초록 ▼

A node apparatus is used in a communication network having a multi-conjunction architecture. The communication network has a plurality of transmission paths each coupling one node apparatus to another node apparatus or a terminal device. The node apparatus generally comprises an input port, an outpu

A node apparatus is used in a communication network having a multi-conjunction architecture. The communication network has a plurality of transmission paths each coupling one node apparatus to another node apparatus or a terminal device. The node apparatus generally comprises an input port, an output port, and a control part for controlling the coupling of input channels of the input port to output channels of the output port. The control part couples a first receiving input channel which receives a signal first out of the input channels to all of the output channels excluding an output channel having a channel number corresponding to that of the first receiving input channel, so as to broadcast the signal.

대표청구항 ▼

A node apparatus for a communication network having a multi-junction architecture, said communication network having a plurality of transmission paths each coupling one node apparatus to another node apparatus or a terminal device, said node apparatus comprising: an input port comprising a plurality

A node apparatus for a communication network having a multi-junction architecture, said communication network having a plurality of transmission paths each coupling one node apparatus to another node apparatus or a terminal device, said node apparatus comprising: an input port comprising a plurality of input channels connected to the transmission paths; an output port comprising a plurality of output channels connected to the transmission paths; a switching gate part for coupling said input and output channels of said input and output ports; and control means for controlling said switching gate part to selectively couple said input and output channels, said control means comprising first input detecting means coupled to said input port for detecting a first receiving input channel which receives a signal first out of said input channels, first time-out means for timing a second predetermined time after a first predetermined time elapses from the detection of said first receiving input channel in said first input detecting means, and input signal detecting means coupled to said first time-out means for detecting whether or not said input channels receive a signal from the transmission paths, said control means controlling said switching gate part to maintain said input and output channels coupled to each other in an initial state when said input signal detecting means detects that no signal is received at said input channels so that each input channel is coupled to all of said output channels other than an output channel having a corresponding channel number, said control means controlling said switching gate part responsive to the detection of said first receiving input channel in said first input detecting means so that all of said input channels other than said first receiving input channel are disconnected from said output channels, thereby transferring the signal received by said first receiving input channel to all of said output channels other than an output channel having a channel number corresponding to that of said first receiving input channel, said input signal detecting means supervising whether or not a signal is received by arbitrary input channels having channel numbers corresponding to those of the output channels which transfer the signal received by said first receiving input channel and detecting a specific one of said arbitrary input channels which receives no signal during said second predetermined time, said control means controlling said switching gate part responsive to the detection of said specific input channel in said input signal detecting means so that said specific input channel is coupled to said output channels including the output having the channel number corresponding to that of said first receiving input channel.