Platelet count correction circuit

Details Platelet count correction circuit Platelet count correction circuit

1974-07-10

1976-03-16

Shaw, Gareth D.

Registers

Platform operated

Platform actuated traffic counters

235 92PL, 235 92DN, 235 92R, 324 71CP, H03K 2134

Patent

active

039447910

ABSTRACT:
Circuitry for the correction of error occasioned during the counting of platelets in a hematology system. A coincidence corrected platelet count is provided as an input to a rate counter which provides a plurality of output signals representative of different percentages of the input count. A read-only memory is employed to store data representing correction factors for different hematocrit values. Gating circuitry is enabled by output signals from the read-only memory representing a selected hematocrit correction factor, the enabled gate circuits providing pulses representative of selected percentages of the input count and which are combined to provide an output pulse train which is the corrected platelet count.

REFERENCES:
patent: 3764781 (1973-10-01), Kreithen et al.
patent: 3790910 (1974-02-01), McCormack
patent: 3827045 (1974-07-01), Markus
patent: 3864551 (1975-02-01), Oefinger

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