Woo-Jong Lee

Portable electronic device for changing menu display state according to rotating degree and method thereof

Mobile communication device for searching data based on rotation degree and a method thereof

Portable electronic device and method for changing menu display state according to rotating degree

Photographing device and method for panoramic imaging

Geomagnetic sensor and azimuth calculation method thereof

Geomagnetic sensor having a dip angle detection function and dip angle detection method therefor

Apparatus and method of compensating for an attitude error of an earth magnetic sensor

Three-axis fluxgate-type magnetism detecting device and method

Image pickup device and method for panoramic imaging

Geomagnetic sensor for informing users whether detected azimuth angle is acceptable, and a method thereof