baber/WOPTO huggingface dataset:
Patent KR-20000055796-A (KR)
Inventor: NOH SEONG CHUN
IPC: H04M11/06
Filed: 1999-02-10
Abstract: PURPOSE: A splitter of an asymmetric digital subscriber line (ADSL) system is provided to separate voice data signals from digital signals when high band-width information is transmitted to households or small-sized businesses through existing telephone lines. CONSTITUTION: An asymmetric digital subscriber line (ADSL) system comprises a network connector, many ADSL transceiver unit and central office ends (ATU-Cs), splitters, an ADSL transceiver unit and a remote terminal end (ATU-R), and a premises distribution network (PDN). The ATU-Cs changes ADSL signals into many types appropriate for application fields. One of the splitters is connected to the ATU-Cs and a public switched telephone network. The other splitter is connected to a phone and the ATU-R through a loop. The ATU-R changes the ADSL signals into the types appropriate for application fields. The PDN connects the ATU-R with a service module. The splitter connected to the phone and the ATU-R has a chalk coil. The chalk coil intercepts a noise signal incoming to an input terminal. The splitter has a tree-step filter winding coils on inductors (L2,L2A) between capacitors (C1,C2) connected with a back end of the chalk coil in parallel. The filter winds coils on inductors (L4,L4A) between capacitors (C2,C3), and winds coils on inductors (L6,L6A) between capacitors (C3,C4).
Patent KR-20000056089-A (KR)
Inventor: KANG TAE WOOK
IPC: B21K27/00
Filed: 1999-02-12
Abstract: PURPOSE: A material feeding apparatus for hot press system is provided to achieve an improved work efficiency while arranging an additional material feeding apparatus and eliminating the necessity of waiting for the molded material to reach a normal temperature. CONSTITUTION: An apparatus comprises a base(10), a lower frame(12) installed onto the base, a lower center frame(14) jointed onto the lower frame, a lower ram(20) installed to be vertically movable to the lower center frame, a lower punch(22) fixed to an upper portion of the lower ram and which moves vertically, an adiabatic chamber unit(100) installed on the lower center frame, an upper center frame installed on the adiabatic chamber unit to face the lower center frame, an upper ram(34) installed to be vertically movable to the upper center frame, an upper punch(32) fixed to the upper ram so as to produce a molded body, and a material feeding device(104) installed at a portion of the adiabatic chamber unit for supply of a material to be molded.
Patent KR-20000059443-A (KR)
Inventor: AHN SEONG UK
IPC: H04M3/42
Filed: 1999-03-04
Abstract: PURPOSE: A method for restricting call originations in a mobile switching center(MSC) is provided to perform call originations with only special service codes and restriction digits, and to set up calls with the restriction digits when subscribers originate with other digits except the special service codes and the restriction digits. CONSTITUTION: A method for restricting call originations in a mobile switching center(MSC) comprises the steps of: if a subscriber originates a call, making the MSC translate a first number for an originating number and a receiving number; if a response is generated from the translation, requesting information on the originating subscriber to a home location register(HLR) to receive a response; if a dial limit presents an Only Home service, deciding whether the receiving number is a special service code; if not, translating the number again; if a response for the restriction digits is generated, receiving the restriction digits only; and if the originating subscriber is not registered in the Only Home service, receiving a call with an existing number, and if the number is a special service code, receiving the call with the special service code.
Patent KR-19990045990-A (KR)
Title: 형광등의전자식안정기회로
Filed: 1999-03-06
Abstract: 본 발명은 외부 상용전원(AC 220V 50 - 60Hz)을 입력받아 전파정류하는 정류부와, 형광등 방전에 필요한 고전압으로 배전압 시키는 배전압 정류부와, 두 개의 콘덴서와 두 개의 다이오드를 각기 직렬접속하여 그들의 중간 접속점을 공통단자로 형광등의 일측 필라멘트에 접속하여 형광등의 저전압 방전경로를 형성하는 방전 안정화부와, 전원의 양단에 저항과 콘덴서를 직렬 접속하고 그 중간 접속점을 다이악과 다이오드를 통해서 각기 시작 및 방전전류를 발생하는 트리거부와, 두 개의 스위칭 트랜지스터를 직렬 접속하고, 고주파 스위칭 트랜스를 이용하여 상기 트리거부의 제어에 의해 상기 두 개의 스위칭 트랜지스터를 제어하여 고주파 발진하는 스위칭부와, 그 스위칭부의 고주파 발진출력을 고주파 쵸크 코일을 통해서 형광등의 필라멘트에 공급하여 형광등을 구동하는 구동부와, 상기 스위칭 트랜지스터의 사이에 연결된 부 온도계수소자(RF)를 포함하여 구성된다. 이와같이 구성된 본 발명은 직류전압을 발진 코일을 이용해 발진 된 파형을 고주파 트랜스를 이용하여 초고주파를 생성해 형광등을 방전시킴으로써, 고 역률화를 실현하여 최고의 룩스를 제공하고, 수명 연장의 효과가 있다.
Patent KR-19990077747-A (KR)
Title: 병렬 처리 장치
IPC: G06F15/80
Filed: 1999-03-10
Abstract: 직렬 데이터가 병렬로 변환될 때 전력 소비를 줄일 수 있고, 동시에 동작 속도를 개선할 수 있는 병렬 처리 장치가 제공된다. 
     직렬 데이터를 병렬 데이터로 변환하기 위한 데이터 입력 레지스터가 나누어지고 복수의 블록으로된 데이터 입력 수단이 구성되며, 데이터 입력 수단내의 포인터 데이터의 입출력 시간을 검출하기 위한 검출 회로가 제공되고, 검출 회로에 의해 검출된 포인터 데이터의 입력 시간에서 출력 시간까지의 주기 동안만 직렬 데이터 입력 라인이 제공된다.
Patent KR-20000060714-A (KR)
Inventor: YANG TAE SEOK
IPC: H04N7/20
Filed: 1999-03-18
Abstract: PURPOSE: An interface device is provided to connect a digital VCR and a satellite broadcast receiver easily with a simple cable by changing modulation method according to the kinds of broadcast medium. CONSTITUTION: A digital video cassette recorder(100) outputs a digital play-back signal for a playing back screen. A quadrature phase shift keying(QPSK) modulator(200) modulates the digital play-back signal into receivable data to output the data through a cable. A satellite broadcast receiver(300) receives the modulated signal to demodulate the signal to an original signal, and plays back a required screen by the demodulated signal.
Patent KR-20000061615-A (KR)
Inventor: KIM SI DEOK
IPC: H04B7/216
Filed: 1999-03-29
Abstract: PURPOSE: A method for preventing a call disconnection when generating a link fail in a CDMA system is provided to improve a complete ratio and simultaneously improve a system performance by preventing a disconnection of a call which is progressed to a link in which an error is occurred when the error is occurred in the link of a digital mobile communication system. CONSTITUTION: If a call data transmitted from a switch is inputted to a vocoder of a control station, the first network management processor controls routers located in the control station and transmits the number of normally current usable links(S100). The first call processor receives the number of links transmitted from the first network management processor and designates an identification code as to whether any links is used among usable links with reference to loads of links(S200). The first call processor generates an object address and transmits the generated object address to corresponding routers(S300). The first call processor designates paths for transmitting only packet data to be identical to the identification code through corresponding routers, detects an error state of a link in which call data are periodically transmitted, and controls corresponding routers when an error is occurred in the link to switch call data to a normal link(S400).
Patent KR-19990082881-A (KR)
IPC: C08F10/00
Filed: 1999-04-02
Abstract: 본 발명은 고온 용액 공정에서 알파 올레핀과 에틸렌의 단일- 및 공중합시 활성을 상당량 증가시키는 신규의 지글러-나타 촉매 제조방법을 제공한다.  본 방법은 촉매 활성을 약 60% 정도로 상당량 증가시키는 촉매 성분의 혼합 및 가열을 수반한다.
Patent KR-19990046647-A (KR)
Filed: 1999-04-06
Abstract: 본 발명은 목적은 보트가 반으로 절첩되거나 분해와 조립되게 됨으로서 승용차나 소형차로 운반이 가능하며 보관이 용이하고, 내구성이 강하게 되면서 안전성을 가진 절첩 및 분해조립식 보트를 제공하기 위하여 본 발명은, 중간 부분이 분리되면서 선두부와 선미부로 형성된 보트에 있어서, 상기 선두부의 후단프레임과 선미부의 선단프레임의 상측에 고정되고 조립용핀의 일측단이 굽혀지면서 손잡이를 형성하게 되는 힌지와, 상기 선두부와 선미부의 각 바닥면으로, 선두부의 선단에서부터 선미부의 끝까지 이어지는 관체와, 상기 관체 내부로 삽입되고 일측은 선두부의 전방 상측 고정판에 고정되며 타측단은 나사부가 있는 고정구가 고정되어 선미부로 돌출되면서 나비너트로 체결되는 와이어로 구성된 것을 특징으로 한다.
Patent KR-19990083253-A (KR)
IPC: C07D405/14
Filed: 1999-04-16
Abstract: 본 발명은 결정 내부에 2 내지 15 중량 %의 α형 트리스-(2,3-에폭시프로필)-이소시아뉴레이트를 함유하는 β형 트리스-(2,3-에폭시프로필)-이소시아뉴레이트 결정에 관한 것이다.
Patent KR-20000067003-A (KR)
Inventor: AHN JEONG HONG
IPC: H01L21/66
Filed: 1999-04-22
Abstract: PURPOSE: A scan test device of an asynchronous system is provided to improve a system capacity by applying a scan test applied to a synchronous system to an asynchronous system. CONSTITUTION: A scan test device of an asynchronous system comprises a plurality combination block(411-413), a plurality of scan flipflop(421-424), and a control portion. The combination block is operated according to a current input value and an initial input value. The scan flipflop shifts a test vector at a data shift mode and outputs combination block data of a previous combination block to the next combination block at data capture mode. The control portion outputs each control signal for controlling the flipflop at a scan test.
Patent KR-20000067388-A (KR)
Inventor: YANG NAM YEOL
IPC: H01J9/14
Filed: 1999-04-28
Abstract: PURPOSE: A working pattern alignment apparatus of a shadow mask is provided to effectively align the upper and lower glasses by fixing the upper glass of the working pattern for the shadow mask, confirming the alignment state of the upper glass to the lower glass with a camera and moving the position of the lower shadow mask. CONSTITUTION: Two working pattern glasses for a shadow mask are aligned as stacked with one on the other in a chamber(60). The chamber(60) is supported by a frame. The lower glass is settled on a lower absorbing plate(61) which is placed on the bottom of the chamber by a plurality of thrust bearings. The lower absorbing plate(61) is transported by a lower absorbing plate drive. The upper glass is absorbed by an upper absorbing plate(62) which moves up and down above the upper glass. A plurality of cameras confirms alignment marks inscribed in the glasses. The upper absorbing plate(61) is transported by an upper absorbing drive(70). An ultraviolet radiation lamp radiates ultraviolet ray to bind the working pattern glasses.
Patent KR-20000073666-A (KR)
Inventor: KIM YEONG GAP
IPC: B60K31/00
Filed: 1999-05-13
Abstract: PURPOSE: A method for controlling auto cruise for a vehicle is provided to prevent car accident by improving the efficiency of braking force and the endurance of a transmission and a brake. CONSTITUTION: A method for controlling auto cruise for a vehicle includes the steps of receiving vehicle operating state sensing signal(S100), determining whether a brake signal is turned on(S110), determining whether an auto cruise control setting condition is satisfied if the brake signal is turned on(S120), determining whether an auto cruise control release condition is input if the auto cruise control setting condition is satisfied(S130), performing an auto cruise control if the auto cruise control release condition is not satisfied(S140), determining whether the auto cruise control release condition is input during the auto cruise control(S150), releasing the auto cruise control and determining whether an auto cruise resetting request signal is input if the auto cruise control release condition is input(S160), and resetting the auto cruise and performing a normal speed of traveling if the auto cruise resetting request signal is input(S170).
Patent KR-19990088379-A (KR)
Title: 반도체기억장치
IPC: G11C11/407
Filed: 1999-05-19
Abstract: 기록 시간의 고속화를 도모하고, 안정하게 동작할 수 있는 반도체 기억 장치를 제공한다. 
     밸런스 제어 신호 PIO를 라이트 앰프(12)와 Y 스위치(YSW)간의 WI/O선 쌍(111b)에 설치된 트랜지스터에 인가하여 WI/O선 쌍(111b)을 밸런스한다.  Y 스위치(YSW) 및 기록 데이터의 전환 시에 밸런스 처리를 행함으로써, 전의 데이터를 잘못하여 기록하는 것을 방지할 수 있으며, 또한 기록 처리의 고속화를 도모할 수 있다.
Patent KR-20000074416-A (KR)
Inventor: JANG CHANG HWAN
IPC: H04N21/2381
Filed: 1999-05-20
Abstract: PURPOSE: An apparatus and method of transmitting an audio stream using a digital interface is to separately transmit a video and audio data to a digital image display device and a digital audio device connected each other through a digital interface, thereby providing a high resolution image and a high quality sound. CONSTITUTION: An apparatus for transmitting an audio stream using a digital interface comprises a separating portion(6) for separating a datastream read from a disk recording medium into a video data and an audio data, a converting portion(14) for converting the divided video and audio data into each transmission stream corresponding to each different communication protocol, and a transmitting portion for transmitting the converted transmission stream to each transmission channel having a different passage each other. In the apparatus, the transmitting portion transmits the converted video and audio transmission stream through an isochronous channel. A method of transmitting an audio stream using a digital interface comprises the steps of: separating the video and audio data read from the disk recording medium; and transmitting the divided video and audio data to the transmission channels which respectively use the different communication protocol.
Patent KR-20010003311-A (KR)
Inventor: SONG DONG HUI
IPC: D04B15/38
Filed: 1999-06-22
Abstract: PURPOSE: A guide tool of span yarn for links and links type circular knitting machinery is developed to prevent the alteration of location or yarns not to be tangled by guiding yarns in order at desired intervals while interrupting cutting off of yarns by friction. CONSTITUTION: A span yarn guiding tool for links and links type circular knitting machinery comprises a body including knitting points (24) of a first yarn (18), span yarn (20) and a second yarn (22) introduced from a ceiling part at top side of the circular knitting machinery. The body is arranged crosswise to receive span yarns and comprises a cut groove to guide the span yarns, a rotation roller (36) and a first guide (32) and a second guide tubes (34) to pass the first and second yarns through and accept them. The first and second guide tubes are formed to have desired difference of length between the first and second tubes to maintain phase difference of the first and second yarns.
Patent KR-20010003896-A (KR)
Inventor: OH IN SOOK
IPC: C07H21/00
Filed: 1999-06-25
Abstract: PURPOSE: A preparation method of nucleic acid using soybean is provided to produce germ-free nucleic acid solution that is effective in digestion, metabolism, and anti-aging. CONSTITUTION: The raw material of nucleic acid are as follows. Sterilized soybean as main material, 10 wt.% of yeast (based on the weight of soybean), 10 wt.% of lactic ferments, 10 wt.% of water, 10 wt.% of salt. Above raw materials are mixed well, cultivated for 144 hrs. at 23-40 deg.C. And then, it is aged for 4-6 months, followed by aging again for 1 year at 15 deg.C.
Patent KR-20010004681-A (KR)
Inventor: KIM JIN BAE
IPC: H01L21/31
Filed: 1999-06-29
Abstract: PURPOSE: A method for making an interfacial insulating layer of a semiconductor device is provided to make an element stabilization in a post annealing process by forming a lower interfacial insulating layer as a high-density plasma oxide layer. CONSTITUTION: A gate electrode(2) is formed on a semiconductor substrate(1). A nitride layer(5) of a predetermined thickness is formed on the whole surface. The first interfacial insulating layer(6) for planarizing an upper part of the whole surface is formed as HDP(high-density plasma) oxide layer. A contact plug connected to the semiconductor substrate through the first interfacial insulating layer is formed. A bit line(9) connected to the first contact plug(7) is formed. The second interfacial insulating layer(8) for planarizing the whole surface upper part is formed. The second contact plug(13) is formed to be connected to the first contact plug(7) through the second interfacial insulating layer(8). A storage electrode connected to the second contact plug(13) and an upper part of the storage electrode are formed. Thereby, an interfacial insulating layer used to a lower part of a plate electrode is formed of HDP oxide layer having a hydrogen, and thus a semiconductor device makes an element stabilization in a post annealing process.
Patent KR-20010005311-A (KR)
Inventor: KIM GWANG CHEOL
IPC: H04N5/445
Filed: 1999-06-30
Abstract: PURPOSE: A television having an OSD language selection display function is provided so that a user can confirm a current OSD language and select a wanted OSD language, by pressing a language key on a remote controller or front panel. CONSTITUTION: A tuner(10) tunes a high frequency broadcasting signal from an antenna. An IF amplifier(30) converts the high frequency signal into an intermediate frequency signal, and amplifies the intermediate frequency signal. An audio signal processor(30) processes an audio signal from the IF amplifier. A speaker(40) outputs the audio signal. An image signal processor(50) processes an image signal from the IF amplifier. A monitor(60) outputs the image signal from the image signal processor(50). A language data storing unit(80) stores various languages. A microcomputer(70) controls the operation of the television, and transmits language information and image information to an OSD unit(90). The OSD unit(90) outputs OSD characters to the monitor(70). Here, a language key(100) for requesting display or selection of the OSD language is provided to a remote controller or front panel. Accordingly, the user can confirm the current OSD language or select a new OSD language by pressing the language key.
Patent KR-20000052299-A (KR)
Title: Self-tensioning device for snow chains
Inventor: AIROLDI ROMOLO
IPC: B60C27/06
Filed: 1999-07-12
Abstract: PURPOSE: A self-tensioning device for snow chains is provided to easily mount snow chains and to maintain self-tensioning force continually. CONSTITUTION: A self-tensioning device for snow chains comprises: an outer element (3) to be suitable to be placed on the outer side of a wheel (1) and to be closable in a ring; an inner element to be suitable to be placed on the inner side of the wheel and to be closable in a ring; a slip protection elements (10) to joint the inner and outer elements and to create the traction on the tread; a terminal portion (7) to pass through a non-return device (5) which makes the terminal portion slide only in the chain tensioning direction and not in the opposite slackening direction; a storage block (2) to be mounted on the outer element and to contain an elastic element (21) which is able to hook, tension and retain the terminal portion.
Patent KR-20010009988-A (KR)
Inventor: SON GI SANG
IPC: C02F1/52
Filed: 1999-07-15
Abstract: PURPOSE: Provided is an apparatus for purifying underground water being erupted at construction field, which filters out sand contained in underground water thoroughly so that the apparatus can supply clean water for construction work from underground water which would otherwise be discarded. CONSTITUTION: The apparatus consists of a settling tank (10) into which a pipe for pumping underground water (11) is installed and an extended pipe (12) having several holes (12a) for draining water is inserted into the settling tank; a reservoir (10) for storing purified underground water. The settling tank and the reservoir are connected through a connection pipe (21), and one end of the connection pipe has a mesh-type filter (21a).
Patent KR-20010010978-A (KR)
Inventor: KIM DAE CHEOL
IPC: G09G1/00
Filed: 1999-07-24
Abstract: PURPOSE: A heater constant voltage circuit for a monitor is provided to improve an output characteristic and a life of the monitor by preventing that a heater voltage is changed according to a change of a video mode or a change of a brightness when changing a load and always supplying a uniform voltage to a heater. CONSTITUTION: A DC voltage driving unit(10) has a rectifying diode(D1) and a capacitor(C1) interconnected with a voltage transformer(T1) in parallel, and outputs a certain DC voltage to generate a heater voltage. A PWM signal output unit(20) outputs a PWM signal through a collector of a transistor(Q1) when transistors(Q1,Q2) are turned on. An ABL circuit unit(30) has a capacitor(C3) and a resistor(R4) interconnected with a brightness detecting transformer(T2) in parallel for outputting a change value of a heater voltage according to a change of a brightness of a CRT. A MCU(40) outputs a PWM control signal for supplying a uniform voltage to a heater according to the change value of the heater voltage inputted from the ABL circuit unit(30). An integrating circuit(50) has a resistor(R3) and a capacitor(C2) for integrating the PWM signal of the PWM signal output unit(20) and supplying a voltage to the heater.
Patent KR-20010011091-A (KR)
Inventor: CHOI CHUN GI
IPC: F28D15/02
Filed: 1999-07-26
Abstract: PURPOSE: A heat pipe having a carbon fiber wick is provided to improve the performance of the heat pipe and to produce a heat pipe product by making a production process of the heat pipe easy and securing sufficient capillary force and heat transfer force. CONSTITUTION: A pipe(10) is formed in a cylindrical shape. A carbon fiber(55) having excellent capillary and heat transfer force is equally distributed on the circumference of an inner wall of the pipe. In addition, the carbon fiber is pushed to be attached to the inner wall of the pipe by using a spiral spring(60) after tied into a bundle and inserted in a certain portion. Thereby, a wick is made up so that the heat pipe has the capillary and heat transfer force to normally act. Further, a production process is simplified without a process for making up a groove on the inner wall or a porous sinter process.
Patent KR-20010011558-A (KR)
Inventor: YU TAE WOO
IPC: A61H39/02
Filed: 1999-07-29
Abstract: PURPOSE: Guide device for specific acupuncture region of acupuncture treatment shows specific acupuncture region of acupuncture treatment corresponding to selection of user and remedial guide sentence as standstill image on TV or monitor, is enforced thought wave treatment as cyber surgical operation to control function of body without acupuncture device. CONSTITUTION: Guide device for specific acupuncture region of acupuncture treatment comprises central processing part(15) to control storage or output of data according to control signal of user; first storage part(14) to output image data according to control of central processing part(15); letter data generating part(13) to output letter data according to control of central processing part(15); RGB data generating part(17) to change data stored in first storage part(14) to image data shape according to control of central processing part(15); video signal changing part(19) to change output form of output signal of letter data generating part(13) and RGB data generating part(17).
Patent KR-19990078702-A (KR)
Title: 자동차 내부 패널의 부분 발포방법 및 그 제조장치의 하부 발포금형
IPC: B29C45/14
Filed: 1999-07-30
Abstract: 본 발명은 자동차의 내부 패널에 관한 것으로 더욱 상세하게는, 코어층과 폼층 및 스킨층으로 이루어져 자동차의 실내 내벽을 형성하는데 사용되는 내부 패널의 부분 발포방법 및 그 제조장치의 하부 발포금형에 관한 것이다. 
     이를 위하여 본 발명은, 리어코어층(11)과 프런트코어층(16)을 일체로 형성한 하나의 유니티코어층(20)을 마련하고, 상기 유니티코어층(20)에서 폼층(18)을 형성할 부위에는 별도의 프런트스킨층(17)을 부분 발포에 의하여 결합시킬 수 있도록 하여 자동차 내부 패널에 부분적으로 폼층(18)을 용이하게 형성할 수 있는 제조방법과 그에 따른 개량된 하부 발포금형(45)을 제공하여 자동차 내부 패널을 제작할 때 발생하던 중복 공정을 없앨 수 있으며, 자동차 내부 패널의 구성을 단순화할 수 있어 제품의 불량이 적으며 제품의 제작에 필요한 인력과 시간 및 재료의 낭비를 미연에 줄일 수 있도록 하였다.
Patent KR-19990083780-A (KR)
Title: 거정 약돌 비누 제조방법
Filed: 1999-07-29
Abstract: 본 발명의 거정비누는 거정석미분말(500-6000MESH)를 배합비율 1%-30% 배합 1600RPM으로 혼합하여 에멀죤 상태로 균질화시켜 거정석 약돌 비누를 제조하여 피부미용에 효능을 높인다.  본 발명의 거정비누를 사용하면 페그마타이트내에 함유되어 있는 Ge, Ho, Na 2 O, CaO, K 2 O, SiO 2 , Y 2 O 3 , Zi 2 O 2 등의 작용으로 피부가 부드러워지고 여드름이 빨리 가라앉고, 머리에 비듬이 줄어들고, 낭습, 냉이 줄어드는 효능이 나타나게 되며 또, 기존의 비누와는 달리 효능, 효과면에서 가정비누로 피부미용에 많은 도움을 주게 된다.
Patent KR-20000017368-A (KR)
Inventor: MICHAELEDURART
IPC: G03G9/097
Filed: 1999-08-18
Abstract: PURPOSE: Materials for charge controller is provided to improve charge controlling ability, thermal stability and toxicity, resulting in efficient and environmental friendly charge controller. CONSTITUTION: The materials such as a metal carboxylate and a metal sulfonate are used as the charge controller of a toner for electrophotography and a developer, a power coating material and a charge generator of a electronics. The metal carboxylate and the metal sulfonate are synthesized by reacting a acid such as hetero aromatic mono- or di-carboxyl acid with a water soluble metal salt in a water alkali medium. A coordinate number of the metal cation is two or three.