Measurement of signal propagation delay using arbiters
US6340901B1 · kind B1 · utility
3Cited by
20References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2000 |
| Grant date | Jan 22, 2002 |
| Priority date | — |
| Expiry date | Mar 9, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/26
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Arbiter circuits placed between two signal path segments on a semiconductor chip to measure the difference in propagation delay between those paths at their beginning and end. Each arbiter circuit has two inputs, and outputs signals indicating which of its inputs is the first to receive a leading edge of an input transition. External circuitry monitors the arbiter outputs, and accordingly controls the application of the input transitions. By varying the delay of the input signal paths, the relative propagation delay can be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.