Multiplex communications – Wide area network – Packet switching
Patent
1984-08-07
1986-09-30
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
1791702, 1791708, 375 12, H04J 1500, H04L 514, H04B 320, H04M 908
Patent
active
046150250
ABSTRACT:
A data transmission system using a transmission code in which one data state corresponds to a zero transmission level, such as the alternate mark inversion (AMI) code, includes at each terminal adaptive signal processing circuits such as an echo canceller (402) and/or an adaptive equalizer (409). Each terminal includes a decision circuit (408) an output of which controls a switch (410) which is operative to allow updating of the adaption of the echo canceller (402) and adaptive equalizer (409) only when a data state corresponding to a zero transmission level is detected.
REFERENCES:
patent: 4057696 (1977-11-01), Gitlin et al.
patent: 4072830 (1978-02-01), Gitlin et al.
patent: 4362909 (1982-12-01), Snijders et al.
patent: 4375692 (1983-03-01), Shensa et al.
patent: 4425483 (1984-01-01), Lee et al.
patent: 4484322 (1984-11-01), Fossati et al.
patent: 4531220 (1985-07-01), Brie et al.
Briody Thomas A.
Chin Wellinton
Eason Leroy
Olms Douglas W.
Streeter William J.
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