Producing a microtag identifier
A system for producing rugate tags comprises a processor and an etcher. The processor is configured to determine an identifying data value. The etcher is for producing an identifier. The identifier comprises a rugate phase tag. The rugate phase tag encodes the identifying data value at least in part using a calculated rugate phase information.
1. A system for producing an identifier, comprising:
a processor configured to determine an identifying data value; and
an etcher for producing an identifier comprising a rugate phase tag, wherein the identifier is identified using the identifying data value, and wherein the rugate phase tag encodes the identifying data value at least in part using a calculated rugate phase information.
2. A system as in claim 1 , wherein the identifying data value includes an error correction code data.
3. A system as in claim 1 , wherein the identifying data value comprises a digital signature value.
4. A system as in claim 1 , wherein the identifying data value includes a channel code data.
5. A system as in claim 1 , wherein the calculated phase information is used to generate waveforms that drive the etcher to produce the identifier.
6. A system as in claim 1 , wherein the identifier is added to an object for identification.
7. A system as in claim 6 , wherein the identifier identifies an object by being optically read.
8. A system as in claim 7 , wherein optically reading comprises detecting a reflectance spectrum.
9. A system as in claim 6 , wherein optically comprises optically reading using one or more of the following: reading using visible wavelengths, reading using infrared wavelengths, or reading using ultraviolet wavelengths.
10. A method for producing an identifier, comprising:
determining an identifying data value; and
producing an identifier comprising a rugate phase tag, wherein the identifier is identified using the identifying data value, and wherein the rugate phase tag encodes the identifying data value at least in part using a calculated rugate phase information.
11. A method as in claim 10 , wherein the identifying data value includes an error correction code data.
12. A method as in claim 10 , wherein the identifying data value comprises a digital signature value.
13. A method as in claim 10 , wherein the identifying data value includes a channel code data.
14. A method as in claim 10 , wherein the calculated phase information is used to generate waveforms that drive the etcher to produce the identifier.
15. A method as in claim 10 , wherein the identifier is added to an object for identification.
16. A method as in claim 15 , wherein the identifier identifies an object by being optically read.
17. A method as in claim 16 , wherein optically reading comprises detecting a reflectance spectrum.
18. A method as in claim 15 , wherein optically comprises optically reading using one or more of the following: reading using visible wavelengths, reading using infrared wavelengths, or reading using ultraviolet wavelengths.
19. A system for reading an identifier, comprising:
a reader for reading an identifying data value of an identifier, wherein the identifier comprises a rugate phase tag, and wherein the rugate phase tag encodes the identifying data value at least in part using a calculated rugate phase information; and
a processor configured to determine an identifying data value.
20. A system as in claim 19 , wherein the identifying data value includes an error correction code data.
21. A system as in claim 19 , wherein the identifying data value comprises a digital signature value.
22. A system as in claim 19 , wherein the identifying data value includes a channel code data.
23. A system as in claim 19 , wherein the calculated phase information is used to generate waveforms that drive the etcher to produce the identifier.
24. A system as in claim 19 , wherein the identifier is added to an object for identification.
25. A system as in claim 19 , wherein reading comprises detecting a reflectance spectrum.
26. A system as in claim 19 , wherein reading comprises reading using one or more of the following: reading using visible wavelengths, reading using infrared wavelengths, or reading using ultraviolet wavelengths.
27. A method for reading an identifier, comprising:
reading an identifying data value of an identifier, wherein the identifier comprises a rugate phase tag, and wherein the rugate phase tag encodes the identifying data value at least in part using a calculated rugate phase information; and
determining the identifier using the identifying data value.
28. A method as in claim 27 , wherein the identifying data value includes an error correction code data.
29. A method as in claim 27 , wherein the identifying data value comprises a digital signature value.
30. A method as in claim 27 , wherein the identifying data value includes a channel code data.
31. A method as in claim 27 , wherein the calculated phase information is used to generate waveforms that drive the etcher to produce the identifier.
32. A method as in claim 27 , wherein the identifier is added to an object for identification.
33. A method as in claim 32 , wherein the identifier identifies an object by being optically read.
34. A method as in claim 33 , wherein optically reading comprises detecting a reflectance spectrum.
35. A method as in claim 32 , wherein optically comprises optically reading using one or more of the following: reading using visible wavelengths, reading using infrared wavelengths, or reading using ultraviolet wavelengths.