTITUTION: An originating message generated in a base station simulator is transmitted to an RNC(Radio Network Controller), corresponding to an instruction input for setting up a general call including a virtual originating terminal telephone number and a virtual incoming terminal telephone number. An originating call is set up through message interface among the RNC and an MSC(Mobile Switching Center) simulator, and the base station simulator, corresponding to the generated originating message. Channels are allocated to the virtual originating terminal. An incoming call is set up through message interface among the RNC, the MSC simulator, and the base station simulator, in reply to an incoming call setup message provided from the MSC simulator. An incoming ring, a ring-back tone and an originating ring are provided to the virtual originating terminal and the virtual incoming terminal through message interface among the base station simulator, the RNC, and the MSC simulator. Accordingly, the virtual originating terminal and the virtual incoming terminal are connected in a general call speech state. The above steps for setting up a general call are monitored.
Patent KR-20010001647-A (KR)
Inventor: KIM YONG TAEK
IPC: F24F13/00
Filed: 1999-06-07
Abstract: PURPOSE: A structure is provided to reduce manufacturing procedures and improve strength while allowing the air inlet opening and the suction grille to be coupled in an easy manner. CONSTITUTION: A structure comprises an upper panel having a front surface and side surfaces with an air outlet opening consisting of a front air outlet opening(11a) and a side air outlet opening(11b), respectively, and an outlet grille(13) inserted into the air outlet opening; a front panel(15) installed at the lower portion of the cabinet and which has side air inlet opening(20) extended integrally from the front panel so as to take the indoor air at both sides of the air conditioner. The side air inlet opening is mounted with a suction grille(23). The structure further comprises a plurality of support frames(21) installed in horizontal direction to improve strength of the side air inlet opening. Each of the side air inlet opening has a screw groove formed at both ends of the side air inlet opening so as to be easily coupled to the suction grille.
Patent KR-20010008525-A (KR)
Inventor: KIM JI HYEONG
IPC: H01L21/336
Filed: 1999-07-01
Abstract: PURPOSE: A method for manufacturing a contact electrode of a semiconductor device is provided to increase contact resistance, by performing a heat treatment after a barrier metal layer is formed in a contact hole and boron ions are implanted only into a p+ junction region. CONSTITUTION: After a plurality of semiconductor devices including a p-channel metal oxide semiconductor(PMOS) transistor are formed in an active region of a semiconductor substrate(10), an interlayer dielectric is formed on the substrate. A contact hole for guaranteeing a region for a contact electrode is formed in the interlayer dielectric. A barrier metal layer(22) is formed in the interlayer dielectric having the contact hole. After only the PMOS transistor is opened, p+ impurity ions are implanted into a source/drain junction region of the PMOS transistor. A thermal process is performed regarding the resultant structure. The contact electrode is formed by filling a metal layer in the contact hole.
Patent KR-20010009457-A (KR)
Inventor: CHOI JONG UK
IPC: A23L7/109
Filed: 1999-07-09
Abstract: PURPOSE: Provided is a preparation method of noodle using Poria cocos Fr. Wolf that has diuretic effect, anti-cancer ingredient. CONSTITUTION: The noodle using Poria cocos Fr. Wolf is prepared by (i) mixing 95 wt.% of wheat floor with 5 wt.% of Poria cocos Fr. Wolf being pulverized below 60 mesh; (ii) adding thereto 2-8 wt.% of salt, based on the weight of above admixture; (iii) kneading the admixture for 15 to 20 min, and then ageing in a refrigerator (5-6deg.C); (iv) after ageing, cut the dough to be 1 mm in thickness, and 2 mm in width; (v) hot-air drying the noodle for 12 hrs. at the temperature range of 30 to 35deg.C under 70 % humidity.
Patent KR-20010011676-A (KR)
Inventor: JUNG GU JIN
IPC: C22C9/04
Filed: 1999-07-29
Abstract: PURPOSE: Provided are an alloy for machine parts and process for producing the same, in which the alloy is excellent in abrasion resistance and durability. Also processing is simply because of replacing lead with manganese. CONSTITUTION: The alloy contains 42-58wt% of Cu, 18-30wt% of Zn, 7-25wt% of Ni and 4-10wt% of Mn. The alloy is obtained by the steps of: i) dissolving Cu, Zn, Ni and Mn; ii) molding the solution into a fixed shape; iii) rolling the molding article, followed by heating it for 1-2hrs at 680-720deg.C; iv) rolling and heating it for 0.8-1.2hrs at 680-720deg.C; and then v) stretching it by extruding.
Patent KR-20000017365-A (KR)
Title: Detection circuit
Inventor: ABE MASAYOSHI
IPC: H03D1/18
Filed: 1999-08-18
Abstract: PURPOSE: A circuit is provided to suppress the change of detection characteristic and decrease the size of the circuit by form the detection circuit using GaAs semiconductor. CONSTITUTION: The circuit comprises a field effect transistor, a gate bias circuit(101), a capacitor, a load capacitor and a load resistor. A high frequency signal is applied to the gate of the field effect transistor. The gate bias circuit supplies a gate bias voltage to the field effect transistor. The capacitor is connected between the drain of field effect transistor and the ground. The load capacitor and the load resistor is connected in series between the source of field effect transistor and the ground. The detection circuit outputs the detection signal according to envelop of the high frequency input signal form the source of field effect transistor.
Patent KR-20000017468-A (KR)
Inventor: ARAKI YOSHIHIRO
IPC: H03L7/099
Filed: 1999-08-23
Abstract: PURPOSE: A control method of a PLL(Phase-Locked Loop) circuit is provided to automatically return to a steady state when an oscillation operation stops. CONSTITUTION: The control method circuit comprises the steps of: detecting if an oscillation of a voltage control oscillator stops in which the oscillator is a ring oscillator composed of a plurality of differential amplifiers coupled in a ring type; generating an oscillation control signal for automatically oscillating the voltage control oscillator on the basis of the detected signal; automatically returning the voltage control oscillator to a normal state of an oscillation by using the generated signal.