High resistivity inner shields for audio cables and circuits
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United States of America Patent
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-
Dec 28, 1993
Grant Date -
N/A
app pub date -
Mar 9, 1992
filing date -
Mar 9, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In one embodiment of an electrical cable, a high resistivity inner shield surrounds and is insulated from a central conductor within the electrical cable. The inner shield is surrounded by, and optionally insulated from, an outer, highly conductive shield. This approach may be thought of as shielding the interior central conductor from the outside highly conductive metal shield. The inner shield attenuates the effects of fluctuating voltage gradients in the outer shield on the central conductor. This technique of an inner shield shielding an interior electrical conductor may also be employed in cabinets for electronic equipment.
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