Digital anti-aliasing filter system

Details Digital anti-aliasing filter system Digital anti-aliasing filter system

1992-06-02

1994-06-21

Malzahn, David H.

Boots, shoes, and leggings

36472416, G06F 1531

Patent

active

053233395

ABSTRACT:
A digital preprocessor anti-aliasing filter system for digitally processing input data from a sensor and feeding this processed input data to a primary processor. An analog-to-digital converter is provided for sampling analog input data and converting this input data to digital signals. At least one data processing filter module is provided for receiving the digital signals and processing these signals to filter out selected undesirable frequencies and odd multiples of these frequencies. The filtered output from the filter module is at a sample rate which is substantially an integer multiple of the primary processor sample rate. Therefore, extreme attenuation is provided at these selected undesirable frequencies.

REFERENCES:
patent: 4488251 (1984-12-01), Wischermann
patent: 4621217 (1986-11-01), Saxe et al.
patent: 4872127 (1989-10-01), Nolan

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