baber/WOPTO huggingface dataset:
Patent KR-20000071450-A (KR)
Title: 멀티프로브 유니트 및 그것을 갖춘 측정장치
IPC: G01R1/18
Filed: 2000-03-16
Abstract: 본 발명은, 도선과 절연물만으로 이루어진 피복 도선을 사용해도, 실용상 문제로 되지 않는 정도까지 외부로부터 침입하는 노이즈나 크로스토크를 저감하기 위해, 외부로부터의 지지가 가능한 기판과, 단부를 제외한 중간부위에 절연피복만이 실시된 중심도체를 갖추고, 이 중심도체의 일단부가 갈고랑이모양으로 구부러짐과 더불어 프로브가 형성된 다수의 피복 도선, 피복 도선의 프로브 선단을 도전패턴과 거의 같은 피치로 정렬시킴과 더불어 피복 도선의 일단부에 대해 중간부가 방사상으로 넓어지면서 인접하는 피복 도선의 중간부가 기판으로부터의 거리를 다르게 한 복수의 도선층을 형성하도록 피복 도선의 중간부를 기판에 고정하는 도선 고정부재 및, 도선층간에 삽입되고 도선층을 전자적으로 시일드하는 시일드판을 구비한 것으로서 구성한다.
Patent KR-20000036761-A (KR)
Inventor: KIM DAE GEUN
IPC: G06F17/30
Filed: 2000-03-28
Abstract: PURPOSE: A system for searching multimedia information is provided to have a user collect various kinds of information in a short time for sharing, by displaying a plurality of web pages by subjects, linked to respective search engines, on a home page screen of a web site of an information searching system. CONSTITUTION: A system for searching multimedia information comprises an information search interfacing element(20), a main search engine element(21), a registering data element(23), a data element(24), a character editing element(27), a plurality of web pages by subjects(7, 8, 9, 10) and search engines by subjects(3, 4, 5, 6). In the information search interfacing element, an internet information searcher connects to search information. The main search engine element has the searcher input searching language for the first time to search a web site of related information, and collect data from the exterior data element. The registering data element is stored in a database pool of an operating server element. The data element is equipped with an automatic data classifying element and a data managing tool element. The character editing element copies and outputs searched information. The web pages by subjects are linked to the data element and character editing element. And the search engine elements by subjects are respectively linked to a plurality of the web pages by subjects.
Patent KR-20010097213-A (KR)
Inventor: HONG JI PYO
Filed: 2000-04-20
Abstract: 이 발명은 네트워크를 통한 공동 구매 시스템 및 그 방법을 개시한다. 구매자가 네트워크를 통해 접속하여 판매자가 판매하는 물품에 대하여 구매 수량을 포함하는 입찰 정보를 입력하면, 입찰 처리 서버가 구매 수량에 따라 해당 물품을 판매하는 판매자의 총 매출액을 가산처리 한다. 그리고 판매자가 제시한 매출액 대비 할인율 정보를 토대로 하여 판매자의 총 매출액에 따른 할인율을 설정한다. 이 때, 해당 물품의 총 구매 수량에 따라 할인율을 다르게 적용하는 개별 할인 방식을 이용하여 해당 물품의 할인율을 설정할 수도 있으며, 이 경우에는 판매자의 총매출액에 따라 설정된 할인율과 개별 할인 방식에 따라 설정된 할인율 중에서 보다 큰 할인율을 선택하여 물품의 가격을 할인할 수도 있다. 다음에, 설정된 할인율에 따라 구매자가 입찰한 물품의 가격을 할인한 후 해당 가격 정보를 구매 장치로 제공하여 구매자가 입찰한 물품을 할인된 가격으로 구입하도록 한다. 따라서, 물품 특성상 그 종류수가 많고 수요의 폭도 넓기 때문에 공동 구매의 활성화가 어려운 물품에 대해서도 공동 구매가 이루어짐에 따라 구매자는 보다 저렴한 방식으로 물품을 구입할 수 있으며, 판매자는 적절한 가격으로 보다 많은 구매자를 확보할 수가 있다.
Patent KR-20000049716-A (KR)
Title: Elctromanetic wave singal lamp
Inventor: KIM DONG KWON
IPC: H04B1/38
Filed: 2000-04-25
Abstract: PURPOSE: An electromagnetic wave signal lamp is provided to reduce electromagnetic wave damage, so that a subscriber can identify a call-connected status with eyes by watching a liquid crystal panel of a cellular phone, when the subscriber calls in a noisy area or calls other person. CONSTITUTION: An electromagnetic wave signal lamp turns red when a subscriber calls other person and a telephone line of the person is busy. When a signal is transmitted, the signal lamp turns yellow. When the person picks up the phone, the signal lamp turns blue. If the subscriber wants a memory, light turns in an arrow. Characters and colors are displayed in a liquid crystal screen. Information such as news, weather, stocks and advertisements are displayed on the screen in a call stand-by time. Ancient proverbs and humor are inserted in the call stand-by time.
Patent KR-20010100676-A (KR)
Inventor: YUM HYEON DEOK
Filed: 2000-05-04
Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야 
     본 발명은 인터넷을 통한 문화상품 거래방법 및 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체에 관한 것임. 
     2. 발명이 해결하려고 하는 기술적 과제 
     본 발명은, 공예품 제조회사와 같은 문화제품 제조회사 및 물류업체와의 온라인 네트워크를 형성하고, 다양한 언어의 사이트를 제공함으로써, 국내외 소비자에게 문화제품을 제공할 수 있는 인터넷을 통한 문화제품 거래방법 및 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체를 제공하고자 함. 
     3. 발명의 해결방법의 요지 
     본 발명은, 전자상거래 웹 서버가 인터넷을 통해 접속한 소비자로부터 사용자 인증정보를 입력받아, 상기 소비자를 인증하는 제 1 단계; 상기 제 1 단계의 인증결과, 회원이면, 상기 전자상거래가 웹 서버가 상기 소비자로부터 상품주문 정보, 배송정보 및 신용카드 정보를 수신하는 제 2 단계; 상기 제 1 단계의 인증결과, 회원이 아니면, 소정의 회원가입 절차를 수행하는 제 3 단계; 상기 전자상거래 웹 서버가 상기 신용카드 정보로부터 사용자 인증을 통한 승인정보 및 결재대금을 지급받는 제 4 단계; 상기 전자상거래 웹 서버가 상기 소비자의 주문정보 및 상품대금을 공예품 제조업체로 전송하면, 상기 공예품 제조업체가 상기 주문된 문화상품을 물류업체로 발송하는 제 5 단계; 및 상기 공예품 제조업체가 상기 문화상품을 상기 소비자에게 배송하는 제 6 단계를 포함함. 
     4. 발명의 중요한 용도. 
     본 발명은 전자상거래 시스템 등에 이용됨.
Patent KR-20010105910-A (KR)
Title: Four step of visit learning method, availing internet
Inventor: KIM GI DAE
Filed: 2000-05-19
Abstract: The invention relates to a steam turbine (1) which has a flow channel (2) with a wall (3). Blades (5) are arranged in the flow channel (2) in blade rings (55). The wall (3) of said flow channel (2) has a grooved structure (6) which specifically influences a cross flow of a working fluid (13) traversing the flow channel (2). In particular, each blade of a blade ring (55) is separated from the next by spacing surface (31) with a grooved structure (6). The invention also relates to a blade for a steam turbine.
Patent KR-20010106965-A (KR)
Inventor: KIM GI CHEOL
IPC: H04W16/16
Filed: 2000-05-24
Abstract: 본 발명은 구내복합통신시스템에 관한것으로, 기존 공중 무선망에 무선교환기를 연결(마치 공중망에서는 기지국으로 인식)하여 구내전화를 사용할때 호 관리부에 등록된 무선단말기는 구내전화처럼 사용할수 있게 하고, 등록되지 않은 무선단말기일 경우는 호 관리부에서 바이패스 시켜서 기지국만 공유하게 된다. 상기 등록된 무선단말이 경우 두 가지로 서비스 받을수 있는데, 구내유선단말과 통화할 경우의 한가지와 구내무선단말과 통화 할 경우의 두 가지로 나눌수 있다. 한편 기존의 유선을 통한 음성 및 데이타 통신을 그대로 서비스 받을수 있으며, 인터넷 망을 통한 데이타를 무선으로 서비스 받을수 있다.
Patent KR-20010108962-A (KR)
Inventor: CHOI YO HAN
IPC: G03F1/74
Filed: 2000-06-01
Abstract: 개구부용 포토마스크에 발생한 불투명 결함의 수리 방법에 관해 개시한다. 본 발명에 따른 포토마스크 결함의 수리 방법은 전-식각 단계에 의해 결함의 두께를 낮춘 후, 광투과부 영역내의 전-식각된 결함이 형성되어 있는 영역을 제외한 영역에만 선택적으로 보정막을 형성한 다음 보정막 및 전-식각된 결함을 동시에 식각하여 불투명 결함을 수리한다. 본 발명의 수리 방법에 따르면, 포토마스크의 불투명 결함을 높은 정확도로 수리할 수 있다.
Patent KR-20010110553-A (KR)
Inventor: LEE SEUNG YEOL
Filed: 2000-06-07
Abstract: 본 발명은 텔레비전의 경사 자동 보정 및 색 오염 자동 제거장치에 관한 것으로, 종래에는 초기 파워 온시에 색 오염(PURITY)이 발생할 경우 사용자로 하여금 디가우싱(Degaussing)이란 메뉴를 이용하여 강제 소거하도록 하는데, 텔레비전이 온(on) 되어 있는 상태에서 방향 전환을 하였을 경우 그 방향 전환에 따른 색 오염이 발생한 상태로 시청하여야 하는 문제점이 있다. 따라서 본 발명은 리모콘에 나침반을 설치하고, 이 설치된 나침반으로부터 방향정보를 입력받으면 그 방향정보에 따라 화면의 경사 및 색 오염 정도를 자동으로 보정해 주도록 함으로써, 최초로 텔레비전을 온한 경우나 텔레비전을 시청하는 도중에 방향을 전환하였을 경우 자동으로 화면의 경사를 보정하고, 자동으로 색 오염을 없애도록 한 효과가 있다.
Patent KR-20010111798-A (KR)
Inventor: JUNG HYEONG GEUN
Filed: 2000-06-13
Abstract: 본 발명은 건조제에 습도지시계가 일체로 구비되도록 함으로써, 제품 포장 작업시 일손이 적게 들도록 하여 포장작업의 효율성을 향상시킬 수 있도록 한 것이다. 
     이를 위해, 본 발명은 포장대(100) 내부에 흡습제가 수용되어 포장꾸러미 내부에 봉입되는 건조제(1)에 있어서; 포장대(100)에 상기 포장꾸러미 내부의 습도를 확인할 수 있도록 하는 습도지시계(2a)가 일체로 구비됨을 특징으로 하는 습도지시계를 구비한 건조제가 제공된다.
Patent KR-20010113296-A (KR)
Inventor: LEE JAE UNG
Filed: 2000-06-19
Abstract: 본원 발명은 B2B(business to business) 시장에서 발생하는 상거래의 지불업무를 해결하는 인터넷 통한 전자이체 시스템에 관한 것으로, 전자 상거래에서 매도인은 매수인과 거래가 결정되는 경우 인터넷을 통한 전자이체 시스템 운영자의 주처리 시스템에 접속하여 매도인 등록을 하고 자신의 고객번호와 정합된 매수인이 사용할 가상계좌번호를 채번하여 매수인에게 통보하고, 매수인은 통보받은 상기 가상계좌번호를 통해 운영자의 주처리 시스템에 접속하고, 접속된 주처리 시스템은 매수인으로부터 전자이체를 통해 대금을 받아  상기 가상계좌번호에 입금하고, 매도인은 인터넷을 통해 상기 가상계좌번호에 매수인에 의해 대금결재용으로 입금된 내역을 보고 물건을 인도하며, 매수인은 매도인으로부터 인도된 물건을 확인하고 인터넷을 통해 아직 매도인에게 상기 가상계좌번호에 입금되어 있는 대금의 대금결재 신호를 보내면 주처리 시스템은 인터넷을 통해 매수인으로부터 대금결재의 신호를 받아 상기 가상계좌번호로부터 매도인의 실질계좌에 입금을 함으로써 B2B 시장에 대한 인터넷을 통한 전자이체를 실현한다.
Patent KR-20010066856-A (KR)
Inventor: OSAKO KENICHI
IPC: A23L7/109
Filed: 2000-06-20
Abstract: PURPOSE: A device and method for boiling noodles are provided to easily boil a plurality of kinds of noodles each having different boiling time. CONSTITUTION: In a noodle boiling device provided with a plurality of boiling buckets(2) storing noodles held on an endless conveyor chain(3) at a prescribed interval so as to boil noodles by transporting the boiling buckets(2) storing noodles by the conveyor chain(3) and passing through a boiling tub, noodle storing points where noodles are stored in the boiling buckets(2) are provided in at least three positions along the direction of transport of the boiling buckets(2) so that boiling time becomes different for each kind of noodle.
Patent KR-20020000973-A (KR)
Inventor: LEE CHEOL GU
IPC: C23C2/06
Filed: 2000-06-23
Abstract: PURPOSE: A noise removing device in zinc pot air knife is provided which reduces noises and restrains generation of over plating by laying blocking rods blocking vortex generated at the surrounding of a zinc pot, thereby restraining the generation of the vortex. CONSTITUTION: The noise removing device in zinc pot air knife comprises a pair of blocking rods(31) which are installed so that they are inserted into air nozzles in a certain length at both sides of an air knife controlling plating thickness of both surfaces of a strip passing through a zinc pot; a cylindrical operating member(29) to which one ends of the blocking rods(31) are fixed; an operating rod(34) which is inserted into the operating member(29) so that it is slid along the length direction; a "T" shaped coupling member fixed to the central part of the operating rod(34); a rod shaped guide(26) which has the same shape as the operating member(29) that is fixed to the end part of the coupling member; a guiding rod(24) into one end of which the rod shaped guide(26) is inserted so that it is ascended or descended, and the other end of which is vertically bended so that it has the same structure as the operating rod(34) that is fixed to a body(18) by a fixed plate(25); sensors(21) which are installed on a support bracket(19) so as to sense edges of a strip, wherein the support bracket(19) is fixed onto one surface of the body(18) so that the support bracket(19) is projected to a direction in which the blocking rods(31) are installed; a connection member(17) fixed onto the one side of the body(18) that is perpendicular to the support bracket(19); and an operating cylinder(15) which is installed so as to move the connection member(17) back and forth.
Patent KR-20020000997-A (KR)
Title: Apparatus for checking pass line roll
Inventor: JUNG JUNG HUN
IPC: B21B38/00
Filed: 2000-06-23
Abstract: PURPOSE: An apparatus for checking pass line rolls is provided which measures distance speeds of each work rolls, progressing speeds of a strip per each sections and distance speeds of each pass line rolls, and then compares the data so as to predict and judge defects of each pass line rolls. CONSTITUTION: The apparatus for checking pass line rolls comprises a rotation transmission shaft(10) which penetrates a sealing cover(16), and which is coupled to the cross section of one side of a pass line roll(7) so that the rotation transmission shaft(10) forms the same axis as the pass line roll(7); an encoder(12) which is fixed to the sealing cover(16) by a fixed base(11), and which is installed so that it measures the number of rotations of the pass line roll(7) through the rotation transmission shaft(10); a protection cover(14) which is fixed to the sealing cover(16) so that the protection cover(14) covers the rotation transmission shaft(10) and the encoder(12); and a desk panel(15) which is installed so that converted distance speeds are compared with distance speeds of work rolls and progressing speeds of a strip per each sections measured at sheet speed meters by converting rotation speeds of the pass line roll(7) measured at the encoder(12) into distance speeds, and on which the results of the comparison are indicated.
Patent KR-20020004150-A (KR)
Title: Broadcast signal reproduction device for audio interference characteristic test
Inventor: YANG SEUNG WAN
IPC: H04N17/00
Filed: 2000-07-03
Abstract: PURPOSE: An apparatus for reproducing a broadcasting signal for testing audio jamming characteristic is provided to reproduce the test broadcasting signal with a specific characteristic all the time without temporal and spatial restriction, and to test the audio jamming through a quantitative and objective method. CONSTITUTION: An apparatus for reproducing a broadcasting signal for testing audio jamming characteristic includes a video signal generator(1) for artificially generating a video signal having the same characteristic as that of a video signal transmitted from a local broadcasting station within a test apparatus under the control of a controller(10), and an audio signal generator(2) for artificially generating an audio signal having the same characteristic as that of a video signal transmitted from the local broadcasting station within the test apparatus under the control of the controller. The apparatus further has an RF modulator(3) for converting the video and audio signals into RF signals and RF-amplifying the signals to send the signals to the air through a transmission antenna(4), an AV system(6) for receiving the signals through a reception antenna set in am automobile(12) and amplifying the signals to a predetermined level, and a V/A analyzer(7) for analyzing the signals output through the AV system. The apparatus also has a vector monitor(8) for displaying the signals output from the AV system in the form of vector, a spectrum analyzer(9) for analyzing the spectrums of the signals, and a printer(11) for selectively printing data.
Patent KR-20000059004-A (KR)
Inventor: BACK SUNG WOOK
IPC: H04W8/24
Filed: 2000-07-08
Abstract: PURPOSE: A system for servicing electronics business cards is provided to transceive and store information between wireless internet terminals such as cellular phones and portable data(PDA) terminals, by converting personal business cards into digital characters. CONSTITUTION: A new subscriber registers on internet contents as a member to receive an identification(ID) and a password in a system for servicing electronic business cards. The member selects a required business card in the contents, and inserts personal information. When the business card is completed, the business card is transmitted to a mobile communication provider through a server of an internet contents provider. The business card is delivered to a wireless internet terminal such as a cellular phone or a portable data(PDA) terminal of the member.
Patent KR-20020005294-A (KR)
Title: Fermentation food packing container
Inventor: LEE SU YEONG
IPC: B65D41/20
Filed: 2000-07-10
Abstract: PURPOSE: A container for packaging fermented food is provided which employs an air permeable film composite ensuring fermentation respiration as a rupture film for sealing an opening of the container, whereby the fermentation of the food after packaged in the container slowly proceeds, the packaging period is elongated, the rupture film is not expanded, and taste and freshness of food is maintained for an elongated time. CONSTITUTION: The packaging container is composed of a container(1) and an air permeable shield film composite(3). The container(1) is obtainable by mixing a polymer having a melting point of less than 300 deg.C and 0.5 to 70 wt% of one or more mineral(s) selected from the group consisting of sericite, antibiotic ceramic, CaCo3, BaSO4, SiO2, and talc, forming the mixture. The air permeable shield film composite(3) is obtainable by forming a compound resin containing inorganic materials into a film, following uniaxial stretching, which is bonded to a sheet of nonwoven fabrics by an adhesive pattern ensuring air permeability. The packaging container(1) further comprises a film protecting cover(7) having vents(6) arranged on the top surface.
Patent KR-20020006142-A (KR)
Title: Method and apparatus for preventing a reverse voltage in a fuel cell
Inventor: YOO HYO YEOL
IPC: H01M8/00
Filed: 2000-07-11
Abstract: PURPOSE: A device for preventing the inverse voltage of a fuel cell and its method are provided, to prevent the damage of fuel cells and to allow the total fuel cell system to operate bypass of diodes by only the rest of fuel cells if some fuel cells cannot generate the driving force. CONSTITUTION: The method comprises the steps of connecting a plurality of fuel cells(30) in serial to generate a high voltage by using the fuel cells; connecting a plurality of diodes(33) to the each fuel cell connected serially, in inverse parallel; determining whether a driving force is generated at a plurality of fuel cells(30); allowing the current to flow through a plurality of fuel cells if it is determined that a normal driving force is generated at a plurality of fuel cells; and allowing the current to flow through the diode corresponding to the fuel cell(A) which doesn't generate a normal driving force if it is determined that at least one among the fuel cells doesn't generate a normal driving force, thereby preventing the inverse voltage from being impressed to the fuel cell.
Patent KR-20020008952-A (KR)
Title: method for manufacturing of semiconductor device
Inventor: LIM MIN GYU
IPC: H01L21/8232
Filed: 2000-07-21
Abstract: PURPOSE: A fabrication method of semiconductor devices is provided to simplify the manufacturing process, to reduce the manufacturing costs and to improve a yield by performing an n-gate doping process during a P-well implantation process. CONSTITUTION: An N-well(33) is formed at a first region of a silicon substrate(31). A gate oxide(34) and an undoped polysilicon layer are sequentially formed on the resultant structure. A P-well(37) is formed at a second region of the silicon substrate(31). A first and a second gate electrodes(35a,35b) are formed by doping n-type impurity ions into the undoped polysilicon layer and selectively removing the polysilicon layer. A first source/drain region(40a) is formed in the P-well(37) by implanting n-type impurity ions using a second photoresist pattern and the first gate electrode(35a) as a mask. A second source/drain region(40b) is formed in the N-well(33) by implanting p-type impurity ions using a third photoresist pattern(41) and the second gate electrode(35b) as a mask.
Patent KR-20020009816-A (KR)
Title: Apparatus and method for data to echo clock tracking
Inventor: KIM YEONG TAE
IPC: H03K17/693
Filed: 2000-07-27
Abstract: PURPOSE: A device and a method for tracking between data and echo clocks are provided to be capable of preventing skew by matching output data and echo clocks even though operating cycles are changed, thereby being used in a rapid synchronizing semiconductor memory device, preventing speed delay and enhancing the stability of overall system. CONSTITUTION: A delay controller(110) delays first and second pulse signals by the delay time of external output data using a control signal. External output echo clocks delayed by the delay time of the external output data by the delay controller(110) of a data output buffer(100) are output toward outside by an output part. In this structure, the latch timing of the external output data is first sensed by a delay control signal generated by mixing the control signal to the first/second pulse signals. Then, the pulse signals are delayed by the delay time of the external output data. Finally, external output echo clocks matched to the output data are generated.
Patent KR-20010049948-A (KR)
Inventor: BERND JUNGHANS
IPC: C07D333/16
Filed: 2000-07-31
Abstract: PURPOSE: Provided is a novel process for manufacturing the hydroxybenzothiophene of formula(1) comprising cyclocarbonylation of a compound of formula(2). The compound of formula(1) is a building block of pharmaceutically active substances, for example, 5-(4-(2-(5-methyl-2-phenyl-4-oxazolyl)ethoxy)-7-benzothiophenylmethyl)-2,4-thiazolidinedione and the corresponding sodium salt which are from agents useful in the treatment of diabetes. CONSTITUTION: A process for the preparation of bicyclic compound of the formula(1) comprising cyclocarbonylating a monocyclic compound of the formula(2), wherein Y is halogen or -OR; and -OR is an aryloxy group or a group of formulae -O-(CO)-R', -O-(CO)-O-R'' or -O-(PO)-(OR'')2, wherein R' is alkyl, perfluoro-C1-20-alkyl, aryl, R'' is alkyl, aryl or benzyl, by reacting, in an organic solvent medium containing a base and a carboxylic acid anhydride, the monocyclic compound with carbon monoxide in the presence of a carbonylation catalyst capable of complexing with carbon monoxide. The cyclocarbonylation reaction is carried out by introducing carbon monoxide gas into the reaction medium to form the carboxylic acid ester of the compound of formula(1) and thereafter saponifying the ester formed by the carbonylation reaction by treating the ester product in the reaction medium with a base at a pH of from 8 to 14 to form the bicyclic compound.
Patent KR-20020012648-A (KR)
Title: Advertising method through web-phone based on internet
Inventor: HONG EUNG PYO
Filed: 2000-08-08
Abstract: PURPOSE: An internet phone advertisement method is provided to perform various types of advertisements on an internet phone, specially to induce a user to correctly input data and send a survey questionnaire or an advertisement based on the input data so that it can maximize an advertisement effect. CONSTITUTION: The method comprises steps of a service operator extracting request elements of an advertiser(200), the service operator searching for members corresponding to the advertiser request(201), the operator sending the advertisement via an e-mail when the member makes an access to the service system(202), the operator determining if the user clicks on and browses the advertisement(203), the operator notifying a main server of the member to click on the advertisement(204), the main server accumulating corresponding cyber money for the member by using a member management database, a lottery management database, an accumulation database, and a push data server(205), and the main server periodically notifying the member of the current state of the accumulated cyber money(206).
Patent KR-20020013221-A (KR)
Title: Image Security System Using A Communication Network
Inventor: SHIN SEUNG JUNG
IPC: H04N7/18
Filed: 2000-08-12
Abstract: PURPOSE: A video security system using a communication network is provided to check the authenticity or deletion of video data stored in a magnetic tape or a digital memory, to inform an invasion to a remote place through communication networks, and to monitor a place at a remote place through the communication networks. CONSTITUTION: A video security system using a communication network comprises a timer(100) removably attached to the front face of a camera(102), a video data storage(104) storing the images picked up by the camera, a video transfer device(106) transferring the video data stored in the video data storage to a video data receiving device(108), and a control device(109). The time indicating unit of the timer marks a specific time point according to the elapse of time. If an exterior visitor is filmed by the camera, the time of visiting is recorded with the image of the visitor. If the visitor fabricates the video data by installing a picture in front of the camera, the focus of the camera is reset automatically. If the video data are deleted, a time gap is marked by the timer. Thus, the data fabrication is discriminated. The video data transfer device is a communication network composed of a cable, a wireless LAN(Local Access Network), a modem, or the internet. The video data receiving device is a computer or a portable terminal. Therefore, video security work is performed even at a remote place.