Daniel H Fitzsimmons

Title: The Innovative Contributions of Daniel H Fitzsimmons

Introduction

Daniel H Fitzsimmons is a notable inventor based in Dubuque, IA (US). He has made significant contributions to the field of wireless communication technology. With a total of 3 patents, Fitzsimmons has developed innovative solutions that address critical challenges in restricted environments.

Latest Patents

One of Fitzsimmons' latest patents is titled "Cell phone control and localization for restricted facilities." This invention presents a method and system for controlling cell phones and cellular phone system-based wireless devices in restricted environments, such as prisons. The control system utilizes software-defined radios to mimic ambient wireless signals from nearby cell phone base stations. It produces a multi-protocol beacon set based on the existing wireless environment and a predetermined logic set to ensure complete coverage of all relevant cell phone operating protocols. The system attracts cell phones within the target coverage area, allowing for controlled operation. The cell phone control system can selectively deny or permit calls based on a whitelist/blacklist database and is interfaced with a distributed system of antennas to provide the necessary control over the coverage area.

Another significant patent by Fitzsimmons is "Wireless communication jamming using signal delay technology." This device and method jam wireless communication devices by deriving the jamming signal from the downlink signal of the base station. The signal is processed with a time delay sufficient to prevent the base station receiver from correctly processing the responding uplink signal from the targeted wireless communications device. This jamming device can be utilized by law enforcement and authorized government entities to block the operation of wireless communication devices, such as cell phones, within a designated area.

Career Highlights

Fitzsimmons has worked with various companies throughout his career, including Cellantenna Corporation. His work has focused on developing advanced technologies that enhance communication security and control.

Collaborations

Fitzsimmons has collaborated with notable individuals in the field, including Howard Melamed and Molly M Fitzsimmons. Their combined expertise has contributed to the successful development of innovative solutions in wireless communication.

Conclusion

Daniel H Fitzsimmons is a distinguished inventor whose work in wireless communication technology has made a significant impact. His patents reflect a commitment to addressing the challenges of communication in restricted environments. Fitzsimmons' contributions continue to influence the field and pave the way for future innovations.