Frequency and phase measurement circuit
US10305498B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2018 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Sep 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/30
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Various embodiments provide for a circuit for measuring a frequency difference, a phase difference, or both of at least two clock signals (e.g., a reference clock signal and a feedback clock signal). In particular, various embodiments described herein may be used in a circuit design to convert an input phase of two clock signals to a frequency difference, which may be outputted in the form of a digital word. Additionally, various embodiments described herein may be used in a circuit design to convert an input phase of two clock signals as phase difference output, which may be outputted in the form of a digital word. Various embodiments can provide the frequency difference, the phase difference, or both in near real-time and with only a small amount of latency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.