IEEE Awards Booklet - 2015 - 10

2015 ieee medals

IEEE Medal for Innovations
in Healthcare Technology

IEEE Jack S. Kilby
Signal Processing Medal

Sponsored by the IEEE Engineering
in Medicine and Biology Society

Sponsored by Texas Instruments, Inc.

takuo aoyagi

Harry l. van trees

For pioneering contributions to pulse oximetry that have had a profound impact
on healthcare

For fundamental contributions to detection, estimation, and modulation theory;
sensor array processing; and Bayesian
bounds

Takuo Aoyagi's development of the fundamental principles of
pulse oximetry has led to an indispensable clinical tool for noninvasive monitoring of blood oxygen levels that has improved
patient safety during anesthesia and practically all other facets of
healthcare. In 1972, while investigating a noninvasive cardiac output device, Dr. Aoyagi discovered that arterial pulsatile "noise"
interfering with the accurate dye dilution curve carried important information about the oxygenation of arterial blood. This
led him to establish the principle of pulse oximetry using light
signals of two different wavelengths. Based on his discovery, in
1975 he introduced the first commercially available pulse oximeter. Consisting of a probe containing a light-emitting device and
two photodetectors, Dr. Aoyagi's pulse oximeter could pass two
wavelengths of light through the earlobe to the photodetectors
to measure the changing absorbance at each of the wavelengths
based on pulsing arterial blood.The device's ability to rapidly and
noninvasively assess the hemodynamic and respiratory condition
of patients allows clinicians to detect abnormalities earlier and
avoid patient harm as well as gauge the effectiveness of clinical
interventions in real time. All of today's pulse oximeters are based
on Dr. Aoyagi's original principles of pulse oximetry. Dr. Aoyagi
has continued to advance the development of oxygen monitoring
technologies and inspire generations of medical technology innovators around the world. Pulse oximetry is now considered the
standard of care for patients undergoing anesthesia and for treatment in emergency rooms and intensive care units and for home
care. In 2007, the World Health Organization included pulse oximetry as an essential component of its Surgical Safety Checklist
for reducing complications.
An IEEE Member and recipient of the Gravenstein Lifetime
Achievement Award from the Society for Technology in Anesthesia (2013), Dr. Aoyagi is currently senior manager of the Aoyagi
Research Laboratory at Nihon Kohden Corporation, Nakanoku, Tokyo, Japan.

An internationally recognized expert in radar, sonar, communications, and signal processing, Harry L.Van Trees is considered one
of the founders of detection and estimation theory, which has
had important implications in engineering. After graduating from
West Point, serving in the U.S. Army, and receiving his Sc.D. from
MIT, he joined the faculty of the Electrical Engineering Department at MIT. First published in 1968-1971, Dr.Van Trees' threevolume series of textbooks on detection, estimation, and modulation theory provided a unified approach to communications,
radar, and sonar. Part I, the classic in the field, is used in graduate
schools around the world and has educated several generations of
engineers. Many of the current military radar, sonar, and missile
defense systems rely on the concepts in Dr. Van Trees' textbooks
and were designed by engineers educated with these books. Dr.
Van Trees used his expertise to oversee the implementation of
the theory in actual systems through a series of U.S. Department
of Defense positions: chief scientist of both the Defense Communications Agency and the U.S. Air Force, principle deputy assistant secretary of Defense (C3I), and acting assistant secretary
of defense (C3I). The fourth volume, Optimum Array Processing,
published in 2002, provides a comprehensive development of optimum array processing for students and practicing engineers. In
2013, he published the second edition of Part I (in collaboration
with Drs. Bell and Tian), which has been revised and expanded
so that it is the most extensive and up-to-date text in the field.
Dr.Van Trees was the originator of the family of Bayesian bounds.
The first bound, published in 1964, was the Bayesian version of
the classic Cramer-Rao bound, which provided the foundation
for the family of Bayesian bounds. In 2007, he collaborated with
Dr. Bell to publish Bayesian Bounds for Parameter Estimation and
Nonlinear Filter/Tracking.
An IEEE Life Fellow and a recipient of the Presidential Award
for Meritorious Executive (1980), Dr. Van Trees was elected to
the U.S. National Academy of Engineering in 2015. He is a University Professor Emeritus with George Mason University, Fairfax,VA, USA.

Scope: For outstanding contributions and/or innovations in engineering within the fields of medicine, biology, and healthcare
technology

Scope: For outstanding achievements in signal processing

10 | 2015 IEEE AWARDS BOOKLET



Table of Contents for the Digital Edition of IEEE Awards Booklet - 2015

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IEEE Awards Booklet - 2015 - 1
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