Schmitt trigger input buffer circuit
US5327020A · kind A · utility
11Cited by
5References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 27, 1992 |
| Grant date | Jul 5, 1994 |
| Priority date | — |
| Expiry date | Oct 27, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/0377
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A Schmitt trigger input buffer circuit includes two inverting gates with different threshold voltages, which receive an input signal, a dual-input-AND pair and dual-input-NOR composite gate, and another inverting gate. Two of the inputs of the composite gate receive the outputs from the two inverting gates. The output signal of the composite gate and its inverted version are fed back respectively to the remaining two inputs of the composite gate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.