Patent · US Active

Phase-alignment between clock signals

US9337887B2 · kind B2 · utility

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1References
20Claims
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Inventor

Key dates

Filing dateNov 6, 2014
Grant dateMay 10, 2016
Priority date—
Expiry dateNov 6, 2034

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03K5/26
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

There is proposed a method and system for determining a phase-alignment between first and second clock signals of differing frequency. The method comprise: sampling a value of the first clock signal at instants defined by an edge of the second clock signal; defining a sequence of the sampled values of the first clock signal, wherein consecutive sample values in the sequence are separated by N cycles of the second clock signal, and wherein N is an integer greater than 1; and detecting the occurrence of a predetermined pattern of values in the defined sequence.

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