Real-time correction method for oven controlled crystal oscillator and electromagnetic receiver
US11545933B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2022 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Jun 14, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/16
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a real-time correction method for an Oven Controlled Crystal (Xtal) Oscillator (OCXO) and an electromagnetic receiver. The real-time correction method for an OCXO includes: performing frequency multiplication on a reference clock signal to generate a first measurement signal and a second measurement signal; identifying a rising edge of each pulse per second on the basis of the first measurement signal to obtain a gate time T; obtaining a frequency of the second measurement signal according to the gate time T; and adjusting a frequency of the reference clock signal at least on the basis that an absolute value of a difference between two adjacent frequencies obtained of the second measurement signal is greater than a standard frequency difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.