Chul-joon Choi

Title: Innovations of Chul-joon Choi

Introduction

Chul-joon Choi is a prominent inventor based in Suwon-si, South Korea. He has made significant contributions to the field of technology, particularly in the development of Radio Frequency Identification (RFID) systems and encryption processors. With a total of five patents to his name, Choi continues to push the boundaries of innovation.

Latest Patents

Choi's latest patents include a groundbreaking RFID tag and a method for receiving RFID tag signals. This RFID tag features a demodulator that effectively receives a read signal containing essential read data. The demodulator is equipped with a voltage generating circuit that provides both a first and a second voltage signal derived from the received read signal. Additionally, it includes an inverter that generates a data pulse signal indicative of the read data by inverting the second voltage signal using a defined inverting voltage in relation to the first voltage signal. Furthermore, a buffer is incorporated to recover the read data by buffering the data pulse signal.

Another notable patent is the encryption processor for memory cards, which facilitates the writing and reading of encrypted data. This processor includes a FIFO memory that sequentially outputs m-bit data in response to a first signal. It also features an encryption key generator that produces m-bit encrypted keys in response to a second signal and sequentially outputs these keys in response to a third signal. During data write operations, a logic operator performs a logic operation on the data from the FIFO memory with the keys from the encryption key generator to encrypt the data. Similarly, during data read operations, the logic operator decodes the encrypted data using the keys generated.

Career Highlights

Chul-joon Choi is currently employed at Samsung Electronics Co., Ltd., a leading global technology company. His work at Samsung has allowed him to collaborate on various innovative projects that have advanced the field of electronics and data security.

Collaborations

Choi has worked alongside talented colleagues, including Seong-Hyun Kim and Sang-Bum Kim. Their collaborative efforts have contributed to the successful development of several patented technologies.

Conclusion

Chul-joon Choi's contributions to technology through his patents in RFID systems and encryption processors highlight his innovative spirit and dedication to advancing the field. His work continues to influence the industry and pave the way for future advancements.