Sang Gil Lee

Title: Innovations by Sang Gil Lee in Alcohol Consumption Detection

Introduction

Sang Gil Lee is a notable inventor based in Busan, South Korea. He has made significant contributions to the field of alcohol consumption detection through innovative methods that utilize voice signals. With a total of 6 patents, his work aims to enhance safety in various operational environments.

Latest Patents

Sang Gil Lee's latest patents include a method for judgment of drinking using differential energy in the time domain. This method involves detecting effective frames of an input voice signal and analyzing the energy differences to determine alcohol consumption. By assessing the average energy of the original signal and the difference signal, it is possible to ascertain whether a person has consumed alcohol and to what degree. This technology can be particularly useful in preventing accidents caused by individuals operating vehicles or machinery under the influence of alcohol.

Another significant patent is a method for determining alcohol consumption, which analyzes voice signals in a time domain. This method includes a voice input unit that generates voice frames and a voiced/unvoiced sound analysis unit that distinguishes between voiced sounds, unvoiced sounds, and background noise. The system extracts average energy from the voice frames and determines alcohol consumption based on energy differences among intervals. This innovative approach provides a reliable means of assessing a person's sobriety through voice analysis.

Career Highlights

Sang Gil Lee is affiliated with Soongsil University, where he continues to advance research in the field of alcohol detection technologies. His work not only contributes to academic knowledge but also has practical applications in enhancing public safety.

Collaborations

Sang Gil Lee has collaborated with notable colleagues such as Myung Jin Bae and Geum Ran Baek. Their combined expertise has furthered the development of innovative solutions in alcohol consumption detection.

Conclusion

Sang Gil Lee's contributions to the field of alcohol consumption detection through voice signal analysis represent a significant advancement in safety technology. His innovative methods have the potential to prevent accidents and promote responsible behavior in various operational contexts.