baber/WOPTO huggingface dataset:
Patent KR-20000054958-A (KR)
Title: Semiconductor memory apparatus
Inventor: CHO SEONG HO
IPC: G11C17/14
Filed: 1999-02-02
Abstract: PURPOSE: A semiconductor memory apparatus is provided to increase the efficiency of memory usage by modifying into a small capacity of memory only with residual bank groups, abandoning bank groups having numerous fails. CONSTITUTION: A first and a second memory cell bank(10,11) are composed of a fuse part(7,8) and three switching parts(1-6) respectively. Each fuse part(7,8) cuts the fuse if an unrepairable fail is generated. The switching parts(1-6) receive a column bank selection signal(CBSEL), a precharge bank selection signal(PBSEL) and a row address signal(Row Address) respectively and switch them by the output signal of an associated fuse part. The switching parts(1-3) removes the first memory cell bank(10) from a semiconductor memory apparatus, outputting a low electric potential and interrupting the column bank selection signal, the precharge bank selection signal and the row address signal. Accordingly, the column bank selection signal, the precharge bank selection signal and the row address signal are inputted only to the second memory cell bank(11).
Patent KR-19990078539-A (KR)
Title: 지능망서비스시스템을위한디지털네트워크인터페이스및음성처리보드의실장및탈장방법
IPC: H04L12/00
Filed: 1999-03-03
Abstract: 본 발명은, DTI 및 음성 처리 보드의 수리 또는 교체를 위한 탈장 및 실장과, 지능망 서비스의 용량 확장을 위한 보드의 추가시에, 서비스를 중단하지 않으면서도 안정적인 동작을 가능하게 하기 위하여, 디지털 네트워크 인터페이스 및 음성 처리 보드의 탈장 방법에 있어서, 운용자가 해당 보드의 서비스 제공 기능을 차단하는 단계; 상기 운용자가 보드 탈장 명령을 입력하는 단계; 상기 해당 보드가 이미 탈장되어 있는지의 여부를 판단하는 단계; 상기 보드가 탈장된 것이 아닌 경우에, 상기 보드의 기능을 중단시키는 단계; 프로세스의 로딩에 관련된 구성 파일을 수정하는 단계; 및 상기 운용자가 상기 보드의 전원을 차단하고 보드를 물리적으로 탈장하는 단계를 포함하는 디지털 네트워크 인터페이스 및 음성 처리 보드의 탈장 방법을 제공한다.
Patent KR-20000059495-A (KR)
Inventor: HONG SUN YEOL
IPC: F24F13/30
Filed: 1999-03-04
Abstract: PURPOSE: A base for installing an outdoor unit of a split type air conditioner is provided to improve appearance of the air conditioner by covering the exposed parts of the base and a supporting die, reducing manufacturing cost by omitting any additional painting work of the supporting die. CONSTITUTION: A base for installing an outdoor unit of a split type air conditioner includes a main body(110) formed with a plurality of lengthwise and widthwise supporting reinforced ribs(111,112), an insertion fixing part(120) formed on a top of the main body to be inserted by a supporting die for supporting an outdoor unit(1), an opening part formed at one side of the insertion fixing part, a securing part(122) to be secured by the inserted supporting die, side walls(123) formed at both sides of the securing part for controlling left and right movement of the supporting die, and a coupling hole(124) for coupling the supporting die on a top surface of the securing part by a coupling element(2).
Patent KR-19990046011-A (KR)
IPC: C02F9/00
Filed: 1999-03-10
Abstract: 본 발명은 고농도의 유기, 무기 폐수를 물리화학과 생물학적 복합처리를 4단계로하여 하수처리의 농도비율에 따라 처리단계를 별도로 하여 하수처리와 연계토록하는 것과 4단계 전공정으로 처리하여 고도의 처리수를 방류토록 하는 처리장치와 방법에 관한 것이다. 본 복합처리의 고농도 유기, 무기폐수(하수연계)4단계 처리장치와 그 방법은 폐수에 함유된 조세목협잡물과 모래, 씨앗, 불포화성 섬유질 등을 투입 초기간계에서 제거하는 물리적 방법의 협잡물 제거기와 유량조정조의 1단계 처리공정과, 1단계에서 제거치 못한 미세협잡물과 저분자 용존고형물을 PH 조정과 고분자응집제를 첨가하여 화학 물리적 방법의 미세고형물제거기와 저류조의 2단계 처리공정과, 고분자 유,무기물을 산화분해키 위한 소화조와 미생물 생성 침거조, 고분자 유기물 분리와 마그네틱 스트리핑, 고분자 유,무기물 회수장치,고분자유· 무기물 산화조, 여과침전조, 원심농축기 등으로 구성되는 생물학적 방법의 3단계 처리공정과, 고도 처리수를 방류키 위한 오존접촉과 잔류 유· 무기물 분리조와 사(沙)여과조 등을 갖추는 4단계 고도처리 공정으로써, 하수연계처리에 있어서 하수량과 농도에 맞추어 각각의 단계에서 하수와 병합하는것과 4단계 고도처리 방류토록하는 공정을 특징으로 한다.
Patent KR-20000060056-A (KR)
Inventor: LEE SEONG HYEON
IPC: C23C14/18
Filed: 1999-03-11
Abstract: PURPOSE: A boat used in a thin-film evaporation device is provided to improve the uniformity of between the top zone and the bottom zone and of a wafer by forming larger the slot interval of the top zone and bottom zone than the center zone of a rod. CONSTITUTION: A boat used in a thin-film evaporation device comprises : a wafer to be supported and be rodding to a slot by two front rods(11) and a side rod(13). A rod is divided into the top zone(T2), the center zone(C2), and the bottom zone(B2). And the slot interval of the top zone(T2) and the bottom zone(B2) is formed larger than that of the center zone(C2).
Patent KR-19990077841-A (KR)
Title: 기판반송방법, 기판반송장치 및 기판처리시스템
IPC: H01L21/00
Filed: 1999-03-12
Abstract: 기판반송방법은, (a) 웨이퍼를 처리하기 위한 처리조건을 데이타 입력하고, (b) 이 처리조건 데이타에 의거하여 웨이퍼를 처리하는 데에 필요한 처리유니트의 수가 홀수인가 짝수인가를 판정하며, (c1) 상기 공정(b)의 판정결과가 홀수인 경우에는, 이하의 공정(dl)∼(i1)에 따라 웨이퍼를 반송하고, 
     (dl) 제2아암에 의해 기판 반입출부에서 웨이퍼를 취출하여, 
     (el) 홀수번째의 처리유니트로는 상기 제2아암에 의해 웨이퍼를 반입하고, 
     (f1) 최후의 처리유니트를 제외하고, 홀수번째의 처리유니트에서는 제3아암에 의해 웨이퍼를 반출하며, 
     (gl) 짝수번째의 처리유니트로는 제3아암에 의해 웨이퍼를 반입하고, 
     (hl) 짝수번째의 처리유니트에서는 제2아암에 의해 웨이퍼를 반출하며, 
     (i1) 최후의 처리유니트에서는 제1아암에 의해 웨이퍼를 반출하고,  또 제1아암에 의해 기판 반입출부로 웨이퍼를 반입하며, 
     (c2) 상기 공정(b)의 판정결과가 짝수인 경우에는, 이하의 공정(d2)∼(i2)에 따라 웨이퍼를 반송하고, 
     (d2) 제3아암에 의해 기판 반입출부에서 웨이퍼를 취출하여, 
     (e2) 홀수번째의 처리유니트로는 제3아암에 의해 웨이퍼를 반입하고, 
     (f2) 홀수번째의 처리유니트에서는 제2아암에 의해 웨이퍼를 반출하며, 
     (g2) 짝수번째의 처리유니트로는 제2아암에 의해 웨이퍼를 반입하고, 
     (h2) 최후의 처리유니트를 제외하고, 짝수번째의 처리유니트에서는 제3아암에 의해 웨이퍼를 반출하며, 
     (i2) 최후의 처리유니트에서는 제1아암에 의해 웨이퍼를 반출하고, 또 제1아암에 의해 기판 반입출부로 웨이퍼를 반입한다.
Patent KR-20000062086-A (KR)
Inventor: JANG YUN SEOK
IPC: H04M1/724
Filed: 1999-03-30
Abstract: PURPOSE: A method for displaying transmitting/receiving states of sound signals in a speaker phone mode of a cellular phone is provided, so that users can easily recognize the transmitting/receiving states by displaying the states on a displayer with images or characters. CONSTITUTION: If cellular phone power is on, a cellular phone controller examines whether a current ear microphone is connected through a microphone connector. If so, the controller operates a microphone mode. The controller examines whether a call is received. If so, the controller controls a ring unit to output a ring sound to outside. If a user inputs a speech forming key by responding to the ring sound, the controller forms a speech path between a receiving subscriber and an originating subscriber. The controller examines whether a call between the two subscribers is completed. If so, the controller completes all operations for the call.
Patent KR-19990087920-A (KR)
Title: 이중챔버이온빔스퍼터증착시스템
IPC: G11B5/39
Filed: 1999-04-15
Abstract: 본 발명의 이중 챔버 증착 시스템은 다층 박막 구조 증착의 공정 스루풋(throughput)을 개선하기 위해 웨이퍼 핸들러 챔버로 연결되는 두 개의 이온 빔 스퍼터링(IBS) 증착 챔버를 포함한다.  기판 위에서 행해지는 반응성 이온 빔 스퍼터링 증착 및 금속층 증착은 전체 공정을 진공 상태로 유지하면서 분리된 IBS 증착 챔버에서 수행될 수 있다.  후속 금속층 증착과 분리된 IBS 증착 챔버에서 NiO의 반응성 스퍼터링 증착이 수행되는, NiO로 형성된 반강자성(AFM)층을 갖는 스핀 밸브(SV) 자기저항 센서층의 이온 빔 스퍼터 증착 공정은 SV 센서 성능을 유지하면서 시스템 스루풋을 개선시킨다.
Patent KR-20000074093-A (KR)
Inventor: EUN JONG MYEONG
IPC: H01J17/28
Filed: 1999-05-18
Abstract: PURPOSE: A radiation fin fixing apparatus is provided to make a radiation fin fixed to a panel with strong coupling force at normal use and easily separated from the panel at an obstacle. CONSTITUTION: A radiation fin fixing apparatus comprises a panel part(1), a radiation fin(2), a both-faced tape(3) and an auxiliary radiation fin(4). The radiation fin(2) radiates heat generated from the panel part(1). The panel part(1), the both-faced tape(3), the auxiliary radiation fin(4), and the radiation fin(2) are adhered in this order. The auxiliary radiation fin(4) is fixed to the radiation fin(2) by a screw(5).
Patent KR-19990088612-A (KR)
IPC: G02F1/155
Filed: 1999-05-28
Abstract: 본 발명은 하나의 층이 전기 전도성의 전기 발색 폴리디옥시티오펜을 함유하고, 또 다른 층이 금속 산화물 기재의 무기 이온 저장 화합물 또는 이러한 이온 저장 화합물의 혼합물을 함유하며, 겔 전해질이 화학적으로 가교되어 있고 UV 보호제로서 이동할 수 없는 화학적으로 결합된 UV 흡광제를 함유하는 것을 특징으로 하는 UV 안정화된 전기 발색 소자에 관한 것이다.
Patent KR-20000075311-A (KR)
Inventor: LEE BYEONG CHEON
IPC: H04W80/02
Filed: 1999-05-31
Abstract: PURPOSE: An apparatus and method for implementing an AAL2 which supports multiple virtual channels in a mobile communication system are provided for supporting a plurality of virtual channels using an AAL2 protocol used in a base station or a switch station and transmitting a cell through a virtual channel based on a destination. CONSTITUTION: An AAL2 transmitter(430) converts packet data received from a plurality of mobile terminals into a CPS-packet, multiplexes the received data, generates a CPS-PDU of 49 bytes and routes the generated CPS-PDU to a virtual channel based on a destination. An AAL2 receiver(480) reversely multiplexes the CPS-PDU of the 49-byte received from a switch(not shown), generates a CPS-packet and transmits to a mobile terminal corresponding to the destination. A CT(CID table)(410, 460) store the CID information allocated to the CPS-packet when setting a call for supporting a plurality of virtual channels.
Patent KR-20010001932-A (KR)
Inventor: NA NAM YEOL
IPC: E03F3/06
Filed: 1999-06-09
Abstract: PURPOSE: A bonding device for a concrete pipe is provided to avoid water leakage in a bonding portion of the concrete pipe by miniaturizing the bonding device and perfectly constructing the concrete pipe within a short time even in a narrow work place. CONSTITUTION: A supporter is installed on an upper part of a square frame(11) to be separable from a boom stand of a backhoe. X and Y axle guide rods are crossed each other so that the Y axle guide rod of Y axle slider is covered on both sides. A first cylinder(20) drives the Y axle cylinder. An X axle cylinder(24) inserts in the X axle guide rod and horizontally moves toward the X axle. A second cylinder(25) is installed between the X and Y axle sliders to drive the X axle slider. A third cylinder(27) is installed between the X axle slider and a lift member to ascend the lift member. A finger holds or releases a concrete pipe and a fourth cylinder drives the finger. A pusher(30) is fixed on one side of the lift member to push the concrete pipe to a constructed concrete pipe. A control unit(33) controls the drive of each cylinder by a hydraulic pressure.
Patent KR-20010009530-A (KR)
Inventor: CHO MI YEONG
IPC: C12N15/10
Filed: 1999-07-07
Abstract: PURPOSE: A protein participating in encapsulation and a gene thereof are provided. The protein is used for remedial agent of malaria and pneumoconiosis and the like. CONSTITUTION: When a larger material like parasite than a cell comes into an insect body, an encapsulation reaction occurs through surrounding the material with several hemocytoblast. A protein participating in encapsulation and a gene thereof can be used as immunoadjuvant which induces activation of acquired immune reaction. A gene of the protein participating in encapsulation, a derivative thereof, a variant thereof are characterized by comprising DNA sequence of 9-2270 in sequence number and by comprising amino acid sequence of sequence number 2.
Patent KR-20000011777-A (KR)
Inventor: KOYAMA EIJI
IPC: H04N5/369
Filed: 1999-07-16
Abstract: PURPOSE: A charge coupled device such as a video camera and surveillance camera is provided to prevent the short between a drain and a source. CONSTITUTION: The charge coupled device(110) includes a diode(54) for generating the DC bias voltage of a CCD unit(200) and a pulse circuit(101) combined with the CCD chip(110a) instead of a resistance. Herein, the pulse generation circuit includes a voltage generation transistor(101a), a resistance and a voltage source(101c) for supplying the DC bias voltage, and the drain(D1) of the voltage generation transistor is accessed the drain(D2) of a reset transistor(52). The source and the gate(G1) of the voltage generation transistor are accessed the each terminal of the voltage source.
Patent KR-20010010552-A (KR)
Inventor: SEO YEONG HAN
IPC: H04B1/38
Filed: 1999-07-21
Abstract: PURPOSE: A method for supplying telephone fee information through a cellular phone is provided to operate a correct telephone fee for a real communication time to supply the communication fee information to a user, so as to make the user confirm the telephone fee. CONSTITUTION: If a transmitting communication is formed, a controller starts to check a communication time(S401). The controller checks current time information, and reads accounting information corresponding to the current time information among pre-registered accounting information(S405). The controller senses a communication completion(S407). The controller completes a communication time check(S409). The controller uses the accounting information according to the checked communication time to operate the communication fee(S411).
Patent KR-20010011421-A (KR)
Inventor: KIM CHANG HYEON
IPC: H05K9/00
Filed: 1999-07-28
Abstract: PURPOSE: An electromagnetic wave shielding device for an image displaying appliance is provided to simplify an assembling process and enhance a productivity. CONSTITUTION: A frame(10) has guiding portions(11) bent at both sides to which a bracket(20) is mounted, and coupling recesses to which a cover is mounted. The bracket(20) has protrusions(21) at its front surface which are coupled to the guiding portions(11) of the frame(10). The bracket(20) also has a plurality of the first latches(22) at its top end and one or more the second latches(23) at both sides. The first latches(22) are spaced apart from each other at a constant distance. The second latches(23) have a predetermined angle. The cover has a plurality of latches at its front upper surface which are coupled to the coupling recesses of the frame(10). The cover also has coupling recesses(41b) and fixing recesses to which the first and second latches(22)(23) of the bracket(20) are coupled respectively.
Patent KR-20010016646-A (KR)
Inventor: HA TAE GWANG
IPC: F16N3/10
Filed: 1999-08-02
Abstract: PURPOSE: A grease discharging device is provided to inject a needed grease amount to a relevant lubrication unit by automatically discharging. CONSTITUTION: A discharging device comprises a main body(20) installing an entrance(22), a suction hole(24), and a vent hole(26) of grease; a chamber(30) having an oil room interlocking with a pressure oil entrance(22); a sleeve(32) selectively interlocking with the suction hole and having a receiving room(36) containing grease; a piston assemblage(38) doing a reciprocation movement to compress/decompress the receiving room; a holder(48) supported by the chamber(30) to resiliently support the piston assemblage; an exterior stopper(64) forming a compression room(61) in the receiving room, interlocking with the compression room, and having a discharging room(62); an interior stopper(66) controlling the interlock between the grease discharging hole(26) and the discharging room(62). The grease compression room is sealed and an uneven shape space is formed. If the volume of the grease in the uneven space is larger than the discharging room, the discharging room is filled with the grease before a compression face(44a) of a head(44) is contacted to the outside stopper. Thus, the grease filling the space of the compression room is compressed to a specific pressure opening a ball contact face(69).
Patent KR-20010017157-A (KR)
Inventor: AHN JUNG HYEOK
IPC: B60K15/04
Filed: 1999-08-09
Abstract: PURPOSE: A fuel filler lid of automobiles with improved hinge structure enables a fuel filler lid to engage with a filler box by hinge without a hinge pin so as to make the assembly more easy and efficient. CONSTITUTION: The lid body(22) is a square steel plate and has a catching projection on one side of its inside. The hinge bracket(24) is fixed to the other side of the inside of the lid body(22) and has a pair of extensions(25) corresponding to the pair of the fixing protrusions(12). The pair of the fixing protrusions(12) have pin holes(13). The hinge pins(26) extend from ends of the pair of extensions(25) and engage with the pin holes(13) penetrating. The removal preventing projections(27) are conoid parts which have smaller diameters than the inner diameters of the pin holes(13) of the pair of fixing protrusions(12) on one side of the hinge pins(26), and preferably made of elastic materials, such as rubber.
Patent KR-20010017389-A (KR)
Inventor: YOO CHUN GI
IPC: G02F1/136
Filed: 1999-08-11
Abstract: PURPOSE: A method for forming a bottom gate type thin film transistor is provided to enhance an off electric current characteristics of a transistor by etching a semiconductor film using a metal which is weak against an etching as an etching mask. CONSTITUTION: A gate pattern(11) is formed on a glass substrate(10). A gate insulation film(13), an amorphus silicone film(15) and an amorphus silicone film being doped impurities on the gate pattern(11) successively. The amorphus silicone film being doped impurities, that is, an ohmic contact layer(17) and the amorphus silicone film(15) are patterned and removed the film(15) and layer(17) from an area except an active area. A metal layer having a molybdenum is formed and patterned on the substrate(10), a source and drain electrodes(18, 19) are formed. The ohmic contact layer(17) of an active area remaining on a channel above area between the source and drain electrodes(18, 19), and shorts circuit located between the source and drain electrodes(18, 19). The reminds amorphus silicone film(15) is operated as a semiconductor channel of a thin transistor without a short caused by a molybdenum particle. An insulation film(21) is formed and patterned on the source and drain electrodes(18, 19), and a pixel electrode layer is formed and patterned on a contact hole formed during the patterning, and a drain electrode(19) and contacted pixel electrode(23) are formed.
Patent KR-20010017966-A (KR)
Inventor: KIM I HUN
IPC: C07C69/757
Filed: 1999-08-16
Abstract: PURPOSE: A method of separating chlorogenic acid and 1,4-di-O-caffeoyl-D-(+)-quinic acid and a composition containing the extract of Eleutherococcus senticosus Max including the same acids are provided to produce a novel antioxidant having the improved activity and stability. The composition is used for medical supplies, cosmetics and food additives. CONSTITUTION: The method of separating chlorogenic acid and 1,4-di-O- caffeoyl-D-(+)-quinic acid of the formula (II) from the extract of Eleutherococcus senticosus Max comprises the steps of: adding water and hexane into the extract of Eleutherococcus senticosus Max to obtain the fragment of n-hexane layer; adding ethylacetate into the fragment of water layer to obtain a water layer and an ethylacetate layer; adding butanol into the water layer to obtain a water layer and butanol layer; purifying the ethylacetate layer and butanol layer by chromatography on silica gel, sephadex packed column chromatography, and ODS packed column chromatography to obtain the compounds of formula (II). The composition contains an effective amount of the extract of Eleutherococcus senticosus Max including the same acids, as an active ingredient.
Patent KR-20010019771-A (KR)
Title: Method of Heat Distribution for Welding
Inventor: BANG HAN SUR
IPC: G01N25/00
Filed: 1999-08-30
Abstract: PURPOSE: An analyzing method for welding heat distribution is provided to precisely estimate heat distribution generated in case of welding in a short time at a low cost, and extract an optimum welding condition to be easily utilized in a site. CONSTITUTION: An analyzing method for welding heat distribution includes the steps of inputting an initial data with relation to a model to analyze, computing a final sum of the model, computing a bandwidth of the model, initializing a thermal conductivity matrix with relation to a whole coordinates system, determining whether a fused metal is to be heated or not, computing an increased heating time period if the fused metal is to be heated, determining whether the heating is to be finished, determining existing components, defining nodal points of the components(S9), setting a local nodal temperature after the increased heating time period(S10), forming a thermal conduction stiffness matrix of the local coordinates system(S11), forming a heat capacity matrix of the system, forming heat transfer matrix of the system(S12), forming heat flux vectors of the system(S14), making the local coordinates to the whole coordinates(S15), forming a heat conductivity equation and explaining the equation(S16), and determining an increased temperature amount for a next step(S17).
Patent KR-20000023281-A (KR)
Inventor: SHELHARS PETER
IPC: F02M37/50
Filed: 1999-09-18
Abstract: PURPOSE: A device for supplying fuel is made of electro conductive plastic for inducing a static electricity charging process in a simple method while containing electro conductive connecting conduit for structuring the device. CONSTITUTION: A device for supplying fuel contains a connecting unit(14) of an electric motor(10) composed by an electro conductive material for the connecting unit to be connected with a connecting conduit(15) composed by the electro conductive material. Then, the fuel supplied through the connecting conduit flows into an external chamber(17) of a filter barrel(11) via a connecting unit(16). Herein, the connecting conduits(15,23,25) are made of the electro conductive plastic for electrically ground connecting the components of the device through connecting conduits(15,23,25). Therefore, a certain potential is maintain in a fuel flowing passage in the supplying device by arrangement of the connecting conduits, an electro conductive cover(13) of the electric motor, and a tank flange(4). Herein, the tank flange is connected to an electric ground for securing the electric ground connection of the connecting conduits and other electro conductive components to prevent a disturbing discharging process.
Patent KR-20000023293-A (KR)
Inventor: JOHNS MARK R
IPC: H01L21/66
Filed: 1999-09-20
Abstract: PURPOSE: A package and interconnecting apparatus for contacting structure body is provided to install a contacting structure to a probe card by electrically connecting edges of the contacting structure. CONSTITUTION: A contact structure body(30) formed on a contract substrate(20) is electrically connected to a contact trace(32). The contact substrate(20) is a silicon substrate or a dielectric substrate such as a glass epoxy substrate, a polyimide substrate, a ceramic substrate, and an alumina substrate. The contact trace(32) is connected to a PCB interconnecting pad(38) formed on a printed circuit board(PCB) substrate(62) and a terminal portion of the PCB interconnecting pad(38). The contact substrate(20) is installed on the PCB substrate(62) through an elastomer(42) and a supporting structure body(52). The contact substrate(20), the elastomer(42), the supporting structure body(52), and the PCB substrate(62) are fixed each other by an adherent material.
Patent KR-20010028773-A (KR)
Inventor: JUN SEONG BAE
IPC: H04N21/482
Filed: 1999-09-22
Abstract: PURPOSE: A user preference information structure having multiple hierarchical structure and method for providing multimedia information is provided to provide a user with a user preference information in a multi-media environment consisting of an information provider and an information consumer. CONSTITUTION: A user preference information structure comprises user use information by using information desired by the user, user preference information of information desired by the user, and individual user preference information that is differently set depending on situations in which the user is put and positioned in a sub-tree of the user preference information. Various independent individual user preference information structures are defined and each user preference item and user preference/non-preference included in the individual user preference information structure defines a relationship in a hierarchical structure. User preference/non-preference are defined from specific items to general items. An adoption condition of each individual user preference information structure is defined, so that detailed information can be recommended, provided or limited according to a user preference that may be different depending on situations, and information fitting situations can be recommended, provided or limited.