David W Graham

Title: Biography of Inventor David W Graham

Introduction

David W Graham is a notable inventor based in Morgantown, West Virginia. He holds a total of 8 patents, showcasing his contributions to the field of technology and innovation. His work primarily focuses on advancements in audio processing and sensor networks.

Latest Patents

One of his latest patents is for an analog voice activity detection system. This invention involves an analog processing portion that receives audio signals from a microphone, converting them into sub-band signals. It estimates energy statistic values, such as the Signal-to-Noise Ratio (SNR), for each sub-band signal. A classification element then classifies these values, generating a wakeup signal when voice activity is detected, which is particularly useful for battery-powered, always-listening audio applications. Another significant patent is for selective wakeup of digital sensing and processing systems using reconfigurable analog circuits. This invention provides a sensor network equipped with re-programmable and/or reconfigurable analog circuitry to monitor data and generate wakeup signals in response to defined events.

Career Highlights

David has had a distinguished career, working at West Virginia University, where he has contributed to various research projects and technological advancements. His expertise in analog processing and sensor technology has made a significant impact in his field.

Collaborations

Throughout his career, David has collaborated with notable colleagues, including Brandon David Rumberg and Vin