Twisted ring counter with recoverable disallowed states

Details Twisted ring counter with recoverable disallowed states Twisted ring counter with recoverable disallowed states

1985-04-08

1987-02-24

Heyman, John S.

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

Pulse counting or dividing chains

Using bistable regenerative trigger circuits

377107, G11C 1900

Patent

active

046463321

ABSTRACT:
A twisted ring counter has a NOR gate with inputs from outputs of the last two stages thereof to detect and be activated by a combination of outputs which is found in all modes of operation of the counter. When activated by the combination, the gate provides an output to reset the counter to an all-ZEROs condition.

REFERENCES:
patent: 3818354 (1974-06-01), Tomisawa et al.
patent: 4406014 (1983-09-01), Doron
IBM Technical Disclosure Bulletin, "Reversible Counter", by D. T. Comer, vol. 7, No. 10, Mar. 1965.
"Multimoding and its Suppression in Twisted Ring Counters," The Bell System Technical Journal, Nov. 1968, W. Bleickardt, pp. 2029-2050.

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