baber/WOPTO huggingface dataset:
Patent KR-20020042278-A (KR)
Title: A zig to be fix spacer of a flat panel display and a method for fixing the same
Inventor: LEE DU YEOL
IPC: H01J1/30
Filed: 2000-11-30
Abstract: PURPOSE: A jig for fixing a spacer of a flat display device and a method for fixing the same are provided to compensate a contracting phenomenon and a bending phenomenon of a spacer by fixing easily the spacer on an upper substrate. CONSTITUTION: The first fixing jig(31a) is fixed to one side of an upper substrate(100) having a fluorescent body(39). An aligning mark(33) is formed on the fixing jig(31a). The fixing jig(31a) is aligned by the aligning mark(33). A hole(37) is buried by a sealant. The sealant is hardened by performing the first calcination process. The second fixing jig(31b) is fixed to the other side of the upper substrate(100). The hole(37) of the second fixing jig(31b) is buried by the sealant. The second fixing jig(31b) is aligned by the aligning mark(33). A spacer(50) is inserted into a spacer insertion hole(37) of the first and the second fixing jigs(31a,31b). A gap between the spacer insertion hole(35) and the spacer(50) is buried by the sealant. The second calcination process is performed to fix the second fixing jig(31b), the spacer(50), and a combination portion of the insertion hole(35) to the upper substrate(100).
Patent KR-20020042304-A (KR)
Title: Apparatus for separating luminance/color signal in a video signal processing system
Inventor: JUNG CHANG SU
IPC: H04N9/78
Filed: 2000-11-30
Abstract: PURPOSE: A device for separating luminance signals from color signals in a video signal processing system is provided to separate color signals from composite video signals by a comb filter after comparing correlations between lines, and to generate color difference signals, thereby exactly separating the color signals in a section where the composite video signals change a lot. CONSTITUTION: A comb filter block(201) inputs composite video signals, and separates luminance signals from color signals for signals output from two 1H delayers connected in serial, then generates the luminance signals and the color signals. A BPF(Band Pass Filter)(202) inputs the composite video signals, and passes the color signals only to generate the first color signal. A comparator(203) inputs the first color signal and a predetermined color signal output from the comb filter block, and arithmetically operates a difference between the first color signal and the predetermined color signal. If an operated value exceeds a reference value, the comparator generates a switching control signal. A switch(204) inputs the predetermined color signal and the first color signal, and outputs the first color signal if the switching control signal is applied. If the switching control signal is not applied, the switch outputs the predetermined color signal.
Patent KR-20020043424-A (KR)
Title: Remote control supervision system and method
Inventor: LEE MAN SUN
IPC: H04Q9/00
Filed: 2000-12-04
Abstract: PURPOSE: A remote control management system and a method for controlling the same are provided to efficiently carry out remote control management for terminals in a group configuring a LAN(Local Area Network). CONSTITUTION: If a manager selects and executes a remote control management program through a main PC(100), a network connection module in the main PC is activated. The network connection module executes network scanning(400). In response to it, the network connection module of a client PC(200a) acquires and stores information for the main PC and transmits a network response(410). The main PC and the client PC are networked by the network scanning and response between them(420). If a remote control command is received from the manager(430), the control part of the main PC calls a module for command execution(440). The called module calls a necessary client side's module and requests the client side to transmit data(450). In response to the data request, the client PC calls and executes a necessary program module(460) and transmits the requested data to the main PC(470). If the release of the network connection is selected by the manager, the main PC transmits a network connection release command to the client PC so that the network connection can be released automatically(480).
Patent KR-20010016398-A (KR)
Title: Novel Seasoned oil and process for preparation thereof
Inventor: KIM DONG SU
IPC: A23L27/10
Filed: 2000-12-07
Abstract: PURPOSE: A method for preparing an oil product by using powdered sesame seed and perilla seed is provided to serve the oil having unique taste and aroma of the sesame and the perilla at the same time. CONSTITUTION: The new taste of oil is produced by the steps of: (i) sorting and pulverizing sesame seed and perilla seed; (ii) mixing 10-50wt% of the finely powdered sesame seed and 1-20wt% of the powdered perilla seed with 50-90wt% of cooking oil made from corn; (iii) extracting the mixture at 80-120deg.C for 30-90mins and first filtrating the extract with a separator to remove the solid from the mixture; and then (iv) secondary filtrating the resulting liquid by using a filter press and adding 0.01-0.5wt% of antioxidant to the completely filtrated liquid of oil.
Patent KR-20010025321-A (KR)
Title: A roar bomb for fishing tunas
Inventor: AHN JONG BIN
IPC: F42B19/00
Filed: 2000-12-13
Abstract: PURPOSE: A cracker for the catch of tuna is provided to save work labor and work time by integrally charging an explosive and dyes in the explosive bomb and inputting the dyes upon the explosion and the generation of flash. CONSTITUTION: A cracker is comprised of an outer shell(11) for making an explosive(15) and a cracker(10) keep specific weight by sequentially charging sand; upper and lower finishing layers(12a,12b) fixed on upper and lower parts to finish the upper and lower ends of the outer shell; a fuse(16) penetrating through the upper finish layer of the upper part to ignite the explosive; a dye layer(14) filled in the outer shell and made up of the sand and the dyes at a specific ratio to incur eyesight troubles of tuna; a tube(18) for preventing the fuse from being put out upon contacting sea water; and a protection cap(19) for preventing an ignited flame from transferring to and igniting other fuses. Thereby, work labor and work time for discharging the explosive bomb are minimized.
Patent KR-20020049337-A (KR)
Title: Apparatus for duplexing link port Synchronous Transport Module
Inventor: PARK JAE YEONG
IPC: H04L12/70
Filed: 2000-12-19
Abstract: PURPOSE: An STM(Synchronous Transport Module) link port duplexing apparatus is provided to efficiently manage a link by variably configuring a duplexing block. CONSTITUTION: A UTOPIA(Universal Test and Operation and Physical Interface for ATM) level 2 interface control unit(25) converts an address of 16-bit data(ATM(Asynchronous Transfer Mode) cell) transmitted from a UTOPIA interface chip(27) to transmit the converted data to a UTOPIA FIFO(22), and converts an address of 16-bit data transmitted from one FIFO between bus matching FIFOs(23,24) to transmit the converted data to a UTOPIA interface chip(27). The UTOPIA FIFO(22) converts the 16-bit data transmitted from the UTOPIA level 2 interface control unit(25) into UTOPIA level 1 8-bit data and transmits the UTOPIA level 1 8-bit data to one STM-1 interface chip between STM-1 interface chips(20,21) according to the address conversion result. The bus matching FIFOs(23,24) convert the UTOPIA level 1 8-bit data transmitted from the STM-1 interface chips(20,21) into UTOPIA level 2 data and transmit the UTOPIA level 2 data to the UTOPIA level 2 interface control unit(25). A processor(26) controls the address converted in the UTOPIA level 2 interface control unit(25).
Patent KR-20020051279-A (KR)
Title: Charging ratio control method for radius direction ore and cokes in blast furnace
Inventor: HUH MAN HYEON
IPC: C21B7/20
Filed: 2000-12-22
Abstract: PURPOSE: A method for controlling charging ratios per radius directions of charging materials during blast furnace end operation is provided to protect bricks of the furnace body and stably maintain circumstances of a blast furnace by charging an accurate amount of charging materials per the radius directions into the blast furnace. CONSTITUTION: The method for controlling charging ratios per radius directions of charging materials during blast furnace end operation comprises a first step of weighing a coke amount to be actually charged per a charge from the total coke charging amount, and setting an amount of coke to be charged into a last notch of a coke charging matrix into a process computer; a second step of switching an input cell of the concerned notch from a ratio input type to a weighing input type by recognizing the last notch of the coke charging matrix in a furnace top PLC after the first step, and receiving a set value to be charged into the last coke notch from a process computer through an electrical communication controller; a third step of loading charged amounts per each notches from a weighing PLC to the process computer after the second step, and compensating after comparatively calculating the charged amounts with a target charging amount through the process computer; a fourth step of weighing a large sized ore amount to be actually charged per a charge in the total charging amount of large sized ore after the third step, and setting a large sized ore amount to be charged into a last notch of a large sized ore charging matrix into the process computer; a fifth step of switching an input cell of the concerned notch from a ratio input type to a weighing input type by recognizing the last notch of the large sized ore charging matrix in the furnace top PLC after the fourth step, and receiving a set value to be charged into the last large sized ore notch from the process computer through the electrical communication controller; a sixth step of loading charged amounts per each notches from the weighing PLC to the process computer after the fifth step, and compensating after comparatively calculating the charged amounts with a target charging amount through the process computer; a seventh step of weighing a small sized ore amount to be actually charged per a charge in the total charging amount of small sized ore after the sixth step, and setting a small sized ore amount into the process computer by applying ratios per each notches onto a small sized ore charging matrix; and an eighth step of transmitting the changed target charging amount to the weighing PLC by transmitting values of each small sized ore notches inputted after the seventh step into the process computer so that the values of each small sized ore notches are changed into target charging amounts per each notches based on a small sized ore amount waiting for charging.
Patent KR-20020053208-A (KR)
Title: Corrosion restraining method for incinerator of gas scrubber by using ceramic tube
Inventor: JANG GIL NAM
IPC: H01L21/02
Filed: 2000-12-27
Abstract: PURPOSE: A method for restraining the corrosion of a gas scrubber combustion furnace by using a ceramic pipe is provided to protect the combustion furnace of the gas scrubber from a corrosive gas generated from a manufacturing and a combusting process. CONSTITUTION: The ignitable and toxic gas generated from a semiconductor process and a work field is came in through an inlet pipe(1). F2 and HF gas in the inlet gas are removed by using the F2 removing trap(2) installed in front of the combustion furnace. The toxic gas removed the corrosive gas is supplied to the inside of the combustion furnace through a chamber(3). The chamber is made by inserting the ceramic pipe(5) not corroded by the corrosive gas. An absorbing agent(7) capable of removing the F2 chemicals and the corrosive gas is filled between the ceramic pipe and an outer case(6) in order to protect the fragile ceramic pipe from the impact. The absorbing agent plays a role of a buffer and removes the leakage corrosive gas in order not to corrode the main body of the combustion furnace.
Patent KR-20020055137-A (KR)
Inventor: SEO SU JIN
IPC: H01L27/108
Filed: 2000-12-28
Abstract: PURPOSE: A method for fabricating a capacitor of a semiconductor device is provided to reduce a bridge defect and guarantee high capacitance, by eliminating a part of a high-doped amorphous silicon layer on the outer wall of a storage node. CONSTITUTION: A semiconductor substrate(1) is prepared. The first interlayer dielectric(3) having a contact hole(4) for connecting the storage node is formed on the semiconductor substrate. A contact plug is formed in the contact hole. An etch stop layer and an interlayer dielectric are formed on the resultant structure. The second interlayer dielectric and the etch stop layer corresponding to a capacitor formation region are selectively eliminated to expose the contact plug and the first interlayer dielectric. An undoped amorphous silicon layer(9) and an undoped amorphous silicon layer are sequentially formed on the resultant structure. The third interlayer dielectric is formed and planarized on the resultant structure. The third interlayer dielectric, the undoped amorphous silicon layer and the doped amorphous silicon layer are etched until the second interlayer dielectric is exposed. The doped amorphous silicon layer and the undoped amorphous silicon layer are selectively eliminated. The third interlayer dielectric and the second interlayer dielectric are eliminated. A hemispherical silicon layer(11) is formed on the remaining doped amorphous silicon layer.
Patent KR-20020056695-A (KR)
Title: Pattern structure for preventing static electricity for liquid crystal display panel
Inventor: JUN JONG YEOP
IPC: G02F1/13
Filed: 2000-12-29
Abstract: PURPOSE: An electrostatic discharge pattern structure of a liquid crystal display panel is provided to reduce pixel defects and data open defects and to improve yield of the liquid crystal display panel. CONSTITUTION: A part of a repair line(22) is formed when a gate pattern is formed, and the remaining part of the repair line is formed when a data pattern is formed so as to finally form the repair line in a liquid crystal display panel. When the repair line is formed, a portion of the repair line is extended to form the first extension part(23). The first probing part(23a) is formed at the end of the extension part. A part of a common line(26) is extended to form the second extension part(27). The second probing part(27a) is formed at the end of the second extension part. The first and second probing parts face each other and have a distance between the two probing parts. An electrostatic discharge region(40) is formed according to the probing parts.
Patent KR-20010023378-A (KR)
Title: 액체 얼음 혼합물의 농도를 결정하는 장치 및 방법
IPC: G01N25/00
Filed: 1998-08-27
Abstract: 액체 얼음혼합물(이원얼음액체)에서 얼음농도를 결정하기 위한 방법이 다음 단계를 특징으로한다. 
     - 입구온도 t A 및 출구온도 t B 의 측정에 의해 수반된 액체의 부분적흐름이 분리되고 완전히 녹을 때까지 열교환자(16)로 부분적으름이 도입되며 가열되고 
     - 복귀 부분흐름의 입구온도 t C 및 출구온도 t O 의 측정에 의해 수반된 열교환자(16)를 통한 부분흐름의 복귀 및 외부열원에의한 액체흐름이 가열 그리고 식 
     - X ice =(t C -t D -t B +t A )·(cp fluid /h ice ) 
     cp fluid 이원얼음흐름의 특정열용량 
     h ice 이원얼음의 용융엔탈피, 에 의한 얼음농도가 계산되는 단계.
Patent KR-20010015664-A (KR)
Title: 플라즈마 스퍼터 반응기내의 절연 세라믹 코팅된 금속부
IPC: H05H1/46
Filed: 1998-09-28
Abstract: 본 발명은 플라즈마 반응기, 특히 플라즈마 스퍼터링 반응기내의 전기적 플로팅 시일드용 지지대로서 사용하기 위한 절연부에 관한 것이다.  상기 절연부는 금속성 베이스 및 알루미나와 같은 세라믹 절연체로 이루어진 부분 표면 커버링으로 구성된다.  바람직하게 세라믹 코팅은 열적 스프레잉에 의해 증착된다.  상기 절연부는 상기 부분의 코팅되지않은 부분에 부가되는 나사와 같은 조임 수단의 사용에 의해 챔버내의 다른 금속부에 쉽게 부착된다.  절연부가 제2 금속부를 지지하고 절연하는 절연체로서 사용될 때, 제2 금속부는 챔버 벽 또는 다른 금속지지 부재에 나사 결합된 절연부로 세라믹 코팅상에 안착될 수 있다.
Patent KR-20010033177-A (KR)
Title: 고압력의 수정 유리 버블러 앰폴 및 조립체
IPC: B01F3/04
Filed: 1998-12-14
Abstract: 부식성이 강한 화학물을 수용하는 버블러 앰폴 및 버블러 조립체는 고압력 화학물의 안전한 수송 및 이용을 가능하게 하는 강화된 강도를 제공하도록 구성된다.  이와 같이 강화된 조립체의 강도는 앰폴 상에 적당한 반경의 모서리를 제공하고 앰폴의 측벽 두께에 대한 바닥벽 두께의 비율을 제공함으로써 제공된다.
Patent KR-20010033488-A (KR)
IPC: D06L4/40
Filed: 1998-12-17
Abstract: The present invention provides a process for removal of excess dye from newly manufactured printed or dyed fabric or yarn, comprising treatment with a rinse liquor comprising at least one enzyme selected from the group consisting of enzymes exhibiting peroxidase activity or laccase activity, an oxidation agent, and at least one mediator selected from the group consisting of aliphatic, cyclo-aliphatic, heterocyclic or aromatic compounds containing the moiety > N-OH, in particular 1-hydroxybenzotriazole.
Patent KR-20010024833-A (KR)
Title: 직접-시퀀스 스펙트럼 확산 통신 시스템에서 높은 비트밀도를 실현하기 위해 인코딩된 확산 코드를 이용하는 방법
IPC: H04J13/10
Filed: 1998-12-22
Abstract: 인코딩된 확산 코드를 이용하여 직접-시퀀스 스펙트럼 확산 통신 시스템에서 높은 비트 밀도를 실현하는 방법이 제공된다. 먼저, 인코딩된 의사-잡음 코드(213)가 생성되고, 다음에 이 인코딩된 의사-잡음 코드(213)는 그 인코딩된 의사-잡음 코드(213)를 이용하여 정보 신호(210)를 변조함으로써 정보 신호(210)를 확산시키기 위해 이용된다. 신호를 복조하기 위해서도 동일한 인코딩된 의사-잡음 코드(213)가 사용된다. 인코딩된 의사-잡음 코드(213)는 의사-잡음 코드(211)의 하나의 비트를 반전시킴으로써 생성되며, 여기서 반전된 비트는 정보 신호의 값에 대응한다.
Patent KR-20010041417-A (KR)
IPC: C23C22/18
Filed: 1999-02-24
Abstract: An aqueous solution contains phosphate for producing layers of phosphate on metal surfaces selected from the group consisting of iron, steel, zinc, zinc alloys, aluminum and aluminum alloys. The solution contains 0.3 to 5 g Zn2+/1, 0.1 to 2 g nitroguanidine/1 and 0.05 to 0.5 g hydroxylamine/l, with an S-value amounting to 0.03 to 0.3 and the ratio of the weight of Zn2+ to P2O5=1:5 to 1.30.
Patent KR-20010041641-A (KR)
Title: 내부 파이프 인발장치
IPC: B66C1/56
Filed: 1999-02-10
Abstract: 본 발명은 내벽을 갖는 파이프에 사용하기 위한 내부 파이프 인발장치(10)에 관한 것이다. 본 장치에는 조임판(50, 52)을 중앙 미끄럼판(12) 바깥쪽으로 확장시키도록 적절하게 형성되어 중앙 미끄럼판(12)과 서로 접촉하는 적어도 하나의 조임판(50, 52)이 포함되어 있다. 조임판(50, 52)에는 파이프의 내벽과 접촉하는 다수의 링(74, 76)이 포함되어 있다. 또한, 본 장치에는 고리 또는 케이블이 부착되어 본 장치를 빼낼 수 있는 중앙 미끄럼판(12)에 부착된 풀링 아이(92)가 포함되어 있다.
Patent KR-20010043965-A (KR)
Title: 예비 세정 챔버용 페디스틀 절연체
IPC: H01J37/20
Filed: 1999-05-26
Abstract: 본 발명은 일반적으로 예비 세정 챔버 및 다른 에칭 챔버에서 기판의 이면 스퍼터링을 최소화하는 장치를 제공한다.  본 발명은 또한, 공정 키트의 표면 상에 형성된 박막으로부터 물질의 박리를 감소시키고 공정 키트의 명기된 수명을 연장시키는 장치를 제공한다.  본 발명의 한 양상은, 기판의 중앙부와  접촉하는 지지 페디스틀, 지지 페디스틀을 둘러싸는 절연체로 이루어지는 기판을 지지하는 장치를 제공하며, 이러한 절연체는, 기판의 주변 에지로부터 연장하는 경사부를 구비한다.
Patent KR-20010053011-A (KR)
Title: 이동 전화 장치에서 호출 발신
IPC: H04Q7/38
Filed: 1999-06-17
Abstract: 전화, 특히 사용자로 하여금 2가지 동작 모드 중 하나를 설정시키게 하는 이동 전화가 설명된다. 하나의 모드에서, 특정 디지트 같은 하나의 특정 문자가 전화 걸리면, 다이얼 넘버는 구내 번호 계획 넘버로 취급되고, 또 다른 모드에서, 다른 특정 문자가 전화 걸리면, 넘버는 외부 넘버로 취급된다.
Patent KR-20010053278-A (KR)
Title: 플라즈마 처리 방법
IPC: H01L21/31
Filed: 1999-06-28
Abstract: 본 발명은 예컨대 예열을 행하고 나서 박막을 형성하는 경우에 예열 시간을 단축시키는 것을 목적으로 한다. 
     예열시와 박막 형성시와의 사이에서 주 전자 코일(26) 및 보조 전자 코일(27)의 전류치를 바꿈으로써 얻어지는 자계의 형상을 변화시키고, 박막 형성시에는 균일성이 크지만 자속 밀도가 작은 자계, 예열시에는 균일성은 작지만 자속 밀도가 큰 자계로 한다. 이 결과, 박막 형성시에는 웨이퍼(W)의 면내에서 거의 균일한 플라즈마가 발생하기 때문에 균일한 박막 형성 처리를 행할 수 있다. 한편, 예열시에는 균일성은 나쁘지만 플라즈마 밀도가 박막 형성시보다 큰 플라즈마가 발생하기 때문에 웨이퍼(W)로의 입열량(入熱量)이 박막 형성시보다 많아져 예열 시간을 단축할 수 있다.
Patent KR-20020061667-A (KR)
Inventor: KIM SANG PIL
IPC: F15B3/00
Filed: 2001-01-17
Abstract: PURPOSE: A water jet intensifier is provided to prevent hydraulic fluid from invading toward pressure water by separating a piston rod into a motion part of a hydraulic fluid chamber and a motion part of a pressure water chamber. CONSTITUTION: A cylinder in a pressure water chamber(4) reciprocates by hydraulic fluid(10) supplied and discharged from hydraulic coupling holes(11). The piston rod pushes pressure water(20) in the pressure water chamber and makes high pressure water. Separation space(30) has the length as the stroke distance of a piston(1) and has function of completely separating the piston rod into a motion part of a hydraulic fluid chamber and a motion part of a pressure water chamber. Therefore, hydraulic fluid is prevented from invading toward pressure water, with hydraulic fluid stuck on the piston rod.
Patent KR-20010087159-A (KR)
Inventor: KIMURA YASUHIRO
IPC: H01L23/544
Filed: 2001-01-17
Abstract: PURPOSE: To prevent the yield from towering due to slip. CONSTITUTION: Dicing lines 5 are arranged being superposed on slips 4 such that the slips 4 extend in the dicing lines 5.
Patent KR-20010076416-A (KR)
Title: Ad conversion circuit
Inventor: KIMURA YASUYUKI
IPC: H03M7/16
Filed: 2001-01-20
Abstract: PURPOSE: To provide a high-speed analog/digital converter circuit that can attain a low voltage operation, micro processing and high circuit integration. CONSTITUTION: The analog/digital converter circuit is provided with loopback circuits 2a-2c that respectively receive an analog signal pair and a reference voltage pair and provide an output of a looped-back differential current pair, comparators 3a-3c that compare the difference current pair outputted from the loopback circuits and provide an output of a high-order 3-bit gray code, sine wave generating circuits 4a-4d that provide an output of a 4-phase sign wave pair, an interpolation circuit 5 that interpolates between the 4-phase sign wave pairs and outputs 32-sets of sign wave pairs, a comparator 6 that respectively compares the sign wave pairs, and a gray code encoder 7 that converts an output of the comparator 6 into a low-order 5-bit gray code.
Patent KR-20020067213-A (KR)
Title: method for reinforcing horizontal support force of steel pipe pile
Inventor: LEE GANG UN
IPC: E02D5/28
Filed: 2001-02-16
Abstract: PURPOSE: Provided is a horizontal bearing capacity reinforcement of steel pipe pile to reinforce steel pipe pile area on which a maximum bending moment is acted and improve horizontal bearing capacity of steel pipe pile by controlling cast contents of reinforcement concrete according to pitch between bedplate and sole plate. CONSTITUTION: The horizontal bearing capacity reinforcement of steel pipe pile(110) comprises the following steps as: supplying arrangement of bars connected with many movable vertical reinforcing bars(140) between sole plate(120) fixed to the upper part of the steel pipe pile(110) and bedplate(130) installed inside the steel pipe pile; controlling distance between the sole plate(120) and the bedplate(130) of the bar arrangements; inserting the bars into the upper part of the steel pipe pile(110) and fixing the sole plate(120) of the bar arrangements to the steel pipe pile(110); and casting reinforcing concrete on the bedplate of the bar arrangements installed inside the steel pipe pile(110) to certain height and curing.
Patent KR-20020067767-A (KR)
Title: Personal effects massage a pillow
Inventor: SHIN SUK KYUN
IPC: A61H23/02
Filed: 2001-02-19
Abstract: PURPOSE: A potable cushion for massage capable of gently massaging the waste by placing on a seat of a train or bus during a journey or in an office chair and containing a massage device driven by a battery is provided which can easily relieve the fatigue of a user as well as having excellent retention of cushioning properties. CONSTITUTION: This portable cushion(1) contains a massage device(10) with a motor, a buffering material(2) having a space part(3) in its inside and an outer skin in its outside and a protrusion(1a) formed at the outer skin of the cushion, wherein the massage device comprises a motor, cam, battery, press switch and push button.
Patent KR-20020069286-A (KR)
Inventor: YOO HYEONG SEOK
IPC: G06F3/02
Filed: 2001-02-24
Abstract: PURPOSE: A balloon type keyboard is provided to make a carrying simply by selectively decreasing a volume thereof. CONSTITUTION: An air injection hole(13) for injecting or discharging an air selectively is mounted at one side of a balloon type keyboard(10). A connector(14) for being electrically connected to a terminal of a desktop PC or a mobile PDA is mounted at one side of a balloon type keyboard(10). A key button unit(11) of a plurality of key buttons shape is formed at the upper portion of the keyboard(10). A character or a numeral is printed on each key button unit(11). If an air is injected through the air injection hole(13), the key button unit(11) is protruded toward the upper side and formed as a predetermined key button shape. The inside skin is attached on an inner side of the keyboard(10) for securing a predetermined air injection space in the outer skin having the key button unit(11) at the inner side of the keyboard(10).