baber/WOPTO huggingface dataset:
Patent KR-20000030840-A (KR)
Inventor: LEE HYEONG YONG
IPC: A43B23/02
Filed: 2000-03-21
Abstract: PURPOSE: A bulletproof military shoes are provided to protect feet from bullet or from the broken piece of an explosive by forming a bulletproof inner layer on the inner side of an upper leather, by forming a bulletproof intermediate tendon between an intermediate sole and a sole of the shoe and by attaching plural shoe lace hangers at an ankle part of the upper leather for hanging a bulletproof shoe string. CONSTITUTION: The Cool Max is used for an inner layer(21a) contacting with the inner surface of an upper leather(11) and the Combrella is used for the inner layer forming an inner leather of a military shoe. And the Spectra is used for an inner layer(21) inserted between inner layers(21a,21b). Plural hole irons(11a) are integrally formed with the top of the upper leather for a bulletproof shoe string(25) to penetrate the holes at the top of the upper leather having a tongue(16) of the shoe. And plural shoe lace hangers(26) are integrally formed with the upper leather at the ankle part for hanging the shoe laces.
Patent KR-20010092603-A (KR)
Title: Multi Purpose Electric Power Unmanned Flying Platform with Vertical Take Off and Landing Capabilities for Aerial Photos, Surveillances & Observations, Communications, Target Recognitions & Identifications.
Inventor: KWON DAVID CHUL
IPC: B64C7/00
Filed: 2000-03-22
Abstract: PURPOSE: A multi-purpose unmanned aircraft for local monitoring, taking pictures, watching and communication is provided to promote long-time specific local monitoring and watching impossible for an airplane or a helicopter by improving the structure for vertical rising and falling as well as flight at a standstill. CONSTITUTION: An unmanned aircraft(1) is fixed as each ring hinged from a foothold portion in the center of a truck is connected to four hooks under the aircraft. To launch the unmanned aircraft, a worker unlocks the four hooks from the rings of the foothold. Then, the worker sets a multi-step aircraft control switch on a control console to a lower step of falling and turns on a power switch. A motor(3) of the unmanned aircraft is driven and blades(2) connected to the motor are rotated at the minimum speed. The rotation speed of the blades rises up slowly when the worker changes the multi-step aircraft control switch to a higher step of rising from the lower step of falling. The lift force of the unmanned aircraft rises up gradually and the unmanned aircraft is lifted vertically. In addition, the unmanned aircraft can fly at a standstill when the control switch is fixed by a locking bar at the desired height. The unmanned aircraft is useful for long-time local monitoring, taking pictures and watching. Therefore, the unmanned aircraft promotes the maximum efficiency and good points in cost to effect.
Patent KR-20010095525-A (KR)
Title: Method for providing heart hospital in computer network system and record medium thereof
Inventor: LEE SANG HYUN
IPC: G06F17/00
Filed: 2000-04-10
Abstract: PURPOSE: A method and a recording medium for providing a mind hospital in a computer network system are provided to easily and smoothly cure a trouble in a user mind by performing a data counsel routine and an online counsel routine. CONSTITUTION: A data counsel routine(S32) systematically outputs a menu of necessary data for a life counsel and data selected by a user computer. When the question message is received from the user computer, an artificial intelligence counsel routine(S42) infers the received question message, searches the most suitable answering data, and outputs it. An online counsel routine(S52) outputs a menu of an online counseling room necessary to the life counsel and connects the computer of the online counseling room selected by the user computer to the user computer.
Patent KR-20010090676-A (KR)
Title: Personal computer mouse
Inventor: KANG BYUNG HEUN
IPC: G06F3/0354
Filed: 2000-04-10
Abstract: PURPOSE: A mouse for a personal computer is provided to memory an accurate working position by clicking the left sub button long and to return to the memorized position by clicking the left sub button shortly after various works by forming two sub buttons on a computer mouse. CONSTITUTION: A computer mouse(1) has a left sub button(6) and a right sub button(8) besides a currently used left button(2) and right button(4). The left sub button(6) and the right sub button(8) are formed as a small size compared to the left button(2) and right button(4) to the front direction of the left button(2) and right button(4) according to a line being contacted to the left button(2) and right button(4). The left sub button(6) and the right sub button(8) are installed capable of being clicked in the same way as the left button(2) and right button(4). A portion of the inner line of the mouse line(15) is constructed for transmitting signals to the computer in accordance with clicking the left sub button(6) and the right sub button(8).
Patent KR-20000049665-A (KR)
Title: Current collector for light electric motor car
Inventor: LEE BYUNG TAEK
IPC: B60L5/22
Filed: 2000-04-21
Abstract: PURPOSE: A collector for a subway train is provided to easily maintain and repair the collector by simplifying the structure of the collector. CONSTITUTION: A collector for a subway train comprises a bracket(130), a base(110), a fuse box(120), a pair of first and second links(142,144), a link portion(140), a connecting member(148), a collecting shoe fixing plate(162), and a collecting shoe(160). The base(110) is engaged with the bracket(130). The fuse box(120) is provided on the upper surface of the bracket(130), and comprises an opening/closing door(122). A fuse is installed in the fuse box(120). The first and second links(142,144) are mounted to the upper and lower surface of the tip end of the base(110). The link portion(140) comprises a spring(146).
Patent KR-20000071762-A (KR)
Title: 엔진 시동장치
IPC: F02N15/00
Filed: 2000-04-21
Abstract: 본 발명은 엔진 시동시의 부하에 의한 영향을 작게하여 시동성을 향상시키는 것으로서, 제어부(1000)가 Ne 센서(153)에 의해 엔진 정지를 검출하면 릴레이RyA를 온으로 한다. 스타터 릴레이 제어부(400)는 스타터 스위치가 조작되면 릴레이RyA를 온으로 한다. 릴레이RyB는 엔진 수온에 따라 설정된 시간 오프로 유지된다. 릴레이RyA가 온으로 되어 있을 때 스타터 모터(171)가 힘을 받으며, 릴레이RyB가 오프인 동안은 모터(171)는 역회전하고, 릴레이RyB가 온으로 되면 정회전한다. 이렇게 하여 수온에 따라 엔진 가열 정도가 판단되며, 엔진의 가열이 진행되는 경우는 크랭크 역회전 시간을 짧게 하고, 엔진의 가열이 진행되지 않는 경우는 크랭크 역회전 시간을 길게한다. 이렇게 하여 설정된 시간의 역회전에 의해 저부하 토크 범위에 크랭크를 위치시키고, 그 후 정회전시킨다.
Patent KR-20000037451-A (KR)
Inventor: CHO SENG RAE
IPC: A62C31/02
Filed: 2000-04-25
Abstract: PURPOSE: An ejection nozzle for a fire pump is provided not to be dashed against a fire hose by taking off shaking of the fire hose when a fireman misses his hold of it. CONSTITUTION: An ejection nozzle for a fire pump comprises : an intake pipe(10) connected with an end of the fire hose ; an exhaust pipe(20) bolt-connected with the front outer circumference of the intake pipe to move to front and near ; an opening and closing device(25) installed in the front inner side of the intake pipe(10) to open or close an exhaust opening(21) of the exhaust pipe(20) ; a closing valve(30) that make the water flow pass or not according to the existence of seizing power of a fireman. The closing valve(30) has a valve seat(31), a valve rod(33), a compressing spring(35) an operating handle(36) and a supporting part(37).
Patent KR-20010097670-A (KR)
Inventor: KANG YEON SIK
Filed: 2000-04-25
Abstract: 본 발명은 인터넷을 이용한 건물 수리의 견적 산정 및 공사업체 선정 방법에 관한 것이다. 
     운용자의 웹서버에 예상견적데이타를 구비하고, 공사발주자인 사용자가 운용자의 웹사이트에서 예상견적데이타를 출력하여 입력양식에 맞게 기재한후, 웹서버에 저장하면 상기 운용자는 사용자가 작성한 예상견적데이타를 토대로 데이타베이스서버에 저장되어 있는 각 시공재료, 또는 노동임금에 대한 표준금액정보 등을 검색하여 표준 예상견적을 산출하고, 운용자의 웹서버에 표준 예상견적을 게재하면 다수개의 회원 시공업체는 운용자의 웹서버에 게재된 표준 예상견적을 참조하여 적정 예상견적을 웹서버로 전송하면 공사발주자인 사용자가 다수개의 회원 시공업체가 제시한 적정 예상견적 중에 하나의 회원시공업체를 선택함으로써, 사용자가 직접 다수개의 시공업체를 방문하여 상담을 한후, 적정 예상 견적을 산출하는 시간상, 거리상의 번거로움을 없앤 인터넷을 이용한 건물 수리의 견적 산정 및 공사업체 선정 방법이 제시된다.
Patent KR-20010103950-A (KR)
Inventor: JUN HOE HAM
Filed: 2000-05-12
Abstract: 본 발명은 황소개구리 가죽을 제조하기 위한 방법에 관한 것으로서,  황소개구리 껍질을 염장하는 공정,  pH 9∼10의 계면활성제 수용액에 침지하여 껍질내에 있는 지방질을 제거하는 공정,  pH 12∼13의 알카리 수용액에 넣어 단백질을 제거하고 섬유를 풀어주는 공정, 중화제 처리 공정, 효소처리에 의한 은면가공공정(효해), 저온의 소금물에 침지하는 침산공정, 소금물에 산을 첨가하여 pH를 2.6∼2.8로 조정하는 공정, 글루타르알데히드(glutaraldehyde)를 넣어 유성가공하는 공정, 알카리를 넣어 pH 5.5 이하로 중화하는 공정, 탄닌처리 공정, 가지공정, 및 포름산에 의한 고착공정을 순차적으로 포함하며, 이에 의하면 외관이 미려하고 부드럽고 질겨서 고품질의 가죽제품을 경제적인 가격으로 제공할 수 있게 되며, 그 결과 황소개구리에 경제적인 이익을 부여하여 황소개구리 퇴치에 간접적으로 크게 도움을 줄 수 있게 된다.
Patent KR-20010109643-A (KR)
Inventor: KIM DAE YONG
Filed: 2000-05-31
Abstract: 본 발명은 인터넷 역경매 방법 및 그 장치에 대하여 개시한다. 본 발명의 바람직한 한 실시예는, 인터넷에서 역경매를 하는 방법 및 장치에 있어서, 인터넷에서 상품과 서비스에 대해 역경매를 할 수 있는 방법 및 장치를 제공하는 인터넷 사이트(이하 "바이메일"이라고 한다)에서 구매자가 회원가입을 하는 단계(a100), 바이메일에 판매자가 자신의 e메일 주소를 포함한 신상정보를 입력하면서 판매자용회원으로 회원가입을 하는 단계(a200), 구매자가 자신이 구매하고자 하는 상품이 분류되어 있는 바이메일 웹사이트상의 해당 카테고리로 와서, 해당 카테고리 내의 게시판에 게재되어 있는 과거의 낙찰메일들을 읽고서 상품에 대한 정보를 취득하는 단계(a300), 구매자가 상기 카테고리 내에 있는 구매희망메일쓰기를 나타내는 버튼을 클릭한 후 바이메일로부터 승인 받은 자신의 아이디와 비밀번호를 입력한 후 구매희망메일을 작성해서 판매자들에게 발송하는 단계(a400), 바이메일의 컴퓨터서버는 상기 구매희망메일을, 상기 카테고리에 해당되는 상품을 판매를 하겠다고 등록한 판매자용회원의 e메일 주소로 발송하는 단계(a500), 판매자가 구매희망메일을 읽고서 자신이 제공할 수 있는 상품들을 나열한 후 상기 상품의 사진이 있는 인터넷 사이트의 주소를 포함한 기타 여러 자료들을 같이 기록해서, 바이메일의 구매자의 구매희망메일의 e메일 주소로 답장으로 보내는 단계(a600), 구매자가 다수의 응찰메일들을 읽고서 가장 마음에 드는 조건을 제시한 판매자의 메일 1개를 선정해서 상기 메일을 낙찰메일로 결정하겠음을 나타내는 웹사이트상의 특정 버튼을 마우스로 클릭한 후 신용카드 등으로 요금 결제를 하면, 바이메일의 컴퓨터서버는 자동으로 상기 구매자의 개인 정보 중에서 상품 배송에 필요한 일부 정보를 판매자가 등록한 e메일 주소로 발송하는 단계(a700), 판매자가 바이메일에서 보내온 e메일에 담긴 자료를 토대로 구매자에게 상기 상품을 배송하는 단계(a800), 구매자가 판매자가 보내온 상품을 받아 상품의 정상 여부를 확인하는 단계(a900) 및 바이메일이 판매자에게 구매자가 결제한 금액에서 소정액을 지불하고, 상기 구매자가 낙찰메일로 선택했던 상기 판매자의 상기 응찰메일을 상기 카테고리의 게시판에 낙찰메일로 게재되게 하는 단계(a1000)를 포함하여 이루어진다. 
     상기한 요약서를 통해 알 수 있듯이, 본 발명은 지금까지의 인터넷상에서 행해지는 역경매 방법과 그 장치들이 가지고 있는 단점을 개선한 발명이다. 현재의 역경매 사이트의 문제점은 구매자나 판매자 모두 자신들이 사고 팔고자 하는 상품이 구체적으로 어떤 상품인지 그것을 알기가 거의 불가능 했고, 또한 자신이 상대방에 상대방에게 보여주기가 거의 불가능 했다는 점이다. 그것은 역경매 사이트를 통해 판매될 수 있는 상품이 종류는 무수히 많기 때문에 이 모든 상품들을 소개하는 그림이나 동영상을 상기 역경매 사이트에 게재하기 위해선 엄청난 시간과 인력이 요구되는데 이러한 요소들은 인터넷 역경매 업체들의 치명적인 수익성 악화의 요인이기 때문에 기존 업체들은 이러한 서비스를 제공하지 못해 왔기 때문에, 결국 자신이 구매할려는 상품의 그림 조차 확인할 수 없는 구매자들은 인터넷 역경매 자체를 외면하게 되는 상황이였다. 또한 게시판 형태로 진행되는 기존의 역경매 사이트는 미국 인터넷 업체들이 제소하는 특허분쟁에 휘말릴 여지가 많기 때문에 새로운 방식의 인터넷 역경매 서비스 방법의 개발이 절실히 요구되는 상황이였다. 
     하지만 본 발명은 구매자와 판매자 모두가 자신들이 상대방에게 사거나 팔려는 상품에 대한 그림이나 동영상 정보를 인터넷 역경매 사이트의 운영자의 손을 빌리지 않고도 제공할 수 있기 때문에, 상기 바이메일을 통한 인터넷 역경매 서비스를 통한 거래는 더욱 촉진시킬 수 있고, 특히 특히 전자상거래의 실질적인 주역으로 떠오르는 주부들의 경우에게 익숙한 e메일 방식의 역경매 방법 및 그 장치를 활용하는 바이메일의 시스템은 인터넷 전자상거래를 더욱 촉진시킬 수 있다. 또한 보통의 역경매 사이트는 판매자가 일부러 역경매 사이트에까지 찾아와서 응찰을 해야만 했기 때문에 보통 5일에서 10일 정도의 응찰 시간이 소요 된다는 단점이 있었고, 이러한 점 때문에 역경매 서비스의 발전이 미진했었다. 하지만 기존의 인터넷 역경매 서비스 제공 업체들과는 달리 바이메일의 역경매 서비스는 판매자들이 수시로 활용하는 e메일 주소를 통해서 역경매를 진행하기 때문에, 그만큼 입찰에 참여하는 기회도 많아지고 응찰하는 시간도 빨라짐으로 인해서 결국 구매자도 더 빨리 자신이 원하는 상품을 구매할 수 있게 된다.
Patent KR-20020001038-A (KR)
Title: An advertisement providing system and the providing method
Inventor: LEE DO HYUNG
Filed: 2000-06-23
Abstract: PURPOSE: An advertisement providing system and a method thereof are provided to supply a user whose wants to download an advertisement with the advertisement and to give a predetermined incentive to the user on the basis of a stock exchanging concept. CONSTITUTION: A user information data base(110) stores a user information containing an incentive allotted to the user. An item advertising data base(120) stores a kind of advertisement, an estimated final cost, an actual final cost and an item advertising data. An item advertising server(130) transmits the item advertising data to a user terminal(100) and then stores the estimated final cost in the item advertising data base(120). Also, the item advertising server(130) stores the incentive in the user information data base(110). An advertisement providing server(160) shows a position information of the item advertising data stored in the item advertising data base(120) and transmits information for providing an advertisement providing service to the user terminal(100).
Patent KR-20010029839-A (KR)
Title: System and Method for predicting stock market
Inventor: SUN JONG KEE
Filed: 2000-06-24
Abstract: PURPOSE: The method and system for forecasting the price of a stock is provided to help personal investors by forecasting a closing price of securities having fluctuating price. CONSTITUTION: A host server stores registered data in a member database by classifying the members as a general member or a group member(S102). The host server calls information with respect to a stock selected by a client from a stock database and stores the information in a voting database by reflecting a user's vote and a forecasting stock price fluctuating rate(S106). If the client selects a showing for a recommendation list(S108), the host server calculates a total voting items, voting number and forecasting fluctuating rate from the voting database and outputs the result to a web browser program of the client(S110). The host server accumulates information of the last week voting result, voting items and a forecasting fluctuating rate(S112). The host server stores a hitting ratio in a voting state accumulating database by comparing the voting result of the last week with an actual stock price in this week(S114). The host server calculates a higher results group and a hitting ratio higher rank group during a specific period and stores the calculated value in an upper group database(S116). If the client selects a showing for weekly results of an item recommendation(S122), the host server calls the result stored in the voting state accumulating database and offers the client(S124).
Patent KR-20010007595-A (KR)
Inventor: RONALD M AAGUERESU
IPC: H01L23/50
Filed: 2000-06-30
Abstract: PURPOSE: A deformation absorbing lead frame for semiconductor device is provided to absorb thermomechanical stress applied during molding capsule sealing process, acceleration test including temperature and moisture change, and operation of device by disposing a support member in the circumferential fringe of a chip such that it can partially operate to absorb thermally induced deformation. CONSTITUTION: Each support member(402) is fixed to the outside of the circumferential fringe of a pad(401) and to the inside of a lead frame. The support member(402) partially comprises a deformation absorbing structure(405) conforming to bend or elongation exceeding the simple elongation based on the inherent properties of material. Two support members(402) intersect at a point close to the center of a chip mount pad(401). Consequently, the deformation absorbing structure(405) is confined in the package of a completed semiconductor device and prevented from being discarded together with a rail(404) during trimming process. The deformation absorbing structure(405) is designed with such a geometry as the supporting member(402) elongates by 50-500% that of the lead frame material.
Patent KR-20020005890-A (KR)
Inventor: PARK IN CHUL
Filed: 2000-07-10
Abstract: PURPOSE: A management system of medical record in a hospital is provided to simplify process of a hospital by managing a reserving schedule and personal information of a patient systematically and to attract many clients by improving a service to a patient. CONSTITUTION: A terminal(11) is installed in a medical room and a recipient room for inputting medical managing information including medical treating information, a reserving information, a requesting line information, and personal specific item information. DBs(12) according to patients store medical managing information inputted from the terminal(11). A reserving information DB(13) stores reserving schedule information according to patients. A staff information DB(14) stores a working schedule according to staffs and charged medical subject information. A reserving schedule managing system(15) notifies a reserving schedule to a patient in accordance with a reserving schedule stored in the reserving information DB(13). A central managing server(16) stores patient information being inputted from the terminal(11) in the DBs(12) and supplies reserving schedule information according to patients in the reserving schedule managing system(15) and outputs a medical managing screen to the terminal(11). A medical treatment cost calculating computer(17) calculates treatment costs according to patients and requests a treatment cost to a medical insurance association server(18).
Patent KR-20020007710-A (KR)
Title: Method for extracing tetrodotoxin
Inventor: KIM DONG CHUN
IPC: A61K35/12
Filed: 2000-07-18
Abstract: PURPOSE: Provided is a method for extracting tetrodotoxin from organisms such as swellfish in a high yield and purity. CONSTITUTION: The method for extracting tetrodotoxin of the formula(1) comprises the steps of: dipping an organism, particularly swellfish, or its organs, such as liver, gonads, intestines and skin, into water then followed by heating and filtering it; absorbing the filtrate to amberlite IRC_50; desorbing the amberlite IRC-50 in a mixed solution of acetic acid and water; absorbing the desorbed solution to activated carbon then desorbing it in a mixed solution of acetic acid, alcohol and water; and vacuum concentrating the desorbed solution then crystallizing it.
Patent KR-20020007753-A (KR)
Title: Internet Advertisement With Orginal Equipment Manufacturer Game
Inventor: HWANG SUNG JIN
Filed: 2000-07-18
Abstract: PURPOSE: An Internet advertisement through a game on demand is provided to create an advertising effect by receiving an order of an institution and a company and manufacturing and lending an OEM(original equipment manufacturing) game and uploading the game to a homepage of the institution and the company. CONSTITUTION: An OEM(original equipment manufacturing) type game is manufactured by receiving an order of an institution and a company and lent to the institution and the company. The OEM(original equipment manufacturing) type game is uploaded to a homepage of the institution and the company and updated every fifteen days-thirty days. The OEM(original equipment manufacturing) type game manufactures a commodity image of an institution and a company as a game, thus the game is an Internet advertisement which may replace a banner advertisement. Netizens may receive an image of the institution and the company potentially. The OEM(original equipment manufacturing) type game may receive not only a request of a company but also a request of a netizen, thus an advertisement emphasizing a user, an orderer-centered design, and a function may be performed.
Patent KR-20010030010-A (KR)
Title: Semiconductor workpiece processing apparatus and method
Inventor: PETER WEIGAND
IPC: C23C16/46
Filed: 2000-07-26
Abstract: PURPOSE: A device and method for manufacturing semiconductor device is provided to precisely measure and control the temperature of the wafer. CONSTITUTION: The wafer manufacturing device has a process chamber(101), a chuck installed to the chamber(101) for retaining a wafer(140), and a pedestal(102) which is positioned at an interval from the chuck. A first gas layer is supplied to the space between the chuck and wafer(140) and a second gas layer is supplied to the space between the pedestal(102) and chuck. The pressure of the first gas layer is controlled within a certain pressure range and the thermal conductivity of the first gas layer is fixed against the pressure fluctuation of the first gas layer in the pressure range. The pressure of the second gas layer is controlled so as to control the quantity of heat transferred to the pedestal(102).
Patent KR-20000063671-A (KR)
Inventor: KIM CHAN WOONG
IPC: G06Q50/10
Filed: 2000-07-28
Abstract: PURPOSE: A method for supplying interactive PADUK instructional service is provided to perform effectively a PADUK instruction over internet without interference with a time and a place. CONSTITUTION: A method for supplying interactive PADUK instructional service comprises an instructor terminal, an internet communication network, a PADUK instructional server, a line, and a PADUK instructional port. The instructor is connected to a homepage constructed to the PADUK instructional server using the instructor terminal. The PADUK instructional server supplies the instructor terminal connected over internet with a linkable program tool (S110). The PADUK instructional server discriminates whether the PADUK instructional service is requested to the instructor(S120). If the instructor requests a PADUK game service instead of the PADUK instructional service. The PADUK instructional server transmits a program for a game of PADUK(S130,150). If the instructor requests the PADUK instructional service, the PADUK instructional server transmit the PADUK instructional program to the instructor terminal(S140). At this time, the server transmits a lecture program and a reaction program(S160,S170). In case of the lecture program, if the instructor takes all of the lectures, the lectures is completed(S210). The reaction program discriminates whether the point is in a formal way to perform a detailed rate and a failure rate from a point arrived by the instructor(S180). If the point is in a formal way, the reaction is completed(S220). If the point is not in a formal way, an alarm for a failure is supplied though a speaker of the instructor terminal(S190). After explaining the reason for the failure, The explanation is finished(S230).
Patent KR-20020012831-A (KR)
Title: Method for providing character mode convert using the input method editor and computer readable medium having stored thereon computer executable instruction for performing the method
Inventor: KIM SEUNG QYU
IPC: G06F3/023
Filed: 2000-08-09
Abstract: PURPOSE: A method for converting a character input mode and recording media capable of being read in a computer are provided to promptly correct a wrong character by clicking a mouse without inputting another character after deleting the wrong character. CONSTITUTION: A user connects to the Internet(S51). A text input window is displayed for enabling the user to input a URL(Uniform Resource Locator) address, information and a searching word(S52). A mouse cursor is moved for inputting a character to the text input window(S53). The first character mode displayer including an advertisement is displayed in a determined position of the text input window(S54). It is judged whether a character mode of the character mode displayer is a character mode which the user wants(S55). In case that the character mode is desired by the user, the user inputs a character to the text input window(S58). In case that the mode isn't desired by the user, the mode is converted into the mode desired by the user(S57). The character is inputted to the text input window(S58).
Patent KR-20020014545-A (KR)
Title: Apparatus and method for lock detection of digital broadcasting receiver
Inventor: AHN GEUN HUI
IPC: H04N7/015
Filed: 2000-08-18
Abstract: PURPOSE: A lock detector of a digital broadcasting receiver is provided to remove the false-lock of an AGC(Automatic Gain Controller) by generating a lock control signal from the polarity of phase error. CONSTITUTION: A lock detector consists of a PPE(Polar Phase Error) mean curve generator(601) outputting a PPE mean curve by obtaining the mean of PPE generated from a phase/frequency error detector of a carrier restoration unit during a specific time, a threshold calculator(602) comparing the mean curve with pre-calculated plural PPEAM ROM(Polar Phase Error Mean Read Only Memory) table values, and a reliability counter(603) estimating the locking and unlocking time points according to the output of the threshold calculator and outputting lock control signals. The carrier restoration unit generates a baseband digital signal by removing the frequency offset and phase jitter from the digital signal according to the lock control signals. Therefore, the reliability of the lock detector to false-lock is improved.