Alexis P Bernard

Title: Innovations by Inventor Alexis P Bernard

Introduction

Alexis P Bernard is a notable inventor based in Palisades, CA (US). He has made significant contributions to the field of speech recognition technology. With a total of 5 patents to his name, Bernard continues to push the boundaries of innovation in his area of expertise.

Latest Patents

Among his latest patents is a "Middle-end solution to robust speech recognition." This patent describes a method for performing time and frequency Signal-to-Noise Ratio (SNR) dependent weighting in speech recognition. The process includes estimating the SNR for each period to obtain time and frequency SNR information, calculating the time and frequency weighting, and performing a back and forth weighted time-varying DCT transformation matrix computation. This innovation provides the transformation matrix and the original MFCC feature, which contains SNR information, to a recognizer that includes Viterbi decoding, ultimately enabling weighted Viterbi recognition.

Another significant patent is the "Noise-resistant utterance detector." This invention provides a method and detector for enhancing the robustness of utterance detection in noisy environments. It involves extracting a noise estimate to augment the SNR of the speech signal, inverse filtering the speech signal to focus on its periodic excitation part, and applying spectral reshaping to accentuate the separation between formants.

Career Highlights

Alexis P Bernard is currently employed at Texas Instruments Corporation, where he continues to innovate and develop advanced technologies. His work has had a profound impact on the field of speech recognition, making it more effective and reliable.

Collaborations

Throughout his career, Bernard has collaborated with talented individuals, including Yifan Gong and Lorin Paul Netsch. These collaborations have contributed to the success of his projects and the advancement of technology in his field.

Conclusion

In summary, Alexis P Bernard is a distinguished inventor whose work in speech recognition technology has led to multiple patents and significant advancements. His contributions continue to shape the future of this important field.