Pulse or digital communications – Repeaters – Testing
Patent
1989-12-21
1992-09-29
Chin, Stephen
Pulse or digital communications
Repeaters
Testing
333 18, 3647242, H03H 730
Patent
active
051519240
ABSTRACT:
An automatic equalization apparatus useful for supplying an output signal of a transversal filter simultaneously to two juxtaposed comparators, one of the two comparators performing signal identification, the other of the two comparators detecting an equalization error with the reference level changed, and extracting data from resultant two kinds of data trains by taking at least (N-1)/2+1 bits as the unit, N being the number of taps of the transversal filter, performing correlation computation, and setting tap coefficients of the transversal filter on the basis of the resultant accumulated value.
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Doi Nobukazu
Ide Hiroshi
Inagaki Yasuo
Izumita Morishi
Mita Seiichi
Chin Stephen
Hitachi , Ltd.
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