Patent ID: 9476826
Filing Date: 2016-10-25
CPC Classification: A47K,B44F,B67C,G01N,G07D

Claim Text:
1. A keying system for interpreting a code based on a spectral response of at least two optical coatings on a substrate between at least one optical transmitter and at least one receiver while authorizing pairing of a first product with a second product to allow or prevent dispensing of the second product by the first product, the system comprising: a transmitter located on the first product, the transmitter configured to transmit at least a first light signal against first and second optical coatings of the code located on the second product when the first product and the second product are being paired, wherein the first product is a dispenser and the second product is a consumable product; a receiver operatively located on the first product, the receiver configured to receive reflected light by the first and second optical coatings of the code; an optical splitter positioned adjacent the transmitter and configured to split the first light signal to separate optical paths that are directed to the first and second optical coatings; and receiver electronics operatively connected to the receiver and configured to: