Company Filing History:
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Years Active: 2015-2024
Title: The Innovative Contributions of Ji-soo Chang
Introduction
Ji-soo Chang is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of technology, particularly in biometric authentication and amplifying circuits. With a total of 7 patents to his name, Chang's work reflects a commitment to advancing innovation in electronic devices.
Latest Patents
One of Ji-soo Chang's latest patents is for biometric authentication smart cards. This smart card features a peripheral circuit that controls a fingerprint sensing array and generates a raw image. It includes an authentication information processing module that processes the raw image into fingerprint information for verification. Additionally, a security module determines whether the fingerprint information matches registered data to approve or disapprove payment requests. Notably, all these components are integrated into a single chip, enhancing the card's functionality and security.
Another significant patent involves an amplifying circuit that includes a Miller compensation circuit. This circuit is designed to receive a first input voltage and output a first output voltage by amplifying the input. It also features a common-mode feedback circuit that adjusts feedback voltage based on the output voltage. The first Miller compensation circuit within this design performs dominant pole compensation using the Miller effect, showcasing Chang's innovative approach to circuit design.
Career Highlights
Throughout his career, Ji-soo Chang has worked with notable companies, including Samsung Electronics and the SNU RDB Foundation. His experience in these organizations has allowed him to develop and refine his inventions, contributing to advancements in technology.
Collaborations
Ji-soo Chang has collaborated with several talented individuals in his field, including Yong-hee Park and Young-Seok Song. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.
Conclusion
Ji-soo Chang's contributions to technology through his patents and collaborations highlight his role as a leading inventor in the field. His work continues to influence advancements in biometric authentication and electronic circuits, paving the way for future innovations.