Title: Low cutoff digital pulse filter especially useful in electronic energy consumption meters

Abstract: A digital electrical pulse filter which provides output electrical pulses directly corresponding to input electrical pulses when the input pulses have a repetition rate greater than a predetermined repetition rate and which provides no output pulses when the input pulses have a repetition rate less than the predetermined repetition rate. An electronic energy consumption meter employing such a low cutoff digital pulse filter is also disclosed as well as a specific circuit for the filter employing complimentary pairs of C-MOS active elements in an arrangement which facilitates construction of the entire filtering circuit according to C-MOS integrated circuit construction techniques and which enhances the overall operation of such an integrated circuit filter.

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Inventors: Milkovic, Miran (Scotia, NY, US)

Application Number: 505799
Filing Date: 1974-09-13
Publication_date: 1976-02-17
Assignee: General Electric Company (Schenectady, NY)
Primary Class(es): 324/142 327/44
Other Classes:
US Patent Ref:

3227952	Jan, 1966	Proesbster et al.	328/141.
3413490	Nov, 1968	Breunig et al.	307/233.
3718860	Feb, 1973	Kwast et al.	324/142.
3786358	Jan, 1974	Fiorino	307/233.
3794917	Feb, 1974	Martin et al.	324/142.
3875509	Apr, 1975	Milkovic	324/142.

Other Refs:
Primary Examiner: Chatmon, Jr., Saxfield
Assistant Examiner:
Attorney: Myles; Vale P.