Abstract: The invention provides a subscriber terminating equipment wherein a subscriber accommodated in a subscriber terminating package with which a fault occurs is switched to a relief package by constructing the same such that a common section selects a pair of subscriber terminating packages including a first subscriber terminating package and a second subscriber terminating package and allocates, if the first subscriber terminating package fails, the second subscriber terminating package as a bypass package for performing electric connection between a subscriber terminal and the relief package. The subscriber terminating equipment thus allows automatic switching of the relief package without using a switching package for exclusive use and allows replacement of the fault package without interrupting communication of a subscriber accommodated in the fault package.

Abstract: A DSL relay method is provided, in which the method includes the steps of: converting a DSL signal output from an intra-office conversion part into a first asynchronous transfer mode signal by using an intra-terminal conversion function which is the same as that of an intra-terminal conversion part; converting a DSL signal output from the intra-terminal conversion part into a second asynchronous transfer mode signal by using an intra-office conversion function which is the same as that of the intra-office conversion part; and converting interfaces between the intra-terminal conversion function and. the intra-office conversion function.

Abstract: A device for transmitting a pulse signal via a metallic line to a receiver end at which equalization is applied to the received pulse signal. The device includes a waveform adjustment unit which adjusts a pulse width in accordance with differences between characteristics of the metallic line and characteristics that are assumed for the equalization at the receiver end. The device further includes a transmission driver unit which transmits a pulse having the adjusted pulse width to the metallic line.

Abstract: A device for transmitting a pulse signal via a metallic line to a receiver end at which equalization is applied to the received pulse signal. The device includes a waveform adjustment unit which adjusts a pulse width in accordance with differences between characteristics of the metallic line and characteristics that are assumed for the equalization at the receiver end. The device further includes a transmission driver unit which transmits a pulse having the adjusted pulse width to the metallic line.

Abstract: A long-distance transmission system includes a network terminal that accommodates terminal equipment, and a line terminal connected to the network terminal via a two-wire metallic subscriber line. The network terminal includes an amplifier, which amplifies a transmission level of a transmission signal to be transmitted to the line terminal via the two-wire metallic subscriber line on the basis of a characteristic of the two-wire transmission line.

Abstract: A long-distance transmission system includes a network terminal that accommodates terminal equipment, and a line terminal connected to the network terminal via a two-wire metallic subscriber line. The network terminal includes an amplifier, which amplifies a transmission level of a transmission signal to be transmitted to the line terminal via the two-wire metallic subscriber line on the basis of a characteristic of the two-wire transmission line.

Abstract: A network termination device which will operate correctly even if its connection to a central office has reverse polarity. A network termination device at customer premises is connected to a line termination device located at a central office via a two-wire subscriber loop. If this connection was made with reverse polarity, the supply voltage provided by the line termination device would oscillate at specific intervals, alternating between normal polarity and reverse polarity. In such a case, a polarity switch controller in the network termination device directs its local polarity reversing switch to alternate the polarity at predetermined intervals longer than the cycle time of the above oscillation. This produces such a situation where a reverse supply voltage is present and the polarity reversing switch is in reverse mode, resulting in correct polarity as a whole.

Abstract: An undershoot eliminating circuit is provided between a pulse transformer of a pulse transmitter coupled to a transmission line and a pulse transformer driving circuit for driving the pulse transformer. The pulse transformer driving circuit has an impedance high enough to cause the pulse transmitter to be substantially isolated from the transmission line. The undershoot eliminating circuit includes a capacitor, and a switching unit. The switching unit is connected to the capacitor, and has the function of selectively connecting the capacitor to the pulse transformer driving circuit and the pulse transformer in parallel on the basis of a voltage based on a pulse wave generated by the pulse transformer driving circuit and applied across the switching unit.

Abstract: A filling machine provided with a filling amount weighing apparatus which is used in a step of preparing medical supplies and so on, and continuously fills automatically powder, liquid or the like of a very small amount into a container such as vial, ampul or the like so as to weigh the filling amount, on the employment of an electronic balance to effect a weighing operation of high speed and precision so as to improve the filling amount accuracy through the reduction in dispersion in the filling amount.

Abstract: The present invention is a defect inspection method and apparatus for electrically inspecting for the presence of defects in sealed containers of insulating material containing electrically conductive electrolyte or nonelectrolyte fluids, in which the container to be inspected is charged by a high DC voltage to detect the charging current developed and the current neutralizing the charging current for detecting the presence of faults in the container through the magnitudes and the shapes of these currents which are compared with reference values.

Abstract: A mold assembly for use in a packaging machine for making a blistered package, which forms a plurality of blisters in a web of thermoplastic resin film forming a part of the blistered package. The mold assembly comprises a preforming structural body formed with a plurality of preforming molds and a finishing structural body formed with the corresponding number of finishing molds arranged in the same pattern as the preforming molds. The thermoplastic resin web is first subjected to a preforming process with the preforming structural body and then to a final forming process with the finishing structural body thereby to avoid excessive and quick reduction of the wall thickness which may otherwise be observable in any of the finally formed blisters. A method for this purpose is also disclosed.