Company Filing History:
Years Active: 1990-1991
Title: **John A. De Beule: Innovator in VLSI Technology**
Introduction
John A. De Beule is an accomplished inventor based in Rancho Santa Margarita, California. With a remarkable portfolio of three patents, his work has significantly influenced the field of very large scale integration (VLSI) technology.
Latest Patents
Among his latest innovations, De Beule has developed a patent for **Self-testing circuitry for VLSI units**. This invention introduces an application-specific integrated circuit designed to operate in normal mode while incorporating a built-in self-test feature. The design allows registers to function as multifunction shift registers, forming a shift chain through which data patterns can be shifted. The control circuitry further selects certain shift registers as test pattern generators, enhancing the system's operability for maintenance checks.
Another significant contribution from De Beule is the **Error log system for self-testing in very large scale integrated circuits**. This patent implements registers within a VLSI chip to log both permanent and intermittent errors detected by concurrent error detection circuitry. In cases of fatal errors, the system immobilizes the chip, entering a hold mode to prevent further damage. This functionality not only protects the chip's reliability but also facilitates communication with an external computer for maintenance and error analysis.
Career Highlights
John A. De Beule has honed his expertise while working with Unisys Corporation, where he engages in cutting-edge research and development in VLSI technology. His contributions have been vital in advancing the reliability and functionality of integrated circuits.
Collaborations
Throughout his career, De Beule has collaborated with talented colleagues, including Haluk Katircioglu and Debaditya Mukherjee. These partnerships have fostered innovation and shared expertise, contributing to the successful development of his patents.
Conclusion
John A. De Beule stands out as a key figure in the realm of VLSI technology, with his groundbreaking patents addressing significant challenges in integrated circuit reliability and performance. His dedication to innovation continues to inspire advancements in the field, underlining the importance of creativity and collaboration in technological progress.