Chao Xu

Title: Chao Xu - Innovator in Voltage-Controlled Oscillator Technology

Introduction

Chao Xu is a notable inventor based in Allentown, PA (US). He has made significant contributions to the field of electronics, particularly in the development of voltage-controlled oscillators (VCOs). His innovative work has led to the creation of a patent that enhances the functionality of VCOs, making them more versatile and efficient.

Latest Patents

Chao Xu holds a patent for an "Extended frequency range voltage-controlled oscillator." This invention allows the VCO frequency to be continuously variable through a wide frequency range in proportion to a first control voltage (VC) produced by a phase-locked loop (PLL) containing the VCO. Additionally, a second control voltage (NVC) is generated as a monotonically decreasing function of VC. The invention also involves the production of two currents, where the first current (I) is proportional to VC and the second current (I) is proportional to NVC. The difference between these currents produces a control current (IC = I - I), which is then applied to the VCO.

Career Highlights

Chao Xu is currently employed at Pmc-Sierra, Inc., where he continues to work on innovative technologies in the field of electronics. His expertise in voltage-controlled oscillators has positioned him as a valuable asset to his company and the industry at large.

Collaborations

Chao Xu collaborates with Bijit Thakorbhai Patel, working together to advance their projects and contribute to the field of electronics.

Conclusion

Chao Xu's contributions to voltage-controlled oscillator technology exemplify his innovative spirit and dedication to advancing electronic engineering. His patent reflects a significant step forward in the functionality of VCOs, showcasing his expertise and commitment to innovation.