Location History:
- Daegu, KR (1987)
- Daejeon, KR (1996 - 1999)
Company Filing History:
3 out of 11,315 
1 out of 81 
1 out of 192 
Years Active: 1987-1999
Title: **Inventor Spotlight: Sang-Hoon Chai**
Introduction
Sang-Hoon Chai, an innovative inventor based in Daejeon, South Korea, has made significant contributions to the field of electronics and telecommunications. With a total of four patents to his name, Chai's work showcases his dedication to advancing technology and improving circuit efficiency.
Latest Patents
Chai's most recent patents demonstrate his expertise in data retiming and output buffer circuits. One of his innovative creations is a **Data Retiming Circuit**, which effectively retimes externally inputted data using multiple clocks from a voltage-controlled oscillator within a phase-locked loop. This advanced circuit design includes key components such as a first delay unit and a data latch state determination unit, which work together to enhance timing precision and data integrity.
Another notable patent is the **Low Power Output Buffer Circuit**, designed to output Emitter Coupled Logic (ECL) signals or Pseudo ECL (PECL) signals using a CMOS device. This circuit simplifies the output buffer design by utilizing 100-ohm load resistors with a center tap to ground, significantly reducing power consumption compared to prior art, which required greater energy use for operation.
Career Highlights
Throughout his professional journey, Sang-Hoon Chai has been associated with reputable organizations. He has worked at the Electronics and Telecommunications Research Institute and Korea Telecom, where he contributed to various innovative projects that leveraged his technical expertise and problem-solving skills.
Collaborations
During his career, Chai has collaborated with esteemed colleagues, including Won-Chul Song and Hee-Bum Jung. These collaborations have allowed him to share knowledge and foster innovation within the electronics field, contributing to the successful development of advanced technologies.
Conclusion
Sang-Hoon Chai exemplifies the spirit of innovation in the electronics sector, with a focus on enhancing circuit design and efficiency. His patents not only reflect his technical proficiency but also contribute to advancements that may shape the future of telecommunications and electronics. As a passionate inventor, Chai continues to inspire future generations in the realm of technological innovation.