This inventor holds 4 USPTO granted patents. Top assignee: Lg Electronics Inc.. Active years: 2001-2012.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kyunggi-do, KR (2001)
- Kyungki-do, KR (2002)
- Seoul, KR (2001 - 2012)
Company Filing History:
Years Active: 2001-2012
Title: Hee Sub Lee: Innovator in Video Signal Processing
Introduction
Hee Sub Lee is a notable inventor based in Kyungki-do, South Korea. He has made significant contributions to the field of video signal processing, holding a total of 4 patents. His work focuses on enhancing the quality of video signals and improving the functionality of tuners.
Latest Patents
One of his latest patents is a tuner capable of receiving television broadcasting signals across a wide frequency bandwidth of 48 MHz to 1 GHz. This tuner utilizes a tunable filter that includes an inductor and a variable capacitor to effectively reject harmonics. The design incorporates a mixer that combines the output signal of the tunable filter with a local oscillator signal, converting it into an In-phase and Quadrature IF signal. This signal is then processed through an IF signal processor and demodulated to produce an appropriate output.
Another significant patent involves a method and apparatus for eliminating noise in a video signal encoder. This innovation divides an input video signal into a noise component and a pure video signal component. It performs filtering gain control based on the energy rates of both components, thereby enhancing picture quality. The method also extracts a noise-filtered signal component and combines it with the filtered remaining signal, effectively eliminating noise while maintaining resolution.
Career Highlights
Hee Sub Lee is currently employed at LG Electronics Inc., where he continues to develop innovative technologies in video processing. His expertise in this area has led to advancements that significantly improve the quality of video signals.
Collaborations
He has collaborated with notable coworkers, including Dong Gu Im and Cheol-Hong Min, contributing to various projects that enhance video technology.
Conclusion
Hee Sub Lee's contributions to video signal processing and tuner technology demonstrate his innovative spirit and commitment to improving electronic communication. His patents reflect a deep understanding of the complexities involved in video signal enhancement, making him a valuable asset in the field.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile