Company Filing History:
7 out of 111 
1 out of 832,891 Years Active: 2009-2012
Title: The Innovations of Ronald Lefever
Introduction
Ronald Lefever is a notable inventor based in Lansdale, PA (US), recognized for his contributions to wireless location systems. With a total of 8 patents to his name, Lefever has made significant advancements in the field of positioning technology.
Latest Patents
One of his latest patents is the Hybrid GNSS and TDOA wireless location system. This invention provides a method and apparatus for position determination using measurements from both Global Positioning System (GPS) receivers and terrestrial-based Uplink Time Difference of Arrival (UTDOA) receivers. The method involves transforming downlink satellite measurements into equivalent UTDOA measurements by computing comparable cross-correlation coefficients and time differences of arrival with respect to a UTDOA reference station. Additionally, the method includes a weighting operation that adjusts the relative weights of the UTDOA and GPS measurements based on theoretical scaling and empirical adjustments. Another significant patent is the Sparsed U-TDOA wireless location networks. This invention utilizes LMUs typically co-located with BTSs to collect radio signaling in both forward and reverse channels. Techniques are employed to compensate for sparse LMU deployments, addressing limitations in uplink demodulation or downlink beacon discovery in certain sections of the U-TDOA service area.
Career Highlights
Throughout his career, Ronald Lefever has worked with various companies, including Trueposition, Inc. His work has focused on enhancing the accuracy and efficiency of wireless location systems, contributing to advancements in navigation and positioning technologies.
Collaborations
Lefever has collaborated with notable individuals in the field, including Robert J Anderson and Rashidus S Mia. These collaborations have further enriched his work and contributed to the development of innovative solutions in wireless technology.
Conclusion
Ronald Lefever's contributions to the field of wireless location systems through his patents and collaborations highlight his role as a significant inventor. His work continues to influence advancements in positioning technology, making a lasting impact in the industry.