Method and apparatus for a programmable filter

Details Method and apparatus for a programmable filter Method and apparatus for a programmable filter

2007-07-24

2007-07-24

Tran, Khanh (Department: 2611)

Pulse or digital communications

Equalizers

C375S350000

Reexamination Certificate

active

09798727

ABSTRACT:
A system includes a sampling circuit, an analog filter, an analog input, a modulator, and a modulating source. The modulating source includes an output that generates an impulse response encoded as a sigma-delta sequence. The output of the modulating source is coupled to the modulator, which is coupled to the analog input. The analog filter is coupled to the modulator and the sampling circuit. When the system is configured as a filter, an analog signal is modulated with the sigma-delta sequence. The modulated signal is filtered and then sampled.

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