Small-sized attitude detection sensor and portable telephone using the small-sized attitude detection sensor
US7420364B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 17, 2005 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Jan 15, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An attitude detection sensor includes three magnetic sensing parts that detect magnetic field strength in respective directions along three axes perpendicular to each other, and two tilt sensing parts that detect tilt angles around two axes perpendicular to each other. The tilt sensing parts each include a cantilever having a magnet body that moves in accordance with the tilt angle, and a magnetic detection head that detects a displacement of the magnet body. The three magnetic sensing parts and the two magnetic detection heads are each formed using a magnetic detection element of the same type. At least one electronic circuit for controlling the five magnetic detection elements, the three magnetic sensing parts, and the two tilt sensing parts is disposed in a single package in the form of a module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.