Incrementing and decrementing counter circuits

Details Incrementing and decrementing counter circuits Incrementing and decrementing counter circuits

1994-09-19

1995-11-14

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Counting or dividing in incremental steps

327 75, 327126, 377106, H03K 2500

Patent

active

054673763

ABSTRACT:
A counter circuit converts a full count to a zero count and a zero count to a full count. An incrementing counter circuit according to the present invention has a plurality of threshold circuits with stepwise thresholds. An output of the highest threshold circuit is used as a cut off signal for other threshold circuits. A decrementing counter circuit according to the present invention has a plurality of threshold circuits from the lowest threshold to the highest thresholds. An output of the lowest threshold circuit is used as a closing signal for other threshold circuits.

REFERENCES:
patent: 2677762 (1954-05-01), Cohen et al.
patent: 2817771 (1957-12-01), Barnothy
patent: 3041469 (1962-06-01), Ross
patent: 4542370 (1985-09-01), Yamada et al.
Souda, Yasushi, "91 The CMOS Device Manual", CQ Shuppansha, 1991, pp. 113-117 and 138-139.

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