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US09542991B1 Single-ended signal equalization with a programmable 1-tap decision feedback equalizer 有权
具有可编程1点抽头决策反馈均衡器的单端信号均衡

Single-ended signal equalization with a programmable 1-tap decision feedback equalizer
Abstract:
An apparatus includes a first circuit and a second circuit. The first circuit may be configured to (i) receive a sequence of input values that have been carried on a single-ended line of a data bus coupled to a memory channel, (ii) slice a previous input value of said sequence of input values to generate a previous output value, (iii) slice a current input value of said sequence of input values to generate a current output value, and (iv) present said current output value on a differential line. The previous input value generally precedes said current input value in said sequence of input values. The second circuit may be configured to decode said previous input value based on a tap coefficient value to generate a plurality of feedback values suitable to reduce an inter-symbol interference in said current input value caused by said previous input value.
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