Daejeon, South Korea

Chang-Ki Lee

This inventor holds 2 USPTO granted patents and 2 published patent applications. Top assignees: Electronics and Telecommunications Research Institute, Korea Telecom. Active years: 1999-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chang-Ki Lee. Retrieved from https://idiyas.com/inventor/chang-ki-lee-agd8enb8

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

Calculating rank
USPTO Granted Patents = 2 

% Patents Active = 50.0

Average Co-Inventor Count = 6.7

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 1999-2013

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2 patents (USPTO):Explore Patents

Title: Chang-Ki Lee: Innovator in Question Answering and Synchronous Systems

Introduction

Chang-Ki Lee is a notable inventor based in Daejeon, South Korea. He has made significant contributions to the fields of question answering systems and synchronous communication technologies. With a total of 2 patents, his work reflects a commitment to advancing technology and improving user experiences.

Latest Patents

One of Chang-Ki Lee's latest patents is an "Apparatus for question answering based on answer trustworthiness and method thereof." This innovative apparatus includes an answer indexer that indexes documents based on their trustworthiness, an answer candidate extractor that retrieves relevant documents for user queries, and a trustworthiness integrator that ranks these documents. This system enhances the reliability of answers provided to users by evaluating various trustworthiness metrics.

Another significant patent is the "Synchronous cross-connect system with the function of ring network." This system features an integrated 2.5 Gbps (STM-16) I/O link and allows for efficient signal transmission without the need for additional apparatus. It includes components for signal intercrossing and clock signal generation, ensuring high survivability and real-time fault recovery through ring network interworking.

Career Highlights

Chang-Ki Lee has worked with prominent organizations such as the Electronics and Telecommunications Research Institute and Korea Telecom. His experience in these institutions has allowed him to develop and refine his innovative ideas, contributing to advancements in telecommunications and information technology.

Collaborations

Throughout his career, Chang-Ki Lee has collaborated with talented individuals, including Hong-Ju Kim and Ho-Geon Kim. These partnerships have fostered a creative environment that has led to the development of impactful technologies.

Conclusion

Chang-Ki Lee's contributions to technology through his patents and career achievements highlight his role as an influential inventor. His work continues to shape the future of question answering systems and synchronous communication technologies.

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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