错误校正
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检测并修复数据传输错误而无需重传的技术。
前向错误校正（FEC）添加冗余位，使接收端能够重建损坏的数据。USB4、DisplayPort 2.1和HDMI 2.1都使用FEC来在高速下保持可靠性。没有错误校正，长线缆或噪声环境会导致频繁的数据损坏和视觉伪影。