baber/WOPTO huggingface dataset:
Patent KR-20090063406-A (KR)
Title: Resolution checking system and method for real time motion image based on transmission configuration
Inventor: KIM YONG GYOO
IPC: H04L12/26
Filed: 2007-12-14
Abstract: A system performing a real time video estimation of image quality digitalizing quality about equipment/service and is based on the transmission characteristics and a method thereof are provided to reduce the throughput of a reception end by performing a second image quality estimation when generating transmission loss. A video encoder(111) of a transmission unit(110) encodes and receives an original video. A first image quality checking unit uses the inputted motive for action image and encoded moving picture and the picture quality of the on-going basis transmission unit is evaluated. A video decoder(121) of a receiving unit(120) decodes the encoded moving picture which is inputted from the transmission unit. A second estimation of an image quality unit receives receiving party information provided from the decoder and evaluates the picture quality.
Patent KR-20090065796-A (KR)
Title: Apparatus and method for treating substrate
Inventor: KIM YI JUNG
IPC: H01L21/68
Filed: 2007-12-18
Abstract: A substrate processing apparatus and a substrate processing method are provided to improve the processing amount of substrates by shortening a substrate transfer time. A wet cleaning unit(200) injects a processing fluid onto a substrate and cleans the substrate by using the processing fluid. A plasma processing unit is installed at one side in a lateral direction of the wet cleaning unit. The plasma processing unit performs a plasma process for the substrate. A transfer unit transfers the substrate in a straight direction from the plasma processing unit to the wet cleaning unit. A base includes a bottom wall and a sidewall perpendicular to the bottom wall. The wet cleaning unit is installed on the bottom wall. The plasma processing unit is installed on the sidewall.
Patent KR-20090068692-A (KR)
Title: 식생호안구조의 시공방법
Inventor: GIL IN HWAN
IPC: A01G1/00
Filed: 2007-12-24
Abstract: 본 발명은 하천의 식생호안구조의 시공방법에 관한 것으로, 더욱 상세하게는 하천의 제방 또는 고수부지의 침식을 방지하고, 안정화시킬 수 있도록 하는 식생호안구조의 시공방법에 관한 것이다. 
     이를 위한 본 발명에 따른 식생호안구조의 시공방법에 의하면, 하천의 제방 비탈면의 안정화와 녹화를 동시에 수행하기 위한 식생호안구조로서, 비탈면을 정리한 후 비탈면의 사면에 고정홈을 파는 고정홈파기단계와, 상기 정리된 비탈면의 상면으로 5mm 이상의 두께로 도포된 볏집과, 상기 볏집 상부에 식생매트를 부착하는 식생매트배열단계와, 상기 식생매트의 상부에 망체를 설치하고 , 상기 망체의 양끝단이 상기 고정홈에 끼워져 비탈면에 고정되도록 석재 또는 고정블록을 설치하는 식생매트고정단계를 포함하여 이루어진다.  따라서 기존의 비탈면에 망체를 설치한 후 망체에 골재 등의 돌을 채우고 그 위에 복토를 하여 비탈면을 보강하는 기존의 시공방법에 비하여 시공이 간단하며, 사용되는 골재가 적게 사용되어 경제적이고, 하천의 유속, 비탈면의 경사하중으로 인한 제방의 파손을 방지할 수 있는 작용효과가 있다. 
       
     녹화공법, 비탈면, 식생매트, 망체, 와이어로프
Patent KR-20090068922-A (KR)
Title: Manufacturing method of steel
Inventor: SUL JIN SAM
IPC: B21B45/02
Filed: 2007-12-24
Abstract: A manufacturing method of a section steel member is provided to decrease the temperature deflection between a web portion and a flange portion of H-section steel by installing a flange cooling device between a first rolling machine and a second rolling machine of a continuous mill. A manufacturing method of a section steel member comprises the steps of manufacturing H-section steel(10) composed of a web portion(11) and flange portions(13) projected to two sides of the web portion by heating a rolling material and passing through a continuous mill composed of first, second, third, fourth, fifth, sixth, seventh, eighth and ninth rolling machines, installing a flange cooling device between the first rolling machine and the second rolling machine, spraying cooling water to the flange portion of the rolling material if the rolling material passes through the first rolling machine, and going through a cooling process for reducing the temperature deflection between the web portion and the flange portion.
Patent KR-20070088447-A (KR)
Title: Stable lyophilized anthracycline glycosides
Inventor: AROSIO ROBERTO
IPC: A61K47/48
Filed: 2006-05-11
Abstract: The present invention provides lyophilized and stable lyophilized anthracycline glycoside salts, in particular, the hydrochloride salt. Also, the present invention provides methods of stabilizing these anthracycline glycoside salts, and methods for producing stable lyophilized anthracycline glycoside salts, such as for example the antineoplastic compound idarubicin hydrochloride, or the compounds doxorubicin hydrochloride, and epirubicin hydrochloride.
Patent KR-20070043992-A (KR)
Inventor: TSUKAMOTO AKIRA
IPC: H04N5/369
Filed: 2005-07-01
Abstract: 본 발명의 수광 장치는 반도체 기판 상에 형성된 수광부와, 상기 수광부에 이르는 광로 상에 유기 재료로 이루어지는 투광부를 가지고, 상기 투광부는 중수소를 함유한다.  카메라의 촬상 렌즈나 프리즘이나 촬상 소자의 마이크로 렌즈나 평탄화막, 컬러 필터가 유기 수지로 형성되는 경우에는, 그 유기 수지를 중수소화한다.  또한, 촬상 소자 내의 보호막이나 층간 절연막 등 실리콘 산화막이나 실리콘 질화막, 실리콘산 질화막도 중수소화함으로써, 감도 저하의 원인이 되는 C, O, Si, N 각각과 수소의 결합의 고유 진동을 장파장측에 시프트시킬 수 있어, 가시광 영역 및 근적외 영역의 감도가 높은 수광 장치와 그 제조 방법 및 카메라를 제안한다.
Patent KR-20070043010-A (KR)
Title: Inhibitors of angiopoietin-like 4 protein, combinations, and their use
Inventor: FERRARA NAPOLEONE
IPC: A61K39/395
Filed: 2005-07-19
Abstract: Modulators of angiopoietin-like 4 protein are provided along with methods for their use in the treatment of diseases and pathological conditions. Combinations of ANGPTL4 antagonists and other therapeutics, e.g., anti-cancer agents, and methods of their use in the treatment of mammals susceptible to or diagnosed with cancer, or with relapse tumor growth or relapse cancer cell growth are also provided.
Patent KR-20070049166-A (KR)
Inventor: SCHAEFER STUART
IPC: G06F9/445
Filed: 2005-07-21
Abstract: 목표 기기(target machine) 상에서의 종속 소프트웨어 패키지의 검출 및 이용을 자동화하기 위한 방법은, 제1 소프트웨어 패키지의 설치 또는 실행 동안, 종속성을 검출하는 단계, 소프트웨어 패키지의 설치 또는 실행을 잠시 멈추는 단계, 종속 소프트웨어 패키지를 구성하는 단계 및 제1 소프트웨어 패키지의 설치 또는 실행을 계속하는 단계를 포함한다.  종속성을 검출하는 단계는, 종속성에 대하여 하나 이상의 리포지터리를 질의하는 단계를 포함한다.  또한, 종속성을 검출하는 단계는, 템플릿 매칭을 위한 규칙의 사용 및 매칭 구성 정보에 대하여 하나 이상의 리포지터리를 질의하는 단계를 포함한다.  종속성을 검출하는 단계는, 목표 기기 상에서의 소프트웨어 동작의 실행을 포함하며, 여기서 결과적인 실패는 리포지터리를 질의하기 위한 필요성을 나타낸다.  종속 소프트웨어 패키지의 구성을 나타내는 정보가 목표 기기의 사전 구성 스냅샷에 추가된다.  목표 기기 상에 종속 소프트웨어 패키지를 구성하는 단계는, 시뮬레이션 또는 가상 설치에 의해 수행된다.  이 단계는 구성의 하나 이상의 리포지터리 및 제1 소프트웨어 패키지의 종속성을 갱신하는 단계를 포함한다.  이 방법은 또한 구성의 하나 이상의 리포지터리 및 제1 소프트웨어 패키지의 종속성을 갱신하는 단계를 더 포함한다. 
       
      서비스 공급자, 네트워크, 소프트웨어 리포지터리, 컴퓨터, 소프트웨어 패키지
Patent KR-20070048232-A (KR)
Inventor: WEISS ANDRE
IPC: G11B7/257
Filed: 2005-08-31
Abstract: 본 발명은 광학 데이터 기록, 바람직하게는 450 nm 이하의 파장을 갖는 레이져를 사용하는 광학 자료 기록을 위한, 광학 층중에서의 화학식 I 및 II의 티아졸릴-피리디늄계 염료의 용도에 관한 것이다.  또한, 본 발명은 블루 레이져의 방사로 정보를 기록하고 재생할 수 있는 WORM(한번 기록, 여러번 판독) 유형의 광학 데이터 기록 매체에 관한 것이고, 이는 광학 층중에서 티아졸릴-피리디늄계 유형의 염료를 사용한다.  또한, 본 발명은 하기 화학식 V, VI 또는 VIII의 신규한 티아졸릴-피리디늄계 염료에 관한 것이다: 
     화학식 V 
     
       
     
     화학식 VI 
     
       
     
     화학식 VIII
Patent KR-20070038175-A (KR)
Inventor: YOKOSHIMA TAKAO
IPC: H01Q1/24
Filed: 2005-08-29
Abstract: 과제 
     
     통신 품질이 양호해지는 안테나의 배치 위치를 조정할 필요가 없고, 취급이 편리한 무선 통신 모듈 및 무선 통신 장치를 제공한다.      
     
       해결 수단 
     
     로딩 역 F 안테나에 의해 전파의 송수신을 실시하는 안테나 회로 (1) 와, 무선 통신의 제어를 실시하는 제어 회로, 주파수의 변조를 실시하는 변복조 회로, 주파수의 변환을 실시하는 주파수 변환 회로, 데이터의 입출력을 실시하는 인터페이스 회로 중, 적어도 1 개 이상의 회로에 의해 구성되는 무선 통신 회로 (14) 를 갖는다. 
     또, 무선 통신에 사용하는 전파의 파장을 λ(m), 주파수를 f(Hz), 광속을 c(m/s), 계수 a=70 ∼ 130 으로 한 경우에, 로딩 역 F 안테나의 로딩부 (6) 와 무선 통신 회로 (14) 의 거리를, 로딩부의 길이 방향에 직교하는 방향으로, x=λ×(√(f/c))/a 이상의 거리 x(m) 만큼 떨어뜨려 기판 상에 실장한다.      
       
     무선 통신 모듈, 무선 통신 장치
Patent KR-20070050970-A (KR)
Inventor: JINNO MASAFUMI
IPC: H01J61/04
Filed: 2005-08-26
Abstract: 무수은 램프는 희가스로 채워진 유리벌브(4); 상기 유리벌브(4)에 제공되는 제 1 및 제 2 내부전극 유닛(19, 15); 및 상기 제 1 및 제 2 내부전극 유닛(19, 15) 사이에서 점등 중에 형성되는 방전로에 대응하는 영역에서 상기 유리벌브(4)의 외부면에 제공되는 외부전극(24)을 포함하며, 상기 외부전극(24)에 의해 양광주가 상기 방전로를 따라 생성되고 횡단면에서 팽창되도록 한다. 제 1 내부전극 유닛(19)은 내부전극(18, 20)으로 구성되고, 제 2 내부전극 유닛(15)은 내부전극(14, 16)으로 구성된다. 
       
     내부전극, 외부전극, 양광주, 팽창, 방전로, 수축, 횡단면
Patent KR-20070042210-A (KR)
Inventor: TAKEMOTO HIDEMI
IPC: C08G64/42
Filed: 2001-07-13
Abstract: 방향족 폴리카보네이트를 제조하는 원료인 방향족 디히드록시 화합물 및 탄산디에스테르를, 저장시의 분위기, 온도, 저장조와의 온도차 및 체류시간의 각각의 영향 정도를 고려하여 보존함으로써, 색조가 양호한 방향족 폴리카보네이트를 얻을 수 있다.  
     방향족 디히드록시 화합물, 탄산디에스테르, 보존 방법
Patent KR-20070062985-A (KR)
Title: Hair care formulations comprising aminofunctional polyorganosiloxane
Inventor: TSOTSOROS RHONDA F
IPC: A61K8/89
Filed: 2005-10-06
Abstract: This invention relates to hair conditioning formulations comprising at least one aminofunctional polyorganosiloxane. Furthermore, the invention relates to the use of these formulations for the treatment of keratin-containing fibers, preferably human hair.
Patent KR-20080005349-A (KR)
Title: Color filter, process for manufacturing color filter, and liquid crystal display device
Inventor: ITO HIDEAKI
IPC: G02B5/20
Filed: 2005-10-07
Abstract: A color filter including colored pixels of at least two or more colors, in which the colored pixels contain at least pigment particles, the contrast of each colored pixel is not lower than 2000 and the difference between the contrast of the colored pixel having the lowest contrast and the contrast of the colored pixel having the highest contrast among the colored pixels of two or more colors is not more than 600; a process for manufacturing the same; and a liquid crystal display device using the color filter.
Patent KR-20070068397-A (KR)
Title: Multiple technique entropy coding system and method
Inventor: LYNCH WILLIAM C
IPC: G06T9/00
Filed: 2005-09-22
Abstract: A system, method and computer program product having optimal matching to a known or measured probability distribution encodes data without the use of an excessively large lookup table. An encoder (201) constructed according to the present invention uses two or more different encoding methods in combination. In one embodiment, Huffman coding by table lookup is combined with computational generation, such as by using an exponential Golomb equation. The most commonly occurring elements are looked up in a small Huffman table, while the remaining elements are coded with the equation. In another embodiment, data is encoded using two or more equations. In yet another embodiment, data is encoded using multiple tables in conjunction with one or more equations.
Patent KR-20070059195-A (KR)
Title: Display device and electronic device using the same
Inventor: OZAKI TADAFUMI
IPC: G09G3/30
Filed: 2005-09-26
Abstract: According to the invention, a compact and inexpensive with low power consumption memory and low access speed can be used for a panel controller and a deterioration compensation circuit of a display device. In a display device of a digital gray scale method, a plurality of pixels of a display panel are divided into first to n-th pixel regions (n is 2 or more) and a format converter portion of a panel controller converts the format of only video data corresponding to one of first to n-th pixel regions and writes the data to one of first and second video memories in each frame period. A display control portion reads out video data that is converted in format and corresponds to one of first to n-th pixel regions in which video data is written to the other of the first and second video memories in the preceding frame period, and transmits the data to the display panel.
Patent KR-20070084081-A (KR)
Title: Transparent multi-cation ceramic and method of making
Inventor: LOUREIRO SERGIO PAULO MARTINS
IPC: C04B35/44
Filed: 2005-11-01
Abstract: A method of making a multi-cation ceramic having an average grain size of less than 1 micron is provided. The method includes the steps of providing at least a first material and a second material, wherein the first material comprises a first cation and the second material comprises a second cation, and wherein the first cation and the second cation are different from each other and each of the first material and the second material are nanopowders; forming a mixture comprising the first material and the second material; forming a green body from the mixture; and forming a dense multi-cation ceramic material comprising the first cation and the second cation, wherein the dense multi-cation ceramic material comprises a major phase comprising the first cation and the second cation and that is different from the first material and the second material. The multi-cation ceramic has a high density and high in-line transmission.
Patent KR-20070084313-A (KR)
Title: Word line driver circuit for a static random access memory and method therefor
Inventor: REMINGTON SCOTT I
IPC: G11C11/413
Filed: 2005-10-25
Abstract: A static random access memory (14) has a normal mode of operation and a low voltage mode of operation. A memory array (15) includes memory cells (16) coupled to a first power supply node (VDD) for receiving a power supply voltage. A plurality of word line drivers is coupled to word lines of the memory array (15) and to a second power supply node (37). A word line driver voltage reduction circuit (36) has an input coupled to the first power supply node (VDD) and an output coupled to the second power supply node (37) for reducing a voltage on the output in relation to a voltage on the input in response to a low power supply voltage signal, and thus improving a static noise margin of the memory cells (16).
Patent KR-20070095902-A (KR)
Title: Precision apparatus having a movable member, an air slit and a vacumm duct
Inventor: RIJKEN ANTONIUS M
IPC: B23Q1/01
Filed: 2005-12-14
Abstract: A precision apparatus has a movable member (A), moving in a bridge element (2) arranged perpendicular to the movement of the moveable element. The bridge element comprising an air slit (S) and a exhaust (E). The bridge element (2) comprises a primary air duct (21), substantially extending along the length of the bridge element, which primary air duct is provided with apertures (21a, 21b), The apertures (21a, 21b) are evenly distributed along the length of the bridge element, and form an air flow passage to a secondary air duct (22), also substantially extending along the length of the bridge element. Through the secondary air duct in operation air is drawn through the air slit (S).
Patent KR-20070103369-A (KR)
Title: Cement kiln firing waste gas treating apparatus and treating method
Inventor: SAITO SHINICHIRO
IPC: C04B7/60
Filed: 2005-12-27
Abstract: [PROBLEMS] To while keeping facility cost and operating cost low, efficiently remove from a cement kiln firing waste gas any hazardous substances, such as dust, NOx, residual organic pollutants, volatile organic compounds, CO and odorous substances. [MEANS FOR SOLVING PROBLEMS] There is provided firing waste gas treating apparatus (1) comprising dust collection unit (6) for collecting of dust from cement kiln firing waste gas (G1), wet dust collector (7) as a catalyst poisoned substance removing unit for removing of catalyst poisoned substances from firing waste gas (G2) having passed through the dust collection unit (6), preheating units (10,11) for preheating of firing waste gas (G3) having passed through the wet dust collector (7), and catalyst unit (12) for removing of NOx, residual organic pollutants, etc. from the preheated firing waste gas. A titanium/vanadium catalyst or the like as oxide catalyst is used in the upstream side of the catalyst unit (12), while a platinum catalyst or the like as noble metal catalyst is used in the downstream side thereof. The firing waste gas after removing of catalyst poisoned substances is heated to >= 140°C by means of the preheating units, thereby preventing any drop of the efficiency of denitration and volatile organic compound decomposition.
Patent KR-20070089725-A (KR)
Title: Water-dispersible wet wipe having mixed solvent wetting composition
Inventor: TANZER RICHARD W
IPC: C08F8/44
Filed: 2005-11-09
Abstract: A wet wipe contains fibrous material, a binder composition for binding the fibrous material into an integral web, and a wetting composition containing water, a salt, and at least about 10 wt% of an organic solvent. The binder composition contains an ionic copolymer. The wet wipe is not dispersible in the wetting composition, and is dispersible in water containing up to 200 ppm of one or more multivalent ions. The ionic copolymer may be the polymerization product of a vinyl-functional cationic monomer and at least one non-ionic vinyl monomer. The ionic copolymer may be the polymerization product of a vinyl-functional anionic monomer and at least one non-ionic vinyl monomer.
Patent KR-20070098863-A (KR)
Title: Flame retardant polystyrene foam compositions
Inventor: MAXWELL KIMBERLY A
IPC: C08K5/32
Filed: 2004-12-22
Abstract: Expandable polystyrene foam compositions having flame retardant properties, flame retardant expanded polystyrene foams, methods of making such foams, and products comprising such compositions and foams are provided. A flame-retarded expanded polystyrene foam contains a flame retardant compound having the structure: (I) wherein R is H or CH 3.
Patent KR-20070093137-A (KR)
Title: Electronic devices comprising conductive members that connect electrodes to other conductive members within a substrate and processes for forming the electronic devices
Inventor: YU GANG
IPC: H01L21/28
Filed: 2005-12-29
Abstract: An electronic device includes a substrate including a pixel driving circuit, a first conductive member, and a second conductive member. The first and second conductive members are spaced apart, the first conductive member is connected to the pixel driving circuit, and the second conductive member can be part of a power transmission line. The electronic device also includes an electronic component that includes a first electrode that contacts the first conductive member, a second electrode that is connected to but does not contact the second conductive member, and an organic layer lying between the first and second electrodes. The electronic device also includes a third conductive member that is connected to the second electrode and the second conductive member, and contacts the second conductive member. In one embodiment, a process for forming the electronic device uses the second electrode as a hardmask when removing portions of the first organic layer.
Patent KR-20070118234-A (KR)
Title: Liquid crystal display
Inventor: YOSHIHARA TOSHIAKI
IPC: G02F1/133
Filed: 2005-03-29
Abstract: In a predetermined period (one frame or one subframe), a backlight is lighted between the middle point in time in first data writing scanning and the middle point in time in second data writing scanning for each lighting region provided by dividing the backlight into four regions. When the time required for data writing scanning is set equal to 50% of the predetermined period, the ratio (panel on rate) of the time when a liquid crystal panel is in transmitting state to the time the backlight is lighted is as high as 93.8%. The ratio of luminance gradient (luminance in the center of display area/luminance at the end of display area) is as low as 1.14. When the backlight is lighted while being divided into ten regions, the panel on rate can be increased as high as 97.5% and the luminance gradient can be decreased as low as 1.05.
Patent KR-20070116058-A (KR)
Title: Power saving methods and apparatus for variable length instructions
Inventor: STEMPEL BRIAN MICHAEL
IPC: G06F9/06
Filed: 2006-03-03
Abstract: A processor capable of fetching and executing variable length instructions is described having instructions of at least two lengths. The processor operates in multiple modes. One of the modes restricts instructions that can be fetched and executed to the longer length instructions. An instruction cache is used for storing variable length instructions and their associated predecode bit fields in an instruction cache line and storing the instruction address and processor operating mode state information at the time of the fetch in a tag line. The processor operating mode state information indicates the program specified mode of operation of the processor. The processor fetches instructions from the instruction cache for execution. As a result of an instruction fetch operation, the instruction cache may selectively enable the writing of predecode bit fields in the instruction cache and may selectively enable the reading of predecode bit fields stored in the instruction cache based on the processor state at the time of the fetch.
Patent KR-20070110543-A (KR)
Title: Interpolated frame deblocking operation in frame rate up conversion application
Inventor: SHI FANG
IPC: H04N19/895
Filed: 2006-03-10
Abstract: A method and apparatus to enhance the quality of interpolated video, constructed from decompressed video data, comprising denoising the interpolated video data, is described. A low pass filter is used to filter the interpolated video data. In one embodiment, the level of filtering of the low pass filter is determined based on a boundary strength value determined for the interpolated video data and neighboring video data (interpolated and/or non-interpolated). In one aspect of this embodiment, the boundary strength is determined based on proximity of reference video data for the interpolated video data and the neighboring video data.
Patent KR-20080005968-A (KR)
Title: Dc tissue treatment
Inventor: ROSEMBERG YOSSEF
IPC: A61N1/04
Filed: 2006-04-20
Abstract: Disclosed are a method and a device useful for performing cosmetic or medical procedures of an in vivo portion of tissue. The method includes contacting an in vivo portion of tissue with a portion of a pad, substantially saturating the pad with a reactant, contacting the pad with a first electrode so that the first electrode is proximate to the portion of the pad proximate to the in vivo portion of tissue. The method further includes contacting the pad with a second electrode so as to provide an electrical path between the first electrode and the second electrode through the reactant, passing a DC voltage through a circuit including the first electrode, the reactant and the second electrode, thereby forming at least one of: an electrolytic effect, and an electrolytic product of the reactant, proximate to the first electrode.
Patent KR-20080004625-A (KR)
Title: Method and apparatus for group key generation
Inventor: TARKKALA LAURI
IPC: H04N7/167
Filed: 2006-04-24
Abstract: A key generation system is disclosed that provides for the generation of privileged group keys based on the input of a privileged group. The system performing the key generation has stored component keys corresponding to every possible subset X of the unitary set, where subsets X have k or fewer members. The privileged group key is generated for the privileged set by passing ordered component keys of subsets X that do not contain members of the privileged set to a pseudo random function.
Patent KR-20080012968-A (KR)
Title: Anti-mcp-1 antibodies, compositions, methods and uses
Inventor: DAS ANUK
IPC: A61K39/395
Filed: 2006-05-19
Abstract: The present invention relates to at least one novel anti-MCP-1 antibody, including isolated nucleic acids that encode at least one anti-MCP-1 antibody, MCP-1, vectors, host cells, transgenic animals or plants, and methods of making and using thereof, including therapeutic compositions, methods and devices.
Patent KR-20090076047-A (KR)
Title: Method and system for providing presence service using a manner mode
Inventor: SUH JUNG WOO
IPC: H04W8/20
Filed: 2008-01-07
Abstract: A method and a system for offering a presence service through a manner mode of a mobile terminal are provided to facilitate registration of user state information of a user terminal through a manner mode setting function of the mobile terminal. A manner mode is set in a mobile terminal(100). It is checked whether the mobile terminal is registered to a presence service by operating an application. A user state of the mobile terminal is registered by transmitting the user state to a presence server according to a checking confirmation result.