Location History:
- San Diego, CA (US) (1989)
- Great Falls, MT (US) (1991)
Company Filing History:
Years Active: 1989-1991
Title: Innovations of James A. Donahue
Introduction
James A. Donahue is a notable inventor based in Great Falls, MT (US). He has made significant contributions to the field of technology, particularly in the area of communication systems. With a total of 2 patents, his work showcases innovative solutions that enhance data transfer and signal processing.
Latest Patents
One of his latest patents is the "High Speed CMOS Backpanel Transceiver." This invention addresses the challenges in high-speed complementary metal-oxide-semiconductor (CMOS) inter-integrated circuit (IC) chip communication systems. By defining minimum and maximum bus voltages that lie between CMOS logic levels, the invention reduces transmission line voltage swings, thereby lowering bus transition and data transfer times. The system is versatile and does not rely on typical emitter-coupled logic (ECL) levels. The transceivers interface between IC chips and the backpanel, transmitting data in a reduced logic level range on a pre-charged transmission line, while converting data back to CMOS levels.
Another significant patent is the "Signal Edge Trimmer Circuit." This MOS circuit is designed for trimming a digital pulse signal by delaying the rising edge of the pulse signal for a predetermined period while allowing the falling edge to pass without delay. The circuit includes two MOS output transistors and a signal buffer, which has multiple stages for delaying the pulse signal. This innovative design ensures that the rising edge is delayed, while the falling edge remains unaffected.
Career Highlights
James A. Donahue is currently employed at NCR Corporation, where he continues to develop cutting-edge technologies. His work has had a profound impact on the efficiency and effectiveness of communication systems.
Collaborations
Throughout his career, Donahue has collaborated with talented individuals such as Ikuo J. Sanwo and Donald G. Tipon. These collaborations have contributed to the advancement of his innovative projects.
Conclusion
James A. Donahue's contributions to technology through his patents reflect his dedication to innovation and excellence. His work continues to influence the field of communication systems, showcasing the importance of inventive thinking in solving complex challenges.