WO1992002702A1 - Programmation a distance des fonctions d'un vehicule - Google Patents

Programmation a distance des fonctions d'un vehicule Download PDF

Info

Publication number
WO1992002702A1
WO1992002702A1 PCT/US1991/005612 US9105612W WO9202702A1 WO 1992002702 A1 WO1992002702 A1 WO 1992002702A1 US 9105612 W US9105612 W US 9105612W WO 9202702 A1 WO9202702 A1 WO 9202702A1
Authority
WO
WIPO (PCT)
Prior art keywords
security code
receiver
field programming
function
generate
Prior art date
Application number
PCT/US1991/005612
Other languages
English (en)
Inventor
George P. Lambropoulos
Carl Kona
Original Assignee
Trw Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trw Inc. filed Critical Trw Inc.
Priority to JP3515622A priority Critical patent/JPH0777847B2/ja
Priority to KR1019930700378A priority patent/KR930701675A/ko
Publication of WO1992002702A1 publication Critical patent/WO1992002702A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00817—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G07C2009/00206—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks the keyless data carrier being hand operated
    • G07C2009/00222—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks the keyless data carrier being hand operated by more than one push button
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means

Definitions

  • This invention relates generally to remotely-controlled vehicle locking systems and, more particularly, to the use of such a system to program the function of electrically-controlled vehicle functions.
  • door lock Electrically-controlled vehicle door and trunk locking/unlocking (door lock) systems have become increasingly popular. To enhance their performance, many types of keyless entry systems have been provided for these door lock systems.
  • a hard-wired numeric keypad usually comprising five input keys, is provided on the vehicle door. Manipulation of the keys input a security code to lock/unlock the vehicle's doors and/or trunk. Operation of this system requires memorization of a security code and maintaining the secrecy of the security code.
  • An improvement on this type of keyless entry system is a remote control system which utilizes a hand-held transmitter that emits an infra-red beam to a vehicle-mounted receiver to effect locking and unlocking of the doors and/or trunk.
  • a security code is programmed into both receiver and transmitter. This eliminates the necessity of memorizing a security code or keeping it secret.
  • Such a system has limited utility since it requires a clear, straight line (line-of-sight) path between transmitter and receiver to function.
  • a remote control of this type is shown in U.S. Patent No. 4,573,046 to Pinnow.
  • An improvement on this remote system utilizes a hand-held transmitter which emits a radio frequency signal to a vehicle-mounted receiver for effecting the lock/unlock functions. To function, a transmitter need only be within range of the receiver.
  • a drawback of this type system is that transmitter and receiver must be matched.
  • a remote control system described in U.S. Patent No. 4,893,240 to Karkouti provides for the remote initiation of the gas pumping, engine starting, heater actuation, air conditioning initiation, and defroster start-up by depressing an appropriate function key on the transmitter keypad.
  • Keypad-type keyless entry systems which are currently available feature the ability to manipulate the keys in a predetermined sequence, after a master code is entered, to disable an automatic door lock
  • ADL Normally this ADL automatically locks/unlocks the vehicle doors upon actuation of the ignition switch to on/off position.
  • the keypad manipulation requires memorization of another key sequence. It would be desirable to provide a remote control type of keyless entry system that features the expanded capability of controlling other electrically- operated vehicle functions.
  • a remote control system has a transmitter with means for transmitting two-part signals of binary bits each containing a security code and a different function code.
  • a receiver is mounted to a support structure and is operative to generate control signals for effecting at least two primary functions and affecting operation of at least one secondary function.
  • the receiver comprises a memory for storing a security code of binary bits, and a comparator for comparing the security code of a received signal with said stored security code to generate a control signal for effecting the indicated primary function upon detecting a security code match.
  • Field programming means are provided on the receiver to initiate field programming time periods; the receiver is operable during a field programming period to generate a control signal for affecting operation of a secondary function upon receipt of a predetermined sequence of signals.
  • a remote control vehicle door locking system has a transmitter with means for transmitting two-part signals of binary bits each containing a security code and a different function code.
  • a receiver is mounted in a vehicle and is operative to generate control signals for effecting primary door locking and unlocking functions and for enabling and disabling operation of at least one secondary function.
  • the receiver comprises a memory for storing a security code of binary bits, and a comparator for comparing the security code of a received signal with said stored security code to generate a control signal for effecting the indicated primary function upon detecting a security code match.
  • Field programming means are provided on the receiver to initiate field programming time periods, during which a secondary control signal is generated to disable operation of a secondary vehicle function upon receipt of a predetermined sequence of signals from the transmitter.
  • the secondary function may be enabled during a subsequent field programming period upon receipt of a signal.
  • the receiver may also include means for maintaining the disabled operational status of a secondary function upon restoration of power to the receiver following a power failure.
  • the receiver includes means for maintaining the disabled operational status of a secondary function upon restoration of power to the receiver following a power failure.
  • DRAWING DESCRIPTION Fig. 1 is a perspective sketch of a vehicle and operator utilizing a remote control system utilizing a receiver according to this invention
  • Fig.2 is a plan view of a transmitter which is manipulated to effect functioning of a receiver in accordance with this invention.
  • Fig. 3 is a side view of the transmitter.
  • a vehicle operator 10 is shown approaching an automobile 20 which has been previously locked.
  • the operator is manipulating a hand-held transmitter 30 to communicate with a vehicle-mounted receiver 40 to unlock the vehicle doors (one of which 22 is shown) and/or trunk lid (not shown) , as will be later described.
  • the transmitter and receiver preferably utilize radio frequency signals having a nominal frequency of 310 MHz, as described in the aforementioned Lambropoulos patent.
  • transmitter includes a door "unlock” button 32, a door “lock” button 34, and a “trunk” unlock button 36 mounted in a plastic case 38.
  • the transmitter 30 preferably contains circuitry as described in the Lambropoulos patent for transmitting two-part signals containing a security code portion and a function code portion corresponding to the function desired to be accomplished.
  • the signal preferably contains a so-called "wake-up" portion, but in any event, contains the security and function code portions.
  • Receiver 40 includes a signal detector, a comparator and a memory (denoted as 60, 80 and 100, respectively, in the Lambropoulos patent) .
  • actuation of button 32 will cause the receiver 40 to effect unlocking of the doors 22 of the vehicle 20.
  • actuation of button 34 will effect locking of the doors, and actuation of button 36 will effect unlocking of the vehicle trunk.
  • the operation of the receiver 40 to accomplish the above functions is fully disclosed in the Lambropoulos patent.
  • This invention utilizes the transmitter buttons 32 - 36 to accomplish not only the primary vehicle functions described above, but also one or more secondary functions, as will now be described.
  • Vehicle 20 is schematically illustrated as being provided with a number of electrically-controlled "secondary" functions, as follows:
  • Automatic door locking normally occurs a set period of time, such as 30 seconds, after the ignition key is removed.
  • a horn chirp (52) may be provided upon vehicle locking to indicate this status.
  • the horn may also be activated if vehicle security, as detected by security system 60, is breached.
  • the security system may also include provision to inhibit ignition operation (54) . Repositioning of the driver's seat (56) upon unlocking of the vehicle and automatic actuation of entry illumination (58) may also occur upon vehicle unlocking.
  • automatic door locking may be a hindrance in a parking lot; it may be desirable to deactivate operation of the entire security system or portions thereof when the vehicle is being repaired. It would be desirable for a driver other than the one for whom the seat is pre-set to deactivate operation of the automatic seat repositioning function.
  • An operator may wish to disable operation of the automatic entry illumination to enable operation at night without drawing attention to this operation.
  • the horn chirp may be a nuisance for an operator who does not wish to wake up his neighbors.
  • a receiver grounding switch 86 is closed to initiate a field programming period, during which additional or different security codes can be programmed into the receiver from different transmitters.
  • buttons 32, 34 or 36 are actuated to store the security code of transmitter 30 in all receiver registers, as fully explained in the Lambropoulos patent; the door locks will cycle as a feedback.
  • Another transmitter may then be similarly operated to store its security code in receiver 40.
  • Either transmitter is operated to actuate the buttons in a predetermined sequence, such as 32- 34-36, 32-34-36, 32-34-36, whereupon the receiver will generate a signal to disable the automatic door lock function.
  • buttons in sequence such as 32-34, 32-34, 32-34.
  • any number of methods can be used.
  • the procedure used is to simply repeat steps 1-3 above and operation of all disabled functions will be enabled.
  • other procedures could be utilized and are contemplated within the scope of this invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Lock And Its Accessories (AREA)
  • Selective Calling Equipment (AREA)

Abstract

Un système de verrouillage à distance des portières d'un véhicule possède un émetteur (30) destiné à transmettre des signaux en deux parties de bits binaires dont chacun renferme un code de sécurité et un code fonctionnel différent. Un récepteur (40) est monté dans un véhicule (20) et sert à générer des signaux de commande effectuant des fonctions primaires de verrouillage et de déverrouillage des portières du véhicule, et servant à valider et à invalider au moins une fonction secondaire, par exemple un système de sécurité (60). Le récepteur (4) comporte une mémoire stockant un code de sécurité de bits binaires, et un comparateur comparant le code de sécurité d'un signal reçu avec le code de sécurité stocké afin de générer un signal de commande destiné à effectuer ladite fonction primaire de verrouillage des portières lorsque les codes correspondent l'un à l'autre. Le récepteur (40) peut amorcer des périodes de programmation par l'utilisateur pendant lesquelles il génère un signal de commande secondaire destiné à invalider la fonction secondaire lors de la réception d'une séquence prédéterminée de signaux provenant d'un émetteur (30). La fonction secondaire est validée lors de la réception d'un signal au cours d'une période ultérieure de programmation par l'utilisateur.
PCT/US1991/005612 1990-08-08 1991-08-07 Programmation a distance des fonctions d'un vehicule WO1992002702A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP3515622A JPH0777847B2 (ja) 1990-08-08 1991-08-07 乗物の機能の遠隔プログラム
KR1019930700378A KR930701675A (ko) 1990-08-08 1991-08-07 차량 기능의 원격 제어 시스템

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56441390A 1990-08-08 1990-08-08
US564,413 1990-08-08

Publications (1)

Publication Number Publication Date
WO1992002702A1 true WO1992002702A1 (fr) 1992-02-20

Family

ID=24254375

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/005612 WO1992002702A1 (fr) 1990-08-08 1991-08-07 Programmation a distance des fonctions d'un vehicule

Country Status (5)

Country Link
EP (1) EP0542906A1 (fr)
JP (1) JPH0777847B2 (fr)
KR (1) KR930701675A (fr)
AU (1) AU8532291A (fr)
WO (1) WO1992002702A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0570103A2 (fr) * 1992-04-10 1993-11-18 Trw Inc. Système de sécurité commandé à distance
US5612669A (en) * 1995-04-14 1997-03-18 Kenneth E. Flick Vehicle security system having enhanced false alarm compensation
US5654688A (en) * 1995-04-14 1997-08-05 Omega Research And Development, Inc. Vehicle security system having enhanced remote transmitter security
US5663704A (en) * 1995-04-14 1997-09-02 Kenneth E. Flick Vehicle security system having enhanced door locking features
US5729191A (en) * 1995-04-14 1998-03-17 Kenneth E. Flick Vehicle security system having enhanced control features
EP0871151A2 (fr) * 1997-04-08 1998-10-14 Foxguard Group Limited Système de sécurité individuel
DE19729867A1 (de) * 1997-07-11 1999-01-14 Bayerische Motoren Werke Ag Fahrzeug mit einem tragbaren Fernbedienungs-Sender und einem Schlüssel sowie Verfahren zum Gebrauch dieses Fahrzeugs
FR2768762A1 (fr) * 1997-09-24 1999-03-26 Pierre Lafond Systeme de verrouillage/deverrouillage de meubles a distance
EP0886024A3 (fr) * 1997-06-18 1999-11-24 Marquardt GmbH Clé électronique
US6140938A (en) * 1995-04-14 2000-10-31 Flick; Kenneth E. Remote control system suitable for a vehicle and having remote transmitter verification
US6480095B1 (en) 1995-04-14 2002-11-12 Omega Patents, L.L.C. Vehicle control system including multi-digit control switch and associated methods
KR100562486B1 (ko) * 1999-04-01 2006-03-21 삼성전자주식회사 보안코드를 구비한 리모트 콘트롤러의 보안코드 설정 방법
US7737820B2 (en) 1995-04-14 2010-06-15 Omega Patents, L.L.C. Remote control system for an access door having remote transmitter verification
EP2955068A1 (fr) * 2014-06-10 2015-12-16 CLAAS Tractor S.A.S. Véhicule doté d'un dispositif de contrôle d'identité
CN106240521A (zh) * 2015-06-05 2016-12-21 福特全球技术公司 用于远程车辆键盘启用和禁用的方法及设备
EP3078000B1 (fr) * 2013-12-03 2021-04-21 Huf North America Automotive Parts Mfg. Corp. Protocoles pour systèmes d'accès à distance pour véhicules

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU650410B3 (en) * 1992-10-05 1994-06-16 Pyk Pty. Ltd. A lock system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494534A1 (fr) * 1980-11-19 1982-05-21 Rau Swf Autozubehoer Circuit de commande pour elements electriques de vehicules automobiles
EP0139059A1 (fr) * 1983-10-26 1985-05-02 John Robert Carter Transmissions de données et systèmes de fermeture
US4881148A (en) * 1987-05-21 1989-11-14 Wickes Manufacturing Company Remote control system for door locks
WO1990008242A1 (fr) * 1989-01-10 1990-07-26 Bayerische Motoren Werke Aktiengesellschaft Systeme de securite pour vehicules automobiles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2815367B2 (ja) * 1988-06-29 1998-10-27 富士通テン株式会社 自動車のドアの窓の開閉制御装置
JPH02162997A (ja) * 1988-12-16 1990-06-22 Honda Motor Co Ltd 自動車用遠隔操作装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494534A1 (fr) * 1980-11-19 1982-05-21 Rau Swf Autozubehoer Circuit de commande pour elements electriques de vehicules automobiles
EP0139059A1 (fr) * 1983-10-26 1985-05-02 John Robert Carter Transmissions de données et systèmes de fermeture
US4881148A (en) * 1987-05-21 1989-11-14 Wickes Manufacturing Company Remote control system for door locks
WO1990008242A1 (fr) * 1989-01-10 1990-07-26 Bayerische Motoren Werke Aktiengesellschaft Systeme de securite pour vehicules automobiles

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0570103A2 (fr) * 1992-04-10 1993-11-18 Trw Inc. Système de sécurité commandé à distance
EP0570103A3 (fr) * 1992-04-10 1994-08-03 Trw Inc
US6480095B1 (en) 1995-04-14 2002-11-12 Omega Patents, L.L.C. Vehicle control system including multi-digit control switch and associated methods
US6130606A (en) * 1995-04-14 2000-10-10 Flick; Kenneth E. Vehicle security system having transmitter verification and pseudorandom coding features and related methods
US5663704A (en) * 1995-04-14 1997-09-02 Kenneth E. Flick Vehicle security system having enhanced door locking features
US5729191A (en) * 1995-04-14 1998-03-17 Kenneth E. Flick Vehicle security system having enhanced control features
US5818329A (en) * 1995-04-14 1998-10-06 Kenneth E. Flick Vehicle security system having enhanced remote transmitter security
US6366198B1 (en) 1995-04-14 2002-04-02 Kenneth E. Flick Vehicle security system having transmitter learning and feature programming based on a single-digit user code and related methods
US5654688A (en) * 1995-04-14 1997-08-05 Omega Research And Development, Inc. Vehicle security system having enhanced remote transmitter security
US6140938A (en) * 1995-04-14 2000-10-31 Flick; Kenneth E. Remote control system suitable for a vehicle and having remote transmitter verification
US6184780B1 (en) 1995-04-14 2001-02-06 Kenneth E. Flick Vehicle security system having enhanced valet feature and related methods
US5982277A (en) * 1995-04-14 1999-11-09 Flick; Kenneth E. Vehicle security system having enhanced convenience features
US5612669A (en) * 1995-04-14 1997-03-18 Kenneth E. Flick Vehicle security system having enhanced false alarm compensation
US7737820B2 (en) 1995-04-14 2010-06-15 Omega Patents, L.L.C. Remote control system for an access door having remote transmitter verification
US6320514B1 (en) 1995-04-14 2001-11-20 Kenneth E. Flick Remote control system suitable for a vehicle and having remote transmitter verification
EP0871151A3 (fr) * 1997-04-08 1999-06-02 Foxguard Group Limited Système de sécurité individuel
EP0871151A2 (fr) * 1997-04-08 1998-10-14 Foxguard Group Limited Système de sécurité individuel
EP0886024A3 (fr) * 1997-06-18 1999-11-24 Marquardt GmbH Clé électronique
DE19729867A1 (de) * 1997-07-11 1999-01-14 Bayerische Motoren Werke Ag Fahrzeug mit einem tragbaren Fernbedienungs-Sender und einem Schlüssel sowie Verfahren zum Gebrauch dieses Fahrzeugs
DE19729867B4 (de) * 1997-07-11 2006-04-27 Bayerische Motoren Werke Ag Fahrzeug mit einem tragbaren Fernbedienungs-Sender und einem Schlüssel sowie Verfahren zum Gebrauch dieses Fahrzeugs
FR2768762A1 (fr) * 1997-09-24 1999-03-26 Pierre Lafond Systeme de verrouillage/deverrouillage de meubles a distance
KR100562486B1 (ko) * 1999-04-01 2006-03-21 삼성전자주식회사 보안코드를 구비한 리모트 콘트롤러의 보안코드 설정 방법
EP3078000B1 (fr) * 2013-12-03 2021-04-21 Huf North America Automotive Parts Mfg. Corp. Protocoles pour systèmes d'accès à distance pour véhicules
EP2955068A1 (fr) * 2014-06-10 2015-12-16 CLAAS Tractor S.A.S. Véhicule doté d'un dispositif de contrôle d'identité
CN106240521A (zh) * 2015-06-05 2016-12-21 福特全球技术公司 用于远程车辆键盘启用和禁用的方法及设备
CN106240521B (zh) * 2015-06-05 2020-08-21 福特全球技术公司 用于远程车辆键盘启用和禁用的方法及设备

Also Published As

Publication number Publication date
JPH06501435A (ja) 1994-02-17
AU8532291A (en) 1992-03-02
EP0542906A1 (fr) 1993-05-26
KR930701675A (ko) 1993-06-12
JPH0777847B2 (ja) 1995-08-23

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