This inventor holds 2 USPTO granted patents. Top assignees: Cisco Technology, Inc., National Semiconductor Corporation. Active years: 1999-2008.
Company Filing History:
1 out of 21,297 
1 out of 4,791 
Years Active: 1999-2008
Title: David B. Erickson: Innovator in Circuit Design
Introduction
David B. Erickson is a notable inventor based in Plano, TX (US). He has made significant contributions to the field of circuit design, holding a total of 2 patents. His work focuses on generating test inputs for circuits and enhancing microprocessor functionality.
Latest Patents
One of his latest patents is titled "Generating test input for a circuit." This invention involves initializing a current pseudo-random value at a test input generator that is coupled to a circuit component. The process includes receiving write data from the circuit component and repeating a series of steps to generate the next pseudo-random values as test input. The current pseudo-random value and the write data are retrieved, and a next pseudo-random value is generated based on a specific generation function. This next pseudo-random value is then transferred to the circuit component as the test input.
Another significant patent is "Microprocessor having combined shift and rotate circuit." This invention describes a circuit designed to perform arithmetic operations within a 32-bit architecture. The circuit features a five-stage shift and rotate mechanism that is coupled between two 32-bit buses. It includes various sized shift and rotate circuits that can be selectively enabled to perform a range of operations, enhancing the efficiency of processing different operand sizes.
Career Highlights
David has worked with prominent companies such as National Semiconductor Corporation and Cisco Technology, Inc. His experience in these organizations has contributed to his expertise in circuit design and innovation.
Collaborations
Throughout his career, David has collaborated with notable individuals, including Mark W. Hervin and Marvin Wayne Martinez, Jr. These collaborations have further enriched his work and contributions to the field.
Conclusion
David B. Erickson is a distinguished inventor whose work in circuit design has led to valuable patents and advancements in technology. His contributions continue to influence the industry and inspire future innovations.