Ratiometric analog-to-digital converter
US4024533A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1975 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Jul 10, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An analog-to-digitial converter of the dual slope type wherein simultaneous integration of two input signals is achieved to provide a digital output substantially immune to disturbances affecting both signals. First and second dual slope converter circuits are employed, each receiving a respective analog signal. During conversion of the first signal, integration of the second signal is accomplished such that a digital output signal is provided representing the integrated instantaneous ratio of the two input signals and which is substantially free of disturbances affectng both of signals which may be introduced during a conversion cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.