Position encoding using impedance comparison
US7023363B1 · kind B1 · utility
0Cited by
12References
16Claims
0Family size
Inventors
Key dates
| Filing date | Feb 17, 2005 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Feb 17, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/301
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An encoder system includes an encoding medium having a plurality of encoder target portions alternating with a plurality of encoder window portions. A sensor is movable in relation to the encoding medium. A signal source provides an electronic drive signal to the sensor and sensor electronics coupled to the sensor sense an electrical characteristic of the code strip to determine whether the sensor is next to an encoder target portion or is next to an encoder window portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.