Zhihao Xu

Title: Zhihao Xu: Innovations in Image Sensor Technology

Introduction

Zhihao Xu, an accomplished inventor based in Sunnyvale, California, has made significant contributions to the realm of image sensor technology. With a robust portfolio of three patents, Xu's innovations are pivotal in enhancing the performance and efficiency of imaging systems.

Latest Patents

Among his latest patents, one notable invention is the "Image Sensor Power Supply Rejection Ratio Improvement through Ramp Generator in Continuous Time Readout Circuitry." This patent details a ramp generator designed to improve the power supply rejection ratio in readout circuitry, employing an integrator to handle a reference ramp signal effectively. The innovative use of a power supply compensation circuit, which includes a variable resistor and a filter capacitor, is crucial in tuning the delay ripple from the power supply. Additionally, a capacitive voltage divider is integrated into the circuit to generate the ramp generator input reference signal, showcasing Xu's adeptness at optimizing system performance.

Another significant patent is the "Selective Gain Control Circuit," which focuses on providing signal amplification while minimizing fixed pattern noise. This invention involves an amplifier and multiple parallel legs that enhance the circuit's flexibility. With intelligent control logic, it can select various configurations to maintain consistent loop gain, highlighting Xu's commitment to advancing technology in signal processing.

Career Highlights

Zhihao Xu currently works at OmniVision Technologies, Inc., a leader in advanced imaging technology. His work there involves innovative designs that enhance the functionality and efficiency of imaging systems, contributing to the company's reputation as a pioneer in the industry.

Collaborations

Throughout his career, Zhihao has collaborated with esteemed colleagues such as Guangbin Zhang and Liang Zuo. These partnerships have fostered an environment of creativity and innovation, driving forward the boundaries of image sensor technology.

Conclusion

Zhihao Xu exemplifies the spirit of innovation in the field of image sensors. Through his notable patents and collaborations, he has significantly impacted technology, paving the way for future developments. His contributions at OmniVision Technologies, Inc. demonstrate the importance of inventors like Xu in pushing the boundaries of what is possible in imaging technology.