Protecting one-hot logic against short-circuits during power-on
US7245159B2 · kind B2 · utility
5Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2004 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | May 20, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/005
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method, a computer program, and an apparatus are provided to protect transmission gates in a multiplexer (mux). Because transmission gates are much faster than the more convention AND-OR arrays, transmission gate usage in muxes are being used more often in high speed circuitry. However, transmission gate have a significant problem in that short circuit are possible for situations where there is not a one-hot select signal. Therefore, to eliminate the problem, logic gates are utilized specifically during Power-On Reset (POR) to force a one-hot selection to prevent any possible short circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.