Digital transceiver driven by synchronous spread spectrum clock signal for data transmission
US11196454B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 9, 2019 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Oct 9, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/20
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital transceiver is provided. The digital transceiver includes a clock generator configured to generate a first clock signal having a first frequency of a fixed value and a transmitter driven by the first clock signal of the first frequency to transmit data. Additionally, the digital transceiver includes an inverter coupled to the clock generator to generate an inverted first clock signal of the first frequency. Further, it includes a frequency detector configured to compare the first frequency with a second frequency of a feedback signal in a loop of feedback to determine a frequency control word F. Furthermore, it includes a digitally-controlled oscillator driven by the frequency control word F in the loop of feedback to output a second clock signal with a time-average frequency substantially synchronous to the first frequency with a boundary spread and a receiver driven by the second clock signal to receive the data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.