Location History:
- Torrance, CA (US) (2009)
- Cupertino, CA (US) (2011)
- Irvine, CA (US) (2012 - 2022)
Company Filing History:
2 out of 41,326 
2 out of 196 
1 out of 26 
Years Active: 2009-2022
Title: Innovations of Qingwen Zhang in Satellite Positioning Systems
Introduction
Qingwen Zhang, an accomplished inventor based in Irvine, California, has made significant contributions to the field of satellite positioning systems. With a total of six patents to his name, Qingwen's work focuses on enhancing the accuracy and reliability of signal processing within this critical technology.
Latest Patents
One of Qingwen Zhang's notable patents is related to carrier phase-based multipath (MP) detection. This innovative approach utilizes phase differences in the output of Early/Prompt/Late (EPL) correlation for effective multipath detection. The invention involves coherent integrations of EPL correlator outputs to determine the respective carrier phase and identify multipath occurrence based on maximum phase differences that exceed specific thresholds. This method also incorporates techniques to reduce false positives through averaging phases over multiple samples.
Another significant patent by Zhang focuses on control and features for satellite positioning system receivers. This system integrates an expert system receiver manager, along with joint detection, carrier centering, and bit synchronization acquisition subsystems. Additional components include peak detection, a multi-dimensional measurement interpolation subsystem, and a power control module, all of which work together to optimize the signal processing of navigational signals.
Career Highlights
Qingwen Zhang has had a dynamic career, having worked with prominent companies such as Qualcomm Incorporated and Csr Technology Inc. His expertise in satellite navigation technologies has been instrumental in propelling advancements in the field, showcasing his dedication to pushing the boundaries of innovation.
Collaborations
Throughout his career, Qingwen Zhang has collaborated with talented individuals like Sundar Raman and Paul A. Underbrink. Their collective efforts have contributed to the development of groundbreaking technologies in satellite positioning and signal processing.
Conclusion
Qingwen Zhang’s innovative work and patents demonstrate a commitment to improving satellite positioning systems and signal processing techniques. His contributions to the industry highlight the importance of collaboration and creativity in driving advancements in technology, solidifying his position as a notable inventor in the field.
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.