PRINTED CIRCUIT BOARD AND CARD READER
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United States of America Patent
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Issued Date -
Nov 26, 2015
app pub date -
May 26, 2015
filing date -
May 26, 2014
priority date (Note) -
Abandoned
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Abstract
A destruction detection pattern for use on a printed circuit board formed in a plate shape or a film shape may include a conductor wound in a spiral shape. A width of the conductor may be constant. Within an imaginary square overlaying the destruction detection pattern, the imaginary square having a side length that is 12 times the width of the conductor, and wherein a first direction is parallel to a first side of the imaginary square and a second direction parallel to a second side of the imaginary square that is perpendicular to the first side, the destruction detection pattern may include a first pattern part, a second pattern part, a third pattern part and a fourth pattern part. The destruction detection pattern may be structured to detect its own disconnection or its own short circuit.
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