Pulse or digital communications – Equalizers – Automatic
Patent
1991-07-22
1996-01-02
Chin, Stephen
Pulse or digital communications
Equalizers
Automatic
375232, 333 28R, 3647242, H03H 730
Patent
active
054815649
ABSTRACT:
A digital adaptive equalizer equalizes received signals through digital filtering operations by changing filtering coefficients. It comprises a coefficient calculating unit for calculating the filtering coefficients by using one kind of parameters, such as distance, as an input to a function corresponding to the filtering coefficients and a filtering operation executing unit for executing digital filtering operations based on the filtering coefficients. A variable lag filter for adjusting the phase delay of received received signals is provided. A coefficient converting unit calculates a part or all of tap coefficients of the filter using at least one piece of timing control information.
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Awata Yutaka
Kakuishi Mitsuo
Manabe Atsushi
Miyoshi Seiji
Murakami Norio
Chin Stephen
Fujitsu Limited
Ghebretinsae T.
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