H - Electricity – 04 – L
Patent
H - Electricity
04
L
354/106, 354/235
H04L 25/40 (2006.01) H04J 3/07 (2006.01) H04J 7/00 (2006.01) H04L 25/05 (2006.01)
Patent
CA 1123963
DIGITAL SIGNAL TRANSMISSION SYSTEM Abstract of the Disclosure In a digital signal transmission system input digital signals having an arbitrary bit rate are converted into digital signals of a bit rate higher than that of the input digital signals and then transmitted through a signal format converter. In order to realize a signal format conversion in real time, the signal format converter is constructed of a buffer circuit of small capacity. A circuit writes the input signals into the buffer circuit at the bit rate of said input signals and reads out the written signals at the bit rate of a transmission line. Another circuit distinguishes the signals to be read as a mark, space and empty, and an encoding circuit converts the mark, space and empty into discernible pulse signals, the unit being a time slot of the transmission line or integral times the time slot, depending on the levels of pulses or the numbers of successive pulses (run length).
345980
Takasaki Yoshitaka
Yoshine Hiroki
Hitachi Ltd.
Kirby Eades Gale Baker
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