초록 ▼

A data transmission system includes a transmission medium which has a certain propagation delay time over its length. A number of data stations are successively coupled to the transmission medium for communicating with one another. Each of the data stations includes a transmitter for originating sig

A data transmission system includes a transmission medium which has a certain propagation delay time over its length. A number of data stations are successively coupled to the transmission medium for communicating with one another. Each of the data stations includes a transmitter for originating signals, each signal beginning with a carrier of a duration which is at least the propagation delay time of the transmission medium. Each data station also includes a receiver which receives other signals from other data stations and inhibits operation of the transmitter at the same data station when a carrier of another signal is received.

대표청구항 ▼

A data transmission system comprising a transmission medium of a predetermined overall length for propagating information along a desired path, said transmission medium having a certain propagation delay time corresponding to said overall length; and a number of data stations successively coupled to

A data transmission system comprising a transmission medium of a predetermined overall length for propagating information along a desired path, said transmission medium having a certain propagation delay time corresponding to said overall length; and a number of data stations successively coupled to said transmission medium over its length for communicating with one another, any given one of said data stations including: (a) transmitting means for transmitting signals into said transmission medium wherein each of said signals begins with a carrier of a duration of at least said certain propagation delay time and said carrier is followed by a data message which corresponds to data information; (b) means for supplying data information to said transmitting means to enable a signal including said carrier and said data message to originate from said given data station; and (c) receiving means coupled to said transmitting means for receiving other signals which originate from other ones of said data stations located in a given direction along said transmission medium relative to said given data station and for inhibiting said transmitting means from originating a signal from said given data station in response to reception of a carrier of any of said other signals, said receiving means being arranged to provide said other signals to said transmitting means for transmission to remaining ones of said data stations located in the opposite direction along said transmission medium relative to said given data station, so that said given data station can originate and complete a data message which can be validly received by other selected ones of said data stations after said carrier originates continuously over said certain propogation delay time from said given data station.