quadruplex

<communications> A kind of telegraphy system developed by Thomas A. Edison in the 1870s combining diplex and duplex communications to support simultaneous transmission of two messages in each direction.

Last updated: 2000-04-02

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Nearby terms: Quadralay Corporation « Quadrature Amplitude Modulation « quadruple bucky « quadruplex » Quake » Qualcomm » quality


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Copyright Denis Howe 1985

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