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AssigneeSony Corporation
InventorsYoshihisa Kawamura, Kazuo Kurihara, Zenkichi Nakamura, Kietsu Iwabuchi, Toshio Aizawa, Hideo Suyama
Estimating the term…
A geomagnetic direction sensor has a plurality of magnetic cores for converging terrestrial magnetism arranged circumferentially with pre-set gaps, and magneto-resistive effect devices in the gaps so as to lie substantially at right angles to the direction of the magnetic field in the gaps. The geomagnetic direction sensor has at least a pair of magneto-resistive effect devices lying substantially at right angles to each other. The magnetic core is formed of a magnetic material having soft magnetic properties. The current is supplied to the excitation coils placed around the magnetic core for applying a bias magnetic field to the magneto-resistive effect devices. Another set of magneto-resistive effect devices are connected in series with the magneto-resistive effect devices arranged within the gap so as to be substantially parallel to the direction of the magnetic field.
A geomagnetic direction sensor comprising:
A geomagnetic sensor comprising:
A method of generating a signal representative of a geomagnetic field comprising the steps of:
Dependencies are inferred from the claim text.