Zongde Qiu

Title: Zongde Qiu: Innovator in Navigation Technology

Introduction

Zongde Qiu is a notable inventor based in Shishi, China. He has made significant contributions to the field of navigation technology, particularly in the development of advanced GPS systems. With a total of 3 patents, his work focuses on improving the efficiency and reliability of navigation signal acquisition.

Latest Patents

One of Zongde Qiu's latest patents is titled "Method of mixed data assisted and non data assisted navigation signal acquisition, tracking and reacquisition." This invention provides systems and methods that enable a navigation signal receiver to perform both data-assisted and non-data-assisted integration. This dual approach enhances the integration process during signal acquisition, reacquisition, and tracking. In data-assisted mode, the receiver utilizes known or predicted data bits to eliminate the modulated data bits of a received signal before integration. Conversely, in non-data-assisted mode, the receiver employs optimal estimation or maximum likelihood algorithms to ascertain the polarities of the modulated data bits when they are not known or predictable.

Another significant patent is the "Unassisted indoor GPS receiver." This invention allows GPS receivers to track very weak GPS signals, especially in indoor environments, without relying on external servers or networks. The GPS receiver initially acquires and locks onto satellite signals outdoors to compute its position. It then continues to track at least one satellite signal indoors to maintain acquisition parameters for quick signal acquisition. To conserve power, the receiver automatically enters a sleep state and periodically wakes up to maintain satellite signal tracking.

Career Highlights

Zongde Qiu has worked with several prominent companies in the technology sector, including Centrality Communications, Inc. and SiRF Technology, Inc. His experience in these organizations has contributed to his expertise in navigation technologies and signal processing.

Collaborations

Throughout his career, Zongde Qiu has collaborated with notable professionals in the field, including Chi-Shin Wang and David Wang. These collaborations have further enriched his work and innovations in navigation technology.

Conclusion

Zongde Qiu's contributions to navigation technology through his patents and career experiences highlight his role as an innovator in the field. His work continues to influence advancements in GPS systems and signal processing.