Dominic Chan

Title: Dominic Chan and Background Noise Contrast Reduction for Mobile Handover

Introduction

Dominic Chan is an inventor associated with Motorola Corporation in Hong Kong, CN. His patent work addresses a technical challenge in mobile communications: maintaining a smooth transition in background noise when a call moves between communication systems that use different speech codecs. The available information lists 1 patent for Chan.

Latest Patents

Chan’s listed patent is titled “Background Noise Contrast Reduction for Handovers Involving a Change of Speech Codec.” It describes a method and apparatus for reducing abrupt changes in background noise as a mobile communication unit roams from a first communication system to a second system.

During handover, the first system samples its background noise and transfers the communication signal to the second system. The second system mixes the sampled noise from the first system with its own background noise. As the transition proceeds, the first system’s noise is gradually faded out while the second system’s noise is gradually increased. This approach is intended to make the change in ambient sound less noticeable to the user.

Career Highlights

Chan’s listed invention focuses on improving the continuity of mobile calls during handovers between systems with different speech encoders. By managing the transition between background-noise signals, the method addresses an aspect of call quality that can otherwise make a handover perceptible.

Collaborations

The provided information identifies Andrew John Aftelak and Jonathan A. Gibbs as Chan’s coworkers. It does not specify their roles in the patent or establish whether they collaborated on this invention.

Conclusion

Dominic Chan’s listed patent presents a technique for smoothing background-noise transitions during mobile communication handovers, reflecting a focused contribution to call continuity and user experience.