Semiconductor integrated circuit containing an automatic equaliz

Details Semiconductor integrated circuit containing an automatic equaliz Semiconductor integrated circuit containing an automatic equaliz

1991-05-09

1994-07-05

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375 12, 3647242, 36472416, H03H 1500

Patent

active

053274598

ABSTRACT:
An automatic equalizer is capable of updating tap coefficients and constituted to vary the frequency at which to update the tap coefficients depending on the magnitude thereof. There are provided a plurality of ways to vary the frequency at which to update the tap coefficients. One way is to divide the taps into two groups, one group having its tap coefficients updated at a relatively high frequency, the other group having its tap coefficients updated at a relatively low frequency. Another way is to vary the frequency at which to update the tap frequency based on the result of suitably judging the magnitude thereof.

REFERENCES:
patent: 4438521 (1984-03-01), Mattei
patent: 4694969 (1987-09-01), Sellenberger
patent: 4805215 (1989-02-01), Miller
patent: 4862484 (1989-08-01), Roberts
patent: 4920530 (1990-04-01), Wonda et al.
patent: 4947362 (1990-08-01), Bui
patent: 5068873 (1991-11-01), Murakami

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