Location History:
- San Francisco, CA (US) (2003 - 2006)
- Cambridge, MA (US) (2006 - 2010)
Company Filing History:
2 out of 244 
1 out of 5 
1 out of 832,761 Years Active: 2003-2010
Title: Innovations and Contributions of Inventor Stefano Casadei
Introduction
Stefano Casadei is a notable inventor based in Cambridge, MA (US). He has made significant contributions to the field of pattern recognition and signal processing. With a total of 4 patents, his work has advanced the understanding and application of complex systems in technology.
Latest Patents
One of his latest patents is titled "Hierarchical method and system for pattern recognition and edge detection." This invention utilizes an ensemble of reference patterns to represent possible instances of the models to be recognized. It constructs a hierarchy of estimators to simplify and enhance the recognition of the models of interest. The method approximates complex reference patterns with linear compositions of simpler patterns and fragments complex patterns into local patterns. This fragmentation allows for minimal interference between local patterns, making linearization methods applicable. The invention also generates a hierarchy of reference descriptors during an offline stage, which are used for the design and construction of model estimators.
Another significant patent is the "System and method to estimate the location of a receiver in a multi-path environment." This invention determines the location of a receiver by correlating the received signal with reference signals associated with transmitting sources. The method processes each correlation function to derive various types of signal constraints, such as probability densities and uncertainty regions. These constraints are then transformed into unified receiver constraints, which may incorporate a-priori constraints. The invention achieves faster and more sensitive signal acquisition and higher location accuracy in multipath environments.
Career Highlights
Stefano Casadei has worked with several companies, including Sirf Technology, Inc. His experience in these organizations has contributed to his expertise in developing innovative solutions in technology.
Collaborations
Throughout his career, Casadei has collaborated with notable individuals such as Jesse Stone and Wallace Mann. These collaborations have likely enriched his work and led to further advancements in his field.
Conclusion
Stefano Casadei's contributions to innovations in pattern recognition and signal processing demonstrate his significant impact on technology. His patents reflect a deep understanding of complex systems and their applications in real-world scenarios.