Pulse or digital communications – Repeaters – Testing
Patent
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.
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patent: 4920530 (1990-04-01), Wonda et al.
patent: 4947362 (1990-08-01), Bui
patent: 5068873 (1991-11-01), Murakami
Hara Hirotaka
Kokubo Masaru
Suzuki Toshiro
Chin Stephen
Hitachi , Ltd.
Tse Young
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