Selectively squelching differential strobe input signal in memory-device testing system
US11217287B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2020 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Sep 15, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/5602
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In an embodiment, a differential strobe input squelch circuit includes a squelch sub-circuit that is configured to perform operations including receiving a true strobe signal, a complement strobe signal, and a strobe difference signal that is representative of a difference between the true strobe signal and the complement strobe signal; determining, based on the true strobe signal and the complement strobe signal, whether the strobe difference signal is defined or undefined; and outputting a modified strobe difference signal that is equal to the strobe difference signal when the squelch sub-circuit determines that the strobe difference signal is defined and that is instead equal to a constant strobe-level voltage when the squelch sub-circuit determines that the strobe difference signal is undefined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.