H - Electricity – 04 – L
Patent
H - Electricity
04
L
354/106
H04L 25/49 (2006.01)
Patent
CA 1192313
- 1 - Abstract: A two-level alternate mark inversion signal trans- mission system converts binary pulses of "1" and "0" into a pulse signal in which one has its polarity inverted at a period T and the other at a period ?. The converted signal is then transmitted. In order to facilitate an automatic gain control and the extraction of a timing signal in the receiver, even when the zero binary pulses have successively arisen, on a transmitting side, the alternate mark inversion signal is converted in the transmitter into a specified code (zero substitution), while in the receiver, the received signal is subjected to duobinary shaping whereby the zero substitution part of the signal is detected for removal by utilizing the rules of the zero substitution and the alternate mark inversion signal.
421247
Nagano Katsuyuki
Takahashi Yasushi
Takasaki Yoshitaka
Yamada Mitsuo
Yoshine Hiroki
Hitachi Ltd.
Kirby Eades Gale Baker
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