baber/WOPTO huggingface dataset:
Patent KR-19990045947-A (KR)
Title: 황토를주재로한물정화용볼의제조방법
IPC: C04B18/10
Filed: 1999-02-25
Abstract: 본 발명은 종래에 생활용수나 식수로 사용하는 수도물은 댐이나 저수지에서 물을 저장하였다가 상수원수로 공급받아 정수장에서 정화 처리하여 가정의 물탱크나 아파트 단지에서는 지하 저장소에 유입시킨 후 사용하는 과정을 거치게 되었던바 상수원수의 수질은 고도의 산업화 과정에서 생성되는 각종 중금속, 농약, 세균등으로 많이 오염된 저급수 상태이므로 수용가에서는 수도물을 기피하는 현실에서 생수를 고가로 구입하여 식수 및 용수로 사용하므로서 경제적으로 부담이 되는 등의 폐단을 해소하기 위해 황토분말, 맥반석분말에 참나무 톱밥을 배합비로 혼합 반죽하여 금형틀에서 동일형상의 황토볼을 형성 건조한 후 900℃의 가열로에서 고체화 된 완제품을 제조하여 물탱크내에 침전시켜 물속에 함유된 중금속 및 유해한 성분을 황토분, 맥반석분, 참숯이 해독, 분해, 수질을 정화하여 깨끗한 물을 제공 해주므로서 건강증진에 큰 기여를 할 수 있도록 한 것임.
Patent KR-19990077526-A (KR)
Title: 부호분할다중접속통신시스템의순방향링크채널의통신장치및방법
IPC: H04B7/216
Filed: 1999-03-02
Abstract: 부호분할다중접속 통신시스템의 순방향 링크 채널의 통신장치가, 채널신호를 수신하는 채널수신기와, 수신되는 신호를 분석하여 통신중인 채널의 환경을 판단하며, 판단된 결과에 따른 부호화율 선택신호 및 직교부호 정보를 발생하는 제어부와, 송신 데이타를 선택된 부호화율에 따라 부호화하는 채널부호기와, 직교부호 정보에 따른 직교부호를 생성하여 부호화된 데이타를 확산하는 직교변조기를 구비하여, 채널환경에 따라 송신 데이타를 가변적으로 부호화 및 확산하는 채널송신기로 구성된다.
Patent KR-20000059579-A (KR)
Inventor: SIM YONG BO
IPC: A23B7/10
Filed: 1999-03-05
Abstract: PURPOSE: An error diagnosis device is provided which is placed at the kimchi storehouse to examine errors so that it reduces time in examining errors. CONSTITUTION: The kimchi storehouse comprises the parts of: a compressor to keep the storehouse temperature within the set temperature range as the input driving course; an error diagnosis selection button to select and input an error diagnosis course; a temperature detection sensor to detect the storehouse temperature; a display part to display whether it is an error or not; and a control part which drives the compressor till the storehouse temperature is reached a compressor pause temperature from normal temperature to measure driving time of the compressor and then sends error message to the display part if the storehouse temperature isn't reached the compressor pause temperature after the set time is passed.
Patent KR-20000060258-A (KR)
Inventor: SONG GI SOP
IPC: F25B41/00
Filed: 1999-03-12
Abstract: PURPOSE: An air conditioning cycle of an air conditioner is provided to reduce the power consumption and improve the cooling efficiency. CONSTITUTION: An air conditioning cycle of an air conditioner including a compressor(110) discharging a high-temperature and pressure refrigerant, a condenser(140) flowing in gas refrigerant discharged through a refrigerant pipe and forcedly cooling the refrigerant for liquefying by exchanging heat with air ventilated by a cooling fan, an expansion valve(150) decompressing the refrigerant condensed in the condenser, and an evaporator(170) cooling indoor air by taking heat from air ventilated by an indoor cooling fan when the decompressed refrigerant is evaporated, wherein the operation of the compressor is stopped in winter when the temperature deviation over a predetermined temperature is generated, and the refrigerant cooled by the cooling fan is condensed, liquefied, and thereafter provided to an evaporator by using sucking force, so that the refrigerant is evaporated by difference of the temperature with indoor temperature and the evaporated refrigerant is naturally cycled to the condenser by sucking operation.
Patent KR-19990078231-A (KR)
Title: 피지컬 변환 정의 편집 장치 및 피지컬 변환 정의 작성방법
IPC: H01L21/822
Filed: 1999-03-25
Abstract: 반도체 메모리의 물리 어드레스로부터 논리 어드레스를 얻는 피지컬 변환 정의를 작성하는 피지컬 변환 정의 편집 장치 및 피지컬 변환 정의 작성 방법을 개시한다. 물리 어드레스와 논리 어드레스의 설정 내용에 관한 어드레스 파라미터를 설정한 후에, 반도체 메모리의 1 또는 복수의 이웃하는 기억 셀을 구성 단위로 한 복수의 요소를 설정하고, 동시에 이들 각 요소에 대해 논리 어드레스를 지정함으로써 복수의 요소로 이루어지는 레이아웃을 작성한다.
Patent KR-19990064615-A (KR)
Title: 레이저 살균기능을 이용한 전동칫솔
IPC: A46B13/02
Filed: 1999-04-17
Abstract: 본  발명은  배터리에  접속되도록  칫솔본체에  내장되며  판형으로  이루어진  모터축의  단부가  칫솔대에  내입된  회전축의  결합홈에  분리·결합되도록  구성되어  있는  모터;  상기  칫솔대에  내입된  회전축의  결합편에  메인기어가  분리·결합되고  상기  메인기어가  격판으로부터  수직으로  절곡된  후크에  결합되는  회전체의  기어부에  치합되도록  배치되어  있는  동력  전달수단;  중앙에  레이저가  투과되는  투과공이  천공되고  전방에는  다수개의  칫솔모가  심겨져  있으며  후방에는  회전체의  결합홈에  결합되는  다수개의  후크가  형성되어  있는  칫솔모판;  상기  격판과  수직으로  절곡된  후크에  의해  형성되는  투과공의  후방에  설치되어  있으며  칫솔모판과  후크의  각  투과공을  통해  레이저를  조사하게  되는  레이저  살균수단; 으로  구성된  레이저  살균기능을  이용한  전동칫솔에  관한  것이다. 
     따라서  본  발명에  의하면,  치아와  잇몸  등에  잔류하는  이물질을  제거할  수  있을뿐만  아니라  치아와  잇몸  등에  기생하는  각종  세균을  살균하여  구강을  청결하게  유지할  수  있는  것이다.
Patent KR-20000073948-A (KR)
Inventor: SON HUNG UP
IPC: A44C9/00
Filed: 1999-05-17
Abstract: PURPOSE: An accessory having a switch and a production method thereof are provided, which has a switch to make the ring splendid by attaching a structure having a device for being luminary into the head of the ring. CONSTITUTION: The accessory having a switch is characterized by being comprised of: a ring(41); and a part for receiving(50) a part having a device for being luminary(10). In which, the part having a device for being luminary(10) is comprised of: a hollow space and a lid; the first electrode which is connected to a metal board(32) at the bottom inside the hollow space; and the second electrode connected to a metal screw.
Patent KR-19990068427-A (KR)
Filed: 1999-05-18
Abstract: 본 발명은 옥(玉) 과 맥반석의 표면에 금 또는 은 피막층을 접합시킨 장신구,장식품 및 그 제조방법에 관한 것으로써, 특히 인체에 유익한 원적외선 방사 및 생체활성화, 노폐물제거, 공해물질 흡착기능, 냄새제거 등의 효과를 지닌 광물질을 인체에 착용하는 장신구 및 장식품으로 가공하여 그 장식표면에 더욱 미려하고 부가가치가 높은 보석의 형태를 갖출 목적으로 금 또는 은 소재로 표면 피막층을 접합시킨 옥(玉) 과 맥반석의 표면에 금 또는 은 피막층을 접합시킨 장신구,장식품 및 그 제조방법에 관한 것이다. 우선, 옥 이나 맥반석의 광물질을 원하는 형상 및 그 형상에 도형 또는 문자를 성형하여 장신구 또는 장식품의 형태를 갖추어 그 소재면 전체 또는 특정부위에 금 또는 은의 피막층이 형성될 표면에 도전성잉크(예 아크릴계 등의 합성수지에 카본 또는 흑연, 은, 금, 필라듐 등의 도전성입자가 배합된 잉크)를 도포, 건조하여 옥(玉) 과 맥반석의 도금할 표면에 도전성을 부여한 후에 공지의 은 또는 금 도금방법(공지의 무전해도금, 전해도금)에 의해 도금피막을 형성하여 그 도금피막을 광택 가공한다. 이러한 옥이나 맥반석을 장신구 또는 장식품으로 가공하여 그 표면 전체 혹은 일정표면에 금 또는 은 소재로 도금 처리하여 더욱 미려한 장식효과를 제공하는 것이다.
Patent KR-19990068436-A (KR)
Title: 계절파악이가능한해시계
IPC: G04B19/26
Filed: 1999-05-19
Abstract: 본 발명은 계절파악이 가능한 시계로서, 24시간에 1회전하며, 말단부에는 중심에 대하여 동일한 각도로 24분할 눈금이 표시되어 있는 원형의 시판(時板)과; 상기 시판과 동일한 방향으로 24시간에 360.99°회전하며, 사전에 정해진 기준에 의해 일정한 각도로 분할된 눈금이 표시되어 있는 원형의 계절판;을 포함하며 상기 각 판들의 동축상에서 회전하는 시계이다. 
     본 발명의 시계는 월(月), 24절기 등 계절 상태와, 현재 태양의 상대고도 및 별자리의 위치를 간편하게 파악할 수 있게 한다.
Patent KR-20000074284-A (KR)
Title: Input buffer circuit
Inventor: SIM JAE YUN
IPC: H03K17/687
Filed: 1999-05-19
Abstract: PURPOSE: An input buffer circuit is provided, of which power consumption is small and operation speed is fast by mounting a current discharge element and a current supply element which have no DC leakage. CONSTITUTION: An input buffer circuit includes a differential amplifier(21) for generating an output signal having the phase that is opposite to that of an input signal at its output node in response to the input signal and a reference voltage, a current source connected between one end of the differential amplifier and the ground, a buffer(27) for delaying the output signal of the differential amplifier and buffering it, and a current supply means(23) for supplying current to the output node of the differential amplifier in response to the input signal and the output signal of the buffer. The current supply means reduces the raising time of the output signal of the differential amplifier. The input buffer circuit further includes a current discharging means(25) for reducing the falling time of the output signal of the differential amplifier.
Patent KR-19990068494-A (KR)
Filed: 1999-05-26
Abstract: 본 발명은 디지털카메라, Scanner등에 의해 컴퓨터로 불러들여진 이미지를 Database를 이용하여 체계적으로 저장하였다가 필요시 Printer로 출력, 또는 외부기억장치(CD-RW ZIP DRIVE등)에 별도로 저장 또는 전송 등에 관한 것으로, 더욱 상세하게는 공사현장 및 사진을 다량으로 촬영·관리하는 기관 및 업체에서 일반 광학용카메라를 이용하여 촬영-현상-인화-보관하는 방법을 탈피하여 디지털카메라, Scanner등 기타 컴퓨터의 외부 입력장치로부터 입력되어지는 BMP, JPG, PCX, TIF, TPL, TGA, PNG, PSD등 이미지화된 파일을 DATABASE로 체계적으로 저장하여 필요시 Printer출력, 외부기억장치 (CD-RW, ZIP DRIVE)에 별도 저장, 또는 컴퓨터 통신을 통한 전송등을 할 수 있도록 하는 것이다. 
     이를 위하여 본 발명은 입력되어지는 수많은 이미지들을 「예시, (건설현장 경우) 공사명, 공정명, 날짜, 위치, 내용 등에 의한 분류」 체계적으로 분류 저장하여 단시간내에 필요한 이미지를 찾아서 본 발명에서 규격화한 사진대지 형태로 출력 사용할 수 있으며, 외부기억장치 (CD-RW, ZIP DRIVE)에 별도 저장하여 앨범화할 수 있으며, 또는 컴퓨터 통신을 통한 전송등을 할 수 있도록 하는 것이다
Patent KR-20000005905-A (KR)
Title: Roll call tester
Inventor: MINEGOUJI
IPC: G11C29/00
Filed: 1999-06-04
Abstract: PURPOSE: A roll call tester is provided to reduce an area of a semiconductor chip by adding in a redundancy circuit a logic circuit which makes a roll call test signal inactivate a redundancy select signal even when a redundancy circuit is activated. CONSTITUTION: The roll call tester comprises: a data amplifier(4) which amplifies data of a normal cell or a redundancy cell(2) when the normal cell(1) or the redundancy cell(2) is selected and outputs the amplified data to a data output circuit(6); a data amplifier activating circuit(5) which outputs a data amplifier activation signal to the data amplifier(4) regardless of an existence of an operation of a roll call test; a test signal activating circuit(7) which outputs an activation roll cal test signal at the roll call test; and a redundancy circuit(3) which activates the normal cell(1) and inactivates the redundancy cell(2) when an assigned normal cell is addressed at an inactive state of the roll call test signal. The redundancy circuit(3) activates the redundancy cell(2) and inactivates the normal cell(1) when an assigned redundancy cell is accessed at an inactive state of the roll call test signal. In a case of an active state of the roll call test signal, the redundancy circuit(3) inactivates the normal cell(1) and activates the redundancy cell(2) when an assigned normal cell is addressed, and inactivates the redundancy cell(2) and the normal cell(1) when an assigned redundancy cell is accessed.
Patent KR-20010002160-A (KR)
Inventor: OH JAE CHUL
IPC: G01D11/24
Filed: 1999-06-11
Abstract: PURPOSE: A shielding apparatus of a recording system for a vehicle and a manufacturing method thereof are provided to secure the recording system to be stacked in a vehicle stably even in case of any accidents, thereby improving the reliability of the recording system. CONSTITUTION: A shielding apparatus of a recording system for a vehicle including a memory(22) for recording data on a printed circuit board(20), is formed with a first coating film(30) and a first protecting film(40) on a whole surface of the printed circuit board in sequence, a second coating film(50), a first buffering film(60) and a second buffering film(70) on the whole surface of the first protecting film in sequence, and a second protecting film(80) on the whole surface of the second buffering film, wherein an inner electric wave generating part is provided between the first and second buffering films for sending an electric wave to the outside and an outer electric wave generating part is provided between the second protecting film and the second buffering film so that a position of the recording system is recognizable even though the recording system is deviated from the vehicle in case of accidents.
Patent KR-20010002845-A (KR)
Inventor: HONG SEONG HAK
IPC: H01L23/02
Filed: 1999-06-18
Abstract: PURPOSE: A method for fabricating a wafer level package is provided to form a metal pattern of copper or aluminum without using sputtering or vacuum deposition processes. CONSTITUTION: A metal layer is deposited on an ultraviolet tape(20) which could be weakened to the ultraviolet ray. Then, the metal layer is patterned to form a metal pattern(30). A lower insulating layer(40) is coated on a surface of a wafer(10) consisting of a plurality of semiconductor chips. Then, the lower insulating layer(40) is etched so as to expose a bonding pad(11) of the semiconductor chip. The ultraviolet tape(20) is attached to the lower insulating layer(40). Then, the ultraviolet ray is radiated into the ultraviolet tape(20). After removing the ultraviolet tape(20), an upper insulating layer is coated on the lower insulating layer(40). A ball land is formed by etching the upper insulating layer. An auxiliary adhesive layer is formed on the ball land. The ball land is mounted on the auxiliary adhesive layer.
Patent KR-19990073258-A (KR)
Title: 진공청소기용연장관의슬라이딩장치
Filed: 1999-06-22
Abstract: 본 발명은 가정에서 사용하는 진공 청소기용 연장관의 슬라이딩 장치에 관한 것으로, 더욱 상세히는 통상의 진공 청소기에 슬라이딩 장치를 마련하여 모우터의 구동전달에 의해 연정관의 길이 조절을 수동으로 작동하던 방식에서 탈피하여 단순한 스위치 조작만으로 길이 조절이 가능하도록 한 진공 청소기용 연장관의 슬라이딩 장치에 관한 것이다. 
     본 발명은 연결관(9)의 내측으로 삽입하여 슬라이딩 결합되는 통상의 진공 청소기용 연장관(2)에 있어서, 
     연결관(9) 상측에 형성된 안치커버(13)에 모우터(3)를 안치하고 상기 모우터(3)와 결합된 워엄(15)과 워엄기어(5)를 구동이 원활하도록 맞물리게 형성하고 연결관(9)의 전방에 고정된 전방활차(7)에 와이어(4)를 걸어 후방활차(14)와 맞물려서 회전 가능토록 하고 상기 와이어(4)의 일측이 고정 연결된 홀더(6)로 연장관(2)을 고정시켜 모우터(3)의 구동에 의해 연장관(2) 길이를 전, 후 자동으로 줄이고 연장할 수 있도록 한 것에 요지가 있다.
Patent KR-20010016938-A (KR)
Inventor: HAN GWAN HEE
IPC: B09B3/00
Filed: 1999-08-05
Abstract: PURPOSE: Disclosed is a disposal method of garbage by raising duck effectively. CONSTITUTION: The method comprises the processes of collecting garbage(S1); screening collected garbage for removing foreign materials(S2); pulverizing screened garbage(S3); preparing auxiliary stuffs such as sawdust, rice bran, and wheat bran for hardening garbage(S4); mixing screened garbage with auxiliary stuffs(S5) at the ratio of 1 to 1.
Patent KR-20010017972-A (KR)
Inventor: KWON YUL
IPC: G06K19/10
Filed: 1999-08-16
Abstract: PURPOSE: A card approving apparatus confirming by a photograph and method thereof are provided to prevent a loss of card and a forgery by being transmitted photograph data corresponding to card information recorded in a card from an external server, thereby comparing and detecting the data to the card possession person. CONSTITUTION: An information providing server(10) compares a card information transmitted from a card reader(20) to current registrant card information, and offers the photograph of corresponding card possession person if the card is registrant. The card reader(20) reads card information and transmits the information to the information providing server(10), and displays photograph information and approval information transmitted from the information providing server(10) on a screen. The first communication network(30) connects the card reader(20) to the information providing server(10) for exchanging information interactively.
Patent KR-20010018269-A (KR)
Inventor: LIM JONG HUI
IPC: F28D1/00
Filed: 1999-08-18
Abstract: PURPOSE: A heat insulating tank is provided to prevent a heat insulating part from cracking due to long-time thermal expansion and contraction as well as to keep safety and durability regular even in long-time running. CONSTITUTION: Glass wool(12) between space bars(11) is closely adhered to the outer circumference of a tank(10). A heat insulating part(13) is formed in a space portion between the glass wool and an exterior finish(14). To manufacture a heat insulating tank, the plural space bars are arranged radially on the outer circumference of the tank. The space bars are closely adhered to the outer circumference of the tank by a reinforcing band(15) mounted on the tank lengthwise. The glass wool is filled between the space bars along the outer circumference of the tank. An exterior finish(14) is fixed by the reinforcing band and polyurethane is injected into a space portion between the glass wool and the exterior finish.
Patent KR-20010018444-A (KR)
Inventor: AHN SEUNG GWANG
IPC: H04N21/4788
Filed: 1999-08-19
Abstract: PURPOSE: A telephone system using CCTV converter is provided to store a telephone number by using a CCTV converter, display the stored telephone number to a television, and call up in the CCTV converter by using the stored telephone number, thereby providing convenience to the user. CONSTITUTION: The telephone system using CCTV converter includes following units. An EEPROM(150) stores various data required for the system, especially, telephone number information according to the control of a microcontroller(160). The microcontroller(160) controls each component part entirely according to the outside input signal, especially, stores telephone number information to the EEPROM(150) according to the user's manipulation, displays the stored telephone number information of the EEPROM(150) to a television(20) by controlling the image signal processing unit(130) and the EEPROM(150), and controls a telephone control unit(180) according to the user's selection, thereby calling the user to the selected telephone number through the telephone(200).
Patent KR-20010028341-A (KR)
Inventor: BAEK TAE IL
IPC: G02F1/1343
Filed: 1999-09-21
Abstract: PURPOSE: A method of making transparent conductive thin film is provided to reduce a target fabrication cost and to be coated on a plastic substrate, by making the transparent conductive thin film at a lower temperature below 200 deg.C using a powder target. CONSTITUTION: A direct current magnetron sputtering equipment is used in order to fabricate a transparent conductive indium tin oxide(ITO) film using a powder target. ITO powder(90wt% In2O3+10wt% SnO2) is inserted in a circular copper container of a two-inch size and then pressure is forced to the powder. A sola lime glass and a PET film are used as a substrate. When fabricating a thin film, the PET film of the substrate is not heated and a temperature is maintained at a room temperature(within 50 deg.C).
Patent KR-20010036184-A (KR)
Inventor: CHOI BI SEOK
IPC: G11B7/095
Filed: 1999-10-06
Abstract: PURPOSE: An automatic balancer for a disk is provided to maintain a balanced state as well as removing noise and servo error caused due to a conflict between an inner wall of a race space and a ball. CONSTITUTION: A clamper body(51) and a cover(53) are coupled to each other to form a predetermined race space(R) and rotated together with a disk. A plurality of balls(55) are inserted into the race space(R) and moved in a direction of radius and a direction of circumference. A magnet(57) is installed in an inside of the race space(R) and generates an attractive force attracting the balls(55). A ball control unit varies a height of the cover(53) according to a rotational velocity of the disk so as for a motion of the balls(55) to be controlled during the disk's low speed rotation. An elastic member(59) is attached to the cover(53) to from an outer wall of the race space(R). The elastic member(59) is outwardly deformed and slipped out of the clamper body(51), if the balls(55) are collided with the outer wall of the race space(R) because of the disk's high speed rotation, thereby reducing the height of the cover(53).
Patent KR-20010037177-A (KR)
Inventor: KIM YEONG TAE
IPC: H04N5/64
Filed: 1999-10-14
Abstract: PURPOSE: A switch assembly for preventing a discharge is provided to simply fix a main PCB to a bottom chassis and absorb an impact provided to a board. CONSTITUTION: A switch assembly has a frame(20) combined with a front case(11), in which a knob(26) and a transmission axis(27) are formed, and a spacer(30) having a guide flap, contacted with a tact switch(42). A plurality of square holes(21) are formed in the frame(20). A vertical rib(22) is projected at one side of an upper surface of the square holes(21). An upper elastic member(24) is formed at end of the vertical rib(22). A vertical rib is projected at the other side of a lower surface of the square holes(21), and a lower elastic member(25) is formed at end of the vertical rib(22). Ends of elastic members(24,25) are connected with a rear side of the knob(26) for operating a switch in the outside of the front case(11). The transmission axis(27) projected to a position of the spacer(30) is extended at a rear surface of the knob(26).
Patent KR-20010037378-A (KR)
Inventor: PARK BYEONG SUN
IPC: B60R13/08
Filed: 1999-10-16
Abstract: PURPOSE: A vehicle ceiling interior finish and the manufacturing method thereof enable each of the layers of interior finish to be reused without being separated on the manufacturing and wasting of the layers. CONSTITUTION: An interior finish(200) of vehicle extruded and foamed as a panel form is manufactured from a composition. The finish(200) is preheated by an oven(211). A buffering layer is formed by a high foaming of the resin of olefinic field. A cover material of two layers is formed by layering a surface layer on the buffering layer. One side surface of the finish(200) and the buffering layer are corresponded and they are inserted between cold molding metals. Thus, an adhesion, forming and cooling is implemented, thereby improving a working environment.
Patent KR-20010037392-A (KR)
Inventor: KIM SEOK TAE
IPC: H05B6/68
Filed: 1999-10-16
Abstract: PURPOSE: An abnormal operation sensing method for cooker parts is provided to prevent damage of the cooker due to the abnormal operation of the parts and fire due to the malfunction, wherein the malfunction of the parts is displayed for repair and a thermostat is omitted, reducing the manufacturing cost. CONSTITUTION: An abnormal operation sensing method or cooker parts includes the steps of recognizing a rated current according to the operation of a plurality of heaters and cooling fans and setting reference current values for heaters and the cooling fans for monitoring abnormal operation(100,103), controlling the driving of the heaters and the cooling fans, detecting a current used by the system, and comparing the detected current with the reference current values for determining abnormality of a load(118), wherein the heaters and the cooling fans are driven individually and the current values detected at this time are compared with the reference current values respectively for the determination of the abnormal load.
Patent KR-20010037415-A (KR)
Inventor: YANG YEONG JIN
IPC: H04N7/167
Filed: 1999-10-16
Abstract: PURPOSE: A method for child lock in an Internet television is provided to prevent a televiewer from watching a specific channel or program by locking the specific channel or program. CONSTITUTION: A micro computer sets the present time(200). A televiewer selects a specific channel for child lock and information according to the specific channel, and stores it in a memory(203). If the televiewer selects an arbitrary channel for watching television, the micro computer judges whether the child-locked channel exists, before controlling the receipt of the selected broadcasting channel. The micro computer judges whether the selected channel and the channel stored in the memory are equal(212). If equal, the equal channel is skipped(215). The operation of a system is stopped(218).