METHOD AND APPARATUS FOR TRANSMISSION AND RECEPTION IN TIME DIVISION MULTIPLEX
PURPOSE:To improve the utilizing efficiency of a transmission line by applying assignment of a transmission line time slot in response to traffic characteristics of telephone signal, a data signal and a picture signal, applying coding to a telephone channel to multiplex the transmission signal only....
Gespeichert in:
1. Verfasser: | |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | PURPOSE:To improve the utilizing efficiency of a transmission line by applying assignment of a transmission line time slot in response to traffic characteristics of telephone signal, a data signal and a picture signal, applying coding to a telephone channel to multiplex the transmission signal only. CONSTITUTION:A telephone channel module circuit 105 inputting a telephone signal via a signal line 101-1 encodes the telephone signal. The result of coding is outputted to the 1st multiplex circuit 125 via a signal line 106 and a closing signal closing the telephone line is outputted via a signal line 101-2 according to the assignment signal outputted from an assignment memory 150 via a signal line 151. A picture signal is inputted to a picture channel module circuit 120 via a signal line 104-1 and outputted to the 3rd multiplex circuit 160 via a signal line 121. Further, the presence of a picture signal and speed information are outputted to the 2nd multiplex circuit 130. Moreover, a signal controlling the coding speed is outputted to an external picture encoder via a signal line 104-2 according to the assignment signal via the signal line 151. |
---|