Phase meter using a permuter
US6441601B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Nov 17, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A phase meter measures the phase of a first signal with respect to a second signal, where the first and second signals have different frequencies and the frequency of the first signal is higher than the frequency of the second signal. The phase meter samples the first signal using the second signal to produce a plurality of samples, where each sample has a sample phase and value. The phase meter permutes the plurality of sample phases to place their phase positions in phase order, and determines, for each permuted sample phase if the sample phase is within a phase range corresponding to a predetermined phase bin. If the sample is within a phase range for a phase bin, a bin counter for that bin in incremented. The phase of the faster signal is determined based on the counts in each of the phase bins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.