Signal detection circuit and signal detection method
US11115034B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2020 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Aug 14, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C27/02
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention provides a signal detection circuit, wherein the signal detection circuit includes a sampling circuit and a determination circuit. In the operations of the signal detection circuit, the sampling circuit uses a plurality of clock signals to sample an input signal to generate a sampling result, wherein the plurality of clock signals have different phases, and frequencies of the plurality of clock signals are lower than a frequency of the input signal. The determination circuit refers to the sampling result to determine if the input signal comprises valid data, so as to determine if the input signal comes from outside a chip, wherein the chip includes the signal detection circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.