Method and apparatus for the evaluation of an angle over an extended range
US4852026A · kind A · utility
1Cited by
8References
8Claims
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Key dates
| Filing date | Jun 25, 1986 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Jun 25, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06J1/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and device for evaluating an angle A known by at least two trigonometric functions and capable of varying over a range greater than 360.degree.. Two counter integers N.sub.0, N.sub.1 are stored and up-dated, each with respect to the other, as a function of even and odd indicator signals FC.sub.2, FS.sub.2. The value of the angle A, expressed in quarter turns, is given by the first or the second counter number as a function of the value of the even indicator signal FC.sub.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.