Method and apparatus for converting an electrical signal into a proportional frequency
US4728886A · kind A · utility
1Cited by
3References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 4, 1986 |
| Grant date | Mar 1, 1988 |
| Priority date | — |
| Expiry date | Sep 4, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K7/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for converting an electrical signal into a proportional frequency is disclosed. Modulation of the output frequency resulting from polarity switching cycles having half-periods of unequal duration and capacitor voltages which might be non-zero at the time of polarity reversal are substantially avoided. This permits faster and more precise calibration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.