Company Filing History:
9 out of 1,246 
2 out of 13 Years Active: 1976-1994
Title: The Innovative Contributions of Bernard Friedland
Introduction
Bernard Friedland is a notable inventor based in West Orange, New Jersey, with a remarkable portfolio of 11 patents. His work primarily focuses on advancements in gyroscopic technology and measurement systems, showcasing his expertise in engineering and innovation.
Latest Patents
Friedland's latest patents include a "System for Substantially Eliminating Lock-In in a Ring Laser Gyroscope." This invention features a ring laser gyro system with at least one fixed mirror and two movable mirror assemblies. The system is designed to cause a pair of laser beams to counter-rotate, incorporating amplitude control circuits and a phase control circuit. This configuration allows the movable mirror assemblies to oscillate sinusoidally at the same amplitude and frequency, but 180 degrees out of phase with one another, effectively eliminating lock-in.
Another significant patent is the "System for Measuring the Position of a Vibrating Object." This system measures the position of a vibrating object relative to a reference point, such as the block of a ring-laser gyroscope relative to its case. It utilizes a continuous velocity sensor that is noisy and subject to drift, along with a precise position crossing detector. A mixer-filter combines data from both sensors, leveraging the velocity sensor's continuous reading capability to interpolate data between the moments when the position crossing detector indicates that the object crosses through zero. The mixer-filter is implemented as an extended Kalman filter, providing an optimal estimate of the vibrating object's position.
Career Highlights
Throughout his career, Friedland has made significant contributions to the field of navigation and guidance systems. He has worked with prominent companies, including the Singer Company and Kearfott Guidance & Navigation Corporation, where he applied his innovative ideas to real-world applications.
Collaborations
Friedland has collaborated with notable individuals in his field, including Bo H. Ljung and Maurice Frank Hutton. These partnerships have further enriched his work and contributed to the development of advanced technologies.
Conclusion
Bernard Friedland's contributions to innovation and technology, particularly in gyroscopic systems and measurement techniques, have made a lasting impact in his field. His patents reflect a deep understanding of engineering principles and a commitment to advancing technology.