Electrical pulse counters – pulse dividers – or shift registers: c – Systems – Including reversible counter
Patent
1986-04-11
1987-12-15
Heyman, John S.
Electrical pulse counters, pulse dividers, or shift registers: c
Systems
Including reversible counter
377 39, 377 52, 377 51, H03K 2366, H03K 2140
Patent
active
047138327
ABSTRACT:
There is disclosed herein an up/down counter with a programmable terminal count. The up/down counter has a two level input structure such that new terminal counts may be written into the up/down counter asynchronously without disturbing operations of the up/down counter. Although the invention is described in the bidirectional sense, certain of the features are also applicable to unidirectional counters.
REFERENCES:
patent: 3683345 (1972-08-01), Faulkes et al.
patent: 4503549 (1985-03-01), Slabinski
patent: 4509044 (1985-04-01), Yachida
Ampex Corporation
Fish Ronald C.
Heyman John S.
Lange Richard P.
Perkins Bradley A.
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