Abstract: A pressure support device such as a CPAP machine, is provided, which includes a housing, and a controller enclosed by the housing. The controller operates the CPAP machine independently or in combination with an accessory such as, for example and without limitation, a humidifier. A user interface is operably coupled to the controller and includes a primary display, a secondary display and a single control. The single control is operable in a first mode of operation to adjust operating parameters of the CPAP machine, and in a second mode of operation to adjust operating parameters of the humidifier. The secondary display preferably comprises a dead front, which is operational (e.g., without limitation, visible) only in the second mode of operation. A method of operating a pressure support device is also disclosed.

Abstract: A water leak detection and prevention system employs water flow, moisture and temperature sensors within a monitored residential, commercial or industrial building. A motor-actuated valve has been installed that controls water flow through the main water pipe or branch pipe. A flow sensor is used to detect water flow through a building's main or branch water pipe. Moisture sensors and temperature sensors are placed at strategic locations throughout the monitored building. All sensors communicate wirelessly with a gateway. A signal is sent to the gateway whenever a sensor detects a dangerous condition. Signals are relayed from the gateway to a server that manages the system. Alerts are sent to building personnel via push notification and phone calls. Any of such personnel can transmit a command to the server, which is relayed to the affected gateway, which sends a wireless signal to shut off the motor-actuated valve.

Abstract: A machine-vision system includes a modulated light source, an imaging pixel array, and a lens system. The modulated light source is configured to project light onto a subject. The imaging pixel array is configured to receive the light reflected from a locus of the subject and indicate distance to the locus. The lens system is configured to receive the light reflected from the subject and refract such light onto the imaging pixel array. The focal length of the lens system decreases with increasing angle of observation relative to a shared optical axis of the lens system and the imaging pixel array.

Abstract: The present invention relates to the generation of anterior definitive endoderm (ADE) cells from embryonic stem cells and the differentiation of such cells to, for example, pancreatic or liver cells. The invention also relates to cell lines, cell culture methods, cell markers and the like and their potential uses in a variety of applications.

Abstract: A patient interface device (8) is includes a support frame (14) structured to be fluidly coupled to a pressure generating device, a cushion (12) structured to engage a portion of the face of a patient, and a headgear component (16) structured to secure the patient interface device to the head of the patient. The headgear component has a central interface portion (22), at least one strap member (24A, 24B) extending from the central interface portion, and a frame member (32) provided within central interface portion. The frame member is removeably secured in between the cushion and the support frame and is structured to provide an airtight seal between the cushion and the support frame.

Abstract: Examples are disclosed herein that are related to depth imaging of a 360-degree field of view. One example provides a depth imaging system comprising an image sensor, a reflector subsystem comprising one or more reflectors arranged to reflect a radial field of view of a surrounding environment toward the image sensor, a projector configured to project light onto the reflector subsystem for reflection into the surrounding environment, and a computing device comprising a logic subsystem and a storage subsystem comprising instructions executable by the logic subsystem to receive image data from the image sensor, and output a depth image based upon the image data.

Abstract: A patient interface device includes a fluid coupling member structured to be coupled to a source of breathing gas, and a patient sealing assembly structured to be coupled to the fluid coupling member. The patient sealing assembly includes a central cushion portion, a first side portion and a second side portion, wherein the central cushion portion is structured to enable a size of the central cushion portion to be adjusted in a direction that is generally perpendicular to a longitudinal axis of the patient sealing assembly from a first size configured to provide a nasal/oral mask configured to cover a nose and mouth of a patient to a second size configured to provide a nasal mask configured to cover only the nose of the patient.

Abstract: Various embodiments of TOF depth cameras and methods for illuminating image environments with illumination light are provided herein. In one example, a TOF depth camera configured to collect image data from an image environment illuminated by illumination light includes a light source including a plurality of surface-emitting lasers configured to generate coherent light. The example TOF camera also includes an optical assembly configured to transmit light from the plurality of surface-emitting lasers to the image environment and an image sensor configured to detect at least a portion of return light reflected from the image environment.

Abstract: A patient interface device includes a headgear component having a first end, a second end, and a sealing interface region located between the first end and the second end, wherein the sealing interface region has a hole extending through the elongated fabric body member. The patient interface device also includes a mask component having a cushion and a fluid coupling conduit fluidly coupled to the cushion, wherein at least a portion of the fluid coupling conduit extends through the hole and the sealing interface region covers at least a portion of the cushion. The cushion will be held and supported by the elongated fabric body member in engagement with a portion of the patient's face responsive to the patient interface device being donned by the patient by wrapping the elongated fabric body member around the head of the patient.

Abstract: Various embodiments of TOF depth cameras and methods for illuminating image environments with illumination light are provided herein. In one example, a TOF depth camera configured to collect image data from an image environment illuminated by illumination light includes a light source including a plurality of surface-emitting lasers configured to generate coherent light. The example TOF camera also includes an optical assembly configured to transmit light from the plurality of surface-emitting lasers to the image environment and an image sensor configured to detect at least a portion of return light reflected from the image environment.

Abstract: A machine-vision system includes a modulated light source, an imaging pixel array, and a lens system. The modulated light source is configured to project light onto a subject. The imaging pixel array is configured to receive the light reflected from a locus of the subject and indicate distance to the locus. The lens system is configured to receive the light reflected from the subject and refract such light onto the imaging pixel array. The focal length of the lens system decreases with increasing angle of observation relative to a shared optical axis of the lens system and the imaging pixel array.

Abstract: An optical pulse-rate sensor includes a fixture, a light emitter, a light sensor, and a light stop. The fixture has a rim configured to contact a skin surface and enclose an area of the surface. The light emitter and light sensor are each coupled to the fixture and positioned opposite the area. The light stop is coupled to the fixture and positioned between the light emitter and the light sensor to shield the light sensor from direct illumination by the light source.

Abstract: Various embodiments of a time-of-flight (TOF) depth camera and methods for projecting illumination light into an image environment are disclosed. One example embodiment of a TOF depth camera includes a light source configured to generate coherent light; a first optical stage including an array of periodically-arranged lens elements positioned to receive at least a portion of the coherent light and to form divergent light; a second optical stage positioned to receive at least a portion of the divergent light and to reduce an intensity of one or more diffraction artifacts in the divergent light to form illumination light for projection into an illumination environment; and an image sensor configured to detect at least a portion of return illumination light reflected from the illumination environment.

Abstract: A computer implemented method for clustering documents that includes receiving at least a first first-level cluster of documents and a second first-level cluster of documents, wherein the first first-level cluster includes one or more first documents associated with a first domain, the first documents satisfying a first first-level classification criterion, and the second first-level cluster including one or more second documents associated with a second domain, the second documents satisfying a second first-level classification criterion. The method also includes creating, by a processor of the computer system, a second-level cluster by combining the first first-level cluster with the second first-level cluster when a) the first first-level cluster and second first-level cluster satisfy a second-level classification criterion; and b) the first domain does not match the second domain.

Abstract: The present invention relates to the generation of anterior definitive endoderm (ADE) cells from embryonic stem cells and the differentiation of such cells to, for example, pancreatic or liver cells. The invention also relates to cell lines, cell culture methods, cells markers and the like and their potential uses in a variety of applications.

Abstract: A system and method is disclosed for detecting invalid webpages by analyzing server redirects. A storage comprising a set of previously stored target addresses is queried to determine whether one or more of the set of previously stored target addresses result from a redirect initiated from more than a predetermined number of originating addresses. On determining that a target address resulted from a redirect initiated from more than the predetermined number of originating addresses, the originating addresses are analyzed to determine, for each address, a difference between information previously stored for the originating address and information associated with the respective target address. If the difference satisfies a predetermined threshold, the originating address is marked as not valid or is removed.