Company Filing History:
Years Active: 2003-2009
Title: Innovations by Zhangqi Guo
Introduction
Zhangqi Guo is a notable inventor based in San Jose, CA, who has made significant contributions to the field of semiconductor technology. He holds a total of 3 patents that showcase his innovative approach to electronic design and signal processing.
Latest Patents
One of his latest patents is titled "Multiple channel switch using differential de-mux amplifier and differential mux equalizer." This invention involves a switch fabric that carries analog differential signals constructed from 2×2 switches. Each switch has two differential inputs applied to demultiplexers and two differential outputs driven by equalizing multiplexers. The design allows for compensation of loading variations in intermediate differential signals, enhancing the performance of the switch fabric.
Another significant patent is the "CMOS voltage-controlled oscillator (VCO) with a current-adaptive resistor for improved linearity." This VCO is designed for phase-locked loops and features improved bandwidth and performance at lower frequencies. The variable current source adjusts the current supplied to the internal oscillator-power node based on the VCO input voltage, which in turn varies the output frequency. The inclusion of an active resistor enhances the overall linearity of the ring oscillator, improving its bandwidth at lower frequencies.
Career Highlights
Zhangqi Guo is currently employed at Pericom Semiconductor Corporation, where he continues to develop innovative solutions in semiconductor technology. His work has had a significant impact on the industry, particularly in the areas of signal processing and oscillator design.
Collaborations
Zhangqi has collaborated with notable colleagues such as Michael Yimin Zhang and Hide Hattori, contributing to various projects that push the boundaries of technology.
Conclusion
Zhangqi Guo's contributions to the field of semiconductor technology through his patents and work at Pericom Semiconductor Corporation highlight his role as an influential inventor. His innovative designs continue to shape the future of electronic systems.