Mobile communication system

Communications: directive radio wave systems and devices (e.g. – Radar ew – Eccm

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375346, 455 63, 455296, H04B 110

Patent

active

058894888

ABSTRACT:
A mobile communication system aiming at immediately recovering from radio disturbances which are frequently caused in a communication device mounted on a mobile unit. This mobile communication system is provided with an antenna for transmitting and receiving an electromagnetic wave, a tracking device for adjusting a pointing direction of the antenna to a direction in which an electromagnetic wave arrives, a receiving device for demodulating a received electromagnetic wave, a transmitting device for modulating information, which is to be transmitted, to an electromagnetic wave, a handset for displaying information to a user and for receiving an instruction from a user, and a control unit for controlling the tracking device, the receiving device, the transmitting device and the handset. Further, the control unit forming the heart of this system has a countermeasure device, a display unit and a fault inferring device. Moreover, the inference of a cause of a radio disturbance is performed by monitoring the variation in the signal level of a received signal and being based on a pattern of the obtained variation.

REFERENCES:
patent: 5574978 (1996-11-01), Talwar et al.
patent: 5661724 (1997-08-01), Chennakeshu et al.
patent: 5739788 (1998-04-01), Oybdal et al.
patent: 5740208 (1998-04-01), Hulbert et al.

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