Methods and apparatuses for filtering pulses

Details Methods and apparatuses for filtering pulses Methods and apparatuses for filtering pulses

2006-12-26

2006-12-26

Wachsman, Hal D. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

C702S189000, C702S193000, C324S076280

Reexamination Certificate

active

07155372

ABSTRACT:
In one embodiment, a method that includes creating a filter structure using a parameter of a periodic pulse train, the filter structure having a plurality of time slots, each time slot being associated with a memory value; receiving a pulse at a time; incrementing the memory value associated with the time slot corresponding to the time the pulse was received; filtering the pulse if the memory value exceeds a threshold; and transmitting the pulse to a processor if the memory value does not exceed the threshold. In another embodiment, an apparatus that includes an input filter; a pulse detection circuit coupled to the input filter; a periodic pulse filter coupled to the pulse detection circuit; and a pulse queuing and transmission circuit coupled to the periodic pulse filter.

REFERENCES:
patent: 5142170 (1992-08-01), Tkacik
patent: 5194768 (1993-03-01), Lozano
patent: 5712807 (1998-01-01), Bangham
patent: 6598007 (2003-07-01), Moizio et al.

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