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公开(公告)号:FR2738438B1
公开(公告)日:2001-10-12
申请号:FR9613644
申请日:1996-11-08
Applicant: KOREA TELECOMM AUTHORITY
Inventor: PARK ILL HWAN , JANG CHUNG RYONG
Abstract: An identification scheme which allows a prover to identify his own identity to a verifier more certainly and prevents already used authentication information from being re-used, a key exchange which uses a common secret key between two users in order not to allow an unauthorized to find it out, a digital signature scheme giving message recovery and digital signature scheme with appendix for producing a digital signature of a message recovery type or appendix type according to the size of a message to be signed, a multi-digital signature scheme for allowing multiple signers to generate digital signatures with respect to the same message and producing them in a message recovery type or appendix type according to the length of the message to be signed, and a blind digital signature scheme for producing a digital signature when a message to be signed should not be opened to the public as well as the signer and therefore a signer does not know the contents thereof.
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公开(公告)号:FR2735307B1
公开(公告)日:2001-10-12
申请号:FR9606473
申请日:1996-05-24
Applicant: KOREA TELECOMM AUTHORITY
Inventor: PARK ILL HWAN , JANG CHUNG RYONG
Abstract: An identification scheme which allows a prover to identify his own identity to a verifier more certainly and prevents already used authentication information from being re-used, a key exchange which uses a common secret key between two users in order not to allow an unauthorized to find it out, a digital signature scheme giving message recovery and digital signature scheme with appendix for producing a digital signature of a message recovery type or appendix type according to the size of a message to be signed, a multi-digital signature scheme for allowing multiple signers to generate digital signatures with respect to the same message and producing them in a message recovery type or appendix type according to the length of the message to be signed, and a blind digital signature scheme for producing a digital signature when a message to be signed should not be opened to the public as well as the signer and therefore a signer does not know the contents thereof.
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公开(公告)号:DE4445346C2
公开(公告)日:2001-08-23
申请号:DE4445346
申请日:1994-12-19
Applicant: KOREA ELECTRONICS TELECOMM , KOREA TELECOMM AUTHORITY SEOUL
Inventor: RYUM BYUNG-RYUL , CHO DEOK-HO , HAN TAE-HYEON , LEE SOO-MIN , KWON OH-JOON
IPC: H01L21/331 , H01L29/737 , H01L29/732
Abstract: Disclosed is a fabrication of a hetero-junction bipolar transistor in which a base parasitic capacitance is fully reduced by using a metallic silicide as a base, comprising the steps of injecting an impurity in a silicon substrate to form a conductive buried collector region; growing a collector epitaxial layer on the buried collector region and forming a field oxide layer; selectively injecting an impurity into the collector epitaxial layer to form a collector sinker; sequentially forming a base layer and an first oxide layer thereon; patterning the first oxide layer to define an extrinsic base region; ion-implanting an impurity in the extrinsic base region using a patterned oxide layer as a mask and removing the patterned oxide layer; depositing a metallic silicide film thereon to form a base electrode thin film; forming a capping oxide layer of about 500 ANGSTROM thickness only on the base electrode thin film; forming an isolating oxide layer thereon and sequentially and selectively removing the isolating oxide layer, the capping oxide layer, the base electrode thin film and the base layer using a patterned photomask to form a pattern, the isolating oxide layer being provided to electrically isolate base and emitter; forming a side wall oxide layer at both side edges of the pattern; removing a portion of the isolating oxide layer to define an emitter region; forming a passivation layer thereon and selectively removing the passivation layer to form contact holes; and depositing a polysilicon layer doped with impurity ions in the contact holes to form electrodes.
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公开(公告)号:ITMI922538A1
公开(公告)日:1994-05-05
申请号:ITMI922538
申请日:1992-11-05
Applicant: KOREA TELECOMM AUTHORITY
Inventor: LEE CHONG RAK , PARK YOUNG KYU
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公开(公告)号:BE1005622A3
公开(公告)日:1993-11-23
申请号:BE9200956
申请日:1992-11-04
Applicant: KOREA TELECOMM AUTHORITY
Inventor: CHONG RAK LEE , YONG KYU PARK
Abstract: la présente invention concerne une technologie relative à un système de synthèse de la parole et utilise une décomposition en forme d'ondes périodiques et un procédé de réeinsertion qui concerne un procédé de codage dans lequel des signaux d'intervalles de sons sonores faisant partie d'un discours original sont décomposés en ondelettes dont chacune correspond à une forme d'ondes de parole pour une période réalisée par chaque impulsion glottale et les ondelettes sont respectivement codées et mises en mémoire, et concerne une technologie par laquelle les ondelettes les plus proches des positions dans lequelles les ondelettes doivent être inséreés sont sélectionnées à partir d'ondelettes mises en mémoire, décodées et superposées l'une à l'autre de telle sorte que la qualité du son original puisse être maintenue et que la durée et la fréquence du pas des segments de discours puissent être réglées de manière arbitraire.
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公开(公告)号:SE9000859D0
公开(公告)日:1990-03-09
申请号:SE9000859
申请日:1990-03-09
Applicant: ELECTRONIC & TELECOMM RES INST , KOREA TELECOMM AUTHORITY
Inventor: LEE K K
IPC: H04J3/12 , H04M3/22 , H04L12/70 , H04L29/02 , H04M3/36 , H04M7/06 , H04Q1/30 , H04Q3/00 , H04Q3/545 , H04Q3/66
Abstract: An internal routing method in an internal network for improving signaling message processing capability by balancing the workload among message handling processors (MHP) in common channel signaling system used in electronic exchanges. An internal routing algorithm is provided in the internal network to balance the workload among MHP's based on the characteristics of a circuit identification code (CIC). An identifying trunk circuit is uniformly distributed, and a load unbalancing factor is formulated approximately as a function of the number of failed MHP's as a worst case. With this approach, all MHP's are loaded almost equally regardless of the number of failed MHP's.
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公开(公告)号:DE19643903B4
公开(公告)日:2006-07-06
申请号:DE19643903
申请日:1996-10-30
Applicant: KOREA ELECTRONICS TELECOMM , KOREA TELECOMM AUTHORITY SEOUL
Inventor: RYUM BYUNG-RYUL , HAN TAE-HYEON , CHO DEOK-HO , LEE SOO-MIN , PYUN KWANG-EUI
IPC: H01L21/331 , H01L29/70 , H01L29/08 , H01L29/737
Abstract: An improved method for fabricating a heterojunction bipolar transistor which includes the steps of forming a buried collector, a collector thin film, and a collector sinker on a semiconductor substrate in order, forming a first silicon oxide film, a base electrode polysilicon layer, a nitride film, and an oxidation film on a resulting substrate exposing the first silicon oxidation film, forming a spacer insulation film at the lateral side of the exposed region, and defining an activation region, exposing the collector thin film of the activation region using a mask, and forming an auxiliary lateral film for an isolation of the device, forming a selective collector region by ion-implantating a dopant to the activation region which is limited by the auxiliary lateral film, removing the auxiliary lateral film, etching the exposed portion in an anisotropic etching method, and forming a shallow trench for a device isolation, forming a polysilicon lateral film to have a height which is the same as the height of the base electrode polysilicon layer on the shallow trench, and forming a self-aligned base.
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公开(公告)号:GB2365190B
公开(公告)日:2004-02-04
申请号:GB0031064
申请日:2000-12-20
Applicant: KOREA TELECOMM AUTHORITY
Inventor: CHI HYUNG IN , HUI IL CHANG , CHUNG IL KIM
IPC: G06Q20/10 , G06Q20/32 , G06Q10/00 , G06Q40/00 , G06Q40/02 , G06Q40/04 , G06Q50/00 , H04B7/26 , H04W4/14 , H04W4/24 , H04W12/00 , H04W12/06 , H04W60/00 , H04W64/00 , H04W88/18 , G07F7/10 , H04Q7/22
Abstract: The present invention relates to a money service apparatus for an IMT-2000 network and a method of the same which implements the information concerning a location of an IMT-2000 ID card and a terminal and functions for indicating the amount of money at the current rate of the foreign currency to a subscriber's own country's currency, remitting payment, making money transfer, and delivering a written notice and public notice. The money service apparatus for an IMT-2000 network includes a money service apparatus wherein the identification numbers of a terminal connected with the IMT-2000 network and a card are recognized and are provided to the subscriber, wherein a money exchange information service is provided; wherein the current location of the subscriber is searched when the subscriber requests the information on the amount of money that is converted to the local country's currency where he is located, applying the money exchange rate to his own country's currency, and then the information is provided to the termina; wherein in the case that the subscriber sets an called subscriber and requests a cash transfer to the called subscriber side, the money exchange information is searched through the money exchange information service, and the cash is provided to the called subscriber, and wherein in the case that the subscriber sets a bank account and requests a cash transfer to the bank, the money exchange rate information is searched through the money exchange information service, and the money transfer is performed to the bank.
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公开(公告)号:GB2365190A
公开(公告)日:2002-02-13
申请号:GB0031064
申请日:2000-12-20
Applicant: KOREA TELECOMM AUTHORITY
Inventor: CHI HYUNG IN , HUI IL CHANG , CHUNG IL KIM
IPC: G06Q20/10 , G06Q20/32 , G06Q10/00 , G06Q40/00 , G06Q40/02 , G06Q40/04 , G06Q50/00 , H04B7/26 , H04W4/14 , H04W4/24 , H04W12/00 , H04W12/06 , H04W60/00 , H04W64/00 , H04W88/18 , G07F7/10 , H04Q7/22
Abstract: The present invention relates to a money service apparatus for an IMT-2000 network and a method of the same which implements the information concerning a location of an IMT-2000 ID card and a terminal and functions for indicating the amount of money at the current rate of the foreign currency to a subscriber's own country's currency A7, A63, remitting payment, making money transfer, and delivering a written notice and public notice. The money service apparatus for an IMT-2000 network includes a money service apparatus wherein the identification numbers of a terminal connected with the IMT-2000 network and a card are recognized and are provided to the subscriber, wherein a money exchange information service is provided; wherein the current location of the subscriber is searched when the subscriber requests the information on the amount of money that is converted to the local country's currency where he is located, applying the money exchange rate to his own country's currency, and then the information is provided to the terminal; wherein in the case that the subscriber requests a cash transfer to the called subscriber side, the money exchange information is searched through the money exchange information service, and the cash is provided to the called subscriber, and wherein in the case that the subscriber requests a cash transfer to the bank, the money exchange rate information is searched through the money exchange information service, and the money transfer is performed to the bank. A SMS message can be provided to verify transaction (Fig 3B).
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