Patent · US Active

Signaling system with adaptive timing calibration

US8121237B2 · kind B2 · utility

45Cited by
54References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 16, 2006
Grant dateFeb 21, 2012
Priority date
Expiry dateOct 21, 2030

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L7/0004
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

An integrated circuit device includes a delay circuit, sampling circuit and delay control circuit that cooperate to carry out adaptive timing calibration. The delay circuit generates a timing signal by delaying an aperiodic input signal for a first interval. The sampling circuit samples a data signal in response to the timing signal to generate a sequence of data samples, and also samples the data signal in response to a phase-shifted version of the timing signal to generate a sequence of edge samples. The delay control circuit adjusts the first interval based, at least in part, on a phase error indicated by the sequence of data samples and the sequence of edge samples.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.