Company Filing History:
7 out of 143 
2 out of 2 
2 out of 8 
Years Active: 1989-2019
Title: David L Hershberger: Innovator in Radio Transmission Technology
Introduction
David L Hershberger is a prominent inventor based in Nevada City, California, known for his significant contributions to radio transmission technology. With a total of 13 patents to his name, Hershberger has established himself as a key figure in the field of communication systems through innovative design and engineering.
Latest Patents
One of Hershberger's latest patents is a sophisticated radio transmitter system and method. This invention features a transmitter that derives a carrier frequency modulated by an input, coupled with an electrically short antenna system. Importantly, it includes a matching network between the transmitter and the antenna system, consisting of primary and secondary circuits and magnetic or capacitive coupling. The magnetic coupling is achieved via an air core transformer with two windings integrated into the primary and secondary circuits. The design ensures that the matching network has a voltage versus frequency response with at least two horns spaced apart, providing a pass band approximately equal to the modulation bandwidth. This innovation enhances the efficiency and effectiveness of radio transmissions.
Career Highlights
Throughout his career, Hershberger has been associated with notable companies in the technology sector, including the Grass Valley Group, Inc. and ADC Broadband Wireless Group, Inc. His work in these organizations has significantly influenced advancements in wireless communication technologies and laid the groundwork for his patented inventions.
Collaborations
David L Hershberger has collaborated with several industry professionals, including coworkers Daniel L Dickey and Leon J Stanger. These partnerships have fostered a creative environment that has led to innovative approaches in his projects and patents.
Conclusion
David L Hershberger's contributions to radio transmission technology demonstrate his innovative spirit and dedication as an inventor. His patented systems and methodologies continue to impact the field, reflecting the dynamic nature of technology advancement and his role as a key player in the industry.