Antenna direction finding in mobile phones

Telecommunications – Transmitter and receiver at separate stations – With control signal

Reexamination Certificate

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Details

C455S404200, C455S456100, C455S066100, C343S757000, C342S154000, C244S165000, C244S166000, C244S167000

Reexamination Certificate

active

06850737

ABSTRACT:
The present invention describes a communication system comprising a primary radio station (PS) and at least one secondary radio station (SS), intended to be in motion (MOT). The secondary radio station has at least one controllable structure (CS) for communicating with the primary radio station, and control means (CONT) for controlling the controllable structure depending on the movements of the secondary radio station. The control means of the controllable structure comprise magnetic field sensors (MFS) and gravitational field sensors (GFS) for providing measurements of the earth magnetic (H) and gravitational (G) fields, and computing means (COMP) for computing control information from these measurements. The computing means read the outputs of each sensor and make the calculations required to control the controllable structure at appropriate time intervals depending on the motion state of the secondary radio station.

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By K. Fuimoto et al., “Mobile Antenna Systems Handbook” Artech House, Inc., 1994, pp. 436-451.

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