Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor comprising a light emitting element configured to emit light, a light detector configured to detect the light, and a memory storing an optical shunting measurement for the oximeter sensor.

Abstract: There is provided a system for comparing the phase characteristics of three generated clock signals, each having a unique phase relationship with an original clock signal, with the original clock signal and to select a signal based on the proximity of the phase characteristic of the three signals to the original signal. The selection of a clock signal that most closely approximates the original significantly reduces lock time when attempting to synchronize an internal clock with an external clock. Additionally, there is provided a method for comparing three clock signals with an original clock signal and selecting from the three clock signals one that is approximately in phase with the original clock signal.

Abstract: Provided is a method of image-guided navigation comprising determining a final navigated point in a three-dimensional reconstructed coordinate system based at least partially on two or more navigated points in a coordinate system associated with a two-dimensional array of image pixels and without specifying a coordinate of each of the two or more navigated points in a direction orthogonal to the two-dimensional array of image pixels, wherein each of the two or more navigated points is for a different position of a C-arm gantry. Also provided is an image-guided navigation system.

Abstract: A technique is presented for establishing a patient's BMD using a dual-energy X-ray imaging system. In the technique, the dual-energy X-ray imaging system utilizes a slit collimator to expose a series of portions of a region of interest within a patient with X-rays of two different energies. A flat-panel digital X-ray detector detects the X-rays passing through the patient's region of interest and produces data representative of the intensity of the X-rays reaching the detector. The image intensity data is corrected for scatter based on identifying the regions of the image intensity data that are produced from scatter only, and not primary X-rays. A first-order derivative of the image intensity data is used to identify these regions. A value for the intensity of the scatter at the boundary of the scatter-only region is established.

Abstract: A mobile dual-energy X-ray imaging system is presented. The mobile dual-energy X-ray imaging system is a digital X-ray system that is designed both to acquire original image data and to process the image data to produce an image for viewing. The system has an X-ray source and a portable flat-panel digital X-ray detector. The system is operable to produce a high energy image and low energy image, which may be decomposed to produce a soft tissue image and a bone image for further analysis of the desired anatomy. The system is disposed on a carrier to facilitate transport. The imaging system has an alignment system for facilitating alignment of the flat-panel digital detector with the X-ray source. The imaging system also comprises an anti-scatter grid and an anti-scatter grid registration system for removing artifacts of the anti-scatter grid from images.

Abstract: A wirelessly powered flexible tag configured to be in contact with a substrate is provided. The tag includes a coupling layer configured to couple the tag to the substrate. An electrical circuit disposed on the coupling layer and configured to interact wirelessly with an external stimulus. The tag further includes at least one electrode or at least one heating element in operative association with the electrical circuit, and configured to generate electrical energy or thermal energy, respectively. Upon wireless interaction with the external stimulus the tag is configured to induce an electrical response, a thermal response, or a combination of both in the substrate.

Abstract: A technique is provided for three-dimensional imaging in a non-calibrated geometry. In one embodiment, the technique includes acquiring a plurality of projection images through an imaging volume; estimating an imaging geometry using at least one of fiducial markers or anatomical features represented in the projection images; and reconstructing a configurable volumetric representation of some or all of the imaging volume using the estimated imaging geometry, wherein the act of reconstructing accounts for one or more geometry dependent factors. In addition, a system is provided which includes a computer configured to estimate an imaging geometry using at least one of fiducial markers or anatomical features represented in a plurality of projection images acquired through an imaging volume and to reconstruct a configurable volumetric representation of some or all of the imaging volume using the estimated imaging geometry, wherein the act of reconstructing accounts for one or more geometry dependent factors.

Abstract: A system for cooling a superconducting rotary machine includes a plurality of sealed siphon tubes disposed in balanced locations around a rotor adjacent to a superconducting coil. Each of the sealed siphon tubes includes a tubular body and a heat transfer medium disposed in the tubular body that undergoes a phase change during operation of the machine to extract heat from the superconducting coil. A siphon heat exchanger is thermally coupled to the siphon tubes for extracting heat from the siphon tubes during operation of the machine.

Abstract: Methods for fabricating a non-planar transistor. Fin field effect transistors (finFETs) are often built around a fin (e.g., a tall, thin semiconductive member). During manufacturing, a fin may encounter various mechanical stresses, e.g., inertial forces during movement of the substrate and fluid forces during cleaning steps. If the forces on the fin are too large, the fin may fracture and possibly render a transistor inoperative. Supporting one side of a fin before forming the second side of a fin creates stability in the fin structure, thereby counteracting many of the mechanical stresses incurred during manufacturing.

Abstract: An erosion-resistant insert is provided for a flow measurement device having a fluid displacement member. The insert includes a flange and a sleeve extending axially from the flange. The sleeve may be inserted into a recess machined into a fluid conduit of the fluid measurement device to protect the inner wall of the conduit. The insert maintains the inner diameter of the conduit and the beta ratio of the flow measurement device.

Abstract: An airway device is provided that may track the flow of respiratory gases through the device with sensing elements at a plurality of locations along the gas flow path of the device. Such a device may be useful for assessing a variety of clinical states, for adjusting patient ventilator settings, or for determining whether or not an airway device has been properly inserted into a patient airway.

Abstract: There is provided a system and/or method of monitoring media content. More specifically, in one embodiment, there is provided a method of monitoring operation of an electronic device having a plurality of signal inputs, the method comprising periodically collecting images from each of the plurality of signal inputs, storing the collected images for later evaluation if an image storage option is enabled, and sending the collected images for direct viewing if the image storage option is not enabled.

Abstract: In accordance with certain embodiments, a system includes a spray device having a liquid pathway leading to a liquid exit, an air pathway leading to an air exit directed toward a spray region downstream of the liquid exit, and an assembly disposed in the liquid pathway adjacent the liquid exit. The assembly includes a threadless pintle generally fit into a sleeve in a concentric manner without threads. The assembly also includes a generally annular passage between the threadless pintle and the sleeve and a passage coupled with the generally annular passage. The generally annular passage also has a cross-sectional area that alternatingly increases and decreases in a lengthwise direction along the liquid pathway.

Abstract: A system and method of controlling position of a pick-up head of an optical drive, including manipulating the position of the pick-up head as a primary variable in a cascade control scheme, and manipulating current flowing through the pick-up head as a secondary variable in the cascade control scheme.

Abstract: In certain embodiments, a PCA connector has a nylon body, wherein the nylon is durable, corrosion resistant, and exhibits excellent strength over a large range of temperature and moisture conditions. The nylon body may be described as a single structure with integral features, such as a bearing portion, a latch housing portion, a latch guide portion, and so forth. Thus, the number of parts is significantly reduced by the one-piece design of the body. In addition, the PCA connector may include a latching mechanism configured to secure the PCA connector to an aircraft. For example, the latching mechanism may include a pair of levers, which engage a pair of latches on opposite sides of the nylon body. In some embodiments, the levers may be rotated in opposite directions relative to one another to impart movement of the latches in the same direction, e.g., an axial direction. Also, some embodiments of the latching mechanism include a cam between the levers and the latches, respectively.

Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and heat exchangers are provided which include dissimilar tube spacing configurations. The heat exchangers include multiple sets of multichannel tubes in fluid communication with each other. One set of multichannel tubes contains a plurality of tubes spaced apart at one spacing while the another set of multichannel tubes contains a plurality of tubes spaced apart at a different spacing. The different spacing between the multichannel tubes allows each set of tubes to be configured to the properties of the refrigerant flowing within the tubes.

Abstract: Disclosed are methods of forming transistors. In one embodiment, the transistors are formed by forming a plurality of elliptical bases in a substrate and forming fins form the elliptical bases. The transistors are formed within the fin such that they may be used as access devices in a memory array.

Abstract: An aircraft electrical connector is provided with features to allow facile engagement with an aircraft and strong retention forces. The aircraft electrical system may include the aircraft electrical connector having a unique biasing mechanism and modular construction, wherein the biasing mechanism is configured to place differential forces onto mating electrical connectors from an aircraft. The biasing mechanism may be operatively coupled to a handle or trigger, which may be easily engageable by an operator. In one embodiment, an electrical connector may include a cam plate disposed between electrical connectors. The cam plate is configured to place differential forces on mating connectors inserted into the electrical connectors. In another embodiment, an electrical connector includes a moveable shaft that is disposed between electrical connectors.