Method and apparatus for pseudorandom boundary-scan testing
US5774477A · kind A · utility
14Cited by
1References
13Claims
0Family size
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Key dates
| Filing date | Dec 22, 1995 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Dec 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/318547
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Pseudorandom Boundary-Scan testing of a interconnects within a system (10) is accomplished by first generating a pseudorandom pattern and then filtering the pattern before application to the system to modify values within each pattern that could cause a signal conflict. Each response generated by the system upon application to the system is also filtered to mask non-deterministic values with the response. The filtered response is compared to a set of signatures representing a fault-free condition to detect faults within the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.