Clock data recovery apparatus and operation method thereof
US10855437B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2019 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Sep 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0338
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a clock data recovery apparatus and an operation method thereof. The clock data recovery apparatus includes an equalizer, a phase detector, a charge pump, and an oscillation circuit. The equalizer is configured to equalize raw data to generate equalized data. The phase detector is coupled to the equalizer to receive the equalized data. The phase detector is configured to generate a detection result according to the equalized data. The phase detector performs pattern-filtering on the equalized data to filter out at least one pattern. The charge pump is coupled to the phase detector to receive the detection result. The charge pump is configured to generate a control signal according to the detection result. The oscillation circuit is coupled to the charge pump to receive the control signal. The oscillation circuit is configured to generate a clock signal according to the control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.