Noise Isolator For a Portable Electronic Device
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United States of America Patent
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Issued Date -
Jun 19, 2014
app pub date -
Jul 28, 2011
filing date -
Jul 28, 2011
priority date (Note) -
Abandoned
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Abstract
An apparatus for reducing noise in an electrical system includes a first isolation stage for a patient monitoring system that provides a first power transformation and a first isolation barrier to current flow. The patient monitoring system including a portable patient monitoring device, a charging apparatus that charges the portable patient monitoring device and a power supply that provides power to the charging apparatus and the first isolation stage is connected to the power supply. A second isolation stage is electrically connected between the first isolation stage and the charging apparatus. The second isolation stage provides a second power transformation and a second barrier to current flow, the second isolation stage reduces noise in the electrical system caused by stray currents.
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