1
Ramez E N Shehada, Vasilis Z Marmarelis, Warren S Grundfest: Method and devices for laser induced fluorescence attenuation spectroscopy. Cedars Sinai Medical Center, Pretty Schroeder & Poplawski, September 26, 2000: US06124597 (403 worldwide citation)

The Laser Induced Fluorescence Attenuation Spectroscopy (LIFAS) method and apparatus preferably include a source adapted to emit radiation that is directed at a sample volume in a sample to produce return light from the sample, such return light including modulated return light resulting from modula ...


2
Ramez E N Shehada, Vasilis Z Marmarelis, Warren S Grundfest: Method and devices for laser induced fluorescence attenuation spectroscopy (LIFAS). Cedars Sinai Medical Center, Mintz Levin Cohn Ferris Glovsky & Popeo PC, February 24, 2004: US06697657 (322 worldwide citation)

Methods and devices for Laser Induced Fluorescence Attenuation Laser Induced Fluorescence Attenuation Spectroscopy (LIFAS) Spectrocopy, including, in particular, methods and devices for the detection of ischemia and hypoxia in biological tissue. The LIFAS method and apparatus preferably include a so ...


3
Vasilis Z Marmarelis, Chrysostomos L Nikias, Dae Cheol Shin: Method and apparatus for situationally adaptive processing in echo-location systems operating in non-Gaussian environments. Multispec Corporation, Price Gess & Ubell, March 28, 2000: US06044336 (30 worldwide citation)

A signal processing method for use in echo-location systems (radar, sonar, laser radar) to obtain accurate estimates of the target reflectivity sequence in a random (non-Gaussian) noise environment, including ambient noise, reverberation, and clutter. The method derives the statistical characteristi ...


4
Vasilis Z Marmarelis: High-resolution 3D ultrasonic transmission imaging. Alfred E Mann Institute for Biomedical Engineering at the University of Southern California, McDermott Will & Emery, August 22, 2006: US07094205 (25 worldwide citation)

A system for providing high resolution imaging of objects having sub-millimeter dimensions comprised of at least one transmitter, at least one receiver, a coupling chamber, and a processor for recording attenuation and time of flight profiles of the transmitted signals. The signals are conditioned i ...


5
Vasilis Z Marmarelis: Multi-mode processing for ultrasonic imaging. Alfred E Mann Institute for Biomedical Engineering at the University of Southern California, McDermott Will & Emery, August 17, 2004: US06776760 (24 worldwide citation)

Systems and methods for obtaining images of body organs or other tissue for each of their multiple characterizing aspects, and for classifying different tissue types within the images according to their characterizing aspects, are disclosed herein. The tissue may be irradiated with an ultrasonic sig ...


6
Chrysostomos L Nikias, Vasilis Z Marmarelis, Dae Cheol Shin: Method for automatic focusing of radar or sonar imaging systems using high-order measurements. MultiSpec Corporation, Price Gess & Ubell, March 14, 2000: US06037892 (20 worldwide citation)

Automatic focusing of radar or sonar imaging systems, for example, synthetic aperture radar (SAR) or synthetic aperture sonar (SAS) systems, is accomplished by using high order measurements, such as the quadruple product of the range compressed signal g(x). The phase error is estimated by a recursiv ...


7
Vasilis Z Marmarelis, Chrysostomos L Nikias, David Sheby: Method and apparatus for enhanced resolution of range estimates in echo location for detection and imaging systems. Multispec Corporation, Price Gess & Ubell, June 2, 1998: US05760732 (18 worldwide citation)

A method and apparatus for enhancing resolution of range estimates in all echo location systems and, specifically, such systems as Radar, Sonar, and Synthetic Aperture Radar (SAR), for example. The invention utilizes high order signal processing to "sharpen" or contract the main lobe of the processi ...


8
Vasilis Z Marmarelis, Chrysostomos L Nikias, David Sheby: Process and apparatus for improved interference suppression in echo-location and imaging systems. Multispec Corporation, Price Gess & Ubell, August 4, 1998: US05790475 (1 worldwide citation)

In echo-location and imaging systems, interference suppression is accomplished by shaping the transmitted signal waveform. Interference suppression permits more accurate range estimates or image formation, respectively. These specially shaped waveforms can also be used in communication systems to se ...


9
Ramez E N Shehada, Vasilis Z Marmarelis, Warren S Grundfest: Method and devices for laser induced fluorescence attenuation spectroscopy. Cedars Sinai Medical Center, Knobbe Martens Olsen & Bear, June 5, 2007: USRE039672

The Laser Induced Fluorescence Attenuation Spectroscopy (LIFAS) method and apparatus preferably include a source adapted to emit radiation that is directed at a sample volume in a sample to produce return light from the sample, such return light including modulated return light resulting from modula ...


10
Dong Song, Vasilis Z Marmarelis, Theodore W Berger: Modeling nonlinear systems. University of Southern California, Fish & Richardson P C, June 11, 2013: US08463582

Systems and techniques, including machine-readable instructions, for modeling of nonlinear systems. In one aspect, an apparatus includes a collection of two or more inputs configured and arranged to receive input signals, a collection of two or more outputs configured and arranged to output output s ...