baber/WOPTO huggingface dataset:
Patent KR-20030056043-A (KR)
Inventor: LEE SANG ROK
IPC: H01J29/76
Filed: 2001-12-27
Abstract: PURPOSE: A deflection yoke is provided to improve a deflection characteristic by forming elastic ribs in a constant interval on an inner circumference of a screen portion of a coil separator. CONSTITUTION: A deflection yoke(4) includes a coil separator, a horizontal deflection coil(15) and a vertical deflection coil, and a plurality of elastic ribs(30). The coil separator includes a neck portion of a small diameter and a screen portion(11) of a large diameter. The neck portion is coupled to an electron gun portion of a cathode ray tube. The screen portion is coupled to one side of a screen side of the cathode ray tube. The horizontal deflection coil and the vertical deflection coil are formed on an inner circumference and an outer circumference of the coil separator in order to form the horizontal and the vertical magnetic fields. The elastic ribs are formed in a constant interval on an inner circumference of the screen portion of the coil separator in order to press and support an outer circumference of the horizontal deflection coil.
Patent KR-20030056515-A (KR)
Title: high-speed frame decoding method
Inventor: KIM MAN JE
IPC: H03M13/09
Filed: 2001-12-28
Abstract: PURPOSE: A high speed frame decoding method is provided which determines the decoding of a transmission unit frame according to an error detection and correction checking. CONSTITUTION: The high speed frame decoding method includes a step of performing a checking for error detection and correction in a length unit of a shorter frame inserted into the whole frame, as to the whole frame of a transmission unit. And the method also includes a step of deciding the decoding of the whole frame in the transmission unit, according to the checking result in the previous step. After the decoding decision, a decoding as to the whole transmission unit frame is performed by replacing frame symbol of a good section with meaningless virtual value. As to 20ms frame transmission unit, a CRC(Cyclic Redundancy Code) for error correction is performed in the unit of 5ms frame(S1,S2). And then it is decided whether to decode 20ms frame transmission unit. After the decoding decision, a decoding as to the 20ms frame transmission unit frame is performed by replacing GOOD 5ms frame symbol with meaningless virtual value. When the above 5ms frame section is a fixed number or above the fixed number(S4,S6), the decoding as to the 20ms frame transmission unit is not performed(S5). When the above 5ms frame section is below the fixed number(S7), the decoding as to the 20ms frame transmission unit is performed after replacing the 5ms frame symbol with the meaningless virtual value 0 (S9).
Patent KR-20030056668-A (KR)
Title: Method for Network Resource Management by Using of LDAP Directory
Inventor: CHO GEON YU
IPC: H04L12/24
Filed: 2001-12-28
Abstract: PURPOSE: A method for managing network resources by using an LDAP(Lightweight Directory Access Protocol) directory is provided to enable a central network manager to manage through the LDAP directory, thereby distributively managing the local network managers without changing previous equipment and providing perfect services according to QoS(Quality of Service) levels. CONSTITUTION: If a user terminal attempts a network use to request a data service to a remote Web server(S41), a local network manager searches network resources of the user terminal by using an LDAP directory received from a central network manager(S42). Whether the user terminal attempts the network use within a permissible range is checked(S43). If so, the local network manger allocates network resources to enable the user terminal to get the data service(S46). If the user terminal attempts the network use by exceeding the permissible range, the local network manager requests the remote Web server and the user terminal to reduce the size of a communication flow sliding window within the permissible range(S44). If the user terminal re-attempts the network use within the permissible range(S45), the local network manager allocates network resources to enable the user terminal to get the data service(S46).
Patent KR-20030058189-A (KR)
Title: module fixing device of thin-type display device
Inventor: KWON O GWAN
IPC: G06F1/16
Filed: 2001-12-29
Abstract: PURPOSE: A device for fixing a module of a slim video display device is provided to fix an LCD module to a module frame and the front surface cabinet easily without using a screw. CONSTITUTION: A module shielding frame(11) wraps a side and the rear of a video display module(12), includes the first latch hole(113) formed at a side surface, and includes the first engaging flap(112) formed at the rear surface. A module fixing frame(10) includes a module movement restriction unit for restricting movement for receiving a side portion of the video display module(12). The module fixing frame(10) includes the second latch hole(105) formed at a side surface corresponded to the first latch hole(113) and the first engaging hole(104) for inserting the first engaging flap(112) formed at the rear surface. The module fixing frame(10) fixes the video display module(12) and the module shielding frame(11) simultaneously. The front cabinet includes a latch(133) which is inserted into the first latch hole(113) and the second latch hole(105).
Patent KR-20010071782-A (KR)
IPC: B32B7/02
Filed: 1998-12-28
Abstract: An electrooptic device (2), and the methods for manufacturing, including a liquid crystal material (12) disposed between electroded flat glass or polymer substrates (4, 20) which have been precoated with a e.g. a chiral smectic surface layer (10, 14) in such way that the surface layer is able to mediate switching of the liquid crystal (12) between different optical states. The chiral smectic surface layer can be a polymer, oligomer or monomer liquid crystal with paraelectric, ferroelectric, ferrielectric or antiferroelectric response, which is insoluble in the liquid crystal used for the bulk (12) between the electroded substrates (4, 20). the switchable surface director enforces a certain orientation of the optic axis in the bulk liquid crystal (12), which can be a conventional non-chiral or chiral nematic or smectic in a twisted or non-twisted configuration.
Patent KR-20010053492-A (KR)
Title: 반사형 액정 디스플레이 장치
IPC: G09F9/00
Filed: 2000-05-12
Abstract: 본 발명의 목적은 넓은 시야각과 바람직한 검은색 뷰(black view)를 얻기 위한 반사형 LCD 장치를 제공하는 것이다. 본 발명에 따른 반사형 LCD 장치는 위상차 필름(지연 필름)과, 액정층, 그리고 입사광을 반사시키는 리플렉터를 포함한다. 반사형 LCD 장치는, 상기 반사광의 복수의 스토크스 파라미터 점들이 푸앵카레 구면 상에 거의 직선으로 정렬(plot)되고, 상기 액정층에 의해 빛의 편광 상태를 나타내어, 평 단면에 보여지도록 하며, 상기 반사광에 대해 상기 액정층과 상기 위상차 필름 사이의 관계는 실질적으로 수학식 c Ret( λ) = λ  θ( λ) 을 만족시키는데, 이 식에서 Ret(λ)는 상기 위상차 필름에서 파장 λ인 빛의 지연을 나타내고; 상기 반사광의 각 스토크스 파라미터 점들이, 상기 푸앵카레 구의 원점과 상기 반사광의 스토크스 파라미터 점들을 포함하는 면에 평행한 다른 면에 투영될 때, 
     θ(λ)는 각 투영된 점들과 상기 원점을 포함하는 상기 푸앵카레 구의 평 단면 측에 수직한 축 사이의 각을 나타내며; c는 상수이다.
Patent KR-20010071856-A (KR)
Title: 보코드형 채널을 통해 ｔｄｄ／ｔｔｙ 서비스를 구축하는방법 및 장치
IPC: H04W28/18
Filed: 1999-07-12
Abstract: 본 발명은 무선 링크를 포함할 수 있는 디지털 원격 통신 시스템에서 보코더 채널을 통해 저활성 통신 서비스를 구축하는 방법 및 장치에 관한 것이다.    일 실시예에서, 원격 통신 시스템이 일단 저활성 통신 신호 (402) 를 수신하면 모든 보코더는 전송의 준비로서 자동으로 최고 속도( full rate) 로 고정된다 (404).    적용 가능한 곳으로, 저활성 통신 신호의 전송 전력은 프레임 에러율을 줄이기 위하여 조정된다 (408).    동적 조정은 전송 동안에 계속해서 일어난다 (412).    원격 통신 시스템은 저활성 통신 신호의 존재를 통지할 장치를 포함한다.
Patent KR-20010079637-A (KR)
IPC: C04B35/58
Filed: 2000-06-23
Abstract: 본 발명은 외부 가열 컨덕터와 일체식 전기 접속면을 구비한 세라믹 핀 가열 소자와 그 제조 방법에 관한 것이다. 제 1 보디는 제 1 전기 저항을 갖는 사출성형 가능한 제 1 세라믹 조성 컴파운드로부터 사출성형되고, 제 2 보디는 컴파운드 보디를 형성하기 위해 상기 제 1 보디에 대해 제 2 전기 저항을 갖는 사출성형 가능한 제 2 세라믹 조성 컴파운드로부터 사출성형된다. 그후, 상기 컴파운드 보디는 소결된다. 세라믹 핀 가열 소자는 외부의 보조 가열 컨덕터가 하우징 및/또는 단자 볼트와 접촉하는 것을 방지하기 위해 소자를 보호(절연)하는 추가 단계 없이 직접적으로 형성된다. 접촉 및/또는 절연 코팅의 두께의 변화에 의한 장착 위치 및/또는 밀봉부에서의 핀의 파손 위험은 최소화된다.
Patent KR-20010073101-A (KR)
Title: 2-하이드록시-4-알콕시페닐 또는 2,4-디하이드록시페닐치환된 1,3,5-트리아진 ｕｖ 흡수제의 제조방법
Inventor: GUPTA RAM B
IPC: C07D251/24
Filed: 1999-09-01
Abstract: 본 발명은 트리아진 화합물을 하나 이상 함유하는 조성물의 신규한 제조방법, 당해 조성물을 형성하기 위한 당해 방법에 사용되는 신규한 화합물 및 형성된 신규한 조성물을 제공한다.
Patent KR-20010075104-A (KR)
Title: 공중 부유 입자로부터 작업자 및/또는 제품을 차단하는방법 및 장치
IPC: F24F9/00
Filed: 1999-09-01
Abstract: 본 발명은 둘 이상의 공간 영역(1, 2)을 분리하고 당해 공간 영역 사이의 공중 부유 입자의 전달을 감소시켜 공중 부유 입자로부터 작업자 및/또는 제품(26)을 차단하는 방법 및 장치에 관한 것이다.  작업자는 제1 공간 영역(1) 내의 적어도 일부에 위치하고 제품(26)은 제2 공간 영역(2) 내에 위치하며, 하나 이상의 정제 공기의 평면 제트(13)를 사용하여 두 영역을 분리한다.  본 발명은 하나 이상의 정제 공기의 저난류 배기 공기 스트림(14)이 하나 이상의 공기 제트(13)에 인접한 적어도 제2 공간 영역(2)에서 발생되고 하나 이상의 공기 제트(13)와 필수적으로 동일한 방향으로 향함을 특징으로 한다.
Patent KR-20010075462-A (KR)
Title: Aluminum composite material having neutron-absorbing ability
IPC: G21F1/08
Filed: 2000-07-27
Abstract: The present invention provides an aluminum composite material having neutron absorbing power that improves the ability to absorb neutrons by increasing the content of B, while also being superior to materials of the prior art in terms of mechanical properties and workability. The aluminum composite material having neutron absorbing power contains in Al or an Al alloy matrix phase B or a B compound having neutron absorbing power in an amount such that the proportion of B is 1.5% by weight or more to 9% by weight or less, and the aluminum composite material has been pressure sintered. <IMAGE>
Patent KR-20010089493-A (KR)
IPC: G02F1/13
Filed: 1999-11-15
Abstract: 본 발명은 화학식 I의 화합물에 관한 것이다. 
     화학식 I 
     
       
     
     상기식에서, 
     R 1 은 하나 이상의 할로겐 원자에 의해 임의로 치환될 수 있고 하나 이상의 인접하지 않은 -CH 2 - 그룹이 -CH=CH-, -O-, -CO-, -COO-, -OOC-, -O-OC-O- 또는 -S-에 의해 임의로 치환될 수 있는 키랄 또는 비키랄, 측쇄 또는 직쇄 C 1-20 알킬 또는 C 1-20 알케닐이며; 
     R 2 는 하나 이상의 할로겐 원자에 의해 임의로 치환될 수 있고 하나 이상의 인접하지 않은 -CH 2 - 그룹이 -CH=CH-, -O-, -CO-, -COO-, -OOC-, -O-OC-O- 또는 -S-에 의해 임의로 치환될 수 있는 키랄 또는 비키랄, 측쇄 또는 직쇄 C 1-20 알콕시,  C 1-20 알케닐옥시, C 1-20 알킬카보닐옥시(알킬-COO-) 또는 C 1-20 알케닐카보닐옥시(알케닐-COO-)이며; 
     MG 1 은 화학식 Ia의 그룹이며; 
     Z 1 은 단일 결합, -COO- 또는 -OOC-, -CH 2 CH 2 -, -CH=CH-, -C≡C-, -OCH 2 - 또는 -CH 2 O-이며; 
     MG 2 는 할로겐, 시아노, 니트로 또는 R 1 그룹에 의해 임의로 치환될 수 있고 하나 이상의 인접하지 않은 -CH- 그룹이 질소에 의해 치환될 수 있는 1,4-페닐렌 그룹이다. 
     화학식 Ia 
     -(A-Z 2 ) n -(B-Z 3 ) m - 
     상기식에서, 
     A 및 B는 서로 독립적으로 할로겐, 시아노, 니트로 또는 R 1 그룹에 의해 임의로 치환될 수 있고 하나 이상의 인접하지 않은 -CH- 또는 -CH 2 - 그룹이 각각 질소 또는 산소에 의해 임의로 치환될 수 있는 1,4-페닐렌 또는 1,4-사이클로헥실렌 그룹이며, 
     Z 2 및 Z 3 은 서로 독립적으로 단일 결합, -COO- 또는 -OOC-, -CH 2 CH 2 -, -CH=CH-, -C≡C-, -OCH 2 - 또는 -CH 2 O-이고, 
     m 및 n은 각각 독립적으로 0 또는 1이다. 
     당해 화합물은 강유전성 액정 장치의 제조시 유용하다.
Patent KR-20010101289-A (KR)
Title: 일회용 기저귀를 감싸기 위한 측면 신축성 패널
IPC: A61F13/15
Filed: 1999-11-22
Abstract: 본 발명은 성인용, 유아 및 소아용 1회용 팬티를 제공한다.  이 팬티는 신체 배설물이 적재된 팬티를 둘러쌀 수 있는 충분한 너비의 신축성 측면 패널을 가지므로 폐기용 주머니를 형성할 수 있다.
Patent KR-20010108152-A (KR)
IPC: B21D41/02
Filed: 2000-11-21
Abstract: The invention concerns a method comprising the following steps: placing a tube (6) in an opening matrix (2) having an impression (22) corresponding to the desired final external shape; inserting the end (16) of the tube into a cavity (12) of a shaping component (26), said cavity having a base (32), a side wall with adapted shape, and an opening (30) opposite the base (32); pressing the end (16) of the tube against the base (32) of the cavity (12), leaving a clearance between the opening of the cavity and the matrix; applying an essentially axial force on the end (16) of the tube, the zone of application of the force rotating about a longitudinal axis (14) of the tube thereby causing gradual deformation of the tube; withdrawing the end of the deformed tube outside the cavity (12) of the shaping component and outside the matrix (2).
Patent KR-20020021628-A (KR)
Title: Deformable building sheet batten
IPC: E04F13/08
Filed: 2000-04-14
Abstract: A batten ( 100 ) for mounting cladding sheets to a wall or frame, said batten comprising an elongate channel member having a pair of spaced apart side walls ( 120, 140 ) joined by an intermediate web ( 110 ), and a corresponding pair of mounting flanges ( 124, 145 ) spaced outwardly from the web ( 110 ) and extending laterally from the side walls ( 120, 140 ), adapted for connection to the cladding sheets ( 300 ), and the batten ( 100 ) being configured such that stress applied to the cladding sheets ( 300 ) in use results in preferential deformation of the batten.
Patent KR-20020006709-A (KR)
IPC: H04K1/00
Filed: 2000-04-28
Abstract: 본 발명은 인코딩된 디지털 오디오 데이터를 처리하는 장치 및 방법에 관한 것이며, 디지털 오디오 데이터는 복수의 인코딩 포맷 중 하나를 사용하여 인코딩된다. 본 발명은, 특정 유형의 데이터 저장 매체 중 다른 하나로부터 컴팩트플래쉬 메모리 카드와 같은 고유 식별자를 갖는 특정 유형의 데이터 저장 매체로 복사되는 인코딩된 디지털 오디오 데이터가 본 발명에 따라 오디오 재생 디바이스에서 플레이하지 못하게 한다. 본 발명에 따라, 인코딩된 오디오 데이터 파일은, 데이터 저장 디바이스와 연관된 고유 식별자 및 제 2 키를 사용하여 암호화되고, 연관된 디코더 파일은 제 1 키를 사용하여 암호화되고, 암호화된 데이터 및 디코더 파일은 데이터 저장 디바이스 상에 저장된다. 재생할 동안, 데이터 신호 프로세서는 제 2 키에 응답하여 오디오 데이터 파일을 암호해독하고, 제 1 키에 응답하여 디코더 파일을 암호해독한다. 유리하게도, 제 2 키는 고유 식별자 및 제 3 키에 응답하여 생성된다. 데이터 저장 디바이스에 저장된 오디오 데이터 파일을 암호화하고 플레이하는 이 방법은, 오디오 데이터 파일이 동일한 유형의 데이터 저장 디바이스 중 다른 하나로부터 복사되었을 때, 발명에 따른 장치가 고유 식별자를 갖는 특정 유형의 데이터 저장 디바이스로부터 오디오 데이터 파일을 재생하지 못하게 한다.
Patent KR-20010113935-A (KR)
Title: Improvements in or relating to object location
Inventor: RICKARD DAVID CHARLES
IPC: G01S5/00
Filed: 2000-05-11
Abstract: Described herein is an object located system for locating an object (10) which produces identifying signals. The system comprises a plurality of receivers sites (22, 24, 26, 28) arranged in an array (20) for receiving signals from the object (10) and for receiving a common time reference in the form signals received from a global navigation system (50). The array (20) comprises a reference receiver site (22) and three auxiliary receiver sites (24, 26, 28), the auxiliary sites being connected to the reference site by data links (34, 36, 38). Each receiver site (22, 24, 26, 28) receives signals (42, 44, 46, 48) from the object (10) and timing control signals (52, 54, 56, 58) from a global navigation system (50). Each site determines a time difference between the receipt of the object signals and the timing signals, the auxiliary sites (24, 26, 28) providing data signals on data links (34, 36, 38) to the reference site (22) where the location of the object (10) is determined.
Patent KR-20020005043-A (KR)
Title: Antenna diversity arrangement
IPC: H04B7/06
Filed: 2001-03-12
Abstract: An antenna diversity arrangement (200) comprises a plurality of antennas (204a, 204b) capable of forming a plurality of antenna beams. The amplitude and phase relationships between the signals driving each of the antennas (204a, 204b) are first determined for an arrangement where each antenna is replaced by a point source. The results of this analysis are then transformed by reference to the characteristics of the real antenna arrangement (200) to determine appropriate driving signals.The resultant antenna diversity arrangements (200) can have antennas (204a, 204b) located arbitrarily close to one another with near-zero correlation between any pair of the antenna beams, thereby providing a compact and effective arrangement.
Patent KR-20020010716-A (KR)
IPC: A61P13/12
Filed: 2000-06-20
Abstract: 화학식I 
       
     
     
       
     
     상기 화학식을 갖는 화합물, 이런 화합물의 제약학적으로 제형, 그리고 중추신경계 또는 말초신경계의 도파민-관련 장애로 인해 고통을 겪는 환자를 치료하는데 이런 화합물을 이용하는 방법을 개시한다.  상기 화합물은 파킨슨씨병을 치료하고, 인식작용을 향상시키고, 기억을 향상시키고, 정신분열증의 네거티브 증상을 개선하고, 집중력-결핍 과다활성 질환 및 관련된 발달장애를 개선하고, 약물남용을 치료하고, 도파민 수용체 점유의 변화가 기관 관류, 심혈관 기능, 선택된 내분비물질과 면역계 장애를 비롯한 생리기능에 영향을 주는 다양한 말초 질환을 치료하는데 유용할 것으로 예상된다.
Patent KR-20020019480-A (KR)
IPC: B01J7/00
Filed: 2000-07-07
Abstract: 다음의 각 성분을 함유하고, 발열량이 4500J/g이상인 자동발화성 인핸서제 조성물. 
     (a) 5-아미노테트라졸 
     (b) 금속분말 
     (c) 질산칼룸, 질산나트륨 및 질산스트론튬으로 이루어진 군으로부터 선택되는 적어도 1종이상 
     (d) 3산화몰리브덴 
     더욱, 상기 자동발화성 인핸서 조성물의 100g당의 발생가스몰수는 0.5mol이상 2.0mol이하이다.
Patent KR-20030058809-A (KR)
Title: A basketball ball useing of a hammer
Inventor: JUNG DONG MAN
IPC: A63F9/02
Filed: 2002-01-02
Abstract: PURPOSE: A basketball game machine using a hammer is provided to make the game more interesting by making a basketball move forward by striking the hammer. CONSTITUTION: A basketball goal post(3) with a sensing portion(2) is formed at one side of a main body(1) and a rotating portion is formed on the other side thereof. A basketball fixing portion for mounting a basketball is formed on one side of the rotating portion and a hammer stroke portion is formed on the other side thereof. A hinge is fixed between the basketball fixing portion and the stroke portion. A rule sheet portion is formed on a side face of the basketball fixing portion. A switch(9) is formed on the top side of the stroke portion. A hammer(10) is disposed on a side face of the switch(9).
Patent KR-20030059632-A (KR)
Title: Synchronous mirror delay circuit with adjustable lock range
Inventor: KIM NAM SEOK
IPC: H03L7/081
Filed: 2002-01-03
Abstract: PURPOSE: A synchronous mirror delay circuit having an adjustable locking range is provided to adjust a synchronous range of a synchronous mirror delay circuit without increasing a size of a jitter and the number of delay units. CONSTITUTION: A clock buffer circuit(110) buffers an external clock signal and generates a reference clock signal. A delay monitor circuit(120) delays the reference clock signal. A forward delay array(130) sequentially delays an output clock signal of the delay monitor circuit(120) in the forward direction. A mirror control circuit(140) detects a clock signal of the delay clock signals synchronized with the reference clock signal. A backward delay array(150) delays the delay clock signal backward detected by the mirror control circuit(140). A clock driver(170) receives the output clock signal of the backward delay array(150) and generates an internal clock signal. A locking range control circuit(180) detects which one of the delay clock signals is synchronized with the reference clock signal.
Patent KR-20030061022-A (KR)
Inventor: HONG SEOK GI
IPC: A47B23/00
Filed: 2002-01-07
Abstract: PURPOSE: Provided is a removable reading desk for various use which keeps some distances between the desk and the reading desk by adjusting height of an L-character axis so that it helps to secure reserve space in the desk. CONSTITUTION: The removable reading desk for various use is characterized by comprising the parts of: three reading desks(6) which are fixed at the L-character axis(1); an electric stand(8) which is attached to the reading desk to protect eyesight; the L-character axis which adjusts height of the reading desk when a rotating screw of an adjusting nipper(3) is rotated in a clockwise way; and a fixing arm(9) which is largely composed of three parts to fix the adjusting nipper.
Patent KR-20020023337-A (KR)
Title: The making methods of the cigars or the cigarettes of reducing the tobacco-leaves
Inventor: KIM JIN KYUNG
IPC: A24B15/16
Filed: 2002-01-17
Abstract: PURPOSE: Provided is a method for producing tobacco for reducing tobacco leaves, whereby a user can withstand while maintaining the tobacco sucking habit without tobacco leaves. CONSTITUTION: The method for producing tobacco for reducing tobacco leaves comprises gradually reducing the amount of tobacco leaves contained in a cigaret. At first, the cigaret is mostly composed of tobacco leaves. The amount of tobacco leaves is reduced and instead of the reduced tobacco leaves, other materials are substituted. Examples of the substituted materials include dried vegetable, dried tea leaves, dried flower leaves, dried tree leaves such as dried acacia leaves, dried Eucommiaceae leaves, dried mulberry leaves, dried pine leaves, dried ginkgo leaves, dried leaves of grass, dried ginseng chips, dried fruit of chinese matrimony vine, dried cotton or paper, or starch or dried fruits.
Patent KR-20020062816-A (KR)
Title: Transceiver with means for error management
Inventor: MUTH MATTHIAS
IPC: G06F13/38
Filed: 2002-01-21
Abstract: PURPOSE: A transceiver for a serial data bus is provided, which solves an error condition generated in a receiving line between the transceiver and a protocol controller, and thus prevents data from being stopped in this error condition. CONSTITUTION: The transceiver for a serial data bus is connected to a protocol controller managing a data bus protocol through a transmission line(TXD) and a receiving line(RXD), and the transceiver is connected to a line of a data bus. The transceiver includes an error management unit(1), which supplies an error signal when the error management unit recognizes that the data bus line is active and the receiving line is inactive at the same time. The transceiver does not act in an active state on the data bus, by the error signal.
Patent KR-20030064100-A (KR)
Title: Wireless local area network access point using public computer device and method for emboding the same
Inventor: CHOI NAK HUN
IPC: H04L12/46
Filed: 2002-01-25
Abstract: PURPOSE: A wireless LAN access point using a universal computer device is provided to execute a bridging operation for connecting with cable networks of user computers by being wirelessly connected to the user computers, thereby carrying out an operation of an existing access point. CONSTITUTION: A wireless LAN card(140) has a wireless MAC(141). A cable LAN card(150) has a cable MAC(151). A program unit(110) has a predetermined access point program to carry out access authentication, bridging functions, cell formation, and roaming functions. A network connector(160) sets predetermined Internet access information, and performs a DHCP(Dynamic Host Configuration Protocol) and an NAT(Network Address Translation) function to assign an IP to a user computer. A network authentication information storage(120) stores a predetermined SSID(Service Set Identifier) and WEP(Wired Equivalency Privacy) key information while authenticating access of the user computer. A filtering information storage(130) stores predetermined transmission path information of wired/wireless MAC frame data. An Internet access information storage(170) stores the Internet access information.
Patent KR-20020064195-A (KR)
Title: Liquid ejecting head, suction recovering method, head cartridge and image forming apparatus
Inventor: CHIKUMA TOSHIYUKI
IPC: B41J2/14
Filed: 2002-01-31
Abstract: PURPOSE: A liquid ejecting head, a suction recovering method, a head cartridge and an image forming apparatus are provided to control the uniform amount of the liquid sucked through independent discharge port groups and to suppress the unnecessary consumption of liquid. CONSTITUTION: A liquid ejection head(13) comprises a single liquid supplying port to which a liquid is supplied, a plurality of liquid supplying passages having one end in communication with the liquid supplying port, a plurality of common liquid chambers in communication with the other ends of the liquid supplying passages, and a plurality of ejection port groups in communication with the common liquid chambers via liquid channels and from which liquid droplets are ejected. A cross sectional area or length of the liquid supplying passage in communication with the ejection port group having a larger sum of opening areas of the ejection ports is set smaller or longer respectively than that of the liquid supplying passage that is in communication with the ejection port group having a smaller sum of opening areas of the ejection ports.
Patent KR-20030067184-A (KR)
Title: Liquid crystal optical switching device
Inventor: LEE SEONG EUN
IPC: G02F1/00
Filed: 2002-02-07
Abstract: PURPOSE: A liquid crystal optical switch element is provided to simply manufacture the optical switch element and mass-produce the optical switch elements by applying a cholesteric liquid crystal film. CONSTITUTION: A cholesteric liquid crystal layer splits light into right circularly polarized light and left circularly polarized light for reflecting one wave while transmitting the other wave. A quarter-wave plate is arranged at a liquid cell for converting the two waves into linearly polarized light. The converted waves are modulated through the liquid crystal cell according to voltage application. The modulated lights are combined by being passed through the cholesteric liquid crystal layer.