baber/WOPTO huggingface dataset:
Patent KR-20000034484-A (KR)
Title: Method for synchronizing in network of cable modem
Inventor: KIM DEOK NYEON
IPC: H04L7/00
Filed: 1998-11-30
Abstract: PURPOSE: A method for synchronizing in a network of a cable modem is provided to reduce a size of an SYNC message transmitted and received for fitting synchronization with a cable modem termination system and the cable modem. CONSTITUTION: A cable modem termination system(30) and cable modems(11-14) establishes an average value with a system parameter. The cable modem termination system(30) transmits a time information changed from the average value to the cable modems(11-14) by loading in a time stamp information of the SYNC message. The cable modems fit synchronization with the cable modem termination system(30) by using the transmitted time stamp information of the SYNC message and the previously established average value. Thereby because the cable modem terminal system reduces the size of the SYNC message by loading only the value changed from the average value promised with the cable modem in the SYNC message instead by loading a large value obtained with periodically sampling a basic timer in the SYNC message, a downstream channel is effectively used by saving a band of the downstream channel.
Patent KR-20000041237-A (KR)
Title: Device for measuring slope angle and shift length of robot blade
Inventor: CHO HYEON SANG
IPC: G01B11/26
Filed: 1998-12-22
Abstract: PURPOSE: A device for measuring slope angle and shift length of a robot blade is provided to prevent a wafer from scratch or breakage by compensating measured slope angle and length by making a blade measure slope angle and length accurately. CONSTITUTION: A pair of light emitting parts(1) is horizontally placed on the upper and the lower of a robot blade(B) carrying wafers. An optical sensor(2) is placed on a certain wall(W) placed in the direction of which the robot blade moves forward to sense the light emitted from the light emitting parts. An operation part(3) is prepared to output slope angle and length of the blade according to the data sensed in the optical sensor. The operation part outputs slope angle, theta and shift length, delta y of the blade by applying the variables, delta which is the distance of a pair of lights projected to the wall after being emitted from the light emitting part while the blade is shifted delta y upward or downward while being inclined angular degrees theta, y which is perpendicular length between the protected positions by the condition and a normal condition, b which is the thickness of the blade, and x which is horizontal length between the blade and the wall to formulas theta is cos-1(delta/b) and delta y is y-xtan(theta).
Patent KR-20000041473-A (KR)
Title: Method for repeatedly reproducing optical disk system
Inventor: KIM BEOM YIN
IPC: G11B19/02
Filed: 1998-12-22
Abstract: PURPOSE: A method for repeatedly reproducing an optical disk system is provided to simplify the procedure for repeatedly reproducing a specific section. CONSTITUTION: A method for repeatedly reproducing an optical disk system includes five steps. A first step is to judge whether a signal for a replay and repetition starting key is inputted or not, when a disk(100) is reproduced. A second step is to reproduce continuously after storing a position information of a program reproducing now when the signal is inputted. A third step is to judge whether the signal is re-inputted or not during revival. A fourth step is to jump a track to the position stored in the second step and to reproduce when the signal is re-inputted. The fifth step is to repeat the above steps until a signal for a revival and repetition dissolving key is inputted.
Patent KR-20000041811-A (KR)
Title: Semiconductor memory
Inventor: LEE YONG GU
IPC: G11C29/00
Filed: 1998-12-23
Abstract: PURPOSE: A semiconductor memory is provided to operate different function tests for each bank in a memory cell array composed of plural banks. CONSTITUTION: Multiplexers(210) receive normal addresses from an address controller(204) and addresses from a test mode address controller(206). The multiplexers are controlled by test mode control signals from a bank test mode controller(208). The multiplexers output the normal addresses in a normal operation mode and outputs test addresses in a test mode. The addresses from the multiplexers are transferred to each bank(218). Multiplexer/demultiplexers(216) are connected to each bank while being controlled by read/write control signals from a read/write controller(202) and test mode control signals from the bank test mode controller. Thus, normal/test data are transferred between a data input/output controller(214) and each bank. Therefore, different function tests are operated for each bank.
Patent KR-20000043320-A (KR)
Title: Optical pickup actuator using piezoelectric device
Inventor: CHAE CHAN YEONG
IPC: G11B7/09
Filed: 1998-12-28
Abstract: PURPOSE: An optical pickup actuator is provided to reduce a number of components and an assembling process by driving a lens holder with a simple structure and to improve a playing sensitivity of a disc by increasing a damping force of a tracking direction at the same time. CONSTITUTION: An optical pickup actuator contains a focusing coil(118) and a hanging piece(114) in a lens holder(110), a fixing piece(136) in a yoke(130), a magnet(138) fixed in the fixing piece(136), a pole(140) having a guide(144), and a piezoelectric element(142) stuck in the pole(140) from a tracking direction. According to an extension of the piezoelectric element(142), the guide(144) delivers the hanging piece(114) toward the tracking direction by inclining the pole(140) toward the tracking direction. Thereby, the lens holder(110) is driven toward the tracking direction.
Patent KR-20000043777-A (KR)
Title: Mid-carbon steel excellent in quench and fine blanking workability and method of manufacturing the same
Inventor: RYU JAE HWA
IPC: C22C38/18
Filed: 1998-12-29
Abstract: PURPOSE: A method of manufacturing medium-carbon steel is provided to have fine blanking characteristic of low-carbon steel and to obtain quenching of high-carbon steel at the same time. CONSTITUTION: Steel consists of, by weight %: 0.15-0.35% of C, 0.1-0.5% of Si, 0.5-1.5% of Mn, 0.1-1.0% of Cr, not more than 0.005% of S, not more than 0.02% of P, 0.0005-0.005% of B, 2-7% of Ti/N, Fe and incidental impurities. The steel is hot-rolled at a temperature of 1240°C for 250 minutes or shorter and coiled at a temperature of 550-630°C to manufacture a hot-rolled steel plate. Finally, the manufactured steel plate is annealed.
Patent KR-20000044369-A (KR)
Title: Method for displaying schedule using set-top-box
Inventor: JEONG HAE WON
IPC: H04N5/445
Filed: 1998-12-30
Abstract: PURPOSE: A method for displaying a schedule using a set-top-box is provided to utilize widely a set-top-box by displaying a user's inputting specific time and contents corresponding to the time on a television screen. CONSTITUTION: A method for displaying a schedule using a set-top-box comprises the steps of: determining whether a schedule management registration menu is selected, or not; receiving and storing specific time and contents according to the schedule if the schedule management registration menu is selected; determining whether a current time is the specific time, or not; and displaying the specific time and contents on a television screen if the current time is the specific time.
Patent KR-20000045460-A (KR)
Title: Semiconductor device for electrostatic discharge protection
Inventor: KIM GEUN GUK
IPC: H01L27/04
Filed: 1998-12-30
Abstract: PURPOSE: A semiconductor device for electrostatic discharge protection is provided to form a N-well electrically and physically connected to a N-well pickup of bottom of a transistor which drain is connected to an input terminal when Vcc is applied to the N-well, thereby protecting the transistor from an electrostatic phenomenon. CONSTITUTION: A semiconductor device for electrostatic discharge protection comprises a diffusion barrier layer(21), and a Vcc signal input terminal connected to the diffusion barrier layer. The diffusion barrier layer prevents the diffusion of holes(19) toward the bottom of a transistor when the impurity junction area of a data output buffer transistor of triple-well structure is connected to an input terminal.
Patent KR-20000045729-A (KR)
Title: Interlock lever of interlock device for automatic transmission
Inventor: LEE SEOK HWAN
IPC: F16H63/36
Filed: 1998-12-30
Abstract: PURPOSE: An interlock lever of interlock device for an automatic transmission is provided to reduce a noise and to simplify an assembly process, by using the interlock to be molded as the plastic material. CONSTITUTION: An interlock lever of interlock device for an automatic transmission comprises: a body (110) to prevent a shifting when an engine is off; a stop part (120) to be connected with the upper face of the body by a connecting part (130) and to be protruded, and to prevent a shift lever (3) from moving from a park position (P) to other position; an interlock lever (100) to be made of plastic material, and to form an inserting hole (140); a protrusion of a rotation shaft (150) to be protruded in both sides of a body (110) of the interlock lever as one body ; a supporting plate (160) to be protruded on a base (A), which has a groove (130) to rotate the protrusion of a rotation shaft.
Patent KR-20000045946-A (KR)
Title: System for opening and closing back door of box type vehicle
Inventor: CHOI JONG IL
IPC: E05B83/18
Filed: 1998-12-30
Abstract: PURPOSE: A system for opening and closing a back door of a box type vehicle is provided to conveniently load and unload small volumed objects in a rear part of the vehicle by opening a window of the back door instead of opening the back door, thereby utilizing a working space efficiently. CONSTITUTION: A system for opening and closing a back door of a box type vehicle includes a door lock(11) mounted at one side of a rear part of the vehicle for opening and closing the back door(10), a hinge mounted at the other side of the rear part for rotating the back door, a glass(20) mounted at an opening part of an upper part of the back door for a driver to check rear side vehicles, a glass hinge(21) coupled to an upper part of the glass for rotating the glass upward, a glass lock element(40) mounted at a lower part of the glass for opening and closing the glass by being driven by an actuator(30), and a striker(22) detachably mounted in the glass lock element, wherein the glass lock element is mounted with a safety cable(50) and a key rod(60) for releasing the door lock only when the glass is opened.
Patent KR-20000045994-A (KR)
Title: Pantograph control circuit by earth switch
Inventor: KIM JIN UNG
IPC: B60L5/24
Filed: 1998-12-31
Abstract: PURPOSE: A pantograph control circuit is provided for an operator safely to work upon maintenance or examination of a high voltage device, such as a traction inverter or an auxiliary power supply, by preventing a pantograph-up. CONSTITUTION: When an operator puts an earth switch (IES or SIES) in an earth position to maintain a high voltage device such as a traction inverter or an auxiliary power supply provided in a motive power unit of an electric motor car, a contact of the earth switch is closed and an electric power urged toward a trailing car through a pantograph-up circuit breaker (PANUN) and a contact of a trailing car control relay (TCR) excites a coil of an inverter earth switching relay (IESR) via the closed earth switch contact. A contact of the excited inverter earth switching relay excites a pantograph trip coil through a pantograph-down circuit breaker (PANDN) and a closed contact of a pantograph relay (PANR). The IESR contact shuts off the electrical power urged toward a coil of a pantograph electronic valve (PANV) and thus a pantograph-down circuit is established. Therefore, so as long as the operator does not put the earth switch into a normal position, the pantograph-up can be prevented.
Patent KR-20000046041-A (KR)
Title: Apparatus and method for managing battery of communication terminal
Inventor: KIM SEUNG YUN
IPC: H04B1/38
Filed: 1998-12-31
Abstract: PURPOSE: An apparatus and a method for managing the battery of a communication terminal is provided to use various kinds of battery compatibly and to achieve optimum charging by transferring battery information to a battery charger. CONSTITUTION: If a battery is mounted(511), a first control unit discriminates the kind of the battery(513). The first control unit judges whether the memory has the characteristic information of the battery(515). After discriminating the kind of the battery, the first control unit checks the quantity of the battery(517). The first control unit stores the characteristic information of the battery in the buffer(519) and detects the voltage of the battery(521). The first control unit compares the detected voltage with a minimum allowable voltage(523). In case that the detected voltage is smaller than the minimum allowable voltage, the first control unit generates an alarm sound(535) and interrupts the battery voltage to prevent the over discharge(527). In case that the detected voltage is larger than the minimum allowable voltage, the first control unit calculates the remainder of the battery(539) and displays the numerical value of the remainder on the display unit(541).
Patent KR-19990044025-A (KR)
Title: 커넥터
IPC: G02B6/38
Filed: 1996-08-21
Abstract: 광학 구성소자에 광섬유의 한 단을 연결하는 커넥터는 광섬유의 상기 단에 근접한 섬유 부분을 위한 유지 슬리브(62)와, 광학 구성소자에 관해 고정될 수 있도록 고안되어 유지 슬리브를 수용하는 구조체(64)를 포함한다. 스프링(66)은 광학 구성소자에 대한 연결에서 유지 슬리브의 길이 방향에서의 공차를 보상하기 위해 수용 구조체(64)와 유지 슬리브(62) 사이에서 작용한다. 스프링(66)과 수용 구조체(64)는 공동으로 형성되어 수용 구조체(64)로 스프링이 도입되기 전에 섬유를 가진 유지 슬리브의 도입을 허용하고 그 후 스프링을 받아들인다.
Patent KR-19990044543-A (KR)
Title: 신규 5-ｏ-데소사미닐 6-ｏ-메틸 에리트로놀리드 ａ 유도체, 그의 제조 방법 및 생물학적 활성 물질의 제조를 위한 그의 용도
IPC: C07H17/08
Filed: 1996-09-10
Abstract: 본 발명의 대상은 화학식 I의 화합물이다: 
     <화학식 I> 
     
       
     
     상기 식에서, OR 1 , OR 2 및 OR 3 은 용이하게 분리될 수 있는 라디칼 형태로 차단된 히드록실 라디칼이다. 
     화학식 I의 화합물은 항생물질을 제조하는데 사용될 수 있다.
Patent KR-19990067554-A (KR)
Title: 사출몰드로부터 단부 개방형 벨로우즈부를 분리시키는 방법
IPC: B29L23/18
Filed: 1996-10-25
Abstract: 사출몰드로부터 탄성 벨로우즈부 (22) 를 분리시키는 방법은 스플릿 캐비티 (30) 로 둘러싸인 서로 일치하는 축선을 갖는 코어핀 (28) 과 분리봉 (38) 둘레에서 탄성 벨로우즈부를 사출성형하는 단계를 포함한다.   상기 벨로우즈부 (22) 는 두 개의 개방단 (44,50) 을 가지며, 개방단 (44) 은 실질적인 강성을 지니고 있으며 또한 그를 통과하는 분리봉 (38) 으로 막혀 있다.   제 2 개방단 (50) 은 탄성이 있다.  다른 단계로서는, 벨로우즈부 (22) 를 코어핀 (28) 으로부터 분리할 수 있도록 스플릿 캐비티를 개방하는 단계가 있다.  또 다른 단계로서는, 탄성 벨로우즈부를 코어핀으로부터 반경방향 외측으로 팽창시키는 단계가 있다.   벨로우즈부를 팽창시키면서, 실질적인 강성을 갖고 있는 벨로우즈부의 상기 개방단 (44) 을 분리봉 (38) 으로 밀게 되면 탄성부 (46) 와 탄성 개방단 (50) 이 코어핀 (28) 으로부터 분리된다.   마지막에는, 벨로우즈부에서 실질적인 강성을 갖는 개방단 (44) 이 분리봉 (38) 으로부터 방출된다.
Patent KR-19990082434-A (KR)
Title: 항균 및(또는) 항바이러스 효과를 갖는 피임약 방출 시스템
IPC: A61K31/4164
Filed: 1997-02-11
Abstract: 본 발명은 질내, 자궁내 또는 자궁경부 방출 시스템에 도입 및 적용을 위한, 화합물이 피임 작용, 항균 작용 및 항바이러스 작용을 갖도록 만드는 (a) 피임 작용을 갖는 1종 이상의 화합물 및(또는) (b) 항균 작용 및(또는) (c) 항바이러스 작용을 갖는 화합물의 조합에 관한 것이다.
Patent KR-19990045839-A (KR)
Title: 아스팔트및콘크리트에사용되는다층인쇄
IPC: G09F7/18
Filed: 1999-01-25
Abstract: 물체의 표면에 간접인쇄를 하는 방법으로 이용되어 왔던 전사체는 기질층(10), 이형층(20), 인쇄층(30), 접착제층(40)으로 구성되고 각각의 구성층을 이루는 화합물은 고유의 기능을 맡고 있다.    종래의 전사체는 전사기능에 큰 비중을 두었고 나머지 기능층에는 비교적 소홀히 여겨왔던 반면에 본 발명에서는 새로운 기능층으로서 고체분말인 유리구슬입자층(26)을 삽입하는 것은 물론이고 각각의 구성층의 기능을 보다 우수하게 발휘 할 수 있도록 최근에 개발된 화합물들로 대체하여 여러 기능을 발휘할 수 있는 다층인쇄개념으로 확장하였다.    또한 연속적으로 코팅을 할 수 있는 코팅장치를 고안하여 다층인쇄체를 제작하였다. 
     재귀반사가 주 기능인 다층인쇄체는 아스팔트 및 콘크리트로 된 포장도로에 잉크지우게 리본과 같은 형태로 반사차선이 인쇄되어 야간 자동차 운전자의 안전에 기여하고, 반사차선의 메카니즘은 도 2에서 보여준다.    그리고 콘크리트의 굴곡요철 표면에 여러형태의 디자인과 그래픽, 및 사진등을 인쇄하고 내구성과 내광성이 우수하여 종래의 건축 내, 외장재를 대체하는 역할도 한다. 이들 다층인쇄체에 사용되는 접착제는 비교적 최근에 개발된 기능성 접착제로서 클로로설폰화폴리에틸렌 (상품명 하이파론) 과 2-시아노아크릴레이트계의 순간접착제를 우선적으로 사용하였고 종래의 상용 접착제로서는 에폭시와 폴리우레탄 계열의 접착제를 순간 열가소성-상온경화형 타입으로 응용하여 시공성과 시공 후의 내구성을 만족하도록 사용하였다.
Patent KR-19990072491-A (KR)
Title: 생분해성코팅조성물
IPC: D06M13/184
Filed: 1999-02-08
Abstract: 본 발명은 생분해성이 우수한 미네랄 오일을 기재로 한 생분해성 코팅 조성물에 관한 것이다.  또한, 본 발명은 플라스틱 성형품, 섬유 또는 실을 드레싱하기 위한 코팅 조성물의 용도에 관한 것이다.  특히, 코팅 조성물은 코팅 조성물로 마무리 처리된 탄성 폴리우레탄 섬유 또는 그로부터 제조된 직물의 추가의 가공시에 잇점을 나타낸다.
Patent KR-19990077573-A (KR)
Title: 전력증폭회로
IPC: H03F3/68
Filed: 1999-03-04
Abstract: 본 발명은 복수개 채널의 오디오 신호를 높은 효율로 증폭하여 고효율로 발열이 적은 전력 증폭기용 IC를 제공하는 것을 목적으로 한다. 
     Vcc 라인(1) 및 GND 라인(2)으로 이루어지는 전원 레일과, 전원 레일 사이의 전원 전압을 2분할한 전위가 공급되는 중간 전원 라인(3)과, 제1 BTL 증폭기(11)와, 제2 BTL 증폭기(12)와, 소신호 입력시에는 제1 BTL 증폭기의 출력 브리지 회로를 중간 전원 라인과 접지 라인 사이에 접속하고 제2 BTL 증폭기의 출력단 트랜지스터를 전원 라인과 중간 전원 라인 사이에 접속하며 대신호 입력시에는 각 BTL 증폭기의 출력 브리지 회로를 전원 레일 사이에 접속하는 전환 회로(SW1∼SW4)와, 각 BTL 증폭기의 순간 차동 이득을 거의 일정하게 유지하는 회로(DNF1, DNF2)를 구비한다.
Patent KR-20000059864-A (KR)
Inventor: LEE YEONG JAE
IPC: G07B15/00
Filed: 1999-03-09
Abstract: PURPOSE: A structure for mounting a data setting board for a parking charge automatic calculator is provided to improve an assembling productivity of parts and implement an easier maintenance of a system when an error occurs in a setting board. CONSTITUTION: A key board member(210) is fixedly engaged in a main body case at a certain slanted angle. At this time, an engaging portion is installed at an upper portion. A setting board(230) is placed in the interior of a covering member(220), and the setting board(230) is fixed to the covering member(220) using a plurality of engaging screws(240). The covering member(220) in which the setting board(230) is installed is installed in the engaging portion(212) of the key board member(210). The covering member(210) covers the key board member(210).
Patent KR-20000060079-A (KR)
Inventor: KIM BYEONG JU
IPC: G03F7/004
Filed: 1999-03-11
Abstract: PURPOSE: Provided is a photosensitive resin composition for the preparation of black matrix, which is used at shading of liquid crystal display and is excellent at chemical resistance, optical density, developing property and surface evenness by controlling the molecular weight of binder resin. CONSTITUTION: The photosensitive resin composition comprises; (1) 1-40 pts.wt. of cardo-based binder resin having 3,000-9,000 of molecular weight, which is copolymered components represented by the formula 1(A), the formula 2(B) and the formula 3(C); (2) 1-20 pts.wt. of acrylic photopolymerization monomer; (3) 0.1-10 pts.wt. of photopolymerization initiator; (4) 5-20 pts.wt of black pigment; and (5) 20-80 pts.wt. of solvent.
Patent KR-20000061510-A (KR)
Inventor: PARK JIN HUN
IPC: G06F9/44
Filed: 1999-03-26
Abstract: PURPOSE: A computer system is provided to execute selectively a program among various programs installed by using a control panel, and allow a user to select an auto execution program before switching on a system power. CONSTITUTION: A computer system comprises a power supply unit, a control panel(300), a power management unit, a processing unit and a memory unit. The control panel(300) includes a rotary switch(R-SW), a plurality of push button switches(SW301,SW302,SW303), a plurality of LEDs, a micro controller(320), a plurality of resistors, and a crystal oscillator(330). The micro controller has resisters for storing a system state information and a rotary switch state information, and a key scan code table. The control panel(300) makes the power supply unit perform and execute selectively an application program in response to an operation of a user. The power management unit receives a power control signal from the control panel(300), and supplies an electric power to the power supply. The processing unit generates an instruction for executing a selected operation by receiving data corresponding to the signals of the switches.
Patent KR-20000074414-A (KR)
Inventor: KIM YU SHIK
Filed: 1999-05-20
Abstract: PURPOSE: An internet advertising intermediation system and method is provided to mediate advertisements for a plurality of advertisers and a plurality of site owners in a many-to-many method on the internet. CONSTITUTION: An internet advertising intermediation system is composed of an advertisement application device(10), an internet network(20) connected with the advertisement application device(10), an advertising intermediation server(30) connected with the internet network(20) and an advertising agent server(40). An advertiser applies for advertisements through the advertisement application device(10). A site owner applies for advertising agency through advertising agent server(40) to insert an advertisement. A computer can be used as the advertisement application device(10) to access the advertising intermediation server(30) through the internet network(20). The advertising agent server(40) is composed of more than an advertising agent server(41-4n) operated by more than a site owner. The advertising intermediation server(30) is comprised of a central processing server(33) and a database server(31).
Patent KR-20000074817-A (KR)
Title: Trench isolation method using a porous silicon layer
Inventor: KOO JA HEUM
IPC: H01L21/76
Filed: 1999-05-26
Abstract: PURPOSE: A trench isolation method using a porous silicon layer is provided to easily perform a process without deteriorating an isolation characteristic, by maintaining a depth of a real trench isolation while reducing the depth of the trench. CONSTITUTION: A trench is formed in a non active region of a semiconductor substrate(10). A spacer(18) is formed on an inner wall of the trench. A porous silicon layer is formed on a bottom surface of the trench. The porous silicon layer is oxidized. The trench is filled up with an insulating material. Also, after the porous silicon layer is oxidized, the oxidized porous silicon layer can be further densified.
Patent KR-20010001693-A (KR)
Inventor: CHO SEOK HYEONG
IPC: H04M1/06
Filed: 1999-06-08
Abstract: PURPOSE: A method for intercepting malicious calls is provided to make a telephone user supply communication services to an unspecified number of the general public in a telephone exchange or a memory, so as to preserve the telephone user from the malicious calls such as prank calls, obscene calls, threatening calls and tempting calls without passing a complex procedure. CONSTITUTION: A called party recognizes a prank call(201), and presses a dual tone multi frequency(DTMF) button to transmit a specific signal for requesting an interception relating to the prank call(202) to an exchange. The exchange connects a transmit channel with a receive channel of an originator relating to the prank call. The transmit/the receive channels of the originator are looped(204). A voice of the originator is transmitted to a telephone receiver of the originator to intercept the prank call.
Patent KR-20010001747-A (KR)
Inventor: JUNG BYEONG SANG
IPC: H04B1/38
Filed: 1999-06-08
Abstract: PURPOSE: A device for vibrating an ear microphone of a wireless telephone set is provided to drive a vibrating motor equipped in the ear microphone when ring data are received under a state that a ring incoming alarm mode of the wireless telephone set is set up as a vibrating mode, and to generate vibration in the ear microphone, so that a ring incoming state is easily and promptly recognized. CONSTITUTION: An ear microphone(40) has jack(46) connected to a wireless telephone(30) set through a connection line(44) in one end, and has a speaker(42) and a microphone(45) in the other end. A controller checks whether ring data are received, and outputs a predetermined control signal corresponding to ring incoming. The first vibrator(64) receives the control signal corresponding to the ring incoming from the controller, to drive a motor equipped in a body of the wireless telephone set. The second vibrator(66) receives the control signal corresponding to the ring incoming from the controller, to drive a motor equipped in a speaker of the ear microphone. A vibration selection switch manages an output control signal provided to the first and the second vibrators(64,66) from the controller.