This inventor holds 3 USPTO granted patents. Top assignee: Hewlett-Packard Company. Active years: 1991-1994.
Company Filing History:
Years Active: 1991-1994
Title: The Innovations of Darrell B Johnsrud
Introduction
Darrell B Johnsrud is a notable inventor based in Loveland, Colorado. He has made significant contributions to the field of electronics, particularly in the area of printed circuit board testing. With a total of 3 patents to his name, Johnsrud's work has had a lasting impact on the industry.
Latest Patents
One of Johnsrud's latest patents is a method for generating functional tests for printed circuit boards. This innovative method automatically generates tests for clusters of elements that can be tested together as a functional unit. By utilizing pattern matching with pre-defined cluster models, the method streamlines the testing process. It begins with analyzing the electrical description of the printed circuit board to identify clusters that match the models. Once a match is found, a generic test routine is retrieved to generate a functional test for the identified cluster.
Another significant patent is a method for selectively conditioning integrated circuit outputs. This method automatically generates in-circuit board tests for interconnected digital devices, providing conditioning only to those devices that require it. The process involves flagging devices that need conditioning in a device models library and determining which outputs should be conditioned prior to testing. This targeted approach enhances the efficiency of the testing process and minimizes interference from problem devices.
Career Highlights
Darrell B Johnsrud has had a distinguished career at Hewlett-Packard Company, where he has applied his expertise in electronics and testing methodologies. His innovative approaches have contributed to the advancement of testing technologies in the industry.
Collaborations
Throughout his career, Johnsrud has collaborated with several talented individuals, including Carroll E Morris, Jr. and Robert E Balliew. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Darrell B Johnsrud's contributions to the field of electronics and his innovative patents have significantly advanced the testing of printed circuit boards. His work continues to influence the industry, showcasing the importance of innovation in technology.