Haoran Pu

Title: Haoran Pu: Advancing High-Resolution EEG Signal Acquisition.

Introduction

Haoran Pu is an inventor based in Irvine, California, whose work includes a patent for a high-resolution electroencephalograph signal acquisition system. His invention addresses signal recording, electrode design, and the portability of EEG equipment.

Latest Patents

Pu’s listed patent, “High Resolution Electroencephalograph Signal Acquisition System,” describes a non-invasive EEG signal recorder and a multiband active electrode (MAE) cap array. The system divides the desired brain-signal bandwidth into smaller bands, each recorded through a separate amplification path. It also introduces a twisted differential feedback topology for amplifiers and active filters designed to provide ultra-high input impedance.

The patent further describes a one-wire EEG cap array made of tightly connected MAEs. By reducing the number of wires linking the cap to its host processor, the design aims to improve flexibility and portability. Because the active electronics are embedded in the electrodes, their outputs are digital information. The connected MAE network also allows dynamic selection of the reference electrode, while a correction feedback loop adjusts the reference-node voltage before each recording step. Pu is listed as having 1 patent.

Career Highlights

Pu is associated with the University of California. His patented work focuses on EEG signal acquisition and electrode-array architecture, combining multiband amplification with a connected, digitally enabled cap design.

Collaborations

The listed coworkers associated with Pu include Ahmadreza Danesh and Payam Heydari.

Conclusion

Haoran Pu’s patent presents an integrated approach to EEG recording that combines specialized signal amplification, active electrodes, and a streamlined cap connection to support more flexible and portable acquisition systems.