Company Filing History:
Years Active: 1976-1980
Title: Harold Garth Nash: Innovator in Digital Signal Processing
Introduction
Harold Garth Nash is a notable inventor based in Tempe, AZ (US), recognized for his contributions to digital signal processing. With a total of 8 patents, Nash has made significant advancements in the field, particularly in the development of innovative filtering techniques and digital signal manipulation.
Latest Patents
One of Nash's latest patents is a low pass digital averaging filter. This invention discloses a circuit designed to extract low frequency signal components from a composite signal using a digital averaging technique. The circuit employs an analog to digital converter to receive a composite analog signal, which is then sampled during periodic intervals. The digital output is processed through an adder/subtractor circuit, where it is combined with previously stored average signals to filter out higher frequency components effectively.
Another significant patent involves digital apparatus that approximates the multiplication of an analog signal by a sine wave. This method utilizes digital techniques to convert an analog signal into a digital representation, which includes a binary sign bit and multiple binary magnitude bits. The sign bit is selectively complemented by an inverting logic gate, controlled by a square wave signal, allowing for the multiplication of the digital representation by +1 or -1. This innovative approach enhances the detection and processing of analog signals.
Career Highlights
Harold Garth Nash has had a distinguished career, primarily working with Motorola Corporation. His work has focused on advancing digital signal processing technologies, contributing to the development of efficient and effective methods for signal manipulation.
Collaborations
Throughout his career, Nash has collaborated with notable colleagues, including John R. Linford and Gene A. Schriber. These collaborations have fostered innovation and have led to the successful development of several patents in the field.
Conclusion
Harold Garth Nash's contributions to digital signal processing through his patents and collaborations have significantly impacted the industry. His innovative approaches continue to influence the development of advanced signal processing technologies.
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