Location History:
- Chang-Hua Hsien, TW (2007 - 2010)
- Chonghua County, TW (2010)
- Shetou Township, Changhua County, TW (2010)
Company Filing History:
Years Active: 2007-2010
Title: Ren-Chieh Liu: Innovator in Mixer Technology
Introduction
Ren-Chieh Liu is a prominent inventor based in Chang-Hua Hsien, Taiwan. He has made significant contributions to the field of mixer technology, holding a total of eight patents. His innovative designs have advanced the capabilities of mixer devices, making them more efficient and versatile.
Latest Patents
Among his latest patents are the "Multi-input mixer, mixer device, and mixing method" and the "Switch circuit having adjustable linearity of differential mode resistances." The multi-input mixer device includes a differential circuit, a transconductance circuit, and a selecting circuit. The differential circuit receives a differential input signal and generates a differential output signal. The transconductance circuit is coupled to the differential circuit, receiving multiple radio frequency input signals and determining to mix at least one of these signals with the differential input signal based on an enable signal. The selecting circuit generates this enable signal according to a control signal. The switch circuit patent features a pair of metal oxide semiconductor (MOS) switches and an adjusting unit. Each MOS switch has input and output terminals, receiving differential input voltages and outputting differential output voltages when conducting. The adjusting unit modifies the difference between common mode levels of the input and output terminals to adjust the linearity of differential mode resistances.
Career Highlights
Ren-Chieh Liu is currently employed at Realtek Semiconductor Inc., where he continues to innovate and develop new technologies. His work has been instrumental in enhancing the performance of electronic devices that rely on advanced mixing techniques.
Collaborations
He collaborates with talented colleagues, including Chao-Cheng Lee and Turut Sefket Aytur, contributing to a dynamic and innovative work environment.
Conclusion
Ren-Chieh Liu's contributions to mixer technology exemplify his dedication to innovation and excellence in engineering. His patents reflect a deep understanding of electronic systems and a commitment to advancing technology in meaningful ways.
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.