Nantou, Taiwan

Lun-Ci Liu

This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignee: National Chi Nan University. Active years: 2015-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Lun-Ci Liu. Retrieved from https://idiyas.com/inventor/lun-ci-liu

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 3 

Average Co-Inventor Count = 2.6

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2015-2017

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3 patents (USPTO):Explore Patents

Title: Lun-Ci Liu: Innovator in Mixer Technology

Introduction

Lun-Ci Liu is a notable inventor based in Nantou, Taiwan. He has made significant contributions to the field of electronic mixers, holding a total of 3 patents. His work focuses on enhancing the performance and efficiency of mixing technologies.

Latest Patents

Lun-Ci Liu's latest patents include a sophisticated mixer design. This mixer features a trans conductance unit, a gain boost unit, a mixing module, and a buffer. The trans conductance unit, gain boost unit, and mixing module work together to mix a differential input voltage signal pair with a differential oscillatory voltage signal pair. This process generates a differential mixed voltage signal pair. The buffer then performs buffering on this signal pair, utilizing inductance that cooperates with parasitic capacitance at the output terminals to form an LC tank circuit. This circuit reaches resonance at the frequency of the differential mixed voltage signal pair, effectively behaving as an open circuit.

Another significant invention is the balanced up-conversion mixer. This device includes a negative resistance compensation circuit that generates and outputs first and second currents based on a DC bias voltage. The mixing circuit allows a differential radio frequency current (DRFC) signal pair to flow based on the first and second currents, along with a differential oscillating voltage (DOV) signal pair and a differential intermediate frequency voltage (DIFV) signal pair. The load circuit then outputs a differential radio frequency voltage signal pair based on its impedance, the DC bias voltage, and the DRFC signal pair.

Career Highlights

Lun-Ci Liu is affiliated with National Chi Nan University, where he continues to innovate and contribute to the field of electronics. His work has garnered attention for its practical applications in modern technology.

Collaborations

Lun-Ci Liu collaborates with esteemed colleagues such as Yo-Sheng Lin and Chia-Hsing Wu. Their combined expertise enhances the research and development of advanced electronic systems.

Conclusion

Lun-Ci Liu stands out as a prominent inventor in the realm of mixer technology. His innovative patents reflect his commitment to advancing electronic engineering. His contributions are poised to influence the future of mixing technologies significantly.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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