Company Filing History:
Years Active: 1977
Title: The Innovative Contributions of David L. MacDougall, Jr.
Introduction
David L. MacDougall, Jr. is a notable inventor based in San Jose, California. He has made significant contributions to the field of magnetic recording technology. His work has led to advancements that enhance the performance of magnetic recording apparatuses.
Latest Patents
David L. MacDougall, Jr. holds a patent for a "Magnetic recording playback circuit." This invention involves a playback circuit designed for use with a magnetic recording transducer. The transducer develops an alternating current readback signal that has alternating positive and negative peaks. The playback circuit includes a differentiator that produces a differentiated signal with first and second polarities, and zero crossings that coincide with the positive and negative peaks. The circuit also features a bidirectional one-shot device, a latch, and an OR gate, all working together to conduct pulses corresponding to the readback signal's peaks.
Career Highlights
David L. MacDougall, Jr. is associated with Shugart Associates, Inc., where he has applied his expertise in magnetic recording technology. His innovative work has contributed to the development of more efficient playback circuits, enhancing the overall functionality of magnetic recording devices.
Conclusion
David L. MacDougall, Jr. is a distinguished inventor whose contributions to magnetic recording technology have made a lasting impact. His patent for a magnetic recording playback circuit exemplifies his innovative spirit and dedication to advancing technology.