Sriram Narayanan

Title: Innovations by Sriram Narayanan in Wireless Power Transfer Systems

Introduction

Sriram Narayanan is an accomplished inventor based in Los Gatos, California. He has made significant contributions to the field of wireless power transfer systems, holding two patents that enhance communication and timing recovery in these technologies. His work is pivotal in advancing the efficiency and reliability of wireless power systems.

Latest Patents

One of Sriram's latest patents is titled "Timing recovery for in-band communication in inductive power transfer systems." This invention describes a clock recovery system that utilizes a phase locked loop, a bit decision block, and a multiplexer to recover an in-band communication clock. The system is designed to provide an error signal to the loop filter based on detected bits in the communication bitstream. The phase locked loop includes a phase detector that computes an error signal from the difference between instantaneous and estimated peak locations, ensuring accurate timing recovery.

Another notable patent is "Enhanced communications for wireless power transfer." This invention allows a wireless power transmitter to receive results from a characterizing signal transmitted by a wireless power receiver. It computes parameters that characterize the in-band communications channel and applies equalizing filter taps to improve signal quality. The transmitter can request the receiver to send a characterizing signal, enhancing the overall communication process in wireless power transfer systems.

Career Highlights

Sriram Narayanan is currently employed at Apple Inc., where he continues to innovate in the field of wireless technologies. His work focuses on improving the efficiency and effectiveness of wireless power transfer systems, contributing to Apple's advancements in this area.

Collaborations

Sriram has collaborated with notable colleagues, including Xing Zhou and Alireza Safaee. Their combined expertise has fostered a collaborative environment that drives innovation in wireless power technologies.

Conclusion

Sriram Narayanan's contributions to wireless power transfer systems through his patents demonstrate his commitment to innovation in this field. His work not only enhances communication but also improves the efficiency of power transfer technologies.