Lexington, MA, United States of America

Shiufun Cheung

This inventor holds 26 USPTO granted patents and 3 published patent applications and 7 EPO patents, primarily in Audio Signal Processing. Top assignees: Bose Corporation, Compaq Computer Corporation, Inc., Compaq Information Technologies Group, L.p.. Active years: 2000-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shiufun Cheung. Retrieved from https://idiyas.com/inventor/shiufun-cheung

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 26 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.1

ph-index = 7

Forward Citations = 88(Granted Patents)


Location History:

  • Waltham, MA (US) (2000 - 2002)
  • Lexington, MA (US) (2015 - 2024)

Company Filing History:


Years Active: 2000-2025

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Areas of Expertise:
Pressure Control
Loudspeakers
Signal Estimation
Dynamic Audio Management
Noise Estimation
Text-to-Speech
Spatial Processing
Boost-on-Demand Amplifiers
Dithered Image Reconstruction
Telephony Audio
Image Edge Detection
Bit Depth Filtering
26 patents (USPTO):Explore Patents

Title: Shiufun Cheung: A Pioneer in Audio Technology and Innovation

Introduction

Shiufun Cheung is an accomplished inventor based in Lexington, MA, known for his significant contributions to audio technology. With a remarkable portfolio of 25 patents, Cheung has made a profound impact on how audio signals are managed and processed, paving the way for innovative solutions in sound engineering.

Latest Patents

Among his latest inventions is a patent titled "Signal Component Estimation Using Coherence." This technology pertains to systems, methods, and machine-readable storage devices that process audio signals captured by microphones. The patented method focuses on effectively separating and estimating the power spectral density (PSD) of audio sources amid environmental noise. The technology iteratively modifies a frequency domain representation to reduce the effects of unwanted acoustic energy, ultimately enhancing sound quality by managing noise or echo components.

Another noteworthy patent from Cheung is the "Dynamic Audio Headroom Management System." This system intelligently prioritizes multiple audio input signals, comparing their aggregate levels against a predefined threshold. In scenarios where the combined audio levels exceed this threshold, the system systematically reduces the levels of audio signals, starting from the least important to maintain optimal clarity and balance.

Career Highlights

Throughout his career, Shiufun Cheung has been associated with esteemed companies such as Bose Corporation and Compaq Computer Corporation, Inc. His experience in these leading organizations has uniquely positioned him to innovate and refine audio processing technologies.

Collaborations

Cheung has also collaborated with other notable professionals in the field, including Zukui Song and Robert Alan Ulichney. These partnerships have contributed to the successful development of various technologies that have transformed audio systems and signal processing.

Conclusion

Shiufun Cheung stands out as a notable inventor in the audio technology space, with a distinguished portfolio and collaborations that highlight his innovative spirit. His patents not only reflect his expertise but also have the potential to influence future advancements in the industry, ensuring clearer, more efficient audio experiences.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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