Abstract: An optical vortex coronagraph scatterometer including a light source of wavelength ?, a scattering cell in optical communication with the light source, a circular aperture having a radius R at a distance d from the scattering cell in optical communication with the light source, a pivot point between the circular aperture and the scattering cell allowing relative movement of the light source and the scattering cell with respect to the circular aperture, a first lens at a focal length f1 between the circular aperture and an optical vortex element, and a second lens at a focal length f2 between the optical vortex element and a detector; and method for determining a scattering spectra at low and zero angles is disclosed.
Abstract: Disclosed is a method and system for passively aligning optical fibers (4), a first waveguide array (62), and a second waveguide array (42) using chip-to-chip vertical evanescent optical waveguides (44) and (64), that can be used with fully automated die bonding equipment. The assembled system (2, 30, 60) can achieve high optical coupling and high process throughput for needs of high volume manufacturing of photonics, silicon photonics, and other applications that would benefit from aligning optical fibers to lasers efficiently.
Type:
Application
Filed:
July 19, 2017
Publication date:
August 15, 2019
Applicants:
Indiana Integrated Circuits, LLC, Rochester Institute of Technology, MRSI Systems, LLC
Inventors:
Jason M. KULICK, Yi QIAN, Stefan PREBLE, Jeffrey STEIDLE, Michael FANTO, Tian LU
Abstract: A method for capturing a high-quality cardiac plethysmography signal automatically and seamlessly using the video cameras embedded in personal electronic devices, includes a program running in the background that periodically takes a picture of the person using the device, runs face detection and/or recognition algorithm, and upon detection of a face, records a video, and then processes the video using algorithms to assess video quality by extracting video quality parameters. When video quality parameters are above predefined thresholds, the recorded video is processed further to generate a plethysmography signal indicative of cardiac activity. The plethysmography signal may then be processed to deduce cardiac activity. The method maintains a pleasurable user experience with the personal electronic devices.
Abstract: Apparatus, system and method for medical analysis of a seated individual, includes determining the aortic valve opening; the PTT; and calculating the PWV. Determining the aortic valve opening includes collecting BCG data while sitting on a seat and determining the timing of the aortic valve opening, taking into account posture. Measuring the aortic pulse wave transit time includes collecting BCG data while sitting on a seat capable of measuring changes in apparent weight; determining the timing of the aortic valve opening; detecting the arrival of the pulse wave at the end point; and measuring the relative timings of the two events. Calculating the PWV includes determining a length of the arterial segment through which a pulse wave is to be measured between a start point and an end point; and dividing the determined length of the arterial segment by the PTT.
Type:
Application
Filed:
April 8, 2019
Publication date:
August 1, 2019
Applicant:
Rochester Institute of Technology
Inventors:
David A. Borkholder, Nicholas J. Conn, Masoumeh Haghpanahi
Abstract: Porous metal coatings are produced by multi-step electrodeposition method involving application of higher current density at lower duration and lower current density for longer durations. During higher current step, the evolved hydrogen bubbles serve as the self-collapsing templates to deposit the metal ions and during lower current density at longer duration step, the coating is applied to improve the bond strength. The multi-step depositions by alternating these steps provides the development of more complex porous structures that can have desired interconnectivity between the pores and have desired morphology, and desired wettability and wickability characteristics, and have a good bond strength between the coated layers as well as coated layers and the base substrate.
Type:
Application
Filed:
January 23, 2019
Publication date:
July 25, 2019
Applicant:
Rochester Institute of Technology
Inventors:
Anju Gupta, Satish G. Kandlikar, Aniket M. Rishi
Abstract: A system and method include contactless detecting and tracking cardiac activity by making use of a feedback control system, such as a Phase Locked Loop (PLL), in real-time or from a prerecorded signal stream.
Abstract: Apparatus, system and method for medical analysis of a seated individual, includes determining the aortic valve opening; the PTT; and calculating the PWV. Determining the aortic valve opening includes collecting BCG data while sitting on a seat and determining the timing of the aortic valve opening, taking into account posture. Measuring the aortic pulse wave transit time includes collecting BCG data while sitting on a seat capable of measuring changes in apparent weight; determining the timing of the aortic valve opening; detecting the arrival of the pulse wave at the end point; and measuring the relative timings of the two events. Calculating the PWV includes determining a length of the arterial segment through which a pulse wave is to be measured between a start point and an end point; and dividing the determined length of the arterial segment by the PTT.
Type:
Grant
Filed:
June 23, 2016
Date of Patent:
May 21, 2019
Assignee:
Rochester Institute of Technology
Inventors:
David A. Borkholder, Nicholas J. Conn, Masoumeh Haghpanahi
Abstract: A dosimetry apparatus includes at least one sensor in a housing, a cover configured to permit compression waves to pass through, the cover is seated over the at least one sensor, and a dosimetry processing device with a memory. The dosimetry processing device is coupled to the at least one sensor in the housing. The dosimetry processing device is configured to execute programmed instructions stored in the memory comprising: obtaining readings from the at least one sensor; storing the readings with a time and date stamp when obtained; conducting an analysis based on the obtained readings; and outputting at least one of the stored readings or the conducted analysis.
Type:
Grant
Filed:
February 10, 2012
Date of Patent:
May 21, 2019
Assignee:
ROCHESTER INSTITUTE OF TECHNOLOGY
Inventors:
David A. Borkholder, Werner Fassler, Andrew Blair, Kim Sherman, Derek DeBusschere
Abstract: A motorized and controllable wheel system for a non-motorized stander is disclosed. Micro-controllers are programmed to be capable of acquiring and processing multiple inputs from the user and therapist and controlling the motors. Additional sensors are implemented in order to enhance safety and provide some device autonomy with the goal of providing a device that improves the mobility, autonomy, and educational experience of children.
Abstract: Disclosed are methods for determining physiological parameters of an individual including blood pressure, arterial compliance, flow velocity, and pressure wave velocity. A noninvasive method for determining the blood pressure of a patient is based on measurements of flow velocity, pulse wave velocity and arterial compliance. A noninvasive method for determining the arterial compliance of a patient is based on measurements of blood pressure, flow velocity, and pulse wave velocity.
Type:
Application
Filed:
November 17, 2015
Publication date:
March 21, 2019
Applicant:
Rochester Institute of Technology
Inventors:
David A. Borkholder, Alexander S. Liberson, Jeffrey S. Lillie, Steven W. Day
Abstract: A foaming process for converting fibrous material into a cellular foam structure includes mixing fibrous material and a solvent-based binding agent to form a mixture; saturating the mixture with a pressurized gas to form a gas-saturated mixture; expanding the gas-saturated mixture by reducing the pressure of the pressurized gas to form an expanded mixture with voids in the fibrous material; and curing the expanded mixture to set the fibrous material and drive off the solvent to provide a stable network of fibrous material having cushioning properties.
Type:
Application
Filed:
September 5, 2018
Publication date:
March 7, 2019
Applicant:
Rochester Institute of Technology
Inventors:
Changfeng Ge, Mark Olles, Kevin Cosgrove, Carlos A. Diaz
Abstract: A platform and method for administering a digital behavioral health treatment to an individual, includes customizing and personalizing a digital avatar health coach and an interactive therapy platform of evidenced based cognitive behavioral therapy which targets and treats maladaptive behaviors in the individual to improve treatment outcomes, wherein the digital platform is standardized and specific to target specific maladaptive behaviors and implements positive, healthier, and prosocial behaviors incorporating the mechanisms of social learning theory, classical conditioning, and operant conditioning.
Abstract: A spectrally selective (e.g., color) target has been designed and fabricated for reflectance micro- and/or macro-imaging that utilizes microlens arrays and color mirrors. The color mirrors are optical interference coatings. The microlenses are designed and fabricated such that the light reflected from the color mirror is incident onto the detector. This system of microlenses and color mirrors allows the user to image different colored specular highlights. An infinite number of spectral reflectance profiles can be created with these color targets and used for spectral and colorimetric imaging applications. The targets are not limited to the visible region; they can also be designed to work in the ultraviolet and infrared wavelength regions.
Type:
Grant
Filed:
November 5, 2015
Date of Patent:
January 29, 2019
Assignee:
Rochester Institute of Technology
Inventors:
Jennifer D. T. Kruschwitz, Roy S. Berns
Abstract: An electrochemical cell having a positive electrode; a negative electrode and an electrolyte, wherein the electrochemical cell contains reversible ions in an amount sufficient to maintain a negative electrode potential verses reference level below a negative electrode damage threshold potential of the cell and a positive electrode potential verses reference level above a positive electrode damage threshold potential of the cell under an applied load at a near zero cell voltage state, such that the cell is capable of recharge from the near zero cell voltage state, and method for its production is disclosed.
Abstract: A heat transfer system including a fluid inlet; a fluid outlet; and a substrate in fluid communication with the fluid inlet and fluid outlet, the substrate including a heat exchange region having a heat transfer surface and a flow field adjacent the heat transfer surface, the flow field including a fluid flow area including an open region at the inlet, a heat transfer region in thermal communication with the heat exchange region, and a taper of the flow field cross-sectional area in the flow direction, wherein the flow field heat transfer region includes a plurality of spaced apart open enhancement features from 1 micron to 3 mm in size, and method for enhancing the heat transfer performance of an apparatus is disclosed.
Abstract: A method and system for monitoring a signal from a function to record a set of values for each signal monitored; determining for each signal monitored the relative value of the signal being monitored over time; identifying each signal exhibiting a relative value representing a change in a pre-identified direction and each signal exhibiting a relative value not representing a change in the pre-identified direction, wherein each signal is aligned in the same direction relative to the pre-identified direction; dynamically weighting at least one signal monitored; displaying the monitored signals as an aggregate including enhancement of each signal exhibiting a change in the pre-identified direction; and causing a desired change in at least one monitored function based upon feedback of the displayed aggregate signals.
Type:
Grant
Filed:
June 16, 2015
Date of Patent:
October 2, 2018
Assignee:
Rochester Institute of Technology
Inventors:
Laurence I. Sugarman, Brian L. Garrison, Stephen Jacobs
Abstract: Material properties are manipulated using rapid pulse application of energy in combination with applied electric or magnetic fields. When sintering, annealing or crystallizing a target film, the pulse repetition cycle can be constrained to ensure material temperature rises above and falls below the Curie temperature before the next energy pulse. This process results in enhanced material properties as compared to traditional techniques having a single, slow temperature excursion and subsequent application of the applied external field.
Type:
Application
Filed:
March 19, 2018
Publication date:
September 20, 2018
Applicant:
Rochester Institute of Technology
Inventors:
David A. Borkholder, Jing Ouyang, Denis R. Cormier, Ahmed Alfadhel