Data retention apparatus

Details Data retention apparatus Data retention apparatus

1975-11-06

1977-09-20

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92DP, 235 92MP, 235 92R, 307238, G06M 314, H03K 2134

Patent

active

040499510

ABSTRACT:
Apparatus for retaining the data held in a directional counter in the event of the voltage level supplied to the counter falling below a predetermined level comprises a directional counter means for comparing the level of voltage supplied to the directional counter with a predetermined voltage level, data storing means responsive to the comparator means for storing the output signal of the directional counter when the voltage falls below the predetermined voltage and for loading the stored output signal into the directional counter when the voltage level subsequently rises above the predetermined level.

REFERENCES:
patent: 2982870 (1961-05-01), Hilbiber
patent: 3286239 (1966-11-01), Thompson et al.
patent: 3321747 (1967-05-01), Adamson
patent: 3350652 (1967-10-01), Cottrez
patent: 3597629 (1971-08-01), Bartlett
patent: 3843873 (1974-10-01), Beville

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