Pittsburgh, PA, United States

Carnegie Mellon University

www.cmu.edu
Pittsburgh, PA, United States

Carnegie Mellon University is a private research university in Pittsburgh, Pennsylvania.The university began as the Carnegie Technical Schools founded by Andrew Carnegie in 1900. In 1912, the school became the Carnegie Institute of Technology and began granting four-year degrees. In 1967, the Carnegie Institute of Technology merged with the Mellon Institute of Industrial Research to form Carnegie Mellon University. The university's 140-acre main campus is 3 miles from Downtown Pittsburgh and abuts the Carnegie Museums of Pittsburgh, the main branch of the Carnegie Library of Pittsburgh, the Carnegie Music Hall, Schenley Park, Phipps Conservatory and Botanical Gardens, the Pittsburgh Golf Club, and the campus of the University of Pittsburgh in the city's Oakland and Squirrel Hill neighborhoods, partially extending into Shadyside.Carnegie Mellon has seven colleges and independent schools: the Carnegie Institute of Technology , College of Fine Arts, Dietrich College of Humanities and Social science, Mellon College of Science, Tepper School of Business, H. John Heinz III College and the School of Computer Science. Carnegie Mellon fields 17 varsity athletic teams as part of the University Athletic Association conference of the NCAA Division III. Wikipedia.

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Patent
Carnegie Mellon University and University of Pittsburgh | Date: 2017-01-24

Artificial heart valve structures and methods of their fabrication are disclosed. The heart valve structures may be fabricated from a biocompatible polymer and include one or more heart valve leaflet structures incorporated within a conduit. The valve structures may incorporate one or more conduit sinuses, as well as a gap between the lower margin of the valve leaflets and the interior of the conduit. In addition, the valve structures may include one or more valve sinuses created in a space between the valve leaflets and the conduit inner surface. Computational fluid dynamics and mechanical modeling may be used to design the valve leaflets with optimal characteristics. A heart valve structure may also incorporate a biodegradable component to which cells may adhere The incorporated cells may arise from patient cells migrating to the biodegradable component, or the component may be pre-seeded with cells prior to implantation in a patient.


Patent
Carnegie Mellon University | Date: 2017-02-10

Local swing leg control was developed that takes advantage of segment interactions to achieve robust leg placement under large disturbances while generating trajectories and joint torque patterns similar to those observed in human walking and running. The results suggest the identified control as a powerful alternative to existing swing leg controls in humanoid and rehabilitation robotics. Alternatively, a detailed neuromuscular model of the human swing leg was developed to embody the control with local muscle reflexes. The resulting reflex control robustly places the swing leg into a wide range of landing points observed in human walking and running, and it generates similar patterns of joint torques and muscle activations. The results suggest an alternative to existing swing leg controls in humanoid and rehabilitation robotics which does not require central processing.


Patent
Carnegie Mellon University | Date: 2017-02-01

An articulated probe (10), comprising: a first mechanism (12, 14) comprised of a plurality of links; a second mechanism (12, 14) comprised of a plurality of links; a first wire extending through either said plurality of links of said first mechanism (12, 14) or said plurality of links of said second mechanism (12, 14) and a plurality of wires running through the other of said plurality of links of said first mechanism (12, 14) or said plurality of links of said second mechanism (12, 14); a device for producing command signals; and an electromechanical feeder (16) responsive to said command signals, said electromechanical feeder (16) capable of alternating each of said first mechanism (12) and second mechanism (14) between a limp mode and a rigid mode and comprising: a first motor for controlling the tension of said first wire or said plurality of wires, one of said first mechanism or said second mechanism being responsive to said first motor; and a second motor for controlling the tension of the other of said first wire or said plurality of wires, the other of said first mechanism or said second mechanism being responsive to said second motor and a method of moving the articulated probe.


The present invention is a palm rejection technique utilizing temporal features, iterative classification, and probabilistic voting. Touch events are classified based on features periodically extracted from time windows of increasing size, always centered at the birth of the event. The classification process uses a series of decision trees acting on said features.


Patent
Carnegie Mellon University | Date: 2017-02-15

The present invention relates generally to a pulmonary assist device comprising a housing having tapered inlets and outlets to distribute blood evenly over a fiber bundle. The fiber bundle has a relatively low packing density to prevent the formation of clots. The invention is adapted to be used with a pump or without a pump, in which the heart supplies the necessary blood flow. Moreover, the device can be used as a single module or as multiple modules arranged in parallel.


This invention relates to a system and method for detecting the curved surfaces of fruit using a flash and camera system and automated image analysis. Lighting upon fruit is controlled, with a flash or multiple flashes positioned beside the camera illuminate the fruit. The flash causes a strong specular reflectance at the center of curved fruit (such as apples, grapes, or avocados, among others). From this point of specular reflectance, pixel intensity decreases steadily toward the edges of curved fruit. The method searches the images to find points of specular reflectance surrounded by curved shaded regions belonging to the curved fruit and can detect fruit of various sizes and scales within image.


An approach to modeling the nonlinear steady-state behavior of an electrical power grid in terms of equivalent circuits with currents and voltages as state variables is provided. Current and voltage conservation equations are formulated with circuit-theoretic algorithms that offer demonstrably superior robustness relative to traditional approaches. Generalized bus and line models are accommodated by the equivalent circuit-based approach, allowing for simulation of physical models not compatible with traditional methods. Unbalanced three-phase systems are handled without loss of generality. The provided methods allow for robust, efficient power flow simulation for contingency analysis, power system planning, power system design, power system control, component configurations and operating conditions, real-time scheduling, and optimization, among other applications.


Patent
Carnegie Mellon University and Deere & Company | Date: 2017-04-26

Disclosed herein is a system (11) for evaluating agricultural material which comprises, in one embodiment, a housing (102) having a passage (104) in or through an interior (106) of the housing (102) with an inlet (108) for receiving agricultural material and an outlet (110) for outputting the agricultural material. The system further comprises a wall opening (112) in a wall (109) of the passage. An imaging device (116) having a lens (118) is located inward from a border (120) of the imaging device. The imaging device (116) is pivotally mounted for rotation with respect to a housing (102) such that in a closed state the border (120) of the imaging device rests on, engages or interlocks the wall opening (112) of the housing (102), and in an open state the border (120) exposes the wall opening (112) and an interior (106) of the housing (102).


Patent
Carnegie Mellon University and Deere & Company | Date: 2017-04-26

Disclosed herein is a diagnostic module configured to determine an average image of a set or a sequence of collected images, to obtain a last image of the set or the sequence of collected images, and to determine a difference between the average image and the last image to yield a differenced image. Background image data or background pixels are eliminated from the differenced image to produce an initial image mask of unchanged content in the last image. A diagnostic module or data processor determines a mask area of the initial image mask or a revised image mask derived from the initial image mask. A diagnostic module or data processor generates an alert data message to inspect or clean the imaging system if the mask area exceeds a threshold area.


Patent
Carnegie Mellon University | Date: 2017-04-05

Systems and methods are provided for an electro-mechanical system. A system includes a plurality of connected modules. A first module of the modules includes an actuator for imparting motion on the electro-mechanical system and a data processor configured to sense a state of the first module and to command the actuator to modify the state of the first module.

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