Bidirectional one-half rate counter

Details Bidirectional one-half rate counter Bidirectional one-half rate counter

1982-09-20

1985-07-30

Anagnos, Larry N.

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

Systems

Including reversible counter

377 31, 377 47, 377 85, H03K 2326, H03K 2132, H03K 2136, G06M 127

Patent

active

045326436

ABSTRACT:
A bidirectional counting circuit for use with a transducer producing two pulses per engineering unit includes an UP/DOWN counter which receives separate UP and DOWN input pulses from the transducer through respective AND gates. A synchronizing flip-flop, which switches states in response to either an UP or DOWN pulse, alternately enables the AND gates and effectively divides the input pulses by two. The state of the flip-flop is used to control a display digit to add the suffix "5" or "0" to the displayed counter content in order to display one-half engineering unit resolution. The circuit includes automatic and manual zeroing capability and a direction indicator.

REFERENCES:
patent: 3956616 (1976-05-01), Knollenberg
patent: 3986003 (1976-10-01), Pruessner
patent: 4021646 (1977-05-01), Meier
patent: 4130863 (1978-12-01), Schweitzer et al.
patent: 4239957 (1980-12-01), Satoh et al.
patent: 4461015 (1984-07-01), Kulhavy

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