Ying Li

Title: Ying Li: Innovator in Acoustic Technology

Introduction

Ying Li is a notable inventor based in Chandler, AZ (US), recognized for his contributions to acoustic technology. He holds a total of 3 patents, showcasing his innovative approach to solving complex problems in the field.

Latest Patents

One of Ying Li's latest patents is focused on echo path change monitoring in an acoustic echo canceler. This invention provides a monitoring process that removes echo from a microphone signal using an adaptive echo path model. The model generates an echo estimate from a playback signal, allowing the acoustic echo canceler to produce an echo-canceled output signal. The path change detector analyzes the microphone signal, echo estimate, and output signal to determine the rate of change of statistical values. If this rate exceeds a threshold, it generates an indication to adjust the adaptive echo path model, enhancing responsiveness to changes in the acoustic environment.

Another significant patent is related to multi-microphone human talker detection. This invention addresses the need to differentiate between human and artificial talkers, which is crucial for automatic speaker verification applications. By monitoring the variation of the inter-mic frequency-dependent phase profile over time, this method can effectively identify human talkers. The anti-spoofing countermeasure developed through this patent can be integrated into various electronic devices, including smart home devices, cellular phones, tablets, and personal computers.

Career Highlights

Ying Li has worked with prominent companies such as Cirrus Logic Inc. and Cirrus Logic International Semiconductor Limited. His experience in these organizations has contributed to his expertise in acoustic technologies and innovations.

Collaborations

Ying Li has collaborated with notable coworkers, including Seth Suppappola and Narayan Kovvali. Their combined efforts have further advanced the field of acoustic technology.

Conclusion

Ying Li's innovative work in acoustic technology, particularly in echo cancellation and talker detection, highlights his significant contributions to the field. His patents reflect a commitment to enhancing audio processing and security in electronic devices.