Abstract: A method to increase the image formation speed in a digital ultrasound system including annular array of N elements with a plurality of transmit and receive channels. Selectively dropping one or more transmit or receive channels during image formation reduces the amount of data needed to form an image and thus increases the image formation frame rate. The improved frame rate does result in some reduction in resolution, SNR and potentially DOF, but image quality remains at an acceptable level.
Abstract: Analysis of executable binary code is performed without detection by defensive elements embedded within the executable binary code or within a system in which the executable binary code is executing. An identified suspect executable file is disassembled. Statically and dynamically analysis is performed on binary code of the disassembled executable file. An anti-anti-debugging function is implemented by executing program call functions in a manner which avoids detection of a debugging program by the defensive elements embedded within the executable binary code of the anti-debugging function of the executable binary code, thereby avoiding detection by the source of the suspect executable file.
Abstract: A method and an apparatus for applying a therapeutic substance to body tissue are provided in which ultrasonic radiation is used. The method allows the application of medication to be tailored to the needs of an individual patient. In particular, the timing, duration, intensity, and concentration of the application of medication can be adjusted according to individual requirements. Side effects of tissue adjacent to tissue in need oThe invention described herein was made in the course of work under a grant from the National Institute of Health.
Type:
Grant
Filed:
February 20, 1990
Date of Patent:
May 21, 1991
Assignee:
Riverside Research Institute
Inventors:
Jack Driller, William J. Faulkenberry, Frederic L. Lizzi
Abstract: A system is described for obtaining in real-time cross-sectional and 3-dimensional images of a body under study using ultrasonic energy. A piezoelectric transducer is positioned to emit ultrasonic energy and receive echo pulses. The transducer is electronically swept or physically rotated to produce a series of sectored scan planes which are separated by a known angular distance. The echo pulses are processed to produce an ultrasonic image in pseudo 3-dimensional display. By using data from one scan plane, processed as a B-scan image, cross-sectional data can be obtained. Such is combined in a display with an overlay to visually portray the object and positioning information or comparative data. The system is combined with a computer for data analysis and a therapeutic transducer for treatment.
Type:
Grant
Filed:
November 2, 1987
Date of Patent:
June 12, 1990
Assignees:
Cornell Research Foundation, Inc., Riverside Research Institute
Abstract: An ultrasound system that enables determination of layer thicknesses and contours of a multi-layer organic body includes a transmitter/receiver for obtaining a radio frequency signal from echoes over a plurality of points on the organic surface. Each radio frequency signal is then deconvolved to remove apparatus generated noise and filtered to create an analytic signal that exhibits a magnitude related to an instantaneous rate of arrival of total echo energy received by the transmitter/receiver. Analytic signals from adjacent parallel scans are then cross-correlated and magnitude detected to determine energy peaks to enable accurate determination of echo producing surfaces of each layer of the multi-layer organic body across the plurality of interrogation points. In the application of the invention to Corneal Epithelium Mapping, a pupil monitoring system is included that disables the measurement system if the pupil's gaze wanders so as to cause a diversion of the optical axis.
Type:
Grant
Filed:
July 9, 1993
Date of Patent:
March 15, 1994
Assignees:
Cornell Research Foundation Inc., Riverside Research Institute
Inventors:
Dan Z. Reinstein, Ronald H. Silverman, Donald J. Coleman, Frederic L. Lizzi
Abstract: Radiation pulses from a high energy therapeutic ultrasound system are used to stimulate tissue motion by radiation pressure. The tissue motion is monitored using a diagnostic ultrasound system.
Abstract: A spherical cap transducer is provided with at least one electrode formed as segments. The segments are selectively driven to provide asymmetrical ovoid effective radiation patterns for treatment of tissue with ultrasonic radiation.
Abstract: Fuel injectors of varying modes, shear or thickness, and megahertz are used to reduce the size of fuel droplets. The fuel injector has an expansion chamber and an orifice-containing face plate with a porous PZT material arranged adjacent to the face plate. The fuel passes through the porous PZT material as the PZT material is energized to realize reduced fuel particle size.
Abstract: A method for self-referencing holography makes use of multiple object illuminations with different and non-uniform intensity of radiation to produce multiple holograms from the scattered radiation. Analysis of the multiple holograms provides an unambiguous image of the object.
Type:
Grant
Filed:
April 5, 1988
Date of Patent:
December 26, 1989
Assignee:
Riverside Research Institute
Inventors:
Marek Elbaum, Dina Gutkowicz-Krusin, Jerzy Nowakowski
Abstract: Diagnostic ultrasound is used to measure distance from a transducer to selected tissue structure. In one arrangement, the focal point of a high intensity focused ultrasound transducer is adjusted in accordance with measured distance to the selected tissue structure. In a second arrangement a transducer transport apparatus moves a transducer to maintain a selected distance from tissue structure.
Type:
Grant
Filed:
May 14, 2003
Date of Patent:
January 25, 2005
Assignee:
Riverside Research Institute
Inventors:
Frederic L. Lizzi, Jeffrey A. Ketterling, Robert Muratore
Abstract: Systems and methods for integrate satellite communications. A network of upward facing antennas placed on top of cell phone towers is established. Each upward facing antenna has a footprint at the altitude of a particular satellite orbit. Upward facing antennas are placed on cell towers so as to establish a continuous coverage over the orbit of a satellite (s) thereby allowing continuous communication using cellular technology with the satellite(s) on orbit.
Abstract: Systems and methods for integrate satellite communications. A network of upward facing antennas placed on top of cell phone towers is established. Each upward facing antenna has a footprint at the altitude of a particular satellite orbit. Upward facing antennas are placed on cell towers so as to establish a continuous coverage over the orbit of a satellite(s) thereby allowing continuous communication using cellular technology with the satellite(s) on orbit.
Abstract: An ultrasonic wave transducer is formed from a body of piezoelectric material having nonuniform thickness. Each location on the transducer is resonant at a different frequency according to the thickness at that point. By changing the frequency of the applied excitation signal, the origin and direction of the radiation can be altered.
Abstract: An ultrasonic material-evaluation or classification method using spectral and envelope-statistics variables from backscattered ultrasound echo signals combined with global variables. This classification method can be applied to any organ or tissue among biological materials and any non-biological material that produces backscattered signals as a result of microscopic internal inhomogeneities such as a crystalline structure.
Abstract: An ultrasonic material-evaluation or classification method using spectral and envelope-statistics variables from backscattered ultrasound echo signals using an adaptive-bandwidth and combined with global variables. This classification method can be applied to any organ or tissue among biological materials and any non-biological material that produces backscattered signals as a result of microscopic internal in homogeneities such as a crystalline structure.
Type:
Application
Filed:
January 19, 2018
Publication date:
May 24, 2018
Applicant:
Riverside Research Institute
Inventors:
Ernest J. Feleppa, Jonathan Mamou, Daniel Rohrbach
Abstract: Systems and methods for integrate satellite communications. A network of upward facing antennas placed on top of cell phone towers is established. Each upward facing antenna has a footprint at the altitude of a particular satellite orbit. Upward facing antennas are placed on cell towers so as to establish a continuous coverage over the orbit of a satellite(s) thereby allowing continuous communication using cellular technology with the satellite(s) on orbit.
Abstract: An ultrasonic transducer assembly is provided with transducers for both therapeutic and diagnostic ultrasonic radiation. A moveable seal permits adjustment and alignment of the two transducer units in a fluid medium. In addition, there is provided a light beam directed along the axis of the ultrasonic radiation. The transducer assembly is particularly useful for ophthalmic therapy.
Type:
Grant
Filed:
March 1, 1982
Date of Patent:
November 27, 1984
Assignee:
Riverside Research Institute
Inventors:
Jack Driller, William G. Henriksen, D. Jackson Coleman, Frederic L. Lizzi
Abstract: Systems and methods for integrate satellite communications. A network of upward facing antennas placed on top of cell phone towers is established. Each upward facing antenna has a footprint at the altitude of a particular satellite orbit. Upward facing antennas are placed on cell towers so as to establish a continuous coverage over the orbit of a satellite(s) thereby allowing continuous communication using cellular technology with the satellite(s) on orbit.
Abstract: A phased array antenna system compensates for the effects of antenna flexure, vibration and movement, and thereby negates these effects by introducing an appropriate phase or time delay into the signals being radiated from and received by the discrete antenna elements comprising the phased array antenna. This compensation eliminates the need for massive rigid back structures to maintain antenna rigidity, which thereby simplifies antenna design.