Xiaobo Pi

Title: Innovations of Xiaobo Pi in Speech Recognition Technology

Introduction

Xiaobo Pi is a prominent inventor based in Beijing, China. He has made significant contributions to the field of speech recognition technology, holding a total of 6 patents. His work focuses on enhancing interactive voice response systems and improving speech recognition accuracy.

Latest Patents

One of Xiaobo Pi's latest patents is titled "Voice barge-in in telephony speech recognition." This patent describes an interactive voice response system that supports full duplex data transfer. The system allows for the playing of a voice prompt to a user while simultaneously listening for voice barge-in from the user. It includes a speech detection module that utilizes various criteria, such as frame energy magnitude and duration thresholds, to detect speech. Additionally, the system features an automatic speech recognition engine that recognizes segments of speech. A feature extraction module is employed to subtract a prompt echo spectrum from an echo-dirtied speech spectrum recorded by the system. To enhance spectrum subtraction, an estimation of the time delay between the echo-dirtied speech and the prompt echo is also performed.

Another notable patent is focused on "Audio-visual feature fusion and support vector machine useful for continuous speech recognition." This method describes several embodiments that apply support vector machine analysis to the mouth region. By accurately determining lip position and using it in conjunction with synchronous or asynchronous audio data, the probabilities of successful speech recognition are significantly enhanced.

Career Highlights

Xiaobo Pi is currently employed at Intel Corporation, where he continues to innovate in the field of speech recognition. His work has been instrumental in advancing technologies that improve user interaction with telephony systems.

Collaborations

Throughout his career, Xiaobo Pi has collaborated with notable colleagues, including Ying Jia and Ara Victor Nefian. These collaborations have contributed to the development of cutting-edge technologies in speech recognition.

Conclusion

Xiaobo Pi's contributions to speech recognition technology have made a significant impact on the industry. His innovative patents and work at Intel Corporation highlight his dedication to advancing this field. His efforts continue to shape the future of interactive voice response systems and speech recognition accuracy.