Device for measuring the duration of a time slot
US5717659A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1995 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Sep 21, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F10/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for measuring the duration of a time slot or interval includes a first clock for supplying pulses of period T and a second clock, whose pulses are shifted with respect to the first. A digital circuit counts the number of pulses of the clocks, which are followed by a complete period T and which occur between the start signal and the stop signal. An analog circuit determines the times separating the start signal and the start of the first pulses of the clocks after the start signal and the times separating the stop signal and the end of the final periods of the clocks before the stop signal, and converts the analog data into digital data. A processing circuit determines the duration of the time slot, and resolves any ambiguity situation, which could lead to a clock period counting error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.