Company Filing History:
Years Active: 1997
Title: The Innovations of Donald E Harding
Introduction
Donald E Harding is a notable inventor based in Downingtown, PA (US). He has made significant contributions to the field of computer systems through his innovative designs and patents. His work primarily focuses on enhancing communication bus systems, which are crucial for efficient data transfer in computing environments.
Latest Patents
One of Harding's key patents is the "Bus Grant Overlap Circuit." This invention employs two delayed bus clock signals and timer logic to minimize the dead bus time that occurs between consecutive bus drivers. It provides additional protection against multiple, simultaneous bus drivers for a communications bus in a computer system. The circuit utilizes skewed enable and disable clock signals based on an original bus clock feed, employing combinational logic to set a transceiver enable line when control of the bus is granted for bus transfers. The bus transfers remain enabled through a feedback path as long as a bus grant signal is active. When the last cycle of the bus transfer occurs, or if a bus transfer error occurs, the transceiver enable line goes inactive, allowing other components coupled to the bus to gain control. Test mode and bus transfer status lines provide further mechanisms for controlling bus transfer operation.
Career Highlights
Donald E Harding is associated with Unisys Corporation, where he has contributed to various projects and innovations. His work has been instrumental in advancing the technology used in communication buses, which are vital for modern computing systems.
Collaborations
Throughout his career, Harding has collaborated with notable colleagues such as Paul A Laberge and Gregory B Wiedenman. These collaborations have fostered an environment of innovation and have led to the development of advanced technologies in the field.
Conclusion
Donald E Harding's contributions to the field of computer systems through his patent on the Bus Grant Overlap Circuit exemplify his innovative spirit and technical expertise. His work continues to influence the efficiency of data transfer in computing environments.