David James Ryan

Title: David James Ryan: Innovator in Wireless Communications

Introduction

David James Ryan is a notable inventor based in Seattle, WA (US). He has made significant contributions to the field of wireless communications, particularly in enhancing the efficiency of signal transmission.

Latest Patents

Ryan holds a patent for the "FDD forward link beamforming method for a FDD communications system." This innovative method maximizes the signal-to-interference-noise ratio (SINR) of transmissions from a base station to a remote station in a wireless communications system. The method utilizes a plurality of antenna elements capable of spatial beam steering by altering the relative phase of transmission signals. It involves the use of calibration frames that transmit calibration bursts, which include a distinctive orthogonal frequency division multiplexed pattern unique to the base station. This unique pattern allows remote stations to distinguish the base station's bursts from other signals in crowded areas.

Career Highlights

David James Ryan is currently employed at AT&T Wireless Services Inc., where he continues to develop and refine technologies that enhance wireless communication systems. His work focuses on improving the efficiency and reliability of signal transmission, which is crucial in today's fast-paced digital environment.

Conclusion

David James Ryan's contributions to wireless communications through his innovative patent demonstrate his commitment to advancing technology in this field. His work not only enhances communication efficiency but also sets a foundation for future developments in wireless technology.