John Paul Buchanan

Title: John Paul Buchanan: Innovator in Servo Systems

Introduction

John Paul Buchanan is a notable inventor based in Monrovia, CA (US). He has made significant contributions to the field of servo systems, particularly in applications for large machine tools. His innovative approach has led to the development of a unique patent that enhances the efficiency and precision of computerized numerical control systems.

Latest Patents

Buchanan holds a patent for a "Servo system employing digital components." This invention is particularly well-suited for use in computerized numerical control systems for large machine tools. The system features a plurality of axis-controlling servo circuits managed by a single computerized axis controller. As each controlled axis moves, the output from an attached resolver is digitized to generate a digital position feedback signal. This signal is then compared to the desired position in the computer. The resultant error signal is converted to an analog voltage to control the axis motion. Additionally, a digital clock and counter drive two digital-to-analog converters to create the two resolver inputs, supplying timing signals to the computer and synchronizing the entire system.

Career Highlights

Buchanan has had a distinguished career, working at McDonnell Douglas Corporation, where he has applied his expertise in servo systems. His work has been instrumental in advancing the capabilities of machine tools, making them more efficient and reliable.

Collaborations

Throughout his career, Buchanan has collaborated with notable colleagues, including Stanley G. Froyd and Raymond C. Ue. These partnerships have contributed to the development of innovative technologies in the field.

Conclusion

John Paul Buchanan's contributions to servo systems and computerized numerical control technology have made a lasting impact on the industry. His patent reflects a commitment to innovation and excellence in engineering.