Company Filing History:
Years Active: 1994-1997
Title: W Robert Kepley: Innovator in Voice Communication Technologies
Introduction
W Robert Kepley is a notable inventor based in Gaithersburg, MD (US), recognized for his contributions to voice communication technologies. He holds a total of 3 patents, showcasing his innovative spirit and technical expertise in the field.
Latest Patents
One of his latest patents is a voice activity detector for speech signals in variable background noise. This device determines whether received voice signal samples contain speech by deriving parameters that measure short-term time domain characteristics of the input signal. It includes the average signal level and the absolute value of any change in average signal level. The derived parameter values are compared with corresponding thresholds, which are periodically monitored and updated to reflect changes in the level of background noise. This innovation minimizes clipping and false alarms, enhancing communication clarity.
Another significant patent is focused on noise suppression in digital voice communications systems. This technology suppresses noise during pauses and silent periods in conversation while allowing voiced signals to pass freely in a mobile communications system. This improvement enhances the quality of transmitted speech. The noise suppression is designed to allow a low level of noise to pass, providing the presence of the remote speaker without making the line completely silent, which could falsely indicate an interrupted connection. Additionally, the system decreases background noise fractionally when voice is no longer detected, resulting in perceptually improved communication quality.
Career Highlights
Throughout his career, W Robert Kepley has worked with prominent companies such as Hughes Aircraft Company and Hughes Electronics Corporation. His experience in these organizations has contributed significantly to his development as an inventor in the field of voice communication technologies.
Collaborations
He has collaborated with notable coworkers, including Adrian J Morris and Prabhat K Gupta, further enriching his professional journey and contributions to the industry.
Conclusion
W Robert Kepley is a distinguished inventor whose work in voice communication technologies has made a significant impact. His innovative patents and career achievements reflect his dedication to enhancing communication systems.