초록 ▼

Signals on an incoming highway of a time division switching system are written into an alternate one of first and second time switch memories and are sequentially read out of the other alternate one of the memories into the time slots of an outgoing highway of the system in accordance with a phase d

Signals on an incoming highway of a time division switching system are written into an alternate one of first and second time switch memories and are sequentially read out of the other alternate one of the memories into the time slots of an outgoing highway of the system in accordance with a phase difference between incoming and outgoing frames and a time slot interchanging relationship between signals on the incoming highway and corresponding signals on the outgoing highway, so that the beginning of the outgoing frame coincides with one of the time slots of the incoming frame which is displaced from the beginning of the incoming frame by an amount equal to the detected phase difference. Alternatively, if the time slot of at least one signal of a multi-channel call on the incoming highway is later than the time slot of a corresponding signal on the outgoing highway, all signals of that multi-channel call are sequentially read out of the memories into a given outgoing highway so that they correspond to those on an incoming frame which is one frame prior to the one being written at the beginning of the given outgoing frame. If the time slots of all signals of a multi-channel call on the incoming highway are earlier than those of respectively corresponding signals on the outgoing highway, all signals of that multi-channel call are sequentially read out of the memories into an outgoing frame so that they correspond to those on an incoming frame which is being written at the beginning of the outgoing frame.

대표청구항 ▼

A time division switching system for multi-channel calls, comprising: an incoming highway for supporting an incoming frame having time slots in which signals of said multi-channel calls are carried; an outgoing highway for supporting an outgoing frame having time slots in which corresponding signals

A time division switching system for multi-channel calls, comprising: an incoming highway for supporting an incoming frame having time slots in which signals of said multi-channel calls are carried; an outgoing highway for supporting an outgoing frame having time slots in which corresponding signals of said multi-channels calls are carried; first and second time switch memories each having memory locations corresponding to the time slots of each of said incoming and outgoing frames; phase detector means for detecting a phase difference between said incoming and outgoing frames; and control means for writing signals on said incoming highway into one of said first and second time switch memories and reading signals from the other time switch memory into specified time slots of said outgoing highway in accordance with said phase difference and control data specifying addresses of said first and second time switch memories so that the beginning of said outgoing frame coincides with the one of said time slots of said incoming frame which is displaced from the beginning of said incoming frame by an amount equal to said detected phase difference.