baber/WOPTO huggingface dataset:
Patent KR-19990088670-A (KR)
Title: 다회로형계측기와그계측에사용하는분할형변류기
IPC: G01R21/00
Filed: 1999-05-28
Abstract: 본 발명의 다(多)회로형계측기는 교류3상전로(電路) 또는 교류단상전로의 1계통이상의 전압계통과, 그들의 전압계통으로부터 분기된 각회로의 전력, 전력량, 역율, 무효전력 및 무효전력량을 측정하는 것이다. 
     본 발명의 다회로형전력계는, 교류3상전로 또는 교류단상전로의 1계통이상의 전압입력수단(100)과, 상기 전압입력수단(100)과 동일수이상의 전류입력수단(200)과, 상기 전류입력수단(200)을 절환하는 입력절환수단과, 상기 전압입력수단(100)의 아날로그출력 및 상기 전류입력수단(200)의 아날로그출력을 디지털신호로 변환하는 A/D변환기(1600)와, 상기 입력절환수단의 절환제어 및 상기 A/D변환기(1600)에 대한 시분할다중샘플링제어를 행하는 CPU(1700)를 구비하고, 상기 CPU(1700)에 의해 행하여지는 시분할다중의 기본이 되는 시분할샘플링에 있어서의 샘플링포인트와 다음의 샘플링포인트간에 있어서, 상기 입력절환수단으로 상기 입력절환수단에 접속하고 있는 상기 전류입력수단(200)을 순차 절환하고, 그 각 절환에 연동해서 상기 기본이 되는 시분할샘플링과 마찬가지로 시분할샘플링을 행하는데 따라서, 다른 회로에 대해서도 순차 시분할샘플링을 행하고, 동시분할샘플링데이터로부터 상기 CPU(1700)에 의해 복수의 전력의 연산을 행하는 것이다. 
     CPU에 의해 상기 전력의 연산에 대신해서, 전력량, 역율, 무효전력 및 무호전력량의 연산을 행함으로써, 본 발명의 다회로형 계측기를 전력량계, 역율계, 무효전력계 및 무효전력량계로 할 수 있다.
Patent KR-20010003165-A (KR)
Inventor: LEE JANG HO
IPC: H04B7/005
Filed: 1999-06-21
Abstract: PURPOSE: A method for controlling forward power ratios of a wireless local loop(WLL) system is provided to regularly maintain power ratios according to channel elements of forward signals regardless of the number of subscriber terminals serviced in a wireless base station, so as to maximize the number of subscriber wireless interface units capable of being received in the wireless base station. CONSTITUTION: A controller of a wireless base station configures forward power, a synchronous channel, and a paging channel, with only a pilot channel, in an initial operation(S10). If a speech channel is generated with a subscriber wireless interface unit(S20), the controller reads the number of speech channels operated from a channel board(S30). The controller calculates forward power ratios in accordance with the number of the read speech channels(S40). The controller decides whether the calculated present forward power ratios are equal to a preset reference power ratio(S50). If not, the controller generates a control signal to adjust power of the speech channels, to make the forward power ratios equal to the reference power ratio, and outputs the control signal to the channel board(S60). The channel board operates according to the outputted control signal to adjust power of a traffic channel and a signal channel, to make power ratios of entire channels equal to the reference power ratio.
Patent KR-20010003183-A (KR)
Inventor: HA SEOK CHEON
IPC: H01J11/36
Filed: 1999-06-22
Abstract: PURPOSE: A barrier rib structure of a plasma display panel is provided to improve the intensity against an external pressure or impact by dispersing the impact through a wave pattern of the barrier rib. CONSTITUTION: A barrier rib(3') of a plasma display panel assumes the shape of a wave pattern. The wave pattern of the barrier rib(3') is formed symmetrically so as to maximumly disperse an external pressure or impact. A unit volume of the barrier rib(3') increases and decreases repeatedly. The vertical external pressure or impact is easily dispersed because a corresponding area is large. The horizontal external pressure or impact is not deeply delivered inside the barrier rib(3') because a ravine and ridge of the wave pattern absorbs an impact fairly. Therefore, the wave pattern of the barrier rib(3') disperses the external pressure or impact regardless of a direction of the impact so that an intensity of the barrier rib(3') can be improved.
Patent KR-20010003468-A (KR)
Inventor: KWON WON TAEK
IPC: H01L21/027
Filed: 1999-06-23
Abstract: PURPOSE: A method for forming an overlay measuring pattern of a semiconductor device is provided to improve the reliability and yield rate of the semiconductor device by precisely measuring the overlay pattern. CONSTITUTION: A semiconductor substrate(30) is formed with a scribe line for dividing between dies. The first film is formed on a surface of the semiconductor substrate(30). A photoresist pattern is formed for masking the first film. Then, the first film of the die is etched. An outer box is formed by removing the photoresist pattern in such a manner that the first film on the scribe line is exposed. Then, the second film is formed on the surface of the semiconductor substrate(30). An inner box consisting of the photoresist pattern is formed in the outer box.
Patent KR-20010010828-A (KR)
Inventor: PARK SU AN
IPC: A42B3/30
Filed: 1999-07-23
Abstract: PURPOSE: A communications system between two riders wearing helmets for a motor cycle is provided to converse between the two riders wearing the helmets, and to perform a telephone conversation between the two riders by a hands free. CONSTITUTION: Jacks(8) for a conversation of each rider are formed to two helmets which each rider wears. A code(9) for a conversation of each rider transceiving a communication signal is connected between the jacks(8). An intercommunication switch(10) turns on/off the communication signal between the two helmets on the code(9).
Patent KR-20010010997-A (KR)
Inventor: KIM DONG HO
IPC: E04G23/02
Filed: 1999-07-24
Abstract: PURPOSE: A crack-repairing-liquid injector for a concrete structure is provided to improve productivity and workability, and to be easily produced while a pressurizing projection is united with a deformation plate. CONSTITUTION: A crack-repairing-liquid injector comprises a supporting plate(32), a deformation plate(42), a nozzle(52) and a cover(60). In the supporting plate, a wing frame(30) fit to a concrete structure is prolonged out. A store part(34) is projected out, and a bind hole is formed in the upper end of the store part. An air passage(38) is formed in the lower end of the store part. In the deformation plate, one side of the plate is fixed in the store part, and a bind groove is formed. A pressurizing projection(46) is projected from the bind groove, and a guide hole(48) is formed in the lower end of the bind groove. In the nozzle, the upper end is projected out through the bind hole of the store part, and a lower end is fixed in the bind groove of the deformation plate. A hole(50) for inflow of crack-repairing liquid is formed. In the cover, one side of the cover is fixed in the store part, and a receiving groove(62) is formed. A discharging hole(64) is formed in the receiving groove, and a vertical guide groove(66) is formed between the receiving groove and the discharging hole.
Patent KR-19990073573-A (KR)
Title: 동일ｆａ를이용한ｃｄｍａ용광대역중계장치및방법
IPC: H04B7/14
Filed: 1999-07-26
Abstract: 본 발명은 CDMA용 중계 장치 및 방법에 관한 것으로, 특히 기지국에서 사용하는 송수신 주파수와 동일한 주파수를 이용하되 서로 다른 확산코드를 갖는 신호로 변환하여 신호를 중계함으로써 동일 송수신 주파수에 의한 순궤환 발진을 해결함과 동시에, FA의 사용 효율 및 증설 용이성을 확보할 수 있도록 된 동일 FA를 이용한 CDMA용 광대역 중계 장치 및 방법에 관한 것이다. 
     본 발명에 따른 동일 FA를 이용한 중계 장치는 기지국은 송신신호를 제1 확산코드로 대역확산하여 가입자에게 송신하고, 가입자는 송신신호를 제2 확산코드로 대역확산하여 기지국으로 송출하도록 된 CDMA 통신 방식에 있어서; 상기 제1 확산코드로 대역확산된 임의의 기지국 송신주파수 대역의 신호를 수신하면 대응되는 기지국 수신주파수 대역의 신호로 변환하여 송신하고, 상기 제2 확산코드로 대역확산된 임의의 기지국 송신주파수 대역의 신호를 수신하면 대응되는 기지국 수신주파수 대역의 신호로 변환하여 기지국으로 송신하는 기지국 접속수단과; 상기 제2 확산코드로 대역확산된 임의의 기지국 수신주파수 대역의 신호를 수신하면 대응되는 기지국 송신주파수 대역의 신호로 변환하여 상기 기지국 접속 수단으로 송신하고, 상기 기지국 접속 수단으로부터 제1 확산코드로 대역확산된 임의의 기지국 수신주파수 대역의 신호를 수신하면 대응되는 기지국 송신주파수 대역의 신호로 변환하여 가입자에게 송신하는 가입자 접속 수단을 포함하여 구성된 것을 특징으로 한다. 
     또한, 본 발명에 따른 동일 FA를 이용한 중계 방법은 기지국과 신호 송수신을 하는 기지국 접속 수단과, 가입자와 신호 송수신을 하는 가입자 접속 수단을 구비하여 기지국 및 가입자 간의 신호 중계를 하도록 된 CDMA용 중계 방법에 있어서; 상기 기지국 접속 수단은 기지국으로부터의 임의의 송신주파수 대역의 신호를 수신하면 대응되는 수신주파수 대역의 신호로 변환하여 상기 가입자 접속 수단으로 송신하고, 상기 가입자 접속 수단으로부터 임의의 기지국 송신주파수 대역의 신호를 수신하면 대응되는 기지국 수신주파수 대역의 신호로 변환하여 상기 기지국으로 송신하고; 상기 가입자 접속 수단은 가입자로부터의 임의의 기지국 수신주파수 대역의 신호를 수신하면 대응되는 기지국 송신주파수 대역의 신호로 변환하여 상기 기지국 접속 수단으로 송신하고, 상기 기지국 접속 수단으로부터 임의의 기지국 수신주파수 대역의 신호를 수신하면 대응되는 기지국 송신주파수 대역의 신호로 변환하여 상기 가입자측으로 송신하는 것을 특징으로 한다.
Patent KR-19990078945-A (KR)
Title: 폐타이어 재생장치
Filed: 1999-08-23
Abstract: 본 발명은 폐타이어 재생장치에 관한 것이다. 
     본 발명은 상부홉퍼(12)의 저부 파쇄부(11) 내측에 파쇄날(15)이 구성되며 폐타이어를 작은크기로 파쇠시키는 1차파쇄기(10)와, 상부홉퍼(22)의 저부 파쇄부 (11)내측에 파쇄날(25)이 구성되며 상기 파쇄된 폐타이어를 더욱잘게 파쇄시키는 2차파쇄기(20), 그리고 상기 2차파쇄기(20)를 통해 분쇄된 폐타이어 입자를 미세한 크기로 파쇄시켜주기 위한 3차파쇄기(30)와, 상부 블로어(200)를 통해 저부 금속분리부(44)를 통과하면서 폐타이어의 금속성분을 분리, 배출되도록 한 금속분리기 (40)와, 상부 일측에 분쇄부(55)가 구성되며 파쇄된 폐타이어를 미세한 분말형태로 분쇄시켜주기 위한 미분쇄기(50)와, 상부에 일단이 삽입, 설치되고 일측이 개방된 드럼(61)의 중앙에 교반익(63)이 형성된 지지축(63)의 일단을 하방 모터(M5)와 연동, 결합하여 폐타이어 입자에 섞인 직물을 분리하는 직물분리기(60)와, 상부에 진동부(71)이 경사지게 구성되며 고무입자를 크기별로 걸러내기 위한 바이브레이터 (70)와, 상기 바이브레이터(70)에서 분리된 고무입자를 내부 교반익(81)에 의해 오일과 함께 투입된 고무입자를 혼합하는 혼합조(80)와, 상기 오일이 혼합된 폐타이어 고무입자를 탈황기(90)의 탈황부(91)로 압송, 공급하여 폐타이어의 고무입자를 탈황하는 일련의 관련구성을 제공한다. 
     본 발명은 폐타이어의 재생을 위한 파쇄구조 및 금속과 직물 등의 분리를 위한 분리구조 그리고 특히, 고무입자의 재성형을 위한 탈황구조 등 일련의 재생장치 및 방법을 제공함으로써 폐타이어의 재활용을 극히 용이하게 하고 특히, 고무의 고형화를 위해 필수적으로 첨가하는 황의 효과적인 제거수단을 통하여 전량이 폐기처분되고 있는 폐타이어를 타이어의 원료로 극히 유용하게 재활용할 수 있다
Patent KR-20010018832-A (KR)
Inventor: CHOI BYEONG GUK
IPC: H04M3/22
Filed: 1999-08-23
Abstract: PURPOSE: The method for controlling the state of a multi-type switching system using meta modeling is provided to offer an integrated state controlling method in a multi-type switching system. CONSTITUTION: In case that a state modification message is transmitted from an arbitrary TP(Transport Platform) among different kinds of TPs, a state control software block in charge of the integrated state control of a multi-type switching system receives the message from the TP(200) and checks whether meta information to modify the resource state of the TP is necessary, according to the received state modification message(202). If meta information is necessary, the state control software block reads meta information from a meta information storage part(204). Then, the state control software block executes state transition using meta information for the TP(206) and checks whether state transition information for the TP is necessary for a user(208). If it is necessary for the user, the state control software block informs him of the state modification information of the state-transit TP through a GUI(Graphic User Interface)(210). The state control software block stores the state modification information of the state-transit TP in an object database(212).
Patent KR-20010019295-A (KR)
Inventor: CHOI SEUNG PIL
IPC: H04W24/04
Filed: 1999-08-26
Abstract: PURPOSE: A method for automatically upgrading a program of a base station management system is provided to generate new PLD(Processor Load Data), and to successively perform an automatic upgrading, so as to simplify an upgrade operation of an operator, and to reduce a service interception time to supply an improved service. CONSTITUTION: If an upgrade command is inputted from an operator, a BSM(Base Station Manager) checks a file for being upgraded. After checking the file, if a new PLD(Processor Load Data) generation is needed, the BSM copies current PLD. The BSM generates the copied PLD to the new PLD according to the upgraded file. The BSM downloads the new PLD to a lower processor. The BSM reperforms a system to the new PLD. The BSM commands a reperformance of the new PLD to the lower processor.
Patent KR-20010019842-A (KR)
Inventor: CHOI SEOK WON
IPC: H01L31/0216
Filed: 1999-08-31
Abstract: PURPOSE: A method for manufacturing an anti-reflecting layer of a solar cell is provided to effectively reduce a surface reflection rate of a silicon solar cell and to obtain a surface passivation effect, by forming the anti-reflecting layer having a dual structure composed of CeO2 and MgF2. CONSTITUTION: CeO2 having a lattice constant similar to that of silicon is deposited on a solar cell to form a CeO2 layer by using a sputtering method, evaporation method or chemical vapor deposition(CVD) method. MgF2 is deposited on the CeO2 layer by using an evaporation method, spray method or CVD method. The CeO2 layer is deposited on the CeO2 layer by a predetermined thickness by performing a sputtering method in an Ar/O2 atmosphere within a temperature scope from a room temperature to 400 deg.C. while using a Ce metal target.
Patent KR-20010020047-A (KR)
Inventor: MUN SEONG HAK
IPC: G09G3/292
Filed: 1999-08-31
Abstract: PURPOSE: A method for driving a plasma display panel is provided to reduce the quantity of radiation during the reset period and to make the address driving voltage low. CONSTITUTION: The priming discharge is generated by the address electrode(X) and the scanning/sustaining electrode(Y) during the reset period for initializing all the cells. After priming discharge during the reset period the opposite discharge is generated, which makes the charge, the polarity of which is the same as the address driving voltage to be supplied to the address electrode(X) and the scanning/sustaining electrode(Y) during the address period, be formed on the address electrode(X) and the scanning/sustaining electrode(Y). And the opposite discharge is generated by permitting the voltage pulse with the same polarity to the scanning/sustaining electrode(Y) and the sustaining electrode(Z).
Patent KR-20010026636-A (KR)
Inventor: KIM SUNG HUN
IPC: H04N5/32
Filed: 1999-09-08
Abstract: PURPOSE: A method for increasing a resolution of an X-ray perspective image is provided to enhance a resolution of an X-ray image, by processing an image signal in an X-ray perspective device having a video camera. CONSTITUTION: The X-ray perspective image is converted into a video signal. Predetermined video signal frames are selected. The selection for the predetermined video signal frames selects three through fifteen frames and turns off an X-ray generator after an operating switch is turned off. The selection for the predetermined video signal frames selects three through fifteen frames when an integrator switch is turned on. Pixels of a video signal corresponding to a location of the X-ray perspective image are accumulated and averaged to obtain an image signal having a good resolution.
Patent KR-20010029155-A (KR)
Inventor: LEE GWANG WON
IPC: H01H73/04
Filed: 1999-09-29
Abstract: PURPOSE: A current limiting apparatus for circuit breaker is provided to improve contact parting time of a moving contact and ensure sufficient opening space by opening the moving contact through the loading to a spring. CONSTITUTION: A current limiting apparatus comprises a fixed contact(1) for receiving power from a converter and transmitting the received power to a load side; a moving contact(2) disposed to be parallel to the fixed contact and which rotates by a link device so as to contact or separate from the fixed contact; a support plate(11) coupled to the moving contact through a hinge axis(12); a link(14) coupled to be rotatable to the support plate; and a spring(17) coupled between the link and the moving contact so as to apply a contact pressure to the moving contact during electrification mode and apply load to the moving contact in opening direction upon occurrence of electronic repulsive force.
Patent KR-20010037538-A (KR)
Inventor: KIM HONG MAN
IPC: B43K29/10
Filed: 1999-10-18
Abstract: PURPOSE: A pen is provided which uses the conductivity of the human body to display indication level differently as resistance values caused from users or interaction with others so that it keeps users to pay attention to the pen continuously. CONSTITUTION: In the pen which includes a casing(3), the pen comprises the parts of: a pair of conduction parts which are separated each other and exposed to the outer surface of the casing; a power supply part; and a display part(25) which shows resistance values as resistance connected to the conduction parts. Light emitting diode(26,27,28) and an acoustic generation part are desirably contained in the display part. And a pair of contact conductors(15,16) are contained in one conduction part and a switch(19) is placed between contact conductors to select one conductor.
Patent KR-20010037600-A (KR)
Inventor: KOO JONG BEOM
IPC: H02K5/04
Filed: 1999-10-19
Abstract: PURPOSE: A housing structure of a motor is provided to simplify the housing structure of the motor by engaging a base plate with one side of the housing by using an engaging boss, a bolt, or a screw. CONSTITUTION: A base plate(50) is constituted such that one end of a rotary shaft of a rotor assembly(54) is supported by a bearing(56). A housing(2) is fixed to the base plate(50) by a flange and a bolt. The other end of the housing(2) is integrally formed with a bearing receiving section(1) which supports the rotary shaft of the rotor assembly(54). An engaging section(2') is formed at the base plate(50) and the lower end portion of the housing(2). The base plate(50) is engaged with the engaging section(2') by a fixing member which is penetrated through a fixing hole(3) formed in the engaging section(2').
Patent KR-20010045322-A (KR)
Inventor: BAEK YEONG JONG
IPC: F16C11/06
Filed: 1999-11-04
Abstract: PURPOSE: A ball joint structure of a six axes finishing machine is provided to perform rotation and transfer of cutting and polishing tools smoothly, to improve productivity by reducing the number of manufacturing process, and to rapidly wash residual fragments of processed material. CONSTITUTION: A ball joint structure of a six axes finishing machine includes right and left hemispherical bodies(10,20), first and second socket parts(30,40) and upper and lower scrapers(50). The right and left hemispherical bodies respectively has a plurality of coupling holes and a coupling part penetrated in the center. The socket parts are vertically cut, have a plurality of coupling holes(31) at both cut surfaces, a central part having stepped jaws and a ball insertion part. The scrapers are seated in the stepped jaws formed upper and lower ends of the ball insertion part and have a plurality of coupling holes.
Patent KR-20010045809-A (KR)
Inventor: GU YUN HOI
IPC: C02F1/78
Filed: 1999-11-08
Abstract: PURPOSE: Disclosed is a domestic reservoir with ozone generator for providing clean water where disinfected water by ozone gas is intermittently treated with ozone again for restraining recontamination. CONSTITUTION: By an air pump, air travels through an air dryer (1) into an ozone generator (4) of an ozone generating device (5). Generated ozone gas is diffused in an auxiliary reservoir tank (7) passing through a diffuser installed at the bottom part of the auxiliary reservoir tank. And then, disinfected water is transferred into an ozone eliminator (13) packed with activated carbon and then minerals are added to the water. Also, ozone gas is intermittently injected into the auxiliary tank for restraining recontamination arising from long storage of purified water. To accomplish this intermittent injection, a control box (14) for automatically controlling the operations of a pump (2), an ozone generator (4), and blower (17) for cooling is equipped.
Patent KR-20010047724-A (KR)
Inventor: CHOI SEONG BAE
IPC: F02B67/06
Filed: 1999-11-23
Abstract: PURPOSE: A dual pulley device for engine noise reduction is provided to transmit the rotation force in association with or independent from the rotation of a crank shaft pulley for preventing the load of various element parts from being applied to the engine even though reduction is made after acceleration in a low-idle condition of the engine, thereby preventing the noise generated from the engine. CONSTITUTION: A dual pulley device for engine noise reduction includes an outer pulley(14) connected to a crank shaft pulley of an engine via an electric motor element, an inner pulley(16) mounted inside the outer pulley and connected to various element parts which operates by the driving force of the engine, and a unidirectional operation element for transmitting the rotation force of the outer pulley to the inner pulley but not transmitting the rotation force of the inner pulley to the outer pulley, and having a plurality of protrusions(22) formed on an inner periphery of the outer pulley, one or more triangular plates(24) formed on an outer periphery of the inner pulley to be interposed between the protrusions, and one or more springs(28) mounted on an inner surface of the inner pulley for elastically supporting the triangular plate.
Patent KR-20010005472-A (KR)
Inventor: SON AI KIMU
IPC: C23C16/503
Filed: 1999-11-25
Abstract: PURPOSE: A plasma treating device is provided to enable the efficient execution of work, such as sterilizing, washing, etching and vapor deposition of thin films by providing the above device with a metal electrode and capillary dielectric electrodes having first and second surfaces and a shielding body so as to enclose the first surfaces and the metal electrode connected to these surfaces and supplying gas therein. CONSTITUTION: This device is provided with the metal electrode (11) to which DC or high-frequency potential is supplied from an electric power supply section (15) and the capillary dielectric electrodes (12) which have the first and second surfaces and are connected to the metal electrode (11) via the first surfaces. The metal electrode (11) is formed as a cylinder provided with holes at its base surface and these holes are aligned to the capillaries in the dielectric electrodes (12). The device is provided with the shielding body (13) so as to enclose the first surfaces of the dielectric electrodes (12) and the metal electrode (11) and gas is supplied to the metal electrode (11) while a high electric field is maintained over dielectric electrodes (12), by which high-density plasma discharge beams are generated from the inside of the capillaries and the plasma discharge is effected toward a workpiece (17). The sterilizing, etching, vapor deposition of the thin films, etc., are thus effected.
Patent KR-20010053720-A (KR)
Inventor: KIM SU HEON
IPC: F24F1/06
Filed: 1999-12-01
Abstract: PURPOSE: A brace coupling structure for integrated air conditioner is provided to achieve an improved assembly strength without adding components, while preventing the screw thread formed at the shroud from wearing. CONSTITUTION: A brace coupling structure for maintaining distance between the scroll and the shroud and reinforcing assembled state, comprises a bent portion(51) formed at an end of a brace(50), and which is fit to a stepped portion(61) of a shroud(60) so as to maintain a correct distance between the scroll and the shroud; and an insertion portion(52) formed between bent portions of the brace, and which has a coupling hole(52a) formed at the center of the insertion portion. The brace is coupled to the shroud in such a manner that the bent portion is fit to the stepped portion of the shroud, the insertion portion is inserted into an insertion hole(62) formed at the shroud, and a screw(63) is inserted into the coupling hole formed at the insertion portion and the insertion hole of the shroud.
Patent KR-20010053950-A (KR)
Inventor: CHOI YEONG BOK
IPC: H01L31/0232
Filed: 1999-12-02
Abstract: PURPOSE: A rail type hybrid photoelectric conversion apparatus is provided, which can fix an optical device at a required position on a substrate accurately without using an expensive alignment apparatus. CONSTITUTION: A top clad layer(1) embedded with a core(2) is formed on a silicon substrate(4), and a fixing groove(6) is formed on one end(a) of the top clad layer to fix an optical fiber(2). A V-shaped rail groove(11) is formed on the silicon substrate on the same axis as another end(b) of the core, and an optical device(3) has a V-shaped projected part(3-1) on its bottom part. Therefore, in case of locating the optical device on the silicon substrate, the optical device is pushed into the rail groove of the silicon substrate and then the projected part of the optical device is inserted into the rail groove of the silicon substrate. The optical device has to be bonded with another end of the core by pushing the optical device into the core side. Therefore, the optical device can be contacted mutually with the one end of the core in the top clad layer on the same axis as the core without using an additional apparatus.