Company Filing History:
Years Active: 2008
Title: Innovations of Yun-Shan Chang
Introduction
Yun-Shan Chang is a notable inventor based in Taipei, Taiwan. He has made significant contributions to the field of electronics, particularly in the development of advanced mixer and bias circuit technologies. With a total of 2 patents, his work addresses critical challenges in conventional electronic designs.
Latest Patents
Chang's latest patents include an "Active Mixer with Self-Adaptive Bias Feedback" and a "Linearized Bias Circuit with Adaptation." The active mixer invention resolves issues related to poor linearity and inconvenient bias circuit designs found in traditional mixers. By utilizing a dual self-feedback bias structure, this invention enhances linearity without compromising other characteristics. It also reduces the number of components, resulting in a smaller mixer area, improved temperature response, increased yield factor, and lower unit costs.
The linearized bias circuit addresses the temperature variation problems that affect power amplifiers with conventional bias circuits. This invention features a reference voltage source and several NPN transistors, providing bias current temperature compensation and gain and phase compensations. The design minimizes the required elements and layout area, simplifying the design process while improving yield and reducing costs.
Career Highlights
Yun-Shan Chang is currently employed at Richwave Technology Corporation, where he continues to innovate in the field of electronics. His work has had a significant impact on the efficiency and performance of electronic devices.
Collaborations
Chang collaborates with talented colleagues, including Chih-Wei Chen and Shyh-Chyi Wong, contributing to a dynamic and innovative work environment.
Conclusion
Yun-Shan Chang's contributions to electronics through his patents demonstrate his commitment to innovation and improvement in technology. His work not only addresses existing challenges but also paves the way for future advancements in the field.
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.