Secure architecture and apparatus using an independent computer cartridge
US5630057A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1996 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Jul 1, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2153
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer architectural and apparatus system for preventing software copying or alteration, and providing enhanced computational capabilities, physical information security, and physical environment protection is disclosed. The system comprises an Independent Computer Module (ICM), and an Interface Unit. The ICM comprises a CPU, a RAM, a ROM, a memory switching means, a communications port, and a connectorless interface contained within a sealed cartridge. The Interface Unit comprises a receptacle for receiving the ICM, which contains a matching connectorless interface, and wiring to a host computer's port and power. The connectorless interface uses directional electro-magnetic emitters and sensors to prevent signal leakage. The memory switching means turns off the entire secure memory, enabling non-secure programs to be run from another section of RAM. Reactivation of secure memory by a non-secure program causes program control to be transferred to a fixed address within the secure program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.