Vehicle compass with electronic sensor
US5255442A · kind A · utility
407Cited by
20References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1991 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Dec 20, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2001/1246
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electronic compass is described for use in vehicles. The compass employs a magnetoresistive sensor for sensing the earth magnetic field and the sensor is operated in alternate set/reset bias modes. The compass is provided with deviation compensation by a closed loop system including measurement of the sensor output signals and an offset current strap for nullifying the vehicle deviation field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.