Patent ID: 7817002

Claim:
A belt, comprising: a strap including a first field emission structure; an object including a second field emission structure, where the object is attached to the strap when the first and second field emission structures are located next to one another and have a certain alignment with respect to one another, where each of the first and second field emission structures include a plurality of field emission sources having positions and polarities relating to a desired spatial force function that corresponds to a relative alignment of the first and second field emission structures within a field domain, said spatial force function being in accordance with a code, said code corresponding to a code modulo of said first plurality of field emission sources and a complementary code modulo of said second plurality of field emission sources, said code defining a peak spatial force corresponding to substantial alignment of said code modulo of said first plurality of field emission sources with said complementary code modulo of said second plurality of field emission sources, said code also defining a plurality of off peak spatial forces corresponding to a plurality of different misalignments of said code modulo of said first plurality of field emission sources and said complementary code modulo of said second plurality of field emission sources, said plurality of off peak spatial forces having a largest off peak spatial force, said largest off peak spatial force being less than half of said peak spatial force.