Tool detecting apparatus

Details Tool detecting apparatus Tool detecting apparatus

1989-06-01

1991-07-02

Smith, Jerry

Boots, shoes, and leggings

36447437, 356373, G06F 1546

Patent

active

050290975

ABSTRACT:
A tool detecting apparatus including a first detection part having a plurality of arrayed light-receiving elements receiving a beam of light passing around a tool placed in an optical path and a memory circuit for sequentially storing binary signals corresponding to the outputs of the light-receiving elements scanned at a predetermined time interval thereby updating its previous contents, and at least one of a second detection part, third detection part and a fourth detection part. The second detection part includes a state detection circuit and a timing circuit while the third detection part includes a holding circuit and an arithmetic circuit. The fourth detection part includes another arithmetic circuit.

REFERENCES:
patent: 4441205 (1984-04-01), Berkin et al.
patent: 4630225 (1986-12-01), Hisano
patent: 4631519 (1986-12-01), Johnston
patent: 4658494 (1987-04-01), Ohtani et al.

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