Radio controlled servo extender method and system
OwnerWalter S. Polaninventor
Life of this patent
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Abstract
A control system is disclosed to extend the range of rotation of a radio-controlled servo towards its physical limits. A microprocessor and its various interconnections are inserted between the output of a radio control receiver and the input to the servomotor to analyze the output of the receiver and to re-scale it to allow movement beyond 45 degrees in either direction from its quiescent position. As described, this is done by converting the receiver output pulse from one which is 1 to 2 milliseconds in width to an output pulse for the servo which is 0.5 to 2.5 milliseconds in width.
Claims7
A method for extending the range of a radio-controlled servomotor comprising the steps of:
- a) transmitting a radio frequency signal defining desired servomotor rotation to the left and right of an initial quiescent condition, said signal being of a variable pulse width falling within a first range of available pulse widths, and including a predetermined pulse width in said first range which establishes said initial quiescent condition;
- b) receiving said radio frequency signal;
- c) processing said received signal to provide an output signal of a variable pulse width falling within a second range of pulse widths, different from said first range of pulse widths, but maintaining said same predetermined pulse width to establish said same initial quiescent condition for said servomotor;
- and
- d) inputting said output signal to said servomotor to control the rotation thereof.
A system for extending the range of a servomotor comprising:
- a) means for transmitting a radio frequency signal defining desired servomotor rotation to the left and right of an initial quiescent condition, said signal being of a variable pulse width falling within a first range of available pulse widths, and including a predetermined pulse width in said first range which establishes said initial quiescent condition;
- b) means for receiving said radio frequency signal;
- c) means for processing said received signal to provide an output signal of a variable pulse width falling within a second range of pulse widths, different from said first range of pulse widths, but maintaining said same initial quiescent condition for said servomotor;
- and
- d) means for inputting said output signal to said servomotor to control the rotation thereof.
Dependencies are inferred from the claim text.