The Regents of the University of California - Oakland CA
International Classification:
A61B 500
US Classification:
600407, 600439, 600443, 601 2, 73602
Abstract:
Method and system disclosed herein include noninvasively detecting, separating and destroying multiple masses (tumors, cysts, etc. ) through a plurality of iterations from tissue (e. g. , breast tissue). The method and system may open new frontiers with the implication of noninvasive treatment of masses in the biomedical area along with the expanding technology of acoustic surgery.
James V. Candy - Danville CA, US Alan W. Meyer - Danville CA, US
Assignee:
Lawrence Livermore National Security, LLC - Livermore CA
International Classification:
H04L 27/00
US Classification:
375259, 375346, 375347, 375348, 375349
Abstract:
A system of transmitting a signal through a channel medium comprises digitizing the signal, time-reversing the digitized signal, and transmitting the signal through the channel medium. The channel medium may be air, earth, water, tissue, metal, and/or non-metal.
Multi-Channel Time-Reversal Receivers For Multi And 1-Bit Implementations
James V. Candy - Danville CA, US David H. Chambers - Livermore CA, US Brian L. Guidry - Tracy CA, US Andrew J. Poggio - Livermore CA, US Christopher L. Robbins - Livermore CA, US
Assignee:
Lawrence Livermore National Security, LLC - Livermore CA
International Classification:
H04L 27/00
US Classification:
375259, 375346
Abstract:
A communication system for transmitting a signal through a channel medium comprising digitizing the signal, time-reversing the digitized signal, and transmitting the signal through the channel medium. In one embodiment a transmitter is adapted to transmit the signal, a multiplicity of receivers are adapted to receive the signal, a digitizer digitizes the signal, and a time-reversal signal processor is adapted to time-reverse the digitized signal. An embodiment of the present invention includes multi bit implementations. Another embodiment of the present invention includes 1-bit implementations. Another embodiment of the present invention includes a multiplicity of receivers used in the step of transmitting the signal through the channel medium.
Physics-Based Signal Processing Algorithms For Micromachined Cantilever Arrays
James V. Candy - Danville CA, US David S. Clague - Livermore CA, US Christopher L. Lee - Oakland CA, US Robert E. Rudd - Livermore CA, US Alan K. Burnham - Livermore CA, US Joseph W. Tringe - Walnut Creek CA, US
Assignee:
lawrence Livermore National Security, LLC. - Livermore CA
International Classification:
G01N 9/00 G01N 31/00
US Classification:
73 2321, 702 27, 702 32
Abstract:
A method of using physics-based signal processing algorithms for micromachined cantilever arrays. The methods utilize deflection of a micromachined cantilever that represents the chemical, biological, or physical element being detected. One embodiment of the method comprises the steps of modeling the deflection of the micromachined cantilever producing a deflection model, sensing the deflection of the micromachined cantilever and producing a signal representing the deflection, and comparing the signal representing the deflection with the deflection model.
James Candy - Danville CA, US David Chambers - Livermore CA, US
Assignee:
The Regents of the University of California
International Classification:
A61H001/00
US Classification:
601/002000
Abstract:
Noninvasively focusing acoustical energy on a mass such as a tumor within tissue to reduce or eliminate the mass. The presence of the mass in the tissue is detected by applying acoustic energy to the substance. The mass is localized to determine its position. Temporal signatures are developed to drive the acoustical energy on the mass. Dynamic focusing of the acoustical energy on the mass to reduce or eliminate it is accomplished utilizing the temporal signatures.
James Candy - Danville CA, US David Chambers - Livermore CA, US
International Classification:
A61N 7/00
US Classification:
601002000
Abstract:
Noninvasively focusing acoustical energy on a mass such as a tumor within tissue to reduce or eliminate the mass. The presence of the mass in the tissue is detected by applying acoustic energy to the substance. The mass is localized to determine its position. Temporal signatures are developed to drive the acoustical energy on the mass. Dynamic focusing of the acoustical energy on the mass to reduce or eliminate it is accomplished utilizing the temporal signatures
Physics-Based, Bayesian Sequential Detection Method And System For Radioactive Contraband
James V. Candy - Danville CA, US Michael C. Axelrod - San Ramon CA, US Eric F. Breitfeller - Dublin CA, US David H. Chambers - Livermore CA, US Brian L. Guidry - Livermore CA, US Douglas R. Manatt - Livermore CA, US Alan W. Meyer - Danville CA, US Kenneth E. Sale - Castro Valley CA, US
International Classification:
G06N 5/02
US Classification:
706 52
Abstract:
A distributed sequential method and system for detecting and identifying radioactive contraband from highly uncertain (noisy) low-count, radionuclide measurements, i.e. an event mode sequence (EMS), using a statistical approach based on Bayesian inference and physics-model-based signal processing based on the representation of a radionuclide as a monoenergetic decomposition of monoenergetic sources. For a given photon event of the EMS, the appropriate monoenergy processing channel is determined using a confidence interval condition-based discriminator for the energy amplitude and interarrival time. If accepted the parameter values of the photon event are used to update the parameter values using an LKF for the energy amplitude and a bootstrap PF for the interarrival times. These parameter estimates are then used to update a measured probability density function estimate for a target radionuclide. A a sequential likelihood ratio test, which is based in part on a previous sequential likelihood ratio for a previous photon event, the updated measured PDF estimates, and the an a-priori PDF estimates based on expected amplitude level and interarrival time values of the target radionuclide, is then used to determine one of two threshold conditions signifying that the EMS is either identified as the target radionuclide or as not the target radionuclide, and if not, then repeating the process with for the next sequential photon event of the EMS until one of the two threshold conditions is satisfied.
Vehicle Sensing System Utilizing Smart Pavement Markers
A roadway system is described, consisting of enhance, smart pavement markers. These smart pavement markers contain elements such as motion sensors, solar cells, radio receiver/transmitters, active lighting and processing capability. These markers can be configured in many ways, including as vehicle speed sensors, and information display systems. Such pavement marker systems can be installed with little or no roadway infrastructure preparation and may be useful for traffic data collection, law enforcement, and vehicle safety applications.
Candy was born in the suburban town of Newmarket, Ontario, son of Sidney James Candy and his wife Evangeline (Aker) Candy. He had an older brother, ...
Isbn (Books And Publications)
Oversampling Delta-Sigma Data Converters: Theory, Design, and Simulation