Chang-Hyun Kwak

Title: Chang-Hyun Kwak: Innovator in Communication Systems

Introduction

Chang-Hyun Kwak is a notable inventor based in Seoul, South Korea. He has made significant contributions to the field of communication systems, holding 2 patents that showcase his innovative approach to technology. His work primarily focuses on improving the efficiency and reliability of communication systems.

Latest Patents

One of his latest patents is titled "Apparatus and method for rate dematching in a communication system." This invention provides an apparatus that includes an input sequence generator, an error calculator, and a puncture/repetition determiner. The input sequence generator calculates whether the current input data corresponds to any sequence among the previously interleaved data. The error calculator then computes an error for the current input data based on this calculated sequence. Finally, the puncture/repetition determiner identifies the type of the current input data using the error calculated.

Another significant patent by Chang-Hyun Kwak is "Apparatus and method for stopping iterative decoding in a mobile communication system." This invention outlines a method for stopping iterative decoding in a channel decoder of a mobile communication system. It involves performing constituent decoding of received signals and outputting decoded signals. Hard decision processes are applied to these decoded signals, and the hard-decided signals are cyclic redundancy check (CRC) encoded. A determination is made regarding the parity, and iterative decoding is halted based on the results.

Career Highlights

Chang-Hyun Kwak is currently employed at Samsung Electronics Co., Ltd., where he continues to develop innovative solutions in communication technology. His work at Samsung has allowed him to contribute to advancements that enhance mobile communication systems.

Collaborations

He collaborates with talented coworkers, including Sang-Hyo Kim and Young-Mo Gu, who share his passion for innovation in technology.

Conclusion

Chang-Hyun Kwak is a prominent figure in the field of communication systems, with a focus on developing methods that improve data transmission and decoding processes. His contributions through patents reflect his commitment to advancing technology in this vital area.