Signal switching circuit and peripheral component interconnect express connector assembly having the signal switching circuit
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United States of America Patent
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Jan 12, 2016
Grant Date -
Aug 7, 2014
app pub date -
Aug 2, 2013
filing date -
Jan 30, 2013
priority date (Note) -
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Abstract
A signal switching circuit allows a PCIe card access to additional data channels when installation of the PCIe cards on first and second PCIe connectors are detected. First and second PCIe connectors output a first detection signal when each of the first and second PCIe connectors receives a PCIe card. The first and second PCIe connectors output a second detection signal when each of the first and second PCIe connectors does not receive a PCIe card. A first multiplexer receives the first or second detection signal and connects an input terminal to first or second output terminal of the first multiplexer, to transmit PCIe signals to the first or second PCIe connector. A second multiplexer receives the first or second detection signal and connects an input terminal to first or second output terminal of the second multiplexer, to transmit PCIe signals to the first or second PCIe connectors.
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