baber/WOPTO huggingface dataset:
Patent KR-20000024447-A (KR)
Inventor: KWON SU JIN
IPC: H01L31/10
Filed: 2000-02-15
Abstract: PURPOSE: An avalanche optical detector and manufacturing method is provided to improve a receiving sensitivity of an optical detector by greatly increasing an amplification of a center portion of an activating region. CONSTITUTION: An n-InP buffer layer(31) is deposited on a n+-InP substrate. Ann-InGaAs optical absorption layer(32) is deposited on the n-InP buffer layer(31). One layer or a plurality of layers are deposited on the n-InGaAs optical absorption layer(32). An n-InGaAsP grading layer(33) is not doped. An n-InP field buffer layer(34) is deposited on the n-InGaAsP grading layer(33). An n-InP amplifying layer(35) is deposited on the n-InP field buffer layer(34) at 1.5-4 micro m thickness. A p+-InP diffuse layer(37) has a spatially limited pn junction. A p+-InP guiding(36) is formed to a peripheral portion of the diffuse layer(37). A p-surface electrode is formed on the diffuse layer(37). An n-surface electrode is formed to a surface.
Patent KR-20010006691-A (KR)
Title: Switchable hydraulic damping bearing
Inventor: JIBUTIS ARNOLT
IPC: F16F13/26
Filed: 2000-02-24
Abstract: PURPOSE: Disclosed is a switchable hydraulic damping bearing which has a small size, a low altitude, a high spring strength and a large damping. CONSTITUTION: The switchable hydraulic damping bearing includes supporting bearings(1) and supporters(2) which are elastically supported by springs made of an elastic polymer; an operating chamber(4) being disposed along a direction for transmitting a vibration generated during the operation of the hydraulic damping bearing and being filled with a damping fluid; and a compensating chamber(5). The operating chamber is communicated with the operating chamber(4) through at least one damping channel which is defined by a common partition. The operating chamber(4) is defined by at least one curved film which define an air chamber at a position opposite to the operating chamber(4). An air chamber(11) is connected with periphery components so that the fluid flow through a valve or a check valve(13) in accordance with an operational state of an engine. When a valve(12) is closed and bearings are subjected to a tensile movement in order to increase the strength of the bearings, the air chamber(11) may be expand by the air flowing through the check valve(13).
Patent KR-20010006726-A (KR)
Title: Method for transferring data using expanded permanent identifier
Inventor: ROLLENDER DOUGLAS HAROLD
IPC: H04M11/00
Filed: 2000-03-02
Abstract: PURPOSE: A method is provided to allow an end user to transmit data more efficiently than a conventional method by allowing a communication device to communicate both of an extended second permanent identifier and first permanent identifier to a home system. CONSTITUTION: A handling system (12) supplies a first permanent identifier and a changed-edition and extended second identifier to the home system (16) through a network (14) and a second communication device (8). If the system (12) supplies only one of the first permanent identifier and the edition-changed and extended second identifier, the system (16) requests the other permanent identifier. If the system (16) does not receive the extended part of the edition-changed and extended second permanent identifier, the system (16) requests the extended part to the system (12). Consequently, the end user (2) can transfer data to the entity (6) without requiring establishing a traffic channel.
Patent KR-20010092961-A (KR)
Title: Circuit of generating infrared carrier of a receiver for extending operational range of an infrared remote cotrol
Inventor: JU SE UNG
IPC: H04Q9/14
Filed: 2000-03-28
Abstract: PURPOSE: A circuit for generating an infrared carrier of an operating range expanding receipt device of an infrared remote controller is provided to receive a UHF radio signal in a receiving antenna, recover the UHF radio as an electric signal through a modulation and demodulation process, generate the infrared carrier to combine the generated infrared carrier with the electric signal, and reproduce a signal same to a signal of the infrared remote controller. CONSTITUTION: A UHF receiving unit(1) receives a UHF radio signal. A local oscillating unit(2) oscillates an intermediate frequency to the UHF receiving unit(1). An intermediate frequency filter unit(3) removes a noise component of the intermediate frequency. An infrared carrier generating and combining unit(4) generates an infrared carrier and combines a digital signal output from the UHF receiving unit(1) receives with the generated infrared carrier. An infrared illuminant unit(5) converts a signal output from the infrared carrier generating and combining unit(4) into an infrared optical signal.
Patent KR-20010092942-A (KR)
Title: Internet School
Inventor: LEE JUNG KU
IPC: G06Q50/20
Filed: 2000-03-27
Abstract: PURPOSE: An internet institute is provided to increase the convenience of a user by storing a plurality of contents of lectures related to all sorts of subjects as files of moving pictures in a provider homepage, and by enabling the user to select an instructor and a subject and receive the lecture on the subject in real time. CONSTITUTION: In case that a user connects to a homepage of an internet institute, the homepage is displayed(S10). In case that the user clicks an icon of guidance to lectures(S11), a window for inputting an ID and a password is displayed(S12). In case that the user want to become a member and clicks an icon for joining(S13), a web site provides a homepage for guiding a user to join(S14). A homepage for entrance forms is provided for inputting contents related to personal information of the user(S15). According as the user inputs the ID and the password, a homepage for guiding users to select instructors by subjects is provided(S16). In case that the user selects and clicks an instructor, a homepage for the instructor's profile, key points and contents of lectures is provided(S17). In case that the user clicks an icon for downloading the contents(S18), the homepage provides the contents to the user. The user takes the lectures in real time through the internet(S19).
Patent KR-20010097013-A (KR)
Inventor: BYEON SONG HO
IPC: C09K11/08
Filed: 2000-04-19
Abstract: 본 발명은 산화물 형광체 및 그 제조방법에 관한 것으로서, 하기 일반식 (1)로 표시되는 산화물 형광체를 제공한다. 
     A 2-x-y B x C y O 3-x (1) 
     상기 식중, A는 가돌리늄(Gd) 및 이트륨(Y)으로부터 선택되는 1종 이상이고; 
     B는 리튬(Li), 나트륨(Na) 및 칼륨(K)으로부터 선택되는 1종 이상의 알칼리 금속 이온이며; 
     C는 세륨(Ce), 프라세오디뮴(Pr), 유로피움(Eu), 테르븀(Tb), 에르븀(Er) 및 툴륨(Tm)으로부터 선택되는 1종 이상의 희토류 원소이며, 0<x≤0.3, 0<y≤0.3 이다. 본 발명에 의한 형광체는 UV 영역에서의 휘도 향상은 물론 특히 1kV 이하의 저전압 영역에서 매우 향상된 휘도를 나타내기 때문에 본 발명에 의한 형광체를 형광램프, 형광 디스플레이 또는 저전압 FED에 적용하는 경우 매우 향상된 휘도를 얻을 수 있다.
Patent KR-20010097740-A (KR)
Inventor: JOUNG SUN AEE
IPC: G06F3/14
Filed: 2000-04-25
Abstract: 본 발명은 하나의 단말장치에 주화면과는 별도로 적어도 하나의 보조 화면을 구비하여 정보를 선택적으로 출력하도록 하는 보조 화면이 구비되는 단말장치 및 그의 화면출력방법에 관한 것이다. 본 발명은, 화면으로 정보가 출력되는 단말장치에 있어서, 단말장치와 일체로 구비되고, 단말장치의 제어에 따라서 정보가 화면으로 출력되는 주화면부; 및 주화면부의 측부에서 구비되고, 단말장치에 의하여 제어되는 정보가 화면으로 출력되며, 주화면부와는 별도로 적어도 하나가 구비되는 보조화면부를 포함한다. 본 발명에 의하면, 주화면부와 각각의 보조화면부에서 구비되는 서로 다른 화면을 통하여 서로 다른 정보를 하나의 단말장치에서 출력할 수 있고, 사용이 필요 없는 경우에 보조화면을 주화면부의 후면부에 위치시키거나, 커넥터 분리에 따라서 철수할 수 있으며, 각 화면에 구비되는 소정의 형상을 선택함으로써 주화면과 보조화면에서 출력되는 정보들의 이동과 확대, 축소의 처리가 용이하다는 장점이 있다.
Patent KR-20010097785-A (KR)
Inventor: KANG DONG SEOK
IPC: G06Q30/02
Filed: 2000-04-26
Abstract: 본 발명은 디지털 컨텐츠의 다운로드 서비스를 통한 디지털 컨텐츠의 다단계 유통/분배/전파 방법에 관한 것으로, (a) 통신망을 통하여 디지털 컨텐츠의 다운로드 서비스를 제공하는 서버에 접속하여, 상기 서버에서 디지털 컨텐츠에 대한 결제를 수행하고, 보안이 설정된 디지털 컨텐츠를 다운로드받는 단계; (b) 상기 (a) 단계에서 결제를 수행하고, 다운로드받은 디지털 컨텐츠를 다른 사용자에게 전파하는 단계; (c) 상기 (b) 단계에서 전파된 디지털 컨텐츠가 상기 다른 사용자의 컴퓨터에서 실행되면, 통신망을 통하여 상기 서버로 자동으로 접속하는 단계; 및 (d) 상기 (c) 단계에서 상기 서버에 접속하여, 상기 디지털 컨텐츠에 대한 결제를 수행하면, 상기 서버는 상기 (a) 단계에서 다운로드받은 사용자에게 소정의 보상을 제공하는 단계를 포함함을 특징으로 한다. 
     본 발명에 의하면, 디지털 컨텐츠를 정당하게 다운로드받은 사람이 해당 컨텐츠를 자유롭게 유통시킬 수 있고, 그에 따른 수익이 배분됨에 따라, 디지털 컨텐츠의 유통의 촉진시키는 효과가 있다. 또한, 본 발명은 종래의 암호화된 디지털 컨텐츠의 유통 매카니즘과 호환성을 가지면서 동작할 수 있는 장점이 있다.
Patent KR-20010100538-A (KR)
Inventor: KOO BON HAK
Filed: 2000-05-03
Abstract: 본 발명은 반도체 제조중에 발생되는 가스를 처리하기 위한 방법 및 그 방법을 이용한 가스 스크러버에 관한 것이다. 
     이러한 가스 처리 방법은 유독한 가스를 1차로 걸러주기 위한 제 1 필팅 단계와; 걸러진 가스를 가열하여 공기와 화학 처리하는 버닝 단계와; 처리된 가스에 추가 공기를 공급하여 잔여 유해 성분을 제거하기 위한 추가 화학 처리 단계와; 다시 걸러주기 위한 제 2 필팅 단계로 구성된다. 
     또한, 이러한 방법을 이용한 가스 스크러버는 입구부를 통하여 유입되는 가스를 걸러주기 위한 제 1 필터과; 상기 제 1 필터에 연장되고 가열 수단과 공기 주입 포트를 구비하여 상기 제 1 필터에서 걸러진 가스를 가열해 줌과 동시에 공기를 주입하여 화학 처리하기 위한 버닝 챔버와; 상기 버닝 챔버에 연장되고 하나 이상의 추가 공기 주입 포트를 구비하여 상기 버닝 챔버에서 화학 처리된 가스의 잔여 유독 성분을 제거하기 위한 연장 버닝 챔버와; 상기 연장 버닝 챔버에 연장되고 상기 연장 버닝 챔버를 통과한 가스를 다시 걸러주기 위한 하나 이상의 제 2 필터와; 상기 제 2 필터에 구비되어 필터에 고착되는 파우더를 제거해 주기 위한 고압의 공기 분사 수단을 포함하여 구성된다. 
     이와 같이 구성되는 가스 처리 방법 및 장치를 이용하여 반도체 제조중에 발생된 유해한 가스를 더욱 효과적으로 처리할 수 있다.
Patent KR-20010105073-A (KR)
Inventor: KWON HEUNG WON
Filed: 2000-05-18
Abstract: 본 발명은 담배 휠터 제조에 있어서 니코틴 및 휘발성 물질의 제거 효과가 탁월한 광물질을 휠타 제조에 이용함으로서 흡연으로 인한 국민 건강을 보호 하는데 목적을 두고 있다. 
     기존 담배 휠터에 사용된 활성탄을 모두 제거하고 대신 활성탄과 동량의 광물질을 넣어 휠타를 제조 한 후, 각각의 휠터를 통과한 휘발성 물질 및 니코틴 함량을 비교 분석하기 위해 고속 기체 분석법을 이용하였다. 광물질을 첨가한 휠터가 기존의 활성탄을 이용한 휠터보다 휠터를 통과한 담배 연기중의 니코틴 및 휘발성 물질의 양은 반으로 줄었으며 활성탄과 광물질을 적당히 혼합하면 니코틴의 제거는 물론 담배연기의 빨림성도 좋았다. 
     따라서 본 광물질을 기존의 담배 휠터에 들어있는 활성탄 대용품 및 혼합용으로 이용 한다면 담배 끽연에 의한 연기속에 들어있는 니코틴으로 인한 폐암발생 가능성을 낮추거나 최소화할 수 있를것이다.
Patent KR-20010105899-A (KR)
Title: A Grant Method of passbook by internet
Inventor: CHOI GEON
Filed: 2000-05-19
Abstract: An automatic vehicle head lamp dimming system which includes an optical system and an imaging processing system. The optical system is configured to discriminate between head lamps and tail lamps and focus the light rays from the head lamps and tail lamps on different portions of a pixel sensor array. The optical system as well as the image processing system provides for relatively increased discrimination of head lamps and tail lamps of other vehicles and also enables the high beam head lamps of the control vehicle to be controlled as a function of the distance as well as horizontal angular position of other vehicles relative to the controlled vehicle.
Patent KR-20000054500-A (KR)
Inventor: KOO MIN SE
IPC: E04C3/26
Filed: 2000-06-08
Abstract: PURPOSE: A construction method is provided to prevent the generation of a construction joint caused by the time difference of installing the floor plate concrete of static and negative moment sections and to eliminate the danger of an accident upon a spot ascending and descending work. CONSTITUTION: An H-beam(3) is laid in a bridge seat(1) and a connective plate(4) is welded on the H-beam. The connective plate is perfectly connected to a lower flange of a top steel frame by a bolt(5) or welding. The bridge seat, a chest wall(7) and abdominal and lower flanges of a top steel frame type are installed by concrete with an upper floor plate in the bridge seat and the chest wall. Herein, a reinforcing material is installed in the top steel frame and a stud(9) is installed in an upper flange beam and an abdominal part. Accordingly, a synthetic effect with the concrete is promoted.
Patent KR-20020001926-A (KR)
Title: Slide-tension link system for flap rudder
Inventor: OH SU YEON
IPC: B63H25/10
Filed: 2000-06-12
Abstract: PURPOSE: A device for driving a flap of a ship rubber horn is provided to rotate the flap according to rotation of main rubber horn and to maintain a state of displacement angle. CONSTITUTION: A device for driving a flap in a ship rubber horn comprises a sliding bar(1) fixed on an upper portion of the flap(100); a sliding block(2) sliding according to the sliding bar; first and second lifting eyes(3,4) formed on both ends of the sliding block; first and second tension rods(5,6) separately connected to ends of the first and second lifting eyes; third and fourth lifting eyes(7,8) connected to the other ends of the first and second tension rods; a support(9) fixing the main rubber horn on an upper portion of the flap by a connecting hinge(101); a block lower portion(21) inserting the sliding bar; and a block upper portion(22) installing the first and second lifting eyes. Thereby, the device for driving the flap in the ship rubber horn rotates the flap according to rotation of main rubber horn.
Patent KR-20010113127-A (KR)
Inventor: LEE SANG YEOL
IPC: H01J9/24
Filed: 2000-06-16
Abstract: 유전층 및 격벽층을 후막용 제판 및 블레이드를 이용하여 1회 후막인쇄하는 플라즈마 디스플레이 패널의 후면판 제조방법 및 그 제조장치가 개시된다. 상기 방법 및 장치는, 1회 후막인쇄로 소정의 두께가 확보되므로 공정이 단축되고 생산성이 향상된다. 또, 두께 균일성이 좋고 표면조도가 낮으므로 격벽 소성체위에 포토레지스트 코팅시 상기 격벽소성체와 포토레지스트의 균일한 밀착성으로 에칭후 균일한 격벽이 형성 가능하다. 또, 전면판과 후면판 합착시 상기 전후면판간의 밀착성이 향상되어 전압 마진(Margin)이 향상된다. 그리고, 소정의 두께가 변경될 경우 후막제판의 소정의 시트 두께만 변경하여 1회 후막인쇄로 변경된 소정의 두께를 쉽게 얻을 수 있다.
Patent KR-20000058598-A (KR)
Inventor: KIM DO GYEONG
IPC: A01N43/16
Filed: 2000-06-17
Abstract: PURPOSE: A process for producing a pesticide of a zeolite dosage form is provided which can stabilize a pesticide active ingredient. CONSTITUTION: The process comprises the steps of: spraying or absorbing liquid stabilizer such as a hydrocarbon solvent, an iso-paraffin oil, a fatty acid, a surfactant, etc. on a zeolite and additionally, adding an expander such as a hydrocarbon solvent, an iso-paraffin oil, a fatty acid, a surfactant, etc. to the pesticide active ingredient; spraying or absorbing the expanded active ingredient on the stabilizer-absorbed zeolite. The active ingredient is at least one or two compound selected from the group consisting of a sulfonyl urea, a carbamate, a thio-carbamate, a 1,3,5-triazine, an organo phosphorous, and etc. The stabilizer includes 0.005-2.0% (based on the pesticide of the zeolite dosage form) of at least one or two antioxidant selected from the group consisting of a mono phenol, a bis phenol, a polymeric phenol, a phosphorus, a sulfur, and a vitamin.
Patent KR-20010113372-A (KR)
Inventor: LEE DO YEONG
IPC: C04B38/06
Filed: 2000-06-19
Abstract: 본 발명은 기포형성제를 이용한 다공성 탄화규소체의 제조방법에 관한 것이다.  본 발명은 고분자에 탄화규소(SiC) 분말, 액상조제 및 기포형성제를 혼합하고 가공하여 내부에 기포가 포함된 전구체를 수득한 다음, 이를 소성시켜 다공성 탄화규소체를 제조하는 방법을 제공한다.  본 발명에 의하면, 다공성 탄화규소의 제조시 전구체의 기공크기를 직접 조절하여 탄화규소체의 기공 크기를 조절할 수 있으며, 따라서, 다양한 기공크기 및 기공율을 갖는 다공성 탄화규소체를 간단한 방법으로 제조할 수 있다.
Patent KR-20020001217-A (KR)
Title: Brokerage Method for Exchanging Contents
Inventor: PARK SUNG JUN
Filed: 2000-06-27
Abstract: PURPOSE: A contents transaction relaying method is provided to simply construct a system by completing a transaction of the contents, and up-loading a short information of the contents at the server without up-loading all contents at the server of the relay. CONSTITUTION: A contents provider stores a contents file in a determined directory by a contents storage module of a client program(S100). When a user wants to register a contents information in a server, the user wants to search or buy a registered contents information. The user connects to a server through a network interface such as a modem by driving of the client program, which is installed in computers(S200). A member wants to register the contents information in a database of the server. The member selects a registration menu image of the contents information of HTML document, and registers the contents information(S300). A contents buyer search the contents information by a method using a keyword search or a category classification(S400). The contents buyer ascertains a search result. To buy specific contents, the contents buyer expresses a buying intention by positioning a cursor at the corresponding contents file name and clicks a buying button(S500). When the server receives a contents buying signal, the server transmits a payment method selecting menu to the computer so that the contents buyer pays a price(S600).
Patent KR-20010039734-A (KR)
Title: Method for arranging elliptic cylindrical cell and assembled battery
Inventor: TERASAKI MASANAO
IPC: H01M10/64
Filed: 2000-07-21
Abstract: PURPOSE: To arrange batteries in a limited space without changing the design of a unit cell by using a plurality of long cylindrical batteries having a substantially elliptic section having a major axis and a minor axis, and arranging them with the major axes inclined within a plane parallel to the substantially elliptic section. CONSTITUTION: A battery case 3 is formed of Al alloy or the like, and an elliptic lid 3b is fitted to the upper end opening of a long cylindrical vessel-like case body 3a, and the circumference is sealed and fixed by welding. A positive electrode terminal 4 and negative electrode terminal 5 connected to a generating element are protruded upward from the open holes of the lid plate 3b, and insulatingly sealed and fixed by sealing the clearances with the holes. The long cylindrical battery is arranged with the major axis being inclined, whereby the height in arrangement can be reduced so as to be loadable in battery arrangement parts having various spaces, and the reduction in cost and the improvement in working efficiency can be attained. When a plurality of batteries are arranged so that the battery lid surfaces or bottom surfaces are flush with each other, the connection between terminals can be facilitated to improve the capacity efficiency, and when the batteries are arranged at intervals, the cooling efficiency of the batteries can be enhanced.
Patent KR-20010049846-A (KR)
Inventor: FUKUSHIMA SADAO
IPC: A47L9/24
Filed: 2000-07-22
Abstract: PURPOSE: To provide a vacuum cleaner allowing the return of exhaust air from an electric blower built in a cleaner body to a suction implement via a hose and a pipe, with the hose capable of preventing the impairment of operability. CONSTITUTION: This hose 21 for a vacuum cleaner consists of an outside hose 22 and an inside hose 23 to form an exhaust passage and a suction passage, and a long member is wound on the outside hose 22 and the inside hose 23 to form a tubular flexible hose which differentiates the winding pitch of the long member for the outside hose 22 from that for the inside hose 23.
Patent KR-20020008652-A (KR)
Title: Photolithograph apparatus for controlling the intensity of radiation use faraday effect and method for controlling thereof
Inventor: KOO DU HUN
IPC: H01L21/027
Filed: 2000-07-25
Abstract: PURPOSE: An exposure apparatus for controlling an exposure using a Faraday effect and a method for the same are provided to control continuously the amount of exposure within a short time by using a Faraday effect. CONSTITUTION: A light generation portion(100) is used for generating light with a wavelength of 248nm or 365nm. An exposure conversion portion(200) is formed with the first and the second polarization plate(211,212), a Faraday portion(220), a detector portion(230), a feedback controller portion(240), a selection portion(250), and a photo converter portion(260). The light generated from the light generation portion(100) passes the first polarization plate(211), a Faraday cell of the Faraday portion(220), and the second polarization plate(212). The Faraday portion(220) is formed with a Faraday cell(221), a tilt coil(222), and a voltage converter(223). The tilt coil(222) is installed in the Faraday cell(221) to change the polarized light. The detector portion(230) is used for detecting the light passing the second polarization plate(212). The feedback controller portion(240) is used for generating a control signal to the tilt coil(222). The selection portion(250) generates a signal according to intensity of light selected by a user. The photo converter portion(260) is used for recovering a characteristic of the light.
Patent KR-20010096458-A (KR)
Inventor: TAKAYAMA TOSHIHIKO
IPC: E04H15/34
Filed: 2000-08-04
Abstract: PURPOSE: A folding tent frame applicable to a folding tent for use in sun-shielding and rain-covering is provided to improve strength and stability thereof by comprising specified constructional components of the frame. CONSTITUTION: The tent frame comprises supports(2), a fixed connector(3), a restriction element(4), a mobile connector(5) and a connecting frame(6). The restriction element(4) is for limiting upward motion of at least the lowermost support(2) and is connectable to the support(2). The element is located on the uppermost support(2) placed below the fixed connector(3). The mobile connector(5) is arranged to slide on the restriction element(4) and the lowermost support(2) and to control upward motion of the support. Both of the supports(2) are formed to allow the lower support larger than the upper support.
Patent KR-20020012861-A (KR)
Title: Output data amplifier of semiconductor device for improving output stability and semiconductor device having the same
Inventor: HYUN DONG HO
IPC: G11C11/419
Filed: 2000-08-09
Abstract: PURPOSE: An amplification circuit for data output of a semiconductor device improving an output stability and a semiconductor device comprising the same are provided, which reduce a mis-operation of the semiconductor device by improving the stability of output data. CONSTITUTION: The amplification circuit comprises input data line pair(IN,INB), a current input amplification part(110) and a latch amplification part(120). The current input amplification part senses and amplifies data of the input data line pair, in response to a sense amplifier enable signal(SAEN). The sense amplifier enable signal is activated when the semiconductor device enters into a read mode. The latch amplification part senses and amplifies a voltage level difference of data being output from the current input amplification part and then latches it. The current input amplification part comprises a load part(112), the first and the second output transistor(PA1,PA2) and the first and the second load resistor(RA1,RA2) and a switch(SWA). The load part controls the amount of currents(IA1,IA2) flowing in the current input amplification part.
Patent KR-20020014870-A (KR)
Title: Mobile phone charger using a usb
Inventor: KIM HYEONG BAE
IPC: H02J7/00
Filed: 2000-08-19
Abstract: PURPOSE: A mobile phone charger apparatus using universal serial bus(USB) system is provided to achieve an improved portability by reducing the size and weight of the charger apparatus. CONSTITUTION: An apparatus comprises a switching unit connected in serial between a USB port and a data communication port; a divider unit for dividing the output voltage from a data communication port, at a predetermined ratio; a comparator unit for comparing the divided voltage with a reference voltage; a resistance connected in serial between the USB port and the switching unit; and a current detection circuit connected in parallel to both ends of the resistance. The switching unit repeatedly performs on/off operation by being connected to the comparator unit.
Patent KR-20020015542-A (KR)
Title: Optical unit unified solid immersion lens and slider for near field recording
Inventor: KANG SHIN ILL
IPC: G11B7/09
Filed: 2000-08-22
Abstract: PURPOSE: An optical unit having an SIL(Solid Immersion Lens) integral with a slider is provided to simplify the structure of an optical slider by manufacturing a slider and an optical system such as an SIL integrally with transparent material, and to remove the tolerance of an assembly line. CONSTITUTION: An optical unit(4) having an optical system integrated with a slider(9) is positioned on a disk substrate(7). The optical system consists of SILs. The bottom of the optical unit is apart from the disk substrate with specific flying height(6). At the tip thereof, a head disk interface having a suspension(8) is formed. In the optical unit, an optical pickup consisting of the SILs is mounted at the end of the slider. To obtain the optical characteristics of an SIL, the highest part of a lens is distant from the lowest part. The bottom of the SILs is agreed with the bottom of the slider with the disk substrate as a base line. A specific critical angle is formed between the SILs to project beam from the SILs smoothly. The tolerance in an assembly line is removed as the optical unit meets all of notices to be considered.