Method and apparatus for controlling antenna and tracking antenn

Details Method and apparatus for controlling antenna and tracking antenn Method and apparatus for controlling antenna and tracking antenn

1996-08-28

1998-06-09

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including antenna orientation

342 77, H01Q 300

Patent

active

057641854

ABSTRACT:
A method and apparatus for controlling an antenna and a tracking antenna system using them. A rate sensor detects the angular rate of the vehicle turning. On the basis of the detected value, an error correction circuit determines the steering angle of the antenna. If it is judged from the determined angle that the vehicle is not turning or only slightly turning, a motor driving circuit suspends driving of a motor and at the same time a linear actuator locks a major gear. If it is judged that an accumulated error of a control target which is determined on the basis of the output of the rate sensor is not negligible, the error correction circuit starts a closed-loop control on the basis of a receiving signal level. In such a manner, the power consumption in the motor can be reduced.

REFERENCES:
patent: 4225871 (1980-09-01), Ramari
patent: 4649398 (1987-03-01), Yamamoto et al.
patent: 4749924 (1988-06-01), Watanabe et al.
patent: 5173708 (1992-12-01), Suzuki et al.
patent: 5351060 (1994-09-01), Bayne

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