Multi-purpose sensor and data link
US6651028B2 · kind B2 · utility
1Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Jan 31, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/82
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Modulating digital data onto a carrier frequency and then amplitude modulating the result with a waveform of a different frequency permits measuring position and velocity of an elevator cab while transmitting digital data to the cab.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.