baber/WOPTO huggingface dataset:
Patent KR-20020041000-A (KR)
Title: Connection method for buffer control signal of point processor
Inventor: KIM DONG UK
IPC: H04L12/43
Filed: 2000-11-25
Abstract: PURPOSE: A method for connecting a buffer control signal of a point processor is provided to prevent transmission loss in a synchronous optical transmission device by connecting the buffer control signal according to a channel sequence and processing a pointer of an AU3-Xc signal as to an X having a random value. CONSTITUTION: Buffer control signals outputted from elastic buffer control units connect according to a channel sequence for using a control signal inputted from an upper channel so that it is possible to receive an AU3-Xc signal as to an X having a random value or outputting the control signal inputted from the upper channel to a lower channel so that it is possible to use the control channel in the lower channel. It is possible to use the AU3-Xc signal in a random channel allocation having a successive channel through the buffer control signal.
Patent KR-20020046345-A (KR)
Title: Evaporative condensing unit
Inventor: KIM SEONG MUN
IPC: F25B1/00
Filed: 2000-12-12
Abstract: PURPOSE: An evaporative integral condensing unit is provided to improve cooling efficiency and to reduce power consumption. CONSTITUTION: A condenser comprises a casing(49); an exhaust fan(41) installed on a ceiling of the casing; a water drop removing plate(42) installed under the exhaust fan to prevent discharge of water drop by the exhaust fan; a sprinkler(43) installed under the water drop removing plate to spray water downward; a refrigerant coil(47) installed under the sprinkler and having one end, fluidically connected with a side of the casing for high-temperature high-pressure refrigerant gas, compressed in a refrigerant compressor(10) to flow in, and the other end through which low-temperature high-pressure refrigerant fluid is discharged; a water tank(44) installed under the refrigerant coil; a supplementary water supply device(48) installed on the water tank; and a coolant circulation device(45) circulating coolant by connecting the sprinkler and the water tank.
Patent KR-20020050404-A (KR)
Title: Apparatus and Method of Data Management Using Bar-cord Information Transit for Mobile Telephone
Inventor: KIM JUN UNG
IPC: H04B1/40
Filed: 2000-12-21
Abstract: PURPOSE: A method and an apparatus for processing data through the transmission of the bar code information of a mobile terminal are provided to transmit and process a large amount of data within a short time by making data, such as a generic document, into bar code information, using a mobile terminal having a digital camera as a bar code scanner, and transmitting the bar-coded data. CONSTITUTION: A user selects a bar code input mode using his/her mobile terminal(10). Then the user captures bar-coded data through a digital camera installed in the mobile terminal(20). If input is successfully completed(30), the CPU of the mobile terminal stores the captured bar-coded data in the flash memory of the mobile terminal(40). In case that the mobile terminal is connected directly to an external interface, such as a Bluetooth, an RS232, or an IrDA(Infrared Data Association), etc., the CPU receives bard code information from a personal computer, etc., through the external interface and deciphers it(50,60,90). If the mobile terminal is not connected directly with the external interface, the CPU transmits the captured bar-coded data to a mobile network(60,70).
Patent KR-20020052591-A (KR)
Title: Semiconductor package
Inventor: HYUN JONG HAE
IPC: H01L23/12
Filed: 2000-12-26
Abstract: PURPOSE: A semiconductor package is provided to improve reliability of solder joint between a semiconductor package and a mother board by forming a dummy solder bar. CONSTITUTION: An insulating resin frame(41) is formed on four sides of a sealing portion and a printed circuit board. A dummy solder bar(40) is formed by projecting a solder bar(42) from a lower end of the frame(41). The frame(41) can be formed by using a conductive solder. A lower end portion of the solder bar(42) is fixed to a mother board. A semiconductor package(101) is inserted into the dummy solder bar(40). Or the dummy solder bar(40) is combined with the semiconductor package(101) by inserting adhesive into a side of the semiconductor package(101), namely outer sides of a sealing portion and a printed circuit board or an inner side of the dummy solder bar(40).
Patent KR-20020052731-A (KR)
Title: Apparatus for removing the skull from the cover of the tundish
Inventor: JUN JONG GIL
IPC: B22D11/10
Filed: 2000-12-26
Abstract: PURPOSE: An apparatus for removing skull from the cover of a tundish is provided to easily and safely separate skull adhered onto the cover of the tundish when pouring molten steel from a ladle into the tundish without facility damage. CONSTITUTION: In an apparatus for removing skull(21) adhered to the lower part of an argon box type tundish cover(11) from the cover, the apparatus for removing skull from the cover of a tundish comprises a pair of supports which are removably mounted on the upper part of the cover, each of which are connected by an intermediate connection member, and in which a penetration hole having a certain size is formed on the central part of the intermediate connection member; a lever rod(25) removably mounted on the intermediate connection member of the supports; and a driving means(24) driving the lever rod(25) so that the lever rod(25) penetrates the penetration hole, wherein a fixed plate(31) is installed at the lower part of the supports, a locking loop(26) is axially supported onto the fixed plate(31) so that the locking loop(26) is laterally slid, and the locking loop(26) is rotated on the fixed plate(31) around the axially supported part.
Patent KR-20020052880-A (KR)
Title: Method For Manufacturing Carbonitriding Bearing Steel
Inventor: HAN SEUNG GYU
IPC: C22C38/18
Filed: 2000-12-26
Abstract: PURPOSE: A method for manufacturing bearing steel having high abrasion resistance and good fatigue property for carbonitriding is provided. CONSTITUTION: The method includes the steps of preparing a molten steel comprising C 0.30-0.50 wt%, Si 0.30-0.50 wt%, Mn 0.90-1.30 wt%, P 0.020 wt% or less, S 0.020 wt% or less, Cr 1.0-2.0 wt%, V 0.08-0.40 wt%, Al 0.010-0.050 wt%, O 0.0015 wt% or less, N 0.010-0.020 wt%, Ti 0.004 wt% or less, a balance of Fe and other inevitable impurities; continuously casting the molten steel into billet or bloom; reheating the billet in the temperature range of 950 to 1250°C followed by hot rolling; and coiling it in the temperature range of 750 to 950°C.
Patent KR-20020005952-A (KR)
Title: Bidirectional check valve for hydraulic system
Inventor: HAMBLY HUGH
IPC: F16K15/00
Filed: 2000-12-27
Abstract: PURPOSE: A bi-directional check valve for a hydraulic system is provided to shut off flowing of fluids when fluid pressure of one direction goes down under an estimated value. CONSTITUTION: A valve body has an openings(116), a further opening(117) and a passage(115) connecting the opening and the further opening. A poppet(106) is disposed within the passage of the valve body, and a spring(105) is coupled to the poppet. A further poppet is disposed within the passage formed in the first poppet, and a further spring is coupled to the poppet and to the further poppet. When fluid passing through the opening gives to the poppet force that is greater than the spring force, the further portion of the outer surface of the poppet is directed away from the further portion of the wall of the passage. The opening permits the fluid to flow from the opening through a channel toward another opening of the valve body. When fluid passing through the further opening gives on the further poppet force that is greater than the further spring force, the further portion of the outer surface of the further poppet is directed away from the further opening to open a further channel in the poppet. The opening permits the fluid to flow from the further opening in the valve body through the further channel, at least one opening in the further poppet, a further passage in the further poppet, a further opening in the further poppet and an opening in the poppet to the opening of the valve body.
Patent KR-20020053279-A (KR)
Title: Air Gun for Test Eddy Current
Inventor: JANG JI EUN
IPC: G01R19/00
Filed: 2000-12-27
Abstract: PURPOSE: An air gun for inspecting an eddy current is provided to enhance the reliability of the inspection by uniformly maintaining the reverse moving velocity of an inspection member inserted in a heat exchanger tube. CONSTITUTION: The air gun for inspecting an eddy current makes the inspection member move in order to inspect an eddy current generated from an interior of a heat exchanger tube. A handle body(56) has a handle housing(52) of which a driving shaft rotates with the aid of an air pressure in the handle housing(52). A loading member(102) is positioned onto an upper portion of the handle body(56). A drawing body(64) having the first and the second drawing members(60,62) is mounted onto the center upper surface of the loading member(102) in order to move a cable in a reverse direction. An injection body(68) has an injection nozzle(66) for injecting air with receiving the cable is formed at one side of the drawing body(64). A cable guide body(70) for smoothly transferring the cable is formed at the other side of the drawing body(64).
Patent KR-20020058875-A (KR)
Title: A jig for fixing connection lod
Inventor: LEE JONG SEON
IPC: G01M15/00
Filed: 2000-12-30
Abstract: PURPOSE: A fixing device for fatigue test of connecting rod is provided to apply forcible fitting using bolt coupling. CONSTITUTION: A fixing device(300) includes a small end fixing device(100) having a first fixing body(10) joined to a load cell axis(11) and having a first installation hole(13) and a second installation hole(15) formed thereon to face each other, a first hollow body(20) inserted to the first installation hole, a second hollow body(30) inserted to the second installation hole, a first connecting body(40) placed between the first installation hole and the second installation hole so that the first hollow body and the second hollow body are inserted to both sides thereof and a connecting member(50) integrally connecting the first hollow body, the second hollow body and the first connecting body; and a big end fixing device(200) having a second fixing body(110) joined to a piston axis(111) and having a third installation hole(120) and a fourth installation hole(130) formed thereon to face each other, a third hollow body(140) inserted to the third installation hole, a fourth hollow body(150) inserted to the fourth installation hole, a second connecting body(160) placed between the third installation hole and the fourth installation hole so that the third hollow body and the fourth hollow body are inserted to both sides thereof and a connecting member(170) integrally connecting the third hollow body, the fourth hollow body and the second connecting body.
Patent KR-20010035137-A (KR)
Title: Server system for multiple web camera and method for controlling multiple web camera and processing video data using it
Inventor: KIM JEONG
IPC: H04N7/18
Filed: 2000-12-30
Abstract: PURPOSE: A multiple web camera server system and a method for controlling a multiple web camera and processing image using the same are provided to extend the number of input cameras as they can be seen in a screen. CONSTITUTION: Initial image data is input through a camera. The noise of the input image data is removed through a high-pass filter and transmitted to a multiplexor part for multichannel support. The multiplexor part outputs data of selected image channel in a plurality of image channels to a video decoder. The video decoder converts the image data into parallel data through an inner analog to digital converter and transmits the converted data to a PC through a PCI slot. The transmitted data is compressed in JPEG format.
Patent KR-20010021500-A (KR)
Title: 압력 센서
IPC: G01L9/00
Filed: 1998-06-26
Abstract: 압력 센서는 압력이 감지될 유체를 수용하기 위한 하우징과, 전극 조립체 및 하우징내의 가변 커패시터를 형성하기 위해 배치되는 격판을 포함한다.  일 실시예에서, 전극 조립체는 전도성 전극을 가진 유전체 디스크와, 격판에 면하여 디스크의 표면상에 형성되는 스탠드오프를 갖는다.  스페이서 링은 스페이서 링의 두께가 전극 조립체의 전극과 격판 사이의 간격을 결정하도록 스탠드오프와 격판 사이에 제공된다.  다른 실시예에서, 전극 조립체는 하우징과 전극의 하부 표면이 서로 동일 평면에 있도록 하우징과 전극을 포함하는 일체식 단일 유닛이다.  이 실시예에서, 스페이서는 링의 두께가 간격의 길이를 결정하도록 하우징과 격판사이에 있다.
Patent KR-20010074425-A (KR)
Title: 곡면을 갖는 능동 및 수동 홀로그래픽 광학 소자
IPC: G03H1/24
Filed: 1999-01-11
Abstract: 곡면 소자[예를 들어, 전구(16), 장식품, 또는 광관]은 회절 격자(예를 들어, 홀로그래픽 회절 격자 또는 기계에 의한 회절 격자)로 상기 소자의 외부 또는 내부 면의 적어도 일부가 덮여 있고, 이로 인해 상기 회절 격자가 빛을 회절 시켜 관찰자에게 색을 발산한다.  회절 격자는 곡면에 부착되는 홀로그래픽 광학 소자(HOE) 또는 곡면에 엠보싱 처리되는 회절 홀로그래픽 광학 무늬(HOP)의 형태를 취할 수 있다.
Patent KR-20010034376-A (KR)
Title: 폴리이소프렌-폴리부타디엔 블록 공중합체의 최소체류시간 수소화 방법
IPC: C08L53/00
Filed: 1999-01-29
Abstract: 본 발명은 (a)부타디엔 블록(들)과 이소프렌 블록(들)을 수소화 촉매로 원하는 잔여 불포화도로 수소화하는 데 필요한 시간이 실질적으로 동일하도록 원하는 중합체 분자량 및 이소프렌 블록(들)과 부타디엔 블록(들)의 원하는 잔여 불포화도를 선택하고 부타디엔 블록(들)과 이소프렌 블록(들)의 분자량을 측정하며; (b)이소프렌과 부타디엔을 음이온 중합하여 (a)단계에서 측정된 블록 공중합체를 형성한 다음; (c)부타디엔 블록(들) 및/또는 이소프렌 블록(들)이 원하는 잔여 불포화도에 이를 때까지 블록 공중합체를 선택적으로 수소화함을 포함하는, 적어도 하나의 부타디엔 중합체 블록과 적어도 하나의 이소프렌 중합체 블록을 가지는 블록 공중합체를 이소프렌 블록과 부타디엔 블록을 상이한 속도로 수소화하는 수소화 촉매로 선택적으로 수소화하는 방법에 관한 것이다.
Patent KR-20010040613-A (KR)
IPC: G11B7/24085
Filed: 1999-12-07
Abstract: In an optical recording medium having a track including plural pits formed based on first data to be recorded and lands defined between neighboring pits, these pits are recorded as they are deformed based on the second data. The first and second data are synthesized and reproduced to realize audio reproduction with a broad frequency range. Moreover, the first data are adapted to be reproducible by a customary disc reproduction device. The reproduction of the first data is controlled by the second data to protect recorded data. <IMAGE>
Patent KR-20010042017-A (KR)
Title: 무선 데이터 통신시스템에서 링크-효율성을 기반으로 한스케쥴링
IPC: H04W76/04
Filed: 1999-03-09
Abstract: LLC 프레임들의 스케쥴링을 위해 교환시스템(SS)부(12)에 셀내 패킷 데이터 서비스 무선링크들의 전체 숫자에 대한 정보와, 각 사용자에 대한 링크 당 대역폭을 포함하는 스케쥴링-관련 정보를 기지국(BSS)부(14)가 제공하도록 하는, 패킷전송을 스케쥴링하는 시스템과 방법이 설명된다. 따라스, SS(12)는 필요한 링크사용을 결정할 수 있어서, 무선링크를 통한 전송을 위해 SS(12)가 제출하는 각 데이터패킷에 대한 전송시간을 결정할 수 있다. 이와 같이, SS(12)는 각 데이터패킷에 대해 모든 단말-대-단말 QoS 수량을 제어할 수 있고, 또한 BSS(14)로 LLC 프레임들의 SS 스케쥴링에 의해 상기 수량들이 얼마나 영향을 받을지를 제어할 수 있다. 이러한 방식으로 SS는 QoS 협정들이 사용자와 어떻게 충족될지를 완벽히 제어할 수 있다.
Patent KR-20010034630-A (KR)
Title: 백신 조성물
IPC: A61K39/295
Filed: 1999-03-22
Abstract: 본 발명은  대부분 면역원성인 각각의 항원을 알루미늄 기재 보조제에 최대로 안정적인 흡착을 유지시킬 수 있는 반면, Hib 간섭을 피할 수 있도록 사용직전 제조된 또는 액체 Hib/DTPa 혼합 백신을 제조하는 방법에 관한 것이다.  이 방법에 있어서, 본 발명의 혼합 백신중의 백일해 항원은 이들의 대부분 효능있는 형태로 안정적으로 유지된다.
Patent KR-20010042947-A (KR)
IPC: H01L31/12
Filed: 1999-04-19
Abstract: A device in such an appliance as a mobile telephone (2), a lap top computer (1) or the like for wireless data transmission by means of IR light between such appliances comprises means for transmitting IR light and means for receiving IR light. Mainly for reducing the space requirement for the device the means for transmitting and receiving are combined into one LED with a single lens (8), a so called transceiver.
Patent KR-20010025063-A (KR)
Title: 기판 이송 셔틀
IPC: C03B25/08
Filed: 1999-05-14
Abstract: 본 발명은 기판 이송용 장치 및 방법을 제공한다. 본 발명의 시스템에서, 적어도 하나의 제 1 및 제2챔버가 제공된다.  일반적으로, 제 1챔버는 로드 록이고 제 2챔버는 처리 챔버이다.  제 1챔버는 로드 록 챔버이고 제 2챔버를 처리 챔버이다.  기판 이송 셔틀이 제공되며, 상기 기판 이송 셔틀은 제 1챔버의 제 1위치 및 제 2챔버의 제 2위치사이에서 가이드 롤러에 의하여 한정된 선형 경로를 따라 이동가능한다.  이 방식에서, 기판은 제 1챔버 및 제 2챔버사이에서 전방향과 후방향으로 이송될 수 있다.  기판 이송 셔틀은 챔버중 하나의 지지부를 하강된 위치에서 중간 위치로 이동시킴으로써 기판이 퇴출되도록 하고 그후에 기판 이송 셔틀이 챔버로부터 퇴출되도록 구성된다.
Patent KR-20010043831-A (KR)
Title: 칼슘 채널의 알파2델타 서브유닛에 대한 친화력이 있는구조적으로 한정된 아미노산 화합물
IPC: C07C229/46
Filed: 1999-04-28
Abstract: 하기 화학식 I 내지 VIII의 신규 치환된 아미노산이 개시되어 있으며 간질, 실신 발작, 운동기능감소증, 두개골 장애, 신경퇴행성 장애, 우울증, 불안증, 공황, 통증 및 신경병리학적 장애의 치료에서 약제로서 유용하다.  제조 방법 및 제조에 유용한 중간물이 또한 개시되어 있다.
Patent KR-20010034914-A (KR)
Title: 알콕시화된 폴리알킬렌이민 분산제
IPC: C11D3/37
Filed: 1999-06-12
Abstract: 본 발명은 하기 화학식 I을 갖는 알콕시화된 폴리알킬렌이민 토양 분산제에 관한 것이다. 
     화학식 I 
     
       
     
     상기 식 중, R은 C 2 -C 6 직선형 알킬렌, C 3 -C 6 분지형 알킬렌 및 그 혼합물이며, B는 분지에 의해 확장되고, E는 식 -(R 1 O) m (R 2 O) n R 3 를 갖는 알킬렌 옥시 유닛으로서, R 1 은 1,2-프로필렌, 1,2-부틸렌 및 그 혼합물이며, R 2 는 에틸렌이고, R 3 는 수소, C 1 -C 4 알킬 및 그 혼합물이고, m은 약 1 내지 약 10이며, n은 약 10 내지 약 40이고, w, x 및 y는 각각 독립적으로 약 4 내지 약 200이며, 단 -(R 1 O) 유닛은 -(R 2 O) 유닛이 부착되기 전에 1개 이상 골격에 부착되고, m + n은 12 이상이어야 한다.
Patent KR-20020063663-A (KR)
Title: Method and apparatus for controlling power for Instant Heating Roller
Inventor: CHO DEOK HYEON
IPC: G03G15/20
Filed: 2001-01-30
Abstract: PURPOSE: A power controlling method for an IHR(Instant Heating Roller) and a device thereof are provided to supply stable power to the IHR, regardless of a level or a frequency of a source voltage applied from an external, and to allow the IHR to reach a fixed target temperature rapidly while minimizing the generation of overshoot. CONSTITUTION: Whether a level of a source voltage supplied from an external is a first predetermined level or a second predetermined level larger than the first level is decided(10). If the source voltage level is the first level, the source voltage is supplied to a heating resistor as a roller voltage at a second predetermined time interval, until the temperature of the heating resistor measured at a first predetermined time interval reaches a predetermined fixed target temperature(12). If the source voltage level is the second level, the source voltage is supplied to the heating resistor as the roller voltage only during a third predetermined time interval every half cycle of the source voltage, until the temperature of the heating resistor measured at the first predetermined time interval reaches the predetermined fixed target temperature(14). And as the temperature of the heating resistor approaches the predetermined fixed target temperature, the step 12 increases the second predetermined time and the step 14 reduces the third predetermined time, wherein the first predetermined time is over the second predetermined time.
Patent KR-20010035426-A (KR)
Title: On-line vouch system providing real-name personal information and method for issuing a reference via the same
Inventor: RYANG BYUNG SOO
IPC: G06F15/00
Filed: 2001-02-13
Abstract: PURPOSE: An on-line security system for providing real-name personal information and a guarantee issuing method thereof are provided to strictly verify personal information inputted, and to secure the personal information to the third party by exchanging information with a person who inputs personal information in a question/response way using a personal information certification database. CONSTITUTION: A person who wants to become a member connects to a guarantee service providing server, and inputs personal information through a communication terminal(S100). The guarantee service providing server outputs question data stored in a personal information certification database, and puts a question(S110). The person transmits a response to the guarantee service providing server through the communication terminal(S120). The server compares the response inputted with the data stored in the database or items which the person inputs(S130). In case that the items is true, the server gives an ID to the person, and secures reliability of the personal information(S140).
Patent KR-20010072672-A (KR)
Title: A fur neckpiece and a method of manufacturing the same
Inventor: LEE JUNG HO
IPC: A41D23/00
Filed: 2001-02-14
Abstract: PURPOSE: A fur comforter and a method for manufacturing thereof are provided to improve the quality by causing the plentiful feeling with arranging the fur unit members and to reduce the cost of manufacturing by using the fur unit members of much smaller area. CONSTITUTION: The fur comforter(2) and the method for manufacturing thereof include the floor materials(4) and the fur unit members(6). The floor materials(4) are composed of the fur, the textiles or the knitted work. The fur unit members(6) are stuck along the circumference of the floor materials(4). An end portion of the fur unit members(6) is stuck on the back of the floor materials(4) and an opposite end portion of that is stuck on the front of the floor materials(4). The fur unit members(6) are manufactured by cutting the fur materials of the animals thinly.
Patent KR-20020072982-A (KR)
Title: Stepper with shutter abnormality sensing function
Inventor: JUNG UI UNG
IPC: H01L21/027
Filed: 2001-03-14
Abstract: PURPOSE: A stepper for sensing an error of a shutter is provided to prevent efficiently a process error due to a noise signal included in an output signal of the shutter. CONSTITUTION: A stepper is formed with a shutter drive unit(100), a shutter(120), a pulse counter unit(140), a shutter error sense unit(160), and an alarm generation unit(180). The shutter(120) is driven by an operation start signal outputted from the shutter drive unit(100). The shutter(120) outputs a square wave signal according to the operation start signal. The pulse counter unit(140) is driven by an operation start signal outputted from the shutter(120). The pulse counter unit(140) counts the square wave signal outputted from the shutter(120). A timer is mounted in the shutter error sense unit(160). The timer is driven by the operation start signal of the shutter drive unit(100).
Patent KR-20020073696-A (KR)
Title: Method for inhibiting injuries of brain cells using chitosan and Food composition comprising chitosan for the inhibition
Inventor: JANG TAE SOUN
IPC: A61K31/722
Filed: 2001-03-15
Abstract: PURPOSE: A method for inhibition of brain cell damage using a high molecular weight water-soluble chitosan is provided. In particular, the use of chitosan in a food composition inhibits brain cell damage by ageing or the like and can prevent general ageing symptoms and a brain disease such as Alzheimer's Disease(AD). CONSTITUTION: Brain cell damage is suppressed by using 0.01 to 100% by weight of a water-soluble chitosan having a molecular weight of 10,000 to 1,500,000, wherein the chitosan is deacetylated in its 90% or more and added to a food composition to enhance learning and memory.
Patent KR-20020073076-A (KR)
Title: Process of dyeing textiles with no dyes using silvcr nitrate and rcducing agent.
Inventor: CHOI GUI BOON
IPC: D06P5/10
Filed: 2001-03-13
Abstract: PURPOSE: A method of dyeing a fabric using silver nitrate and a reducing agent is provided which creates a natural and soft color, generates no waste water and reduces the dyeing cost because of using no dye. CONSTITUTION: A mixture of 100g silver nitrate and 1g palladium chloride is dissolved in 1,000ml water to produce a silver colloid. A cotton fabric is soaked in the silver colloid for 5min, hydrated and soaked in 1,000ml caustic soda solution for 5min, followed by hydrating. Thereafter, the pre-treated fabric is soaked in sodium sulfide for 5min.
Patent KR-20010103587-A (KR)
Title: 네트워크 프로세서용 소프트웨어 관리 트리 구현
IPC: H04L12/56
Filed: 2001-03-24
Abstract: 제어 포인트 프로세서(control point processor)에 의해 정의된 검색 메카니즘을 따르는 트리 구조(tree structure)를 생성하는 메카니즘을 제공하는 소프트웨어 관리형 트리(Software Managed Tree, SMT)용의 신규한 데이타 구조, 방법, 및 장치가 제공된다.  검색 메카니즘은 이전 포인터(previous pointer)에 관한 저장을 요구하지 않으며 테스트할 다음 비트 또는 비트 그룹과 함께 포워드 포인터(forward pointer)만을 필요로함으로써 노드 저장 공간을 줄여준다.  검색 메카니즘은 다중 검색을 요구하지 않고도 애플리케이션에 대해 다중 필터 규칙(multiple filter rule)을 처리하며, 아울러, 다양한 필터 규칙들이 체인화(chained)될 수 있도록 해준다.  범위 검색을 정의하기 위해 동일한 길이의 2개의 패턴이 각각의 리프(leaf) 내에 저장된다.  컴페어 앳 엔드(compare at end) 동작은 범위내 비교(compare under range) 또는 마스킹된 비교(compare under mask)중 어느 하나이다.  범위내 비교에서, 입력키가 2개의 패턴에 의해 정의된 범위 내에 있는지를 판별하기 위해, 입력키가 검사된다.  마스킹된 비교에서, 입력키 내의 비트들은 제2 리프 패턴에 의해 명시된 마스크하에서 제1 리프 패턴 내의 비트들과 비교된다.