Robert Fenton Gary is an American inventor and author known for his work in Photon-DSP (Photonics and Digital Signal Processing) technologies. He holds U.S. Patent No. 10,176,661 B2, titled “Method to Authenticate Value Documents or Items,” granted on January 8, 2019. Desertcart+2Amazon+2Amazon+2Goodreads+9Desertcart+9Goodreads+9
Overview of the Patent
The patent introduces a method for authenticating items like currency, legal documents, or valuable goods using a combination of fluorescent taggants and digital signal processing. The process involves:Amazon+2Justia Patents+2Desertcart+2Desertcart
- Applying fluorescent materials that emit light across a spectral range of 200 nm to 1500 nm.Justia Patents
- Utilizing a Programmable Finite Impulse Transform (FIT) algorithm to process these emissions.Amazon+3Justia Patents+3Justia Patents+3
- Employing a Programmable Finite Impulse Response (FIR) filter to create multiple passbands, effectively segmenting the spectral data.Justia Patents+2Justia Patents+2Justia Patents+2
This technique generates unique spectral signatures for each item, enabling precise authentication and reducing the risk of counterfeiting.
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