Gray code counter

Details Gray code counter Gray code counter

1984-10-31

1986-10-21

Roskoski, Bernard

Communications: electrical

Audible indication

Percussion-type sound producer

377 44, H03M 100

Patent

active

046188495

ABSTRACT:
A gray code counter is produced from a binary code counter by connecting each output of the binary counter to a "toggle" flip-flop. Each toggle flip-flop has a toggle input connected to its corresponding binary output. The output of each toggle flip-flop changes state (i.e. "toggles") only when its corresponding binary code bit makes a transition from a first level to a second level (i.e., it does not change state when its corresponding binary code bit makes a transition from the second level to the first level).

REFERENCES:
patent: 2982953 (1961-05-01), Cadden et al.
patent: 3138794 (1964-06-01), Blum
patent: 3210756 (1965-10-01), Flood
patent: 3393298 (1968-07-01), Olson
patent: 3588461 (1971-06-01), Halsall

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