Circuit and method for removing spread spectrum
US12052336B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2022 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Aug 27, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/69
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A circuit and a method for removing spread spectrum are provided. The circuit includes a data clock recovery module and a clock extraction module that are connected. The data clock recovery module performs clock recovery on an input signal carrying spread spectrum information to obtain a parallel clock signal and a first signal, where the parallel clock signal includes frequency information and phase information, and the first signal includes the frequency information. The clock extraction module divides a frequency of the parallel clock signal to obtain a reference clock signal; acquires a feedback clock signal based on the first signal; acquires a de-spread clock signal based on the reference clock signal and the feedback clock signal, where the de-spread clock signal includes the phase information and does not include the frequency information; and divides a frequency of the de-spread clock signal to obtain an output clock signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.