Method and apparatus for transferring information into electronic systems
US4774493A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 1986 |
| Grant date | Sep 27, 1988 |
| Priority date | — |
| Expiry date | May 15, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/38
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method are disclosed for transferring information into an integrated circuit over the power supply pins of the integrated circuit. The apparatus and method are used to load a test program into memory of the computer system and the system is caused to execute the test program to verify proper operation of the computer system. The apparatus and method are implemented by converting the information to be loaded into a serial bit stream, using the serial bit stream to modulate the power supply voltage of the computer system. Inside the computer system, the low power supply levels are sensed by a low power supply detection unit an fed to a serial-to-parallel converter where it is converted back into the original information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.