Stephen M Fortescue

Title: **Stephen M. Fortescue: Innovator in Motor Control Systems**

Introduction

Stephen M. Fortescue, an accomplished inventor based in Northridge, CA, has made significant contributions to the field of motor control systems. With a total of four patents to his name, Fortescue is recognized for his innovative designs that enhance the precision and performance of various applications, particularly in high-speed printing technology.

Latest Patents

Among Fortescue's latest inventions is a **High Performance Incremental Motion System Using a Closed Loop Stepping**. This advanced motor control system is tailored for high-accuracy incremental motion applications, such as paper feeding in high-speed printers. The patented system employs a stepping motor, which operates in dual modes based on its positional requirements. For the majority of the movement, it functions as a DC brushless motor, utilizing a closed-loop control that integrates velocity commands from a microprocessor. This innovative approach incorporates both position and velocity feedback, ensuring high precision in movement. As the motor approaches its targeted position, it switches operation to a step motor, enabling it to hold its position accurately.

Another notable patent is the **Encoder Tracking Digitizer Having Stable Output**. This device receives sine and cosine signals from encoders, converting them into digital outputs that represent phase angles. It utilizes a counter to create a variable reference angle, with memories that produce digital sine and cosine signals. This meticulous process allows for accurate determination of the direction between the encoder's phase angle and the counter's angle, thus facilitating precise motor control.

Career Highlights

Throughout his career at Data Products Corporation, Fortescue has demonstrated an exceptional capacity for innovation. His work primarily revolves around enhancing control systems, particularly in high-paced environments where accuracy is critical. His inventions illustrate a deep understanding of motor dynamics and control theories, which have had significant impacts on improving the efficiency of printing operations.

Collaborations

Stephen M. Fortescue has collaborated with notable colleagues such as Gaston A. Palombo and Timothy A. Ferris. Together, they have contributed to the development of advanced technologies that push the boundaries of expertise in their field. Fortescue's collaborative efforts highlight the importance of teamwork in achieving groundbreaking innovations.

Conclusion

In summary, Stephen M. Fortescue stands out as a pioneering inventor in the realm of motor control systems. His established patents reflect a commitment to advancing technology and enhancing operational efficiencies. As the industry evolves, Fortescue's contributions will undoubtedly continue to influence future developments in the field of precision motion control.