Company Filing History:
Years Active: 1999
Title: Leon Chaparian: Innovator in Laser Diode Technology
Introduction
Leon Chaparian is a notable inventor based in Waldwick, NJ (US). He has made significant contributions to the field of laser technology, holding 2 patents that showcase his innovative approach to driving laser diodes and transmitting electrical signals.
Latest Patents
Chaparian's latest patents include "Methods and apparatus for driving a laser diode" and "Apparatus and methods for transmitting electrical signals indicative of." The first patent describes a circuit and method for driving a laser diode with high stability. It generates a steady-state current to drive the laser diode and utilizes a dynamic feedback signal to maintain constant power mode. The design incorporates an operational amplifier with a transistor and an RC circuit in the feedback loop, allowing for precise control of the laser diode output current amplitude. Additionally, a longevity signal indicates whether the laser diode current is excessive.
The second patent focuses on a system for transmitting analog signals derived from optical signal intensity in noisy environments. It employs a photodetector that minimizes capacitive effects and converts the optical signal to voltage through a transconductance stage. The voltage signal is then transmitted over a length of cable using a buffer amplifier, ensuring low impedance output matched to the cable's characteristic impedance. This system includes circuits for processing the high-gain amplifier signal, which helps discriminate valid pulses from invalid ones, thereby enhancing signal quality.
Career Highlights
Leon Chaparian is currently associated with Bayer Corporation, where he continues to innovate and develop advanced technologies. His work has significantly impacted the field of optical signal processing and laser diode applications.
Collaborations
Throughout his career, Chaparian has collaborated with notable colleagues, including Luigi Cantatore and Joseph Irish. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their respective fields.
Conclusion
Leon Chaparian's contributions to laser technology and signal processing exemplify the spirit of innovation. His patents reflect a deep understanding of complex systems and a commitment to advancing technology for practical applications.