Patent ID: 11917047
Assignee: nan
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 11:
12. A physical device implementation of an Elusive Key (Rock) comprising:
a two-dimensional array where each element of the (x,y) array is either empty, or non-empty, and where non-empty bins contain a material ingredient ri from a selection of f ingredients r1, r2, . . . rf, where each of the f ingredients is characterized by a reflecting color, or a different electromagnetic radiation which is uniquely measurable, and where each bin is being viewed by appropriate sensors fitted with electrical probes connected to electrical circuitry that measures the radiation of a bin's content and thereby identifies which ingredient out of the f possibilities it contains, and where at least each of the n of these material ingredients are associated with exactly one letter of the plaintext alphabet P, so all the n letters of P are each associated with at least one of the f material ingredients, and where some of the f materials are associated with non-letter, non-empty bins (decoy bins).