中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

11 records (took 0.019 seconds)

    TRANSACTION EXECUTION SYSTEM
    1.
    发明专利
    TRANSACTION EXECUTION SYSTEM 未知

    公开(公告)号：DE2960795D1

    公开(公告)日：1981-12-03

    申请号：DE2960795

    申请日：1979-01-30

    Applicant: IBM

    Inventor： ANDERSON ROBERT WHITCOMB ,  BROCK STEVEN FRANKLIN ,  GEE MAY LEW

    IPC: G07F7/08 ,  G06Q20/38 ,  G06Q20/40 ,  G07D1/00 ,  G07F7/10 ,  G06F15/30 ,  G07C11/00

    Abstract: This invention relates to a transaction execution system. An embodiment of the invention provides a plurality of transaction terminals (1) in communication with a host data processing system (11). The terminals each include a keyboard (3), a display, document handling subsystems, a hardware control subsystem, a communication subsystem and a programmable control subsystem supervising the other subsystems. A user initiates a transaction request by inserting a card, which may have been issued by any of a plurality of cooperating card issuers or banks, into a card reader (2) of the terminals. The issuer identification number (9) is read from the card, and used to search a table (8) of card format and encryption key data. If the corresponding format and key data is located in the table, the terminal requests entry of a preassigned personal ID number (7) through the keyboard. Verification data located on the card by format data from the table is encrypted (5) in response to the key data from the table for comparison (6) with the keyboard entered ID number. If the corresponding format and key data is not located in the table, the card data is sent to the host (11), which accesses a master table (10) with the issuer identification number, and communicates back to the terminal the corresponding format and key data located in the master table. Once the terminal has checked for correspondence between encrypted verification data and the ID number, in response to format and key data from its own table or communicated from the host, additional transaction data is obtained via the keyboard. Upon command from the host, the host supplied format and key data is purged by the terminal at completion of the transaction, or else retained for future reference.

    6.
    发明专利
    未知

    公开(公告)号：DE3850192D1

    公开(公告)日：1994-07-21

    申请号：DE3850192

    申请日：1988-08-23

    Applicant: IBM

    Inventor： ANDERSON ROBERT WHITCOMB ,  GEE RALPH LEONARD ,  INDELICATO JASPER ANTHONY ,  PATEL ARVIND MOTIBHAI

    IPC: H03M13/00 ,  G11B20/12 ,  G11B20/18 ,  G06F11/10

    Abstract: The invention relates to a method of correcting errors in encoded uncorrected data in a disk storage device, employing a multiple level error correction code for use with records of varying length, including initially formatting the data into blocks, each comprising subblocks, which, except for possibly the last, are of equal size, the number of subblocks in any record being determined by the length of that record. The method is characterised by the steps of statistically determining, as a function of subblock size, first level correction capability and the length of the longest record anticipated, a number representing the minimum number of subblocks which may be in error and correctable; transmitting the uncorrected data to a storage director; performing at least a portion of the first level of error correction at the storage device; and, after all uncorrected data has been received by the storage director, transmitting error information reflecting first level error pattern and location to the storage director for completion of the first level of correction and performance of subsequent levels of correction. The invention also relates to apparatus for performing a method of correcting errors as above.

    TRANSACTION EXECUTION SYSTEM
    8.
    发明专利
    TRANSACTION EXECUTION SYSTEM 未知

    公开(公告)号：AU521276B2

    公开(公告)日：1982-03-25

    申请号：AU4428679

    申请日：1979-02-15

    Applicant: IBM

    Inventor： ANDERSON ROBERT WHITCOMB ,  GEE MAY LEW ,  BROCK STEVEN FRANKLIN

    IPC: G07F7/08 ,  G06Q20/38 ,  G06Q20/40 ,  G07D1/00 ,  G07F7/10 ,  G06F3/08 ,  G06F15/30

    Abstract: This invention relates to a transaction execution system. An embodiment of the invention provides a plurality of transaction terminals (1) in communication with a host data processing system (11). The terminals each include a keyboard (3), a display, document handling subsystems, a hardware control subsystem, a communication subsystem and a programmable control subsystem supervising the other subsystems. A user initiates a transaction request by inserting a card, which may have been issued by any of a plurality of cooperating card issuers or banks, into a card reader (2) of the terminals. The issuer identification number (9) is read from the card, and used to search a table (8) of card format and encryption key data. If the corresponding format and key data is located in the table, the terminal requests entry of a preassigned personal ID number (7) through the keyboard. Verification data located on the card by format data from the table is encrypted (5) in response to the key data from the table for comparison (6) with the keyboard entered ID number. If the corresponding format and key data is not located in the table, the card data is sent to the host (11), which accesses a master table (10) with the issuer identification number, and communicates back to the terminal the corresponding format and key data located in the master table. Once the terminal has checked for correspondence between encrypted verification data and the ID number, in response to format and key data from its own table or communicated from the host, additional transaction data is obtained via the keyboard. Upon command from the host, the host supplied format and key data is purged by the terminal at completion of the transaction, or else retained for future reference.

    9.
    发明专利
    未知

    公开(公告)号：DE3850192T2

    公开(公告)日：1995-01-12

    申请号：DE3850192

    申请日：1988-08-23

    Applicant: IBM

    Inventor： ANDERSON ROBERT WHITCOMB ,  GEE RALPH LEONARD ,  INDELICATO JASPER ANTHONY ,  PATEL ARVIND MOTIBHAI

    IPC: H03M13/00 ,  G11B20/12 ,  G11B20/18 ,  G06F11/10

    Abstract: The invention relates to a method of correcting errors in encoded uncorrected data in a disk storage device, employing a multiple level error correction code for use with records of varying length, including initially formatting the data into blocks, each comprising subblocks, which, except for possibly the last, are of equal size, the number of subblocks in any record being determined by the length of that record. The method is characterised by the steps of statistically determining, as a function of subblock size, first level correction capability and the length of the longest record anticipated, a number representing the minimum number of subblocks which may be in error and correctable; transmitting the uncorrected data to a storage director; performing at least a portion of the first level of error correction at the storage device; and, after all uncorrected data has been received by the storage director, transmitting error information reflecting first level error pattern and location to the storage director for completion of the first level of correction and performance of subsequent levels of correction. The invention also relates to apparatus for performing a method of correcting errors as above.

Patent Agency Ranking