Magnetic signal detector

Details Magnetic signal detector Magnetic signal detector

1978-10-05

1980-08-19

Kilgore, Robert M.

Registers

Coded record sensors

Particular sensor structure

235493, 360 53, G06K 708, G06K 1906, G11B 509

Patent

active

042186129

ABSTRACT:
A circuit is disclosed for monitoring the output voltage of a magnetic pickup and for producing output signals representing the valid detection of bars of magnetized ink moved past the pickup. The circuit is capable of detecting and providing correct output data from input signals ranging from relatively weak signals of low amplitude to relatively strong signals which are of high amplitude and include overshoot pulses of substantial amplitude. The circuit is disclosed in association with a system for sorting envelopes containing inserts coded with bars of magnetic ink, the output of the signal detecting circuit being used as the input to a sorter logic controlling a sorter mechanism.

REFERENCES:
patent: 3290487 (1966-12-01), Scott
patent: 3654435 (1972-04-01), Vaccaro
patent: 3840892 (1974-10-01), Hayashi
patent: 3895220 (1975-07-01), Nelson
patent: 4006455 (1977-02-01), Hamilton
patent: 4053737 (1977-10-01), Lafevers

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