20100243745 | APPARATUS AND METHOD FOR REPELLING AN UNDESIRED SPECIES FROM A SUBJECT SPECIES - A pest management apparatus includes a machine readable storage medium such as a magnetic strip. The machine readable storage medium embeds trivector data indicative of a composite trivector signature. The composite trivector signature is derived from first and second trivector signatures. The first and second trivector signatures are indicative of first and second electromagnetic fields characteristic of first and second species respectively. The composite trivector signature may be derived by summing the first trivector signature and an inverse of the second trivector signature. The machine readable storage medium may have a plurality of tracks and one or more of the tracks may include a portion of the trivector data. The magnetic strip may include three tracks, each storing a component of the trivector data. The presence of each data component within its respective track generates a magnetic field and the cumulative effect of the three fields approximates the composite trivector field. | 09-30-2010 |