Data converter with minimum phase FIR filter and method for calc

Details Data converter with minimum phase FIR filter and method for calc Data converter with minimum phase FIR filter and method for calc

1995-06-07

1996-04-30

Young, Brian K.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

375222, H03M 100

Patent

active

055128980

ABSTRACT:
In accordance with an embodiment of the invention, a data converter is disclosed employing at least one minimum phase FIR filter. The data converter includes an analog-to-digital converter for converting an incoming analog signal into a plurality of digital signal samples, followed by a minimum phase FIR filter to filter the digital signal samples. Alternatively, the data converter includes a digital-to-analog converter preceded by a minimum phase FIR filter to filter a plurality of digital signal samples that are converted into an analog signal by the digital-to-analog converter. The data converter may include both analog-to-digital and digital-to-analog conversion. In a preferred embodiment, the minimum phase FIR filter is an optimum minimum phase FIR filter. A method for precisely calculating the filter coefficients of an optimum minimum phase FIR filter is also disclosed.

REFERENCES:
patent: 4691233 (1987-09-01), Acampora

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