Systems and methods for supporting both pulse amplitude modulation and quadrature amplitude modulation
AssigneeAltera Corporation
InventorsMasashi Shimanouchi, Hsinho Wu, Peng Li
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AssigneeAltera Corporation
InventorsMasashi Shimanouchi, Hsinho Wu, Peng Li
Estimating the term…
Systems and devices are provided for receiving or transmitting IQ data (e.g., suitable for passband quadrature amplitude modulation (QAM)) over a wireline using pairs of baseband pulse amplitude modulation (PAM-n) signals. Encoding circuitry may map data from an input bit stream to IQ data that includes an in-phase component and a quadrature-phase component. Modulator circuitry may determine an in-phase PAM-n signal based on the in-phase component and a quadrature-phase PAM-n signal based on the quadrature-phase component. Driver circuitry may transmit the in-phase PAM-n signal and the quadrature-phase PAM-n signal across a wireline channel. The in-phase PAM-n signal may be different by 90° from the quadrature-phase PAM-n signal. This may enable a remote receiver on the wireline channel to detect the in-phase PAM-n signal independently of the quadrature-phase PAM-n signal.
An electronic device comprising:
A wireline receiver system comprising:
An electronic device comprising:
A wireless extender system to bridge between a first wireline and a second wireline, the wireless extender system comprising:
A wireline extender system to bridge between a first wireless channel and a second wireless channel, the wireless extender system comprising:
An electronic device comprising:
Dependencies are inferred from the claim text.