Xiaoquin Sun

Title: Innovations of Inventor Xiaoquin Sun

Introduction

Xiaoquin Sun is a notable inventor based in Plainsboro, NJ (US). He has made significant contributions to the field of audio and speech signal processing. With a total of 2 patents, his work has advanced the technology used in communication devices.

Latest Patents

One of his latest patents is titled "Scalable and embedded codec for speech and audio signals." This invention discloses a system and method for processing audio and speech signals, providing compatibility across various communication devices that operate at different sampling frequencies and bit rates. The analyzer within the system divides the input signal into different portions, ensuring that at least one portion carries sufficient information for intelligible reconstruction of the input signal. Additionally, the analyzer encodes separate information about other portions of the signal in an embedded manner, facilitating a smooth transition from low bit-rate to high bit-rate applications. This innovation allows communication devices operating at different sampling rates and bit rates to extract corresponding information from the output bit stream of the analyzer. The embedded information generally relates to separate parameters of the input signal or additional resolution in the transmission of original signal parameters. Non-linear techniques for enhancing the overall performance of the system are also disclosed. Furthermore, a novel method for improving the quantization of signal parameters is introduced. In specific embodiments, the input signal is processed in two or more modes depending on the state of the signal in a frame. When the signal is determined to be in a transition state, the encoder provides phase information about N sinusoids, which the decoder uses to enhance the quality of the output signal at low bit rates.

Career Highlights

Xiaoquin Sun has worked with prominent companies such as Lucent Technologies Inc. and Alcatel Lucent. His experience in these organizations has contributed to his expertise in the field of audio and speech signal processing.

Collaborations

Some of his notable coworkers include Joseph Gerard Aguilar and David Anthony Campana.

Conclusion

Xiaoquin Sun's innovations in audio and speech signal processing have made a significant impact on communication technology. His patents reflect a deep understanding of the complexities involved in signal processing, showcasing his contributions to the field.