Company Filing History:
Years Active: 2002-2004
Title: Innovations by Xianguo Cao
Introduction
Xianguo Cao is a notable inventor based in Shanghai, China. He has made significant contributions to the field of electronics, particularly in the development of circuits that enhance the performance of chips. With a total of 2 patents, his work focuses on addressing the challenges posed by process, voltage, and temperature (PVT) conditions in electronic devices.
Latest Patents
One of Xianguo Cao's latest patents is a delay compensation circuit. This innovative circuit determines the effects of PVT conditions of a chip by measuring the effective delay time of delay components inside the chip. The delay compensation circuit includes multiple sampler modules, each receiving a delayed clock signal from a series of delay cells within a tapped delay circuit. The output value generated by this circuit is based on the total number of sampling modules that lock into a fixed input signal using the delayed clock signals. This technology allows for the design of components that can compensate for variances in PVT conditions or control a variable delay component based on detected PVT conditions.
Another significant patent is the termination structure for high-speed, high pin density chips. This apparatus includes first and second devices, with at least one connection between an input of the second device and an output of the first device. A series resistor is placed between the connection and the input of the second device, acting as a type of end termination. This design positively alters the waveforms of the signals input to the second device, reducing glitches and ringing. As a result, the input signals become usable, and the interface between the devices operates correctly, all while consuming very little extra power.
Career Highlights
Xianguo Cao is currently employed at Lucent Technologies Inc., where he continues to innovate and develop advanced electronic solutions. His work has had a profound impact on the efficiency and reliability of electronic devices.
Collaborations
Throughout his career, Xianguo has collaborated with talented individuals such as Obed Duardo and Bo Ye. These partnerships have contributed to the successful development of his patented technologies.
Conclusion
Xianguo Cao's contributions to the field of electronics through his innovative patents demonstrate his expertise and commitment to advancing technology. His work not only addresses critical challenges in chip design but also paves the way for future innovations in the industry.