Period determination of a periodic NRZ signal
US7379830B2 · kind B2 · utility
2Cited by
4References
12Claims
0Family size
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Key dates
| Filing date | May 24, 2005 |
| Grant date | May 27, 2008 |
| Priority date | — |
| Expiry date | May 24, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for determining the period Tp of a signal representing a digitally modulated waveform using NRZ coding with a discrete/integer number of a clock periods between signal transitions, where a periodic sequence of logic “1s” and logic “0s” is transmitted. The method samples an input periodic signal, constructs an estimate of the autocorrelation sequence rk of the sequence of samples, constructs a sequence of peaks pk, and computes the period Tp to be the time between the first pk sample (k=0), and the time location of the maximum value of pk based on the known Ts spacing of the pk sequence samples.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.