Distortion compensation technique

Details Distortion compensation technique Distortion compensation technique

1995-09-25

1996-07-30

Bocure, Tesfaldet

Pulse or digital communications

Systems using alternating or pulsating current

Antinoise or distortion

375261, 375296, 375346, H04B 1500, H04B 110, H04L 512, H04L 2549

Patent

active

055419640

ABSTRACT:
Symbols which are representative of customer data are transmitted in bursts. In the idle mode, i.e., the time intervals between bursts, symbol sequences which are a priori known to the receiver are transmitted. Such idle mode symbols maintain adaptive apparatus, such as NEXT cancellers and equalizers, in their properly converged state. To reduce crosstalk and spectral emissions, the idle mode symbols are selected to be the innermost symbols in the signal constellation encompassing the ensemble of all symbols.

REFERENCES:
patent: 5022053 (1991-06-01), Chung et al.
patent: 5105442 (1992-04-01), Wei
patent: 5134633 (1992-07-01), Werner
patent: 5214656 (1993-05-01), Chung et al.
patent: 5331670 (1994-07-01), Sorbara et al.
patent: 5444712 (1995-08-01), Betts et al.

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