Filter arrangement with a linear phase characteristic, and...

Details Filter arrangement with a linear phase characteristic, and... Filter arrangement with a linear phase characteristic, and...

2005-11-22

2005-11-22

Le, Amanda T. (Department: 2634)

Pulse or digital communications

Equalizers

C375S350000, C375S231000

Reexamination Certificate

active

06968000

ABSTRACT:
A filter arrangement with a linear phase characteristic having first filter cascade coupled to second filter. The first filter is an analog or digital filter designed so that its amplitude characteristic meets a predefined amplitude specification. The second filter is implemented as the anti-causal version of a fictive digital all-pass filter that is designed so that its phase characteristic, up to a linear function of frequency, equals the phase characteristic of the first filter.

REFERENCES:
patent: 5517527 (1996-05-01), Yu
patent: 5533063 (1996-07-01), Mitra et al.
patent: 5963273 (1999-10-01), Boie et al.
Xiaoning Nie et al.: “On the Design and Realization of a Class of Tunable 2-D Digital Filters” Proceedings of the International Symposium on Circuits and Systems, US, New York, IEEE, vol. SYMP. 24, 1991, pp. 452-455, XP000384806.

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