Integrated circuit signature analyzer for testing digital circuitry
US4897842A · kind A · utility
52Cited by
15References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1987 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | Nov 5, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/277
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for testing digital circuitry includes a signature generator that is connected to a plurality of nodes in the circuit to be tested and that generates signature words unique to identical streams of binary data signals or clocking signals. A multiplexer sequentially directs streams of signals to the signature generator from selected test nodes, or data streams from a plurailty of nodes can be signaturized simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.