Electrical pulse counters – pulse dividers – or shift registers: c – Applications – Counting animate or inanimate entities
Patent
1987-05-28
1988-08-30
Heyman, John S.
Electrical pulse counters, pulse dividers, or shift registers: c
Applications
Counting animate or inanimate entities
377 15, 235 98C, G06M 1100
Patent
active
047682094
ABSTRACT:
A magnetic induction counting device includes: an inductive source having a permanent magnetic member disposed therein and a structure adapted to be worn on a worker's hand during material handling and counting operations; at least two sensing members made of Hall element for detecting the magnetic field of the inductive source and producing a voltage signal; a plurality of amplifiers respectively connected to the sensing members for receiving and amplifying the voltage signal of the sensing members; a sequential processor coupled with the amplifiers for outputting a pulse signal according to a sequential and unilateral condition of the voltage signal received from the amplifiers; and a counter functionally connected to the sequential processor for performing counting and displaying operations according to the pulse signal; thereby, during material handling and counting operations, automatic counting of the materials can be conveniently carried out in accordance with the movement of the worker's hand wearing the inductive source.
REFERENCES:
patent: 3327942 (1967-06-01), Blume
patent: 4122331 (1978-10-01), Tsubota et al.
patent: 4484066 (1984-11-01), De Blieux et al.
patent: 4528679 (1985-07-01), Shahbaz et al.
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