Electrical pulse counters – pulse dividers – or shift registers: c – Applications – Including memory
Patent
1986-10-01
1988-07-12
Heyman, John S.
Electrical pulse counters, pulse dividers, or shift registers: c
Applications
Including memory
377 241, 377 28, 377 33, H03K 2140, G11C 2100
Patent
active
047575220
ABSTRACT:
In a counting circuit having non-volatile electrically erasable memory elements and a plurality of similar counters each representing one place of the count, respective memory elements of suitable capacity are associated with the counters. Low value counters can be connected cyclically to each other via their counting inputs and transfer outputs. Their association with the other places of a count is changed as a function of the count of the highest-value place. In this way, the result is obtained, without additional expense for memory, that the individual memory elements are erased equally frequently during the life of the counting circuit.
REFERENCES:
patent: 4512029 (1985-04-01), Brice
patent: 4663770 (1987-05-01), Murray et al.
Farber Martin A.
Heyman John S.
VDO Adolf Schindling AG
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