Output conversion circuit and fingerprint identification system
US10204258B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2017 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | May 16, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/0665
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides an output conversion circuit and a fingerprint identification system. The output conversion circuit includes: a comparator, a counter, and a reference signal generator, where the comparator includes: a first input end, configured to receive a first output signal; a second input end; and an output end, configured to generate a comparison output signal; the counter is connected to the output end of the comparator, and configured to generate a second output signal; and the reference signal generator is connected to the second input end, and configured to generate a reference signal, where the reference signal generator includes a random digit generator configured to generate a random digit, and the reference signal is associated with the random digit; where the comparator generates the comparison output signal according to the first output signal and the reference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.