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    • 3. 发明授权
    • Tracking data eye operating margin for steady state adaptation
    • 跟踪数据眼动操作裕度进行稳态调整
    • US08711906B2
    • 2014-04-29
    • US12941217
    • 2010-11-08
    • Mohammad MobinYe LiuAmaresh Malipatil
    • Mohammad MobinYe LiuAmaresh Malipatil
    • H04B1/38H04L5/16
    • H04L25/03012H04L2025/03439
    • In described embodiments, a transceiver includes an eye monitor and margin detector having one or more samplers with corresponding logic. One or more programmable provisioning parameters are defined based on a pre-defined minimum target operating margin for acceptable noise and jitter margins. For example, two programmable provisioning parameters, phase and voltage, correspond with thresholds for margin samplers placed within the eye. Initially, the transceiver applies equalization, after which an inner eye of the transceiver, as detected by the eye monitor, is relatively open with some margin for supporting channels. If the receiver margin goes below this target margin, the eye closes, which is registered by the samplers. In the presence of spectrally rich input data, if the receiver margin goes below this target margin, an updated adaptation of equalizer or other circuit parameters might be initiated; else, adaptation is not generally required.
    • 在所描述的实施例中,收发器包括具有具有相应逻辑的一个或多个采样器的眼睛监视器和边缘检测器。 基于用于可接受的噪声和抖动余量的预定义的最小目标操作裕度来定义一个或多个可编程供应参数。 例如,两个可编程供应参数(相位和电压)对应于放置在眼睛内的余量采样器的阈值。 最初,收发机应用均衡,之后由眼睛监视器检测到的收发器的内眼相对开放,具有用于支持信道的一些余量。 如果接收机边缘低于该目标边距,则眼睛关闭,由采样器注册。 在存在频谱丰富的输入数据的情况下,如果接收器余量低于该目标余量,则可以启动更新的均衡器或其他电路参数的适配; 否则,通常不需要适应。