Reduction in maximum time uncertainty of paired time signals
US4408297A · kind A · utility
2Cited by
11References
10Claims
0Family size
Inventors
Key dates
| Filing date | Feb 11, 1981 |
| Grant date | Oct 4, 1983 |
| Priority date | — |
| Expiry date | Feb 11, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/1642
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Reduction in the maximum time uncertainty (t.sub.max -t.sub.min) of a series of paired time signals t.sub.1 and t.sub.2 varying between two input terminals and representative of a series of single events where t.sub.1 .ltoreq.t.sub.2 and t.sub.1 +t.sub.2 equals a constant, is carried out with a circuit utilizing a combination of OR and AND gates as signal selecting means and one or more time delays to increase the minimum value (t.sub.min) of the first signal t.sub.1 closer to t.sub.max and thereby reduce the difference. The circuit may utilize a plurality of stages to reduce the uncertainty by factors of 20-800.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.