Haohai Sun

Title: **Innovative Mind: Haohai Sun and His Contributions to Audio Technology**

Introduction

Haohai Sun is a prominent inventor residing in Sandvika, Norway, with an impressive portfolio of 18 patents to his name. His work primarily focuses on cutting-edge audio technologies that enhance communication experiences in conference settings and collaborative environments.

Latest Patents

Among Haohai Sun's latest inventions are two notable patents that demonstrate his innovative approach to audio management:

1. **Full-duplex adaptive echo cancellation in a conference endpoint** - This invention describes a system where a loudspeaker is driven by a signal to produce sound, and this sound is simultaneously captured by one or more microphones. The microphone signals are then transformed into both far-field and near-field beam signals. This dual processing enables the system to detect and cancel echo in real-time, outputting either far-field or near-field signals depending on the presence of detected echo.

2. **Directional audio pickup in collaboration endpoints** - This patent involves a microphone array that includes multiple front-facing microphones and secondary microphones located on the device's second surface. It intricately manages sound signals at varying frequencies, ensuring that output signals are generated appropriately based on the signal's frequency, thereby optimizing audio clarity in collaborative settings.

Career Highlights

Haohai Sun is currently associated with Cisco Technology, Inc., where he applies his expertise in audio technologies to develop solutions that enhance user experiences in collaborative communications. His inventive spirit and technical prowess have cemented his reputation as a leading innovator in the field.

Collaborations

Throughout his career, Sun has collaborated with talented professionals, including coworkers Johan Ludvig Nielsen and Espen Moberg. These collaborations have fostered a creative environment that nurtures innovation and drives the development of groundbreaking audio technologies.

Conclusion

Haohai Sun's contributions to the field of audio technology through his numerous patents not only highlight his ingenuity but also significantly advance the capabilities of collaborative communication tools. His work at Cisco Technology, Inc. continues to pave the way for future innovations that enhance the way people interact and communicate in both personal and professional settings.