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    HADAMARD CODE GENERATING CIRCUIT
    31.
    发明专利
    HADAMARD CODE GENERATING CIRCUIT 失效

    公开(公告)号：JPH11177529A

    公开(公告)日：1999-07-02

    申请号：JP23784198

    申请日：1998-08-24

    Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUN

    Inventor： GYO EKISHU ,  TEI KOICHI ,  KIM KYUNG-SOO

    IPC: H03K3/84 ,  H04J11/00 ,  H04J13/00 ,  H04J13/12 ,  H04L23/00 ,  H04J13/04

    Abstract: PROBLEM TO BE SOLVED: To provide the Hadamard code generating circuit by which 48th Hadamard code among orthogonal codes required to generate a signal or to extract the generated signal in the CDMA communication system. SOLUTION: The 48th Hadamard code generating circuit is made up of a 2-bit counter 24 that generates 4th Hadamard codes in low-order 2-bit, a 4-bit counter 21 that is operated by a carry output of the 2-bit counter 24 and produces a high-order Paley code having 12 states, a 6-bit reference counter 25 having 48 states by external reset, a 6-bit register 26 that stores an index value, and an exclusive OR gate 30 that exclusively Ors the high-order 12 Palye code and the 4th Hadamard code in the low-order 2-bit to produce the final 48th Hadamard code.

    MOBILE DATA PROCESSING SYSTEM AND METHOD FOR CONTROLLING DATA COINCIDENCE OF MOBILE TERMINAL EQUIPMENT
    32.
    发明专利
    MOBILE DATA PROCESSING SYSTEM AND METHOD FOR CONTROLLING DATA COINCIDENCE OF MOBILE TERMINAL EQUIPMENT 失效

    公开(公告)号：JPH1132368A

    公开(公告)日：1999-02-02

    申请号：JP33303797

    申请日：1997-12-03

    Applicant: KOREA TELECOMMUN AUTHORITY

    Inventor： RI SHUHYON ,  RI TAKUGEN ,  HOAN INKAN ,  KIN KIKYO

    IPC: H04W24/04 ,  H04Q7/38

    Abstract: PROBLEM TO BE SOLVED: To increase the execution ratio of a mobile transaction by inspecting the coincidence of overlapped data at the time of storing changed content, of data. SOLUTION: A system is provided with central processing units 11 and 18, main memories 12 and 17, hard disks 13 and 19, data base management system 14, communication module 15, and radio communication module 16. Then, when all time values at the time of correcting data received from a mobile terminal equipment the most recently are coincident with all time values at the time of correcting data stored in the mobile data processing system at present the most recently, the executed results received from the mobile terminal equipment are stored in the data of a mobile data base, and otherwise, an execution failure message is transmitted to the mobile terminal equipment. Thus, when a response message is received within a constant time from the mobile terminal equipment, transition to the first process is attained, and when any response message is not received within a constant time, an error message is printed on a system manager.

    COMPOSITE TESTER FOR MECHANICAL CHARACTERISTICS OF OPTICAL CONNECTOR
    33.
    发明专利
    COMPOSITE TESTER FOR MECHANICAL CHARACTERISTICS OF OPTICAL CONNECTOR 失效

    公开(公告)号：JPH10332538A

    公开(公告)日：1998-12-18

    申请号：JP34400797

    申请日：1997-11-28

    Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUN

    Inventor： AN SHOKO ,  PARK SANG HO ,  ZEN GOKON ,  TEI MEIEI ,  SAI TAIKYU ,  CHO KANDAI

    IPC: G01M13/00 ,  G01M7/08 ,  G01M11/00 ,  G01M11/08 ,  G01N3/08 ,  G01N3/14 ,  G01N3/20 ,  G01N3/303 ,  G02B6/24 ,  G02B6/38

    Abstract: PROBLEM TO BE SOLVED: To evaluate various characteristics simultaneously by integrating testers for various characteristics thereby enhancing the efficiency of the tester. SOLUTION: The tester comprises a rotary section 101 being driven through a motor such that a tensile test, a bending test and a strain test can be carried out, a control section 103 fixed to one side of the rotary section 101 and controlling the speed and the number of times of test being carried out, and an impact test section 102 fixed to the opposite side of the rotary section 101 and performing an impact test by falling a test piece while adjusting the height thereof freely. Since the tester evaluates the tensile characteristics, the bending characteristics, the strain characteristics, the impact characteristics, and the like, simultaneously, the measuring time can be shortened while reducing the labor and the mechanical characteristics can be evaluated efficiently and economically. Consequently, the mechanical characteristics can be evaluated accurately and reliably using a precisely manufactured tester.

    NB2P ENCODER AND DECODER
    35.
    发明专利
    NB2P ENCODER AND DECODER 失效

    公开(公告)号：JPH10190469A

    公开(公告)日：1998-07-21

    申请号：JP18624097

    申请日：1997-07-11

    Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUN

    Inventor： KIN CHINEI ,  RI HANTETSU ,  BOKU KENTETSU

    IPC: H03M7/14 ,  H03M5/08 ,  H03M13/11 ,  H03M13/31 ,  H04B3/04 ,  H04L7/00

    Abstract: PROBLEM TO BE SOLVED: To provide nB2P encoder and decoder to simultaneously provide a line code function and a channel code function in a transmission line and a link. SOLUTION: An nB2P encoder divides inputted parallel data into a fixed data unit, converts data that is encoded by adding an odd parity to each divided data unit and a block synchronizing signal that is set by preliminarily making the encoded data perform code violation into serial data through a selection signal and outputs it. The nB2P encoder detects a block synchronizing signal by using a code violation pattern that is preliminarily set, converts encoded data into parallel data through a byte timing, detects an error of encoded data by checking an odd parity and decodes it into original data by eliminating the parity.

    HIGH-OUTPUT SEMICONDUCTOR LASER AND ITS MANUFACTURE
    36.
    发明专利
    HIGH-OUTPUT SEMICONDUCTOR LASER AND ITS MANUFACTURE 失效

    公开(公告)号：JPH10173287A

    公开(公告)日：1998-06-26

    申请号：JP33012797

    申请日：1997-12-01

    Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUN

    Inventor： RI JUKI ,  BOKU KEIGEN ,  CHO GOSEI ,  CHO TOFUN ,  BOKU CHORUJUN

    IPC: H01S5/00 ,  H01S3/0941 ,  H01S5/042 ,  H01S5/20 ,  H01S3/18

    Abstract: PROBLEM TO BE SOLVED: To offset the unbalanced distribution of light in the longitudinal direction of a resonator by modulating the gain of an active area in the longitudinal direction in the same period as that of ion implantation by means of an ion- implanted area. SOLUTION: After ions are implanted into an area by using an insulating film and a photoresist as a mask and the photoresist and insulating film are removed, the front and rear surfaces of an element are coated with Si3 N4 insulating films and the insulting films are heat-treated at a high temperature so as to insulate the ion-implanted area. Then secondary crystal growth is performed in the order of a GaInP clad layer 17, a GaInAsP buffer layer 18, and GaAs 19 for forming ohmic contact. Then, after the insulating films are removed, the entire surfaces of etched ridges are coated with Si3 N4 , etc., and, after forming current injecting ports at the upper ends of the ridges, p-side electrodes 22 are formed by vapor deposition. Therefore, the gain of an active layer in the longitudinal direction can be modulated in the same period as that of the ion implantation by means of the ion-implanted area.

    DEVICE FOR MEASURING AND CONTROLLING CELL FLOW FOR EACH CONNECTION
    37.
    发明专利
    DEVICE FOR MEASURING AND CONTROLLING CELL FLOW FOR EACH CONNECTION 失效

    公开(公告)号：JPH10107811A

    公开(公告)日：1998-04-24

    申请号：JP14232597

    申请日：1997-05-30

    Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUN AUTHORITY

    Inventor： SAN HO LEE ,  HYOPU-CHON KIM

    IPC: H04Q3/00 ,  H04L12/28

    Abstract: PROBLEM TO BE SOLVED: To provide a low-cost circuit by operating a negotiation violation detection circuit for virtual connection to pertinent connection for which the cell of a specified connection is inputted. SOLUTION: A cell counting means 3 receives reception, abandonment and tags in input, counts reception cells and violation cells and stores them in a first storage means 1 for storing a traffic parameter, a variable and the value of cell counting for each connection. A negotiation violation detection means 4 detects the cells exceeding a negotiated traffic rate and an input cell filtering means 5 provides a cell length error detection function and a cell slot mode. Then, an output cell filtering means 7 receives a negotiation violation result in the input, is connected to a CPU matching means 2 while receiving cell data from a second storage means 6 for storing cell data to the input, controls abandonment and tag operations as a measure for a negotiation violation and outputs the reception, the abandonment and the tag to the cell counting means 3.

    AUTOMATIC TELEPHONE REPLY SERVICE EQUIPMENT AND ITS METHOD USING INTELLIGENCE INFORMATION SERVICE SYSTEM
    38.
    发明专利
    AUTOMATIC TELEPHONE REPLY SERVICE EQUIPMENT AND ITS METHOD USING INTELLIGENCE INFORMATION SERVICE SYSTEM 失效

    公开(公告)号：JPH1075308A

    公开(公告)日：1998-03-17

    申请号：JP15127797

    申请日：1997-06-09

    Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUN

    Inventor： KUANNJIE CHON

    IPC: H04M3/50 ,  H04M3/42 ,  H04M3/533

    Abstract: PROBLEM TO BE SOLVED: To send a voice message during a speech or during absence even when a general telephone network subscriber does not possess an automatic reply telephone set by storing a voice message to an intelligence information service system (IP). SOLUTION: When a local exchange LE recognizes an automatic telephone reply service request, an intelligent network service exchange (SSP) 104 triggers a service logic and makes a service request to a service controller (SCP) 101 and the IP 105 is used to make routing. The IP 105 is controlled by the SCP 101 through the SSP 104, serves a special resource to the service user and collects or stores input data from the service user. The SCP 101 has the service logic and data required for the service to control and process the automatic telephone reply service. A service management system(SMS) 102 revises and manages data and logic required to conduct the service. A signal repeater (STP) 103 sends an SSNo.7 message between the SCP 101 and the SSP 104.

    Recovery-type and appendix-type electronic signature methods, key-exchange method and recovery-type public and blind electronic signature methods
    39.
    发明专利
    Recovery-type and appendix-type electronic signature methods, key-exchange method and recovery-type public and blind electronic signature methods 审中-公开

    公开(公告)号：JP2004129303A

    公开(公告)日：2004-04-22

    申请号：JP2003419910

    申请日：2003-12-17

    Applicant: Korea Telecommun Authority ,  コリア テレコミュニケーション オーソリティ

    Inventor： PARK ILL HWAN ,  JANG CHUNG RYONG

    IPC: H04L9/08 ,  G06F9/06 ,  G09C1/00 ,  H04L9/32

    CPC classification number: H04L9/3257 ,  H04L2209/60

    Abstract: PROBLEM TO BE SOLVED: To prevent forgeries involved in recovery-type, appendix-type, recovery-type public and blind electronic signature methods and key-exchange method.
    SOLUTION: The methods are blind electronic signature method, wherein a signer A selects an arbitrary number r between 1 and q to calculate a remainder x (x≡mg
    -r mod p), obtained by multiplying g by -r and then by multiplying the product, g
    -r by a message m and dividing the resultant product by p. The signer A inputs x and the signer's identification number ID
    A to the hash function to obtain h(x,ID
    A ). Then, the signer multiplies the obtained result by the signer's secret key a, adding r to the product, then divides by q to obtain the remainder y (y≡r+ah(x,ID
    A )mod q). Thereby, (x, y) becomes the recovery type electronic signature for the message m. The verifier confirms the contents of the message restored, as a result of the verification and verifies the validity of the signature. Reliability of a system can be enhanced, by exchanging shared secret keys between two users, without the knowledge of a third party.
    COPYRIGHT: (C)2004,JPO

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