Angle digitizer
US4277748A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1979 |
| Grant date | Jul 7, 1981 |
| Priority date | — |
| Expiry date | Aug 29, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/361
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An angle digitizer receives signal representing the sine and cosine of the angle to be digitized. The voltages are fed to orthogonal pairs of input terminals. Between each two input terminals is a set of equivalued resistors to form a resistor ring. At the junction of each pair of resistors is an output terminal. Each pair of output terminals is connected to the input terminals of a signal amplitude comparator which compares the magnitude of the signals at its inputs to give a digital signal in accordance with which is greater. For each comparator the output terminals of the resistor ring are selected such that the signals are in a direct antiphase relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.