METHOD FOR RE-SYNCHRONIZING B-CHANNEL GROUP OF ISDN

    公开(公告)号:JP2000324089A

    公开(公告)日:2000-11-24

    申请号:JP2000105439

    申请日:2000-04-06

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide extension of the BONDING mode 1 by providing a way for a simple and reliable synchronization procedure so as to reduce a time and to relieve a network load required for re-synchronization. SOLUTION: The method is provided, where the BONDING mode 1 is used to re-synchronize a group of B-channels of an ISDN so as to attain re- synchronization without the need for interrupting the group of the B channels. Thus, the reliability of the combined channels is enhanced while using a simpler device in comparison with that required for solutions by the BONDING modes 2, 3 and the time and the network load required for re-synchronization can drastically be reduced.

    5.
    发明专利
    未知

    公开(公告)号:AT467132T

    公开(公告)日:2010-05-15

    申请号:AT07847223

    申请日:2007-11-20

    Applicant: IBM

    Abstract: A method for determining current return path integrity in an electric device with a plurality of signal lines and supply lines. A library with at least one reference signal pattern of a near end crosstalk signal on a defined signal line arising from an input signal on another defined signal line is provided, a predetermined signal to a selected signal line of the electric device is applied, the near end crosstalk signal on at least one further signal line of the electric device is detected, said near end crosstalk signal is compared with the corresponding reference signal pattern from the library, and if there is a deviation between the near end crosstalk signal and the corresponding reference signal pattern, an information that there is any defect in the electric device is displayed.

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