Metal detector
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 19, 2010
Grant Date -
Oct 8, 2009
app pub date -
Jul 24, 2008
filing date -
Apr 3, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An exemplary metal detector includes a detecting circuit, a SCM, a converting circuit, and a cymometer. The SCM cooperates with the detecting circuit to generate a current signal with a specific frequency, the converting circuit transforms the current signal received from the SCM to a voltage signal, and the cymometer displays a value of a frequency of the current signal according to the voltage signal. When the detecting circuit detects a metal nearby, the value of the frequency of the current signal displayed on the cymometer changes.
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