Overlapped signal transition counter

Details Overlapped signal transition counter Overlapped signal transition counter

1974-12-17

1976-01-06

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307261, 328 41, 328157, 318603, H03K 2106

Patent

active

039315312

ABSTRACT:
A counter circuit counts all transitions of two or more overlapped out of phase bi-level signals under control of a start signal by combining the input signals via an exclusive OR circuit into a single signal having the transitions of all input signals. The levels of this single signal are applied to a polarity hold circuit and the level present upon the occurrence of an asynchronously occurring start signal is stored therein. The polarity hold circuit provides a pair of gating signals to a logical AND/OR network having an output containing both the positive and negative transitions of the single signal. The detected transitions are fed into a binary counter whose first stage consists of the AND/OR network.

REFERENCES:
patent: 3466517 (1969-09-01), Leenhouts
patent: 3671876 (1972-06-01), Oshiro
patent: 3697779 (1972-10-01), Gee

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