H - Electricity – 04 – L
Patent
H - Electricity
04
L
325/1, 340/72
H04L 25/49 (2006.01)
Patent
CA 1186763
TITLE OF THE INVENTION Consecutive Identical Digit Suppression System in a Digital Communication System ABSTRACT OF THE DISCLOSURE An encoder for suppression of a consecutive identical digit in a digital transmission system facilitates the reproduc- tion of a clock signal for regenerating reception data, and keeping the average signal level constant. According to the present invention, a single bit (x) is inserted for every pre- determined number (m) of input digits, and said insertion bit is a complement of the sign of the previous k bits where k is an integer satisfying 1?k?m. Preferably, the value k is 1. The present invention is useful for digital communications higher than 100 Mbits/second, in particular, in optical communications.
401079
Kato Masami
Yoshikai Noriaki
Borden Ladner Gervais Llp
Nippon Telegraph & Telephone Public Corporation
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