Company Filing History:
3 out of 3 
2 out of 585 
1 out of 1 Years Active: 1981-2001
Title: Innovations of Lawrence W. Hill
Introduction
Lawrence W. Hill is a notable inventor based in Arlington, MA, with a remarkable portfolio of nine patents. His work primarily focuses on enhancing security systems and communication technologies through innovative approaches.
Latest Patents
One of his latest patents is a personal identification system that utilizes multiple parameters with low cross-correlation. This system is designed for security and various pattern matching applications, providing accurate recognition of known individuals. It employs a large number of inexpensive sensors to create a profile of a person seeking access to controlled spaces. The sensors measure various statistically independent characteristics, such as height, weight, stride, voice timbre, and the time taken to perform specific functions. Despite the low resolution of individual measurements, the system effectively searches a database of patterns related to admissible individuals, minimizing both false negative and false positive errors. This innovative approach allows for a cost-effective implementation compared to traditional biometric systems.
Another significant patent involves frequency hopping time-diversity communications systems and transceivers. This system utilizes adaptive frequency-hopped spread spectrum modulation to communicate over AC power lines and other noisy channels. It features a modulation structure where data packets are transmitted using frequency-shift keying (FSK) modulation. An error coding system provides real-time feedback on reception quality, enabling adjustments to optimize communication error rates. The system is designed for synchronization and network management, allowing for efficient communication across various channels.
Career Highlights
Throughout his career, Lawrence W. Hill has contributed to several companies, including Comsource Systems and Gould Inc. His work has significantly impacted the fields of security and communication technologies.
Collaborations
He has collaborated with notable individuals such as Frederick Williams Sarles and Salvatore R. Provanzano, further enhancing his innovative contributions.
Conclusion
Lawrence W. Hill's inventive spirit and dedication to advancing technology are evident in his numerous patents and career achievements. His work continues to influence the fields of security and communication, showcasing the importance of innovation in today's world.