Henry D I Abarbanel

Title: The Innovations of Henry D I Abarbanel

Introduction

Henry D I Abarbanel is a notable inventor based in Del Mar, California. He has made significant contributions to the field of signal processing and communication systems. With a total of 2 patents, Abarbanel's work has advanced the technology used in recording and playback systems.

Latest Patents

One of Abarbanel's latest patents is titled "Multilevel signal equalization utilizing nonlinear maps." This invention enhances information storage in recording/playback systems by employing a 4-level biased magnetic recording technique. The maximum amplitude of the 4-level recording signal drives the medium's magnetization into a nonlinear region of its transfer function. Although the bias does not eliminate distortion at maximum signal input levels, it improves the system's signal-to-noise ratio. This is achieved through an increase in the amplitude of the playback signal, resulting from the higher recording level. The nonlinear mapping capability of a neural network allows for equalization of playback signals that are distorted due to record/playback nonlinearity. The 4-level recorded signals provide a factor of 2 in information storage compared to binary recording, and when combined with quadrature amplitude modulation (QAM), it results in an additional factor of 2, leading to a total factor of 4 in the information content stored.

Another significant patent by Abarbanel is the "Chaotic carrier pulse position modulation communication system and method." This system includes a transmitter and receiver equipped with matched chaotic pulse regenerators. The receiver's chaotic pulse regenerator produces a synchronized replica of a chaotic pulse train generated by the transmitter. The pulse train from the transmitter serves as a carrier signal, with data encoded by selectively altering the interpulse timing between pulses in the chaotic pulse train. The altered pulse train is transmitted as a pulse signal, allowing the receiver to detect any changes in the interpulse intervals by referencing the synchronized replica it generates.

Career Highlights

Abarbanel has worked with prestigious institutions, including the University of California and Applied Nonlinear Sciences, LLC. His work has been instrumental in advancing the understanding and application of nonlinear systems in technology.

Collaborations

Throughout his career, Abarbanel has collaborated with notable individuals such as Nikolai F Rulkov and Mikhail M Sushchik. These collaborations have contributed to the development of innovative