Stephen L Hary

Title: Innovations of Stephen L Hary

Introduction

Stephen L Hary is a notable inventor based in Dayton, OH (US). He has made significant contributions to the field of digital radio technology, holding a total of 4 patents. His work focuses on enhancing the performance of digital receivers, particularly in complex signal environments.

Latest Patents

One of Hary's latest patents is titled "Digital receiver instantaneous dynamic range enhancement." This invention presents a cost-effective digital radio receiver system that improves instantaneous dynamic range response when receiving simultaneous signals. It also provides a large single signal dynamic range. The innovation utilizes a suppressed zero signal amplitude representation arrangement, which employs a selected number of signal amplitude representing digital bits instead of the entire array of digital output bits from the receiver system's analog to digital converter. Additionally, the patent details a digital apparatus for selecting desired high order bits from the analog to digital converter output. The use of a 'Monobit' and related simplified Fourier transformation radio receivers, as disclosed in previous patents, is preferred for implementing the digital radio receiver circuit in this system.

Another significant patent by Hary is "Kernel function approximation and receiver." This invention features a Fourier transformation arrangement designed for electronic warfare radio receivers. It analyzes the spectral content of brief duration incoming signals from multiple transmitters to determine their signal characteristics. The disclosed arrangement includes approximated Kernel function values positioned in various locations around a real-imaginary coordinate axis origin. The points are displaced from the origin by magnitudes with real and imaginary component lengths that are powers of two, starting from zero. The multiplication involving a power of two component length during Kernel function utilization is preferably achieved through an expanded binary shift multiplication algorithm, rather than a full-fledged digital multiplication algorithm. The patent also includes guiding principles for selecting desirable approximation Kernel function locations.

Career Highlights

Stephen L Hary is currently associated with the United States of America as represented by the Secretary of the Air Force. His work has significantly impacted the field of digital communications and electronic warfare.

Collaborations

Hary has collaborated with notable colleagues, including James B Y Tsui and David M Lin, contributing to advancements in their respective fields.

Conclusion

Stephen L Hary's innovative work in digital radio technology and electronic warfare showcases his expertise and dedication to advancing communication systems. His patents reflect a commitment to enhancing signal processing capabilities in complex environments.