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.

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: 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 (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: 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: 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 pressure support device (50) such as, such a CPAP machine (50), is provided, which includes a housing (51), and a controller (64) enclosed by the housing (51). The controller (64) operates the CPAP machine (50) independently or in combination with an accessory (70) such as, for example and without limitation, a humidifier (70). A user interface (66) is operably (74) coupled to the controller (64) and includes a primary display (72), a secondary display (74) and a single control (76). The single control (76) is operable in a first mode of operation to adjust operating parameters of the CPAP machine (50), and in a second mode of operation to adjust operating parameters of the humidifier (70). The secondary display (74) preferably comprises a dead front (74), which is operational (e.g., without limitation, visible) only in the second mode of operation. A method of operating a pressure support device (50) is also disclosed.

Abstract: An electro-mechanical transistor includes a source electrode and a drain electrode spaced apart from each other. A source pillar is between the substrate and the source electrode. A drain pillar is between the substrate and the drain electrode. A moveable channel is spaced apart from the source electrode and the drain electrode. A gate nano-pillar is between the moveable channel and the substrate. A first dielectric layer is between the moveable channel and the gate nano-pillar. A second dielectric layer is between the source pillar and the source electrode. A third dielectric layer is between the drain pillar and the drain electrode.

Abstract: An electromechanical transistor includes a source electrode and a drain electrode spaced apart from each other. A source pillar is between the substrate and the source electrode. A drain pillar is between the substrate and the drain electrode. A moveable channel is spaced apart from the source electrode and the drain electrode. A gate nano-pillar is between the moveable channel and the substrate. A first dielectric layer is between the moveable channel and the gate nano-pillar. A second dielectric layer is between the source pillar and the source electrode. A third dielectric layer is between the drain pillar and the drain electrode.

Abstract: A patterned response system and method provide for automatically, e.g., programmatically, generating learning items that are useable in conjunction with an assessment. In one embodiment, the learning items may be generated as an aggregation of patterns corresponding to a targeted skill and related skills. The relatedness of skills may, for example, be determined according to a precursor/postcursor based learning relationship that may be represented by a learning map.