Location History:
- Taejon, KR (2004 - 2006)
- Daejon, KR (2007 - 2011)
- Daejeon, KR (1996 - 2016)
Company Filing History:
12 out of 11,315 
1 out of 192 
1 out of 72 Years Active: 1996-2016
Title: Ik-Soo Eo: Innovator in Sample Rate Conversion and Speech Coding
Introduction
Ik-Soo Eo is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the fields of signal processing and speech coding. With a total of 12 patents to his name, Eo has developed innovative technologies that enhance the efficiency and quality of audio processing.
Latest Patents
One of his latest patents is a sample rate converter and method of converting sample rate. This invention includes a data delay unit, a clock rate conversion unit, a Lagrange polynomial filter unit, a resample position calculation unit, and a resample position compensation unit. The data delay unit delays signals in response to an input clock signal, while the clock rate conversion unit converts the sample rate of the signals. The Lagrange polynomial filter unit performs a filtering function on the converted signals. Additionally, the resample position calculation unit outputs the value of the resample position based on a set resample ratio value, and the resample position compensation unit corrects the error value of the signals, ultimately outputting a final signal.
Another notable patent is a waveform interpolation speech coding apparatus and method for reducing complexity. This apparatus includes a waveform interpolation encoding unit that receives a speech signal, calculates parameters for waveform interpolation, and quantizes these parameters. Furthermore, a realignment parameter calculating unit restores a characteristic waveform using the quantized parameters and calculates a realignment parameter that maximizes cross-correlation among consecutive characteristic waveforms.
Career Highlights
Ik-Soo Eo has worked with esteemed organizations such as the Electronics and Telecommunications Research Institute and the Korea Telecommunication Authority. His experience in these institutions has allowed him to refine his skills and contribute to groundbreaking advancements in technology.
Collaborations
Throughout his career, Eo has collaborated with notable colleagues, including Kyung-Soo Kim and Hee-Bum Jung. These partnerships have fostered innovation and have led to the development of impactful technologies in the field.
Conclusion
Ik-Soo Eo is a distinguished inventor whose work in sample rate conversion and speech coding has significantly advanced the field of audio processing. His numerous patents reflect his dedication to innovation and excellence in technology.