Patent · US Active

Circuit and method for removing spread spectrum

US12052336B2 · kind B2 · utility

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10Claims
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Assignee

Inventors

Key dates

Filing dateJun 29, 2022
Grant dateJul 30, 2024
Priority date
Expiry dateAug 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.