Training method for non-nyquist transmission system and training

Details Training method for non-nyquist transmission system and training Training method for non-nyquist transmission system and training

1995-10-04

2000-02-01

Pham, Chi H.

Pulse or digital communications

Equalizers

Automatic

375280, 375368, H03H 730

Patent

active

060211601

ABSTRACT:
The invention provides a training method for a non-Nyquist transmission system and a training data transmission apparatus for a non-Nyquist transmission system by which initialization processing of a reception section can be performed with certainty even where a non-Nyquist transmission system is employed. Prior to transmission of data in accordance with a non-Nyquist transmission system, training data having a first repeat signal portion formed from a group of signals including components of a lower rate than a Nyquist interval, a first multi-value random signal portion formed from multi-value random signals, a second repeat signal portion formed from a group of signals including components of a lower rate than the Nyquist interval, a third repeat signal portion formed from a group of signals which include components lower in rate than the Nyquist interval and wherein a first signal point is different by 180 degrees in phase from a first signal which forms the second repeat signal portion, and a second multi-value random signal portion formed from multi-value random signals, are transmitted from a transmission section. The training data are received by a reception section, and initialization processing of the reception section is performed using the received training data.

REFERENCES:
patent: 4868850 (1989-09-01), Kaku et al.
patent: 5199047 (1993-03-01), Koch
patent: 5260972 (1993-11-01), Wang
patent: 5454007 (1995-09-01), Dutta
patent: 5537437 (1996-07-01), Kaku et al.
patent: 5598434 (1997-01-01), Kaku et al.

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