Endwell, NY, United States of America

Agnes Yee Ngai

This inventor holds 51 USPTO granted patents, primarily in Video Encoding (CPC class 3484). Top assignee: International Business Machines Corporation. Active years: 1990-2011.


% Patents Active = 84.3

Average Co-Inventor Count = 3.2

ph-index = 25

Forward Citations = 1,746(Granted Patents)

Forward Citations (Not Self Cited) = 1,721(Dec 10, 2025)


Inventors with similar research interests:


Company Filing History:


Years Active: 1990-2011

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Areas of Expertise:
MPEG Encoding
Motion Estimation
Video Compression
Adaptive Encoding
Quantization
Real-Time Processing
Filter Design
Image Scaling
Bit Rate Control
Macroblock Coding
Dynamic Buffer Management
Color Component Compression
51 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Agnes Yee Ngai

Introduction

Agnes Yee Ngai, based in Endwell, NY, has made significant strides in the field of technology and engineering, boasting an impressive total of 51 patents. Her contributions span various aspects of data processing and image technology, solidifying her reputation as an influential inventor.

Latest Patents

Ngai's latest patents include innovations such as a "Cascaded output for an encoder system using multiple encoders." This groundbreaking technology allows for plural encoders operating in parallel to achieve a desired data rate. The respective outputs are combined by an autonomously operating arrangement for efficient data transfer to a direct memory access system. Importantly, this innovation addresses issues like buffering and the suppression of zero bytes to enhance signal quality.

Additionally, Ngai holds a patent for a "System and method for processing a high definition television (HDTV) image." This invention features a system where multiple programmable encoders are connected directly to an HDTV video source, allowing each encoder to process only a portion of the full image at a high frequency. This advancement has significant implications for improving HDTV image quality and processing efficiency.

Career Highlights

Ngai's career has flourished during her time at International Business Machines Corporation (IBM), where she has contributed to numerous projects that advance technology and innovation. Her role at IBM has allowed her to explore cutting-edge developments in data encoding and multimedia processing, showcasing her expertise in the field.

Collaborations

Throughout her career, Agnes Yee Ngai has collaborated with esteemed colleagues, including Barbara A Hall and Edward Francis Westermann. These partnerships have fostered an environment of creativity and innovation, resulting in numerous successful projects and patents that have impacted the technology landscape.

Conclusion

Agnes Yee Ngai continues to be a prominent figure in the realm of technology and innovation. With her extensive portfolio of patents and impactful collaborations, she exemplifies the spirit of invention and the pursuit of excellence in engineering. Her work not only enhances current technologies but also paves the way for future advancements in the industry.

Profile summary based on public USPTO records.
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