Larry Todd Biggs

Title: Innovations by Larry Todd Biggs

Introduction

Larry Todd Biggs is an accomplished inventor based in Queen Creek, AZ (US). He holds a total of four patents, showcasing his expertise in the field of security features utilizing advanced technology. His innovative work focuses on enhancing authentication processes through the use of printed LEDs and wavelength conversion materials.

Latest Patents

One of Biggs' latest patents involves a security feature that employs printed LEDs and a wavelength conversion layer. In this embodiment, a printed security mark consists of a random arrangement of printed LEDs and a wavelength conversion layer. During the fabrication of the mark, the LEDs are energized, creating a unique dot pattern that is converted into a digital first code and stored in a database. The emitted spectrum versus intensity and persistence of the wavelength conversion layer is also encoded in this first code. This mark can be applied to various objects such as credit cards, casino chips, banknotes, and passports for authentication purposes. To authenticate the mark, the LEDs are energized, and the dot pattern, spectrum versus intensity, and persistence are compared to the first code stored in the database. A match indicates successful authentication.

Another significant patent by Biggs focuses on printed LEDs and wavelength conversion areas on objects to provide an optical security feature. In this case, an authentication area on a portable object, such as a credit card or casino chip, comprises a random arrangement of printed LEDs and a wavelength conversion layer. When the LEDs are energized during the authentication process, the emitted spectrum and/or persistence of the wavelength conversion layer is detected and encoded in a first code, which is then compared to valid codes stored in the database. If a match is found, the object is authenticated. The LED power may be remotely inductively coupled, allowing the LEDs to flash while the wavelength conversion layer emission decays during optical detection. The flash of blue LED light may be emitted from the edges of the object, acting as a light guide and providing optical feedback to the user that the object is being authenticated.

Career Highlights

Larry Todd Biggs is currently associated with Nthdegree Technologies Worldwide Inc., where he continues to innovate and develop cutting-edge security solutions. His work has significantly contributed to advancements in authentication technology.

Collaborations

Biggs has collaborated with notable coworkers, including Steven B. Roach and Richard A. Blanchard, who have also played a role in the development of innovative technologies.