Product, dispenser and method of dispensing product
First Claim
1. A method of dispensing product comprising:
- exciting a phosphorescent pigment in a reference indication with a first light, said first light directed on a substantially 45-degree angle relative to said reference indication;
emitting a second light with said pigment, said second light directed on a substantially 90-degree angle relative to said reference indication;
measuring a first light intensity of said second light at a first time;
measuring a second light intensity of said second light at second time;
prior to said measuring a first light intensity and said measuring a second light intensity, extinguishing said first light;
calculating a change in light intensity from said first time to said second time; and
comparing said change in light intensity to a predetermined value to determine if said product is authorized product.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of dispensing product includes determining by a processor if product loaded into a dispenser is authorized for use in the dispenser by identifying a reference indication associated with the product; in response to determination that the product is authorized, dispense a first amount of product; and in response to determination that the sheet product is unauthorized, dispense a second amount of sheet product, wherein the second amount of sheet product is different than the first amount. To determine if the sheet product is authorized, a pigment is excited to emit a light with an intensity signature. A portion of the intensity signature is measured and compared to a desired value. If the portion is substantially equal to the desired value, the sheet product is authenticated.
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Citations
15 Claims
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1. A method of dispensing product comprising:
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exciting a phosphorescent pigment in a reference indication with a first light, said first light directed on a substantially 45-degree angle relative to said reference indication; emitting a second light with said pigment, said second light directed on a substantially 90-degree angle relative to said reference indication; measuring a first light intensity of said second light at a first time; measuring a second light intensity of said second light at second time; prior to said measuring a first light intensity and said measuring a second light intensity, extinguishing said first light; calculating a change in light intensity from said first time to said second time; and comparing said change in light intensity to a predetermined value to determine if said product is authorized product. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of dispensing product comprising:
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receiving a signal to dispense said product; authenticating said product after receiving said signal to dispense product by exciting a pigment in a reference indication with a first light; emitting a second light with said pigment in a direction substantially perpendicular to said reference indication, wherein a substantial portion of said first light is reflected by said reference indication in another direction that is not substantially perpendicular to said reference indication; measuring a first light intensity of said second light at a first time; measuring a second light intensity of said second light at second time; calculating a change in light intensity from said first time to said second time; and comparing said change in light intensity to a predetermined value to determine if said product is authorized product; and dispensing product, if product is authorized product. - View Dependent Claims (9, 10)
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11. A method of dispensing product comprising:
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exciting a pigment in a reference indication with a first light; emitting a second light with said pigment; providing an optical receiver positioned substantially perpendicular to said reference indication such that said optical receiver receives photons of said second light, and such that a substantial portion of said first light is reflected away from said optical receiver after striking said reference indication; measuring via said optical receiver a first light intensity of said second light at a first time; measuring via said optical receiver a second light intensity of said second light at second time; calculating a change in light intensity from said first time to said second time; and comparing said change in light intensity to a predetermined value to determine if said product is authorized product. - View Dependent Claims (12, 13, 14, 15)
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Specification