Tianfang Liu

Title: Innovations of Tianfang Liu

Introduction

Tianfang Liu is a notable inventor based in DeKalb, IL (US). He has made significant contributions to the field of echo cancellation technology. With a total of 4 patents to his name, Liu's work has had a considerable impact on improving communication systems.

Latest Patents

One of Liu's latest patents is an echo canceller featuring an improved non-linear processor. This innovative processor includes a center clipping digital filter that receives an echo compensated signal. The non-linear processor generates a center clipped output signal with non-linear thresholds at values of +T and -T. The value of T is dynamically dependent on echo return loss measurements. To enhance the processor's reliability, it inhibits the dynamic setting of the T value during double-talk conditions. Additionally, the processor can lock the echo return loss measurement value after a series of consecutive measurements that fall within a specific range. This locking mechanism further minimizes the processor's vulnerability to corruption from double-talk conditions.

Career Highlights

Tianfang Liu is currently employed at Tellabs Operations, Inc., where he continues to develop innovative solutions in telecommunications. His expertise in echo cancellation technology has positioned him as a key contributor in his field.

Collaborations

Liu collaborates with various professionals, including his coworker David S. Farrell, to advance their projects and share insights in their area of expertise.

Conclusion

Tianfang Liu's contributions to echo cancellation technology through his patents and work at Tellabs Operations, Inc. highlight his role as an influential inventor in the telecommunications industry. His innovative approaches continue to shape the future of communication systems.