Patent ID: 11946959
Assignee: MTD PRODUCTS INC
Field: Control (Instruments)
Classification: CPC G  A | IPC G

Claim 0:
1. A demarcating system for indicating a boundary of an area to an object, the object having a receiver for receiving electromagnetic signals, the system comprising:
a non-transitory machine-readable medium configured to store instructions; and
one or more processors configured to execute the instructions to:
control a signal generator to apply voltage signals to a wire loop, thereby causing the emission of corresponding electromagnetic boundary indicating signals from the wire loop for receipt by the receiver of the object;
analyze current signals present within the wire loop, wherein the current signals are sensed via current sensing circuitry that is electrically connected to the wire loop to sense the current signals present within the wire loop; and
operate in a calibration mode to:
cause the signal generator to apply a series of test voltage waveforms to the wire loop, each of the test voltage waveforms generating a corresponding current waveform within the wire loop; and
analyze the series of corresponding current waveforms, as sensed by the current sensing circuitry, to determine an operating voltage waveform that, when applied to the wire loop, generates a corresponding operating current waveform,

wherein a complete cycle of a predetermined current waveform comprises a number of positive peaks and a number of negative peaks, the number of positive peaks being different than the number of negative peaks, and
wherein a complete cycle of the corresponding operating current waveform comprises the number of positive peaks and the number of negative peaks.