US Patent 9860087 Low power speculative decision feedback equalizer

Embodiments of the present invention may provide the capability for reducing power consumption in a speculative decision feedback equalizer by powering up the speculative path that is going to take the next decision based on the previous decision, and holding other paths in a reset low-power condition. For example, a Speculative Decision Feedback Equalizer may comprise a plurality of speculative paths, circuitry to provide power to a speculative path that will take the next decision based on the current decision, and circuitry to keep at least one other speculative path in a reset state with low or reduced power consumption.