Electrical signal frequency detector
US5896049A · kind A · utility
6Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1997 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | Oct 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R23/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A circuit for measuring the frequency of an electrical signal includes a detector that senses a reoccurring phase point the electrical signal. A divide-by-M counter is connected to the detector and produces a control signal upon every Mth occurrence of the indication, where M is a positive number greater than one. A clock signal generator is provided. An output counter counts cycles of the clock signal between occurrences of the control signal and divides the count by M to produce an output count that corresponds to the frequency of the electrical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.