Time to digital converter with high resolution
US9568889B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2016 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Jun 15, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F10/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A time to digital converter (TDC) with high resolution is provided. The TDC includes a counter, a reference value generator and a comparator. The counter samples an input signal according to a clock signal to calculate a pulse width of the input signal. The reference value generator samples a ruler signal according to the clock signal to generate a reference value. Herein, a frequency of the clock signal is greater than a frequency of the ruler signal, and the frequency of the ruler signal is greater than a frequency of the input signal. The comparator is coupled to the counter and the reference value generator, and compares the pulse width of the input signal and the reference value to generate a count result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.