Patent ID: 8649476

Claim:
Apparatus for baud-rate timing recovery in a receiver comprising: an eye sampler configured to sample a data eye from a data stream subject to equalization, the eye sampler including at least one data error sampler, at least one timing error sampler, and at least one data sampler; a skew clock and data recovery (CDR) circuit configured to: i) generate a data clock to each data sampler and to each data error sampler at a baud rate of the data stream, wherein the skew CDR positions, in amplitude and phase, the data clock so as to position the data sampler about the center of the data eye, and ii) generate a timing error clock from each timing error sampler, the timing error clock skewed by a phase offset from the data clock; and the CDR circuit configured to adaptively adjust phases of the data clock and the timing error clock based on samples from each data sampler and each timing error sampler based on a predetermined criterion.