Location History:
- Goyang-si, KR (2006)
- Kyungki-do, KR (2008)
Company Filing History:
1 out of 49,627 
1 out of 11,285 
Years Active: 2006-2008
Title: Innovations of Sung Wan Yoon
Introduction
Sung Wan Yoon is a notable inventor based in Kyungki-do, South Korea. He has made significant contributions to the field of speech codecs, holding two patents that showcase his innovative approach to technology.
Latest Patents
One of his latest patents is a transcoder for speech codecs of different Code-Excited Linear Prediction (CELP) types. This transcoder includes a decoding unit of an input CELP codec, a transcoding filter, a transcoding filter design unit, and an encoding unit of an output CELP codec. By substituting a post-filter and a perceptual weighting filter of prior art with one transcoding filter, the calculation amount of the transcoder is reduced, and the speech quality decoded at the receiving end is improved. Another patent involves a method for searching a codebook that predicts a residual element of an input voice signal. This method includes combining each track of the input signal, forming track units with at least two tracks, and determining a pulse code for each track. It further calculates energy for each track using an energy formula that includes a vector dot product, arranging or selecting codewords in a small track energy order, and searching or selecting an optimal pulse for a single- or double-pulse track of the selected codeword.
Career Highlights
Sung Wan Yoon has worked with prominent companies such as LG Electronics Inc. and the Electronics and Telecommunications Research Institute. His experience in these organizations has contributed to his expertise in the field of telecommunications and audio processing.
Collaborations
Some of his notable coworkers include Dae Hee Youn and Sung Kyo Jung. Their collaboration has likely fostered an environment of innovation and creativity in their projects.
Conclusion
Sung Wan Yoon's contributions to the field of speech codecs through his patents demonstrate his innovative spirit and technical expertise. His work continues to influence advancements in audio processing technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.