Mechanical code comparator
US6484545B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1999 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Apr 19, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7311
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A new class of mechanical code comparators is described which have broad potential for application in safety, surety, and security applications. These devices can be implemented as micro-scale electromechanical systems that isolate a secure or otherwise controlled device until an access code is entered. This access code is converted into a series of mechanical inputs to the mechanical code comparator, which compares the access code to a pre-input combination, entered previously into the mechanical code comparator by an operator at the system security control point. These devices provide extremely high levels of robust security. Being totally mechanical in operation, an access control system properly based on such devices cannot be circumvented by software attack alone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.