High resolution time-to-digital converter
US6754613B2 · kind B2 · utility
52Cited by
10References
115Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2002 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Dec 10, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F10/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A time to digital converter (TDC) has a pair of digital oscillators. The periods of the oscillators differ by T&Dgr;. The oscillators are triggered by START and STOP pulses. A counter counts a number of pulses until reference points on the signals output by the oscillators coincide. Measurements may be made using a dual resolution method. Intrinsic jitter of the TDC can be determined by comparing sets of measurements in which the switch in resolutions is made at different points. A range extender circuit may be provided to extend a valid measurement range of the TDC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.