Communications: radio wave antennas – Antennas – With vehicle
Reexamination Certificate
2005-12-06
2005-12-06
Ho, Tan (Department: 2821)
Communications: radio wave antennas
Antennas
With vehicle
C343S757000, C343S766000, C342S354000, C342S359000
Reexamination Certificate
active
06972724
ABSTRACT:
A self-correcting mobile antenna control system and method. A method is provided for controlling the direction of an antenna mounted on a vehicle. The method includes determining a position decision based on a direction change signal output from a direction sensor, determining an energy decision based on a signal strength indicator, combining the position decision and the energy decision to produce an antenna control signal, and adjusting the antenna's direction based on the antenna control signal. The system also operates to periodically calibrate itself to offset any sensor errors so that intensive calibration procedures can be avoided.
REFERENCES:
patent: 5621415 (1997-04-01), Tuck
patent: 6271798 (2001-08-01), Endo et al.
patent: 6389340 (2002-05-01), Rayner
patent: 6774860 (2004-08-01), Downs
patent: 2003/0141990 (2003-07-01), Coon
Erlenbach Judd
Tian Bin
Bachand Richard A.
Brown Charles D.
Ho Tan
Qualcomm Incorporated
Wadsworth Phil
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