baber/WOPTO huggingface dataset:
Patent KR-20030039298-A (KR)
Title: Method of servo track writing and apparatus adopting the same
Inventor: IVANOV NIKOLLAY
IPC: G11B5/596
Filed: 2002-11-08
Abstract: PURPOSE: A servo track recording method and system of a hard disk drive are provided to offer an inexpensive and stable servo track recording system. CONSTITUTION: A reference disk having a plurality of tracks including servo information and a servo-copy disk(120) are combined with a spindle motor of a servo track recording system. The servo information of the reference disk is read with a reading head(110) of the servo track recording system. The servo information is recorded in the copy disk using a recording head of the servo track recording system before the servo-copy disk is integrated into a hard disk assembly. The reference disk and the servo-copy disk are rotated using a hydromechanical bearing spindle. The servo information is recorded in the copy disk in such a manner that a plurality of burst signals for judging the position of a drive head are recorded in the disk.
Patent KR-20040043649-A (KR)
Title: System for producing polymers and producing method of polymers using the same
Inventor: HONG MU HO
IPC: C08F2/01
Filed: 2002-11-19
Abstract: PURPOSE: A polymer preparation system and a method for preparing a polymer by using the system are provided, to obtain a styrene-based polymer powder of syndiotactic structure by minimizing the dead space inside a reactor and preventing a polymer from being clotted on the inner wall of a reactor and a stirring instrument. CONSTITUTION: The polymer preparation system comprises a mixer which mixes materials for the preparation of a polymer; and a reactor which generates a polymer by using the mixture obtained from the mixer. The reactor comprises a main body(10) which has an inner space and comprises (i) an injection hole(11) where the mixture(b1) is injected and (ii) a discharge hole(12) where reaction products(c1) are discharged; a stirring instrument(20) which is placed inside the main body to stir the mixture; and a temperature control part(30) which is connected with the main body and controls the reaction temperature by circulating a heat medium oil(h) along the outer wall of the main body. The stirring instrument comprises an outer axis fixed to the main body and placed inside the main body; an inner axis which is inserted inside the outer axis and rotates; a rotating stirring cylinder which is connected with the inner axis, is placed inside the main body and rotates with the engagement of the rotation of the inner axis; a plurality of outer wings which are placed on the outer circumference of the stirring cylinder and is arranged between the inner wall of the main body and the outer circumference of the stirring cylinder; a plurality of inner wings which are placed on the inner circumference of the stirring cylinder and is arranged between the inner circumference of the stirring cylinder and the outer axis; and a fixed wing which is fixed to the outer circumference of the fixed axis and is arranged between the inner circumference of the stirring cylinder and the outer axis.
Patent KR-20030045598-A (KR)
Inventor: NONAKA MANABU
IPC: F04D29/08
Filed: 2002-11-26
Abstract: PURPOSE: To prevent a damage caused by a contact between a rotor and a stator at the time of operation of a pump and to prevent a reduction of a compression performance of the pump by maintaining sealing properties of both members. CONSTITUTION: In the screw groove pump mechanism part PB, a returned structure constituted by a rotor 18 of a multiple cylinder comprising an inner cylinder rotor 18-1 and an outer cylinder rotor 18-2, and a stator 24 of a multiple cylinder comprising an inner cylinder stator 24-1 and an outer cylinder stator 24-2 is adopted. Gaps g1, g3 partitioned by an outer wall surface of the rotor 18 and a wall surface of the stator 24 at the time of stopping of the pump and a gap g2 partitioned by an inner wall surface of the cylinder part of the rotor 18 and the wall surface of the stator 24 are formed such that they become larger as they are spaced from an axis L of the rotor and they are set so as to be g1>g2 and g1>g3. Thereby, even if a displacement of the rotor 18 caused by a centrifugal force and a thermal expansion occurs at the time of operation of the pump, a predetermined clearance can be ensured.
Patent KR-20040048066-A (KR)
Title: Method of waterproof for jean
Inventor: CHO HYON DOO
IPC: D06M15/256
Filed: 2002-12-02
Abstract: PURPOSE: Provided is a water-repellent treating method for jean clothes, by which jeans clothes hardly become dirty, and time needed for drying the jean clothes after cleaning is reduced. CONSTITUTION: The water-repellent treating method for jean clothes comprises dipping finished jean clothes into a water-repellent so that the jean clothes and threads for sewing are aged to be impregnated with the water-repellent, spin-drying the jean clothes, and drying the jean clothes rapidly. The water-repellent comprises 5-20 parts by weight of a teflon water-repellent or a fluoro-based durable water-repellent in 100 parts by weight of water.
Patent KR-20040048202-A (KR)
Title: A sterilizing agent for bean sprout or green bean sprout and a method for cultivating of bean sprout or green bean sprout using the same
Inventor: PARK SOON WOONG
IPC: A01N33/12
Filed: 2002-12-02
Abstract: PURPOSE: A method of culturing seeds of bean sprouts or green bean sprouts with a disinfectant containing a quaternary ammonium chloride compound as main material is provided. The disinfectant is convenient to use and high in safety while having excellent controlling effects against spoilage-causing bacteria of bean sprouts and thus effective in improving the quality and productivity of bean sprouts. CONSTITUTION: The disinfectant for seeds of bean sprouts or green bean sprouts contains any one component or a mixture thereof selected from n-alkyldimethylbenzyl ammonium chloride of formula 1 and n-alkyldimethylethylbenzyl ammonium chloride of formula 2 in a ratio of 1:1 to 2:1. In formula, R is C12-18 or C12-14. To prevent spoilage of bean sprouts or green bean sprouts, seeds of bean sprouts or green bean sprouts are soaked in the disinfectant, or the cultivation vessel of bean sprouts or green bean sprouts is disinfected with the disinfectant.
Patent KR-20040050295-A (KR)
Title: A portable torque transducer
Inventor: JANG HUN
IPC: G01L5/00
Filed: 2002-12-10
Abstract: PURPOSE: A portable torque transducer is provided to improve reliability of the portable torque transducer by mounting the portable torque transducer on a front end of a driving shaft of an automatic nut runner. CONSTITUTION: A portable torque transducer is mounted on an automatic nut runner. The portable torque transducer includes a detection block(11) and four strain gauges(13). The detection block(11) has a circular sectional shape. A center of the detection block(11) is depressed in a concave shape and both sides of the detection block(11) are protruded in a convex shape. The strain gauges(13) are formed at an outer peripheral portion of the center part of the detection block(11). An upper connection block(15) is provided to connect an upper end of the detection block(11) to a front end of a driving shaft.
Patent KR-20040051280-A (KR)
Title: Apparatus for installing product
Inventor: HONG SANG GIL
IPC: H05K5/02
Filed: 2002-12-12
Abstract: PURPOSE: An apparatus for loading a product is provided to protect the product from the external shock by maintaining firmly a coupling structure between the product and a support unit. CONSTITUTION: An apparatus for loading a product includes a first loading unit and a second loading unit. A support unit includes a bottom plate on which a product is loaded. The first loading unit(20) is installed on the bottom plate. The first loading unit includes a rotary hook(58) and a hook-operating device for rotating the rotary hook. The second loading unit includes a locking pin. The second loading part is coupled to the first loading part by the locking pin when the rotary hook of the first loading unit is rotated to an upper part. The second loading part is decoupled from the first loading part by the locking pin when the rotary hook of the first loading unit is rotated to a lower part.
Patent KR-20040052435-A (KR)
Title: Method and device for rotating intake for a automobile
Inventor: JUNG MIN YEONG
IPC: F02M35/10
Filed: 2002-12-17
Abstract: PURPOSE: A device and a method for converting the direction of an intake hole are provided to convert the direction of an intake hole according to the weather and an engine rpm for improving the intake efficiency and the fuel ratio. CONSTITUTION: A device for converting the direction of an intake hole includes an intake tube(10) rotatably mounted to an end of a tube way(13) communicated to an air cleaner(11). A driving motor(20) selectively rotates the intake tube. A rain/snow drop sensor(30) recognizes the snowing or raining weather. A control part(40) selectively rotate the intake tube according to the signals output from the rain/snow drop sensor and the engine rpm.
Patent KR-20030053050-A (KR)
Title: Methods and apparatus for using multiple reassembly memories for performing multiple functions
Inventor: BOUCHARD GREGG A
IPC: H04L12/701
Filed: 2002-12-20
Abstract: PURPOSE: A processing system, and a method and an apparatus for using the same are provided to use multiple reassembly memories for performing multiple functions. CONSTITUTION: A processor 1(104-1) performs the first function. A PDU(Protocol Data Unit) memory 1(108-1) stores received packets. At least a portion of the packets stored by the PDU memory 1(108-1) is usable by the processor 1(104-1) in accordance with the first function. A processor 2(104-2) performs the second function. A PDU memory 2(108-2) coupled to the processor 2(104-2) stores at least a portion of the same packets stored in the PDU memory 1(108-1). At least a portion of the packets stored in the PDU memory 2(108-2) is usable in accordance with the second function.
Patent KR-20030055121-A (KR)
IPC: B41J2/01
Filed: 2002-12-23
Abstract: 기판의 발수화 처리에는 불소 플라즈마를 대기압 또는 진공중에서 걸거나, 불소 알킬 처리제로 코팅하는 방법이 있지만, 품이 들며, 이물이 부착한다.  기판 표면에 불화물 함유 가스를 흘리면서 자외선을 조사하여 발수화 처리한다.  또 이 방법에 의해, 격벽내에 박막을 형성하거나, 액상법에 의한 유기 EL 장치를 제조한다.  구체적으로는 마찰 세정, UV 오존 세정, 자외선 불소화 처리, 잉크젯법에 의한 유기막 제막, 음극 제막, 밀봉을 행한다.
Patent KR-20040057597-A (KR)
Inventor: JUN IN SU
IPC: H01L23/488
Filed: 2002-12-26
Abstract: PURPOSE: A method for packaging a semiconductor device is provided to be capable of preventing crack of a BCB(BenzoCycloButene) layer as a solder mask. CONSTITUTION: A fix layer(120) and a photoresist pattern are sequentially formed on a semiconductor chip(100). A side solder mask made of BCB is formed at both sides of the photoresist pattern. A copper runner film(160) is filled between the side solder masks. The second solder mask is formed on the resultant structure. By selectively removing the second solder mask, a remaining solder mask is formed between the photoresist patterns. A barrier solder mask(170b) is formed by selectively etching the remaining solder mask. Solder masks(190) are formed on the barrier solder mask.
Patent KR-20040059866-A (KR)
Title: Cold trap of a sputtering apparatus
Inventor: KIM DAE HO
IPC: H01L21/203
Filed: 2002-12-30
Abstract: PURPOSE: A cold trap of a sputtering apparatus is provided to be capable of removing rapidly frost attached at the cold trap. CONSTITUTION: A cold head(120) is formed in a case(110) to circulate cooling gas. A cold panel(130) is coupled to the cold head for cooling exhaust gas. A panel temperature sensor(140) is located in the cold panel for measuring the temperature. A gas spray tube(150) is located through the case for spraying gas to the cold panel. A spray tube heater(160) is formed in the gas spray tube for heating the gas spray tube. A controller(170) receives the temperature sense signal from the panel temperature sensor, supplies gas to the gas spray tube and drives the spray tube heater.
Patent KR-20040060167-A (KR)
Title: Low power push-pull amplifier
Inventor: LEE DONG UK
IPC: H03F3/26
Filed: 2002-12-30
Abstract: PURPOSE: A low-power push-pull amplifier is provided to reduce the current consumption by removing the quiescent current from an output terminal in a standby state. CONSTITUTION: A low-power push-pull amplifier includes an amplifier, a first common source amplifier, and a second common source amplifier. The amplifier(10) is used for comparing a reference voltage with an output voltage and outputting a pull-up signal and a pull-down signal of different voltage levels according to a compared result. The first common source amplifier(11) is used for amplifying the first voltage of a pull-up driver by outputting the first voltage control signal when the pull-up signal is in the enable state. The second common source amplifier(13) is used for amplifying the second voltage of a pull-down driver by outputting the second voltage control signal when the pull-down signal is in the enable state.
Patent KR-20020026596-A (KR)
IPC: G10K15/02
Filed: 2001-06-18
Abstract: A communications system comprises at least one beacon device capable of wireless message transmission and at least one portable device capable of receiving such a message transmission. The beacon is arranged to broadcast a series of inquiry messages each in the form of a plurality of predetermined data fields (INQ) arranged according to a first communications protocol, such as Bluetooth. For the delivery of additional data via broadcast, the beacon adds to each inquiry message prior to transmission an additional data field (BCD) carrying audio data, with the portable device receiving the transmitted inquiry messages, reading the audio data from the additional data field, and reproducing the audio to a user.
Patent KR-20020067545-A (KR)
Title: 레플루노마이드의 신규 제조 방법 및 이의 신규 결정형
IPC: A61K9/48
Filed: 2000-12-14
Abstract: 본 발명은 신규 레플루노마이드 III형과, 이의 제조 방법을 개시한다. 또한, 본 발명은 레플루노마이드 II형을 제조하는 경제적인 방법과 레플루노마이드 III형으로부터 레플루노마이드 I형을 제조하는 방법도 제공한다. 신규 형태의 결정을 함유하는 약학 조성물 및 제형과, 류마티스성 관절염의 치료에 이를 사용하는 방법도 개시되어 있다.
Patent KR-20020063228-A (KR)
Title: 항균제로서 리포펩티드
IPC: A61K45/00
Filed: 2000-12-15
Abstract: 본 발명은 신규 리포펩티드 화합물들에 관한 것이다. 또한 본 발명은 이들 화합물의 약학 조성물 및 이들 화합물을 항균성 화합물로 사용하는 방법에 관한 것이다. 또한, 본 발명은 이들 신규 리포펩티드 화합물 및 이들 화합물을 생산하는데 사용되는 중간체의 생산 방법에 관한 것이다.
Patent KR-20030009346-A (KR)
IPC: A01N61/00
Filed: 2001-01-29
Abstract: 본 발명은 생물학적 활성을 가진 물질의 전달을 위한 제품, 그러한 제품을 제조하는 방법, 및 그러한 제품을 사용하여 동물을 치료하는 방법을 특징으로 한다.
Patent KR-20020072298-A (KR)
Title: 연료 분사 밸브
IPC: F02M61/20
Filed: 2001-11-30
Abstract: 특히 혼합물 압축식 외부 점화 내연 기관의 연소실에 연료를 직접 분사하기 위한 연료 분사 밸브(1)가 액추에이터(10), 상기 액추에이터(10)에 의해 작동될 수 있으면서 밸브 시이트 바디(5)에 형성된 밸브 시이트 표면(6)과 함께 밀봉 시이트를 형성하는 밸브 폐쇄 바디(4)의 작동을 위한 밸브 니들(3), 그리고 밸브 시이트 바디(5)내에 형성된 다수의 분사구(7)를 포함한다.  밸브 폐쇄 바디(4)의 하류측 리세스(36)내에 댐핑 엘리먼트(37)가 배치된다.
Patent KR-20020080409-A (KR)
Title: 합금 첨가제용으로 철과 주기율표의 5족 또는 6족 원소 중적어도 하나를 추가로 함유하는 괴상물
IPC: C22C38/12
Filed: 2000-07-17
Abstract: 본 발명은 철과, 주기율표의 5족 또는 6족 원소 중 적어도 하나를 추가로 함유한 괴상물에 관한 것으로서, 기공률이 20~65 부피%, 특히 30~45 부피%인 괴상물에 관한 것이다.  따라서 금속 용융체내의 괴상물이 빠르게 용융된다.
Patent KR-20020081594-A (KR)
Title: 가요성 디스플레이
IPC: G02F1/09
Filed: 2001-03-13
Abstract: 디스플레이는 자기적으로 제어 가능한 반사성을 갖는 픽셀들을 포함한다.  픽셀들은 한 쌍의 가요성 비도전성 시트 사이에 형성된다.  자기적으로 제어 가능한 픽셀들 각각은 상기 가요성 비도전성 시트들 사이에 위치된 가요성 링을 포함한다.  자기적으로 제어가능한 픽셀들 각각은 가요성 링 내에 위치된 자성 입자들도 포함한다.  상기 가요성 비도전성 시트들에 대한 자성 입자들의 위치는 픽셀의 반사성을 결정한다.  본 디스플레이는 휴대용 전자 장치와 관련하여 사용하기에 특히 적합하다.
Patent KR-20020089463-A (KR)
Title: 모듈형 선별기
IPC: B65G49/00
Filed: 2001-04-10
Abstract: 본 발명은 특정한 웨이퍼 제조 작업에 의해 요구되는 바와 같이 로드 포트 어셈블리들을 추가하거나 제거하기 위해서 모듈형 구획부가 용이하게 추가되고 제거될 수 있는 모듈형 선별기에 관한 것이다. 일 실시예에서, 본 발명에 따른 모듈형 선별기는 선별기, 웨이퍼 핸들링 로봇, 한 쌍의 정렬기 및 중앙집중 제어기를 위한 소환경을 한정하는 2-와이드 모듈형 구획부를 포함한다. 일 실시예의 모듈형 구획부는, 컨테이너 또는 개방 카세트를 받기 위하여, 그리고 선별기의 소환경 내에서 웨이퍼를 처리하도록 선별기의 소환경으로 카세트를 제공하기 위하여, 나란히 있는 한 쌍의 로드 포트 어셈블리를 포함한다. 본 발명은 제거 가능한 단부 패널을 또한 포함한다. 선별기에 추가적인 모듈형 구획부를 추가해야 할 때, 단부 패널은 제거되고 커넥터 프레임에 의해 대체된다. 커넥터 프레임은 하나의 로드 포트 어셈블리 혹은 두 개의 로드 포트 어셈블리들을 포함하는 추가적인 모듈형 구획부가 원래의 모듈형 구획부에 부착되게 한다. 모듈형 구획부들의 모든 전원 및 제어 구성 요소는 바람직하게 중앙집중 제어기에 위치된다. 추가적인 모듈형 구획부의 부착과 동시에, 추가의 구획을 위한 전원과 신호 연결은 제어기에 플러그로 접속된다. 그 다음에, 제어기는 추가의 구획을 인식하고 3-와이드 선별기 또는 4-와이드 선별기로서 작동하도록 전체 작동 체계를 변경시킨다.
Patent KR-20030013442-A (KR)
IPC: H04N1/21
Filed: 2001-05-30
Abstract: 디지털 복사기, 스캐너, 프린터, 팩시밀리 장치, 휴대 전화, 액정 프로젝터, TV 수신 장치 등에 대한 화상 및 텍스트 데이터의 입력 및 출력을 오프라인으로 자동적이며 고효율로 행할 수 있는 휴대형 기억매체 및 이것의 기록장치를 제공한다.  복수의 데이터 파일이 저장됨과 동시에, 복수의 데이터 파일 중 지정된 복수의 데이터 파일에 대해 각각 소정의 처리를 실행하기 위한 작업 정보가 1개의 작업 파일에 통합되어 저장된 휴대형 기억매체에서, 작업 파일은, 복수의 작업 정보를 저장하기 위해 각각이 고정 사이즈로 규정된 복수의 작업 정보 블록을 구비하고, 복수의 작업 정보 블록 각각은, 그 작업 정보 블록이 사용 중인지의 여부를 나타내는 작업 정보  블록 사용 식별 정보를 포함한다.
Patent KR-20040063409-A (KR)
Inventor: JANG SEON HUI
IPC: G06F12/14
Filed: 2003-01-07
Abstract: PURPOSE: An image storage of a PDA(Personal Digital Assistant) preventing the filename collision of an image file and a collision preventing method thereof are provided to store all image files in one folder and prevent the filename collision of the image file while a DCF(Design rule for Camera File system) rule is applied to the PDA. CONSTITUTION: An input part(100) receives the image file and/or the filename. A memory(300) stores the inputted image file and/or filename. A controller(200) generates the filename if the filename of the inputted image file is not inputted, and stores the image file and the filename to the folder of the memory. If the inputted filename is presented in the previously stored filename, the controller changes/stores the filename of the inputted image file in the folder.
Patent KR-20040064845-A (KR)
Inventor: JUN DONG HO
IPC: H04M15/00
Filed: 2003-01-10
Abstract: PURPOSE: A method of controlling a mobile communication terminal and a controlling method thereof are provided to use plural prepaid cards, and to automatically select the cheapest prepaid card if a user inputs a telephone number of other party, thereby reducing telephone charges. CONSTITUTION: A mobile communication terminal previously inputs card access numbers and card numbers in a sub memory(S30). If a user inputs a telephone number through a key input unit(S31), an MSM of the mobile communication terminal senses the inputted telephone number(S32), and automatically selects the cheapest communication card relative to the inputted telephone number(S33). The MSM automatically delivers a card number and an access number of the selected card to an exchange(S34). If the card number and the access number are authenticated in the exchange(S35), the inputted telephone number is delivered(S36). A call is made through a PSTN(S37).
Patent KR-20040066308-A (KR)
Inventor: HONG YEON UI
IPC: H01L21/027
Filed: 2003-01-17
Abstract: PURPOSE: A partial reflection mirror of a laser device for exposure is provided to extend the lifetime of a partial reflection mirror several times by transferring a mirror clamp in the right or left direction to transfer the position through which a laser beam passes when a specific portion of the partial reflection mirror is contaminated. CONSTITUTION: An opening is formed in a plate. A mirror clamp(124) is mounted on the plate. A partial reflection mirror(122) is installed in the mirror clamp. The mirror clamp is so installed in the plate to transfer in the right and left directions. Bolt holes(127a,127c) are formed in the plate to fix the mirror clamp by a bolt. At least two bolt holes are formed to change the position of the mirror clamp.
Patent KR-20040069829-A (KR)
Inventor: KIM EUN SUK
IPC: A61K8/97
Filed: 2003-01-30
Abstract: PURPOSE: A bathing composition containing herb medicines and bathing article using the same are provided, thereby improving humidity preservation and blood circulation in the skin, and whitening the skin. CONSTITUTION: The bathing composition contains herb medicines selected from Phaseoli radiati semen powder, Aurantii fructus and Angelicae gigantis radix. The bathing composition contains Phaseoli radiati semen powder, Acori Graminei Rhizoma, Dictamnus dasycarpus TURCZ., Schizonepeta tenuifolia Brig(Nepeta japonica Maxim.) and Glycyrrizae Radix. The bathing composition contains Citrus aurantum L., Prunus armeniaca l., Schizonepeta tenuifolia Brig(Nepeta japonica Maxim.) and Glycyrrizae Radix. The bathing composition contains Angelicae Gigantis Radix, Cnidium officinale, Mentha arvensis L., Japanese apricot(maesil), Lonicera japonica THUNB., Artemisia Vulgaris L.(mugwort), Eugenia caryophyllata THUNB., Acori Graminei Rhizoma, Schizonepeta tenuifolia BRIQ., and cocoon silk.
Patent KR-20040071474-A (KR)
Inventor: CHANG YONG CHAI
IPC: E02D5/30
Filed: 2003-02-06
Abstract: PURPOSE: A construction method for a concrete pile using geosynthetics packs is provided to form a circular section of a pile easily according to a design, to prevent the loss of concrete and to construct a pile smoothly and economically. CONSTITUTION: The construction method for a concrete pile using geosynthetics packs comprises the steps of setting up the center of a pile on the ground, inserting a steel pipe(1), excavating soil in the steel pipe, inserting a reinforcing bar assembly(3) covered with geosynthetics packs(2), then placing concrete.
Patent KR-20030024742-A (KR)
Inventor: SONG YEONG SIK
IPC: C23C14/22
Filed: 2003-02-24
Abstract: PURPOSE: A coating method of display element is provided in which thin film is adhered onto the Al-killed steel more stably even under deformation during processing due to fineness of the thin film by increasing cohesiveness and resolution and reducing doming effect in coating an alloy on Al-killed steel. CONSTITUTION: The method for coating display element by PVD (physical vapor deposition) is characterized in that 1 to 9 wt.% of a Ni-Fe alloy layer having a thickness of 4 to 20 micrometers is deposited on an Al-killed steel sheet for less than 8 seconds under the conditions that a coating power is 5 to 300 kW, voltage is 50 kV, and degree of vacuum is in the range of 1x10¬-4 to 1x10¬-5 torr, wherein thermal expansion of the Ni-Fe coating treated strip is slightly increased according to temperature increase and shows a constant value of 2.01x10¬3 micrometers, about 1/7 of a conventional Al-killed steel sheet, in the temperature range of 150 to 200 deg.C.
Patent KR-20040076983-A (KR)
Inventor: BAEK SEUNG JAE
IPC: H04R3/00
Filed: 2003-02-27
Abstract: PURPOSE: A digital wireless speaker system using a spectrum spread communication method is provided to transmit an audio signal and improve the sound quality by using a spectrum spread method as a digital modulation method. CONSTITUTION: A digital wireless speaker system using a spectrum spread communication method includes an audio transmitter and an audio receiver. The audio transmitter is connected to an audio generator in order to spread an audio signal of the audio generator, convert the audio signal to a transmitting signal of a setup channel, and transmit the converted audio signal. The audio receiver is connected to a speaker of the audio transmitter in order to receive a wireless signal from the audio transmitter, process an RF signal of the setup channel, and provide the audio signal to the speaker by performing a counter diffusion process.