Abstract: A signal communication system is provided that may include signaling lamp assembly, a receiver device, and a communication device. The signaling lamp assembly may include a lamp generating light indicative of a status of a wayside device The lamp may generate the light responsive to receiving an activation signal. The receiver may receive timing signals from one or more remote signal sources and output a time indication based on the timing signals that are received. The receiver may output the time indication responsive to the lamp receiving the activation signal. The communication device may send a status signal responsive to the lamp receiving the activation signal, the status signal indicating the status of the wayside device and the time indication.

Abstract: A mandrel assembly may be used with a rotary power tool to provide a reliable and stable connection between the rotary tool and a tool accessory. The mandrel assembly provides a quick-connect/quick-release connection between the tool output shaft and the accessory via a clamping action. In particular, the mandrel assembly is movable between a first configuration in which the accessory may clamped tween a clamping element formed on one end of the mandrel and a collar which surrounds the mandrel and a second configuration in which the accessory may be loaded onto or detached from the mandrel assembly. Movement from the first configuration to the second configuration, and from the second configuration to the first configuration each include axial motion in combination with a rotation of the mandrel in the same direction relative to the collar.

Abstract: Methods, systems and devices for determining contrast sensitivity function in a subject without requiring perceptual report by the subject.

Abstract: The invention generally relates to methods of treating a central nervous system related disorder in a human subject, the method comprising providing a pharmaceutical composition to a human subject having a central nervous system disorder, wherein the pharmaceutical composition is an oral formulation that comprises a compound of Formula (I): at a dose between 5 mg and 90 mg.

Abstract: A tablet computing system may include a housing member defining a first portion of a back exterior surface of the tablet computer, at least a portion of a side exterior surface of the tablet computer, a raised rim extending from the back exterior surface and at least partially defining a sensor assembly hole extending through the housing member, and a support ledge positioned in the sensor assembly hole. The tablet computing system may also include a frame member positioned at least partially in the sensor assembly hole and coupled to the support ledge, a camera bracket coupled to the frame member, a first camera module coupled to the camera bracket, aa second camera module coupled to the camera bracket, the camera bracket fixing the relative positions of the first camera module and the second camera module, and a cover member positioned in the sensor assembly hole and attached to the frame member.

Abstract: Methods, systems and devices for determining contrast sensitivity function in a subject without requiring perceptual report by the subject.

Abstract: A tablet computing system may include a housing member defining a first portion of a back exterior surface of the tablet computer, at least a portion of a side exterior surface of the tablet computer, a raised rim extending from the back exterior surface and at least partially defining a sensor assembly hole extending through the housing member, and a support ledge positioned in the sensor assembly hole. The tablet computing system may also include a frame member positioned at least partially in the sensor assembly hole and coupled to the support ledge, a camera bracket coupled to the frame member, a first camera module coupled to the camera bracket, aa second camera module coupled to the camera bracket, the camera bracket fixing the relative positions of the first camera module and the second camera module, and a cover member positioned in the sensor assembly hole and attached to the frame member.

Abstract: The present system can measure eye gaze position and detect, in near real-time, smooth eye movements that are driven by a moving stimulus. Smooth movements that match the velocity of a moving stimulus provide evidence that the subject can see the moving stimulus. The present system can give real-time feedback to the user, for example in the form of music, contingent on the ability of the user to perform smooth velocity-matched eye movements. The present system can measure visual impairment and train visual ability both for rehabilitation and development purposes.

Abstract: A tablet computing system may include a housing member defining a first portion of a back exterior surface of the tablet computer, at least a portion of a side exterior surface of the tablet computer, a raised rim extending from the back exterior surface and at least partially defining a sensor assembly hole extending through the housing member, and a support ledge positioned in the sensor assembly hole. The tablet computing system may also include a frame member positioned at least partially in the sensor assembly hole and coupled to the support ledge, a camera bracket coupled to the frame member, a first camera module coupled to the camera bracket, aa second camera module coupled to the camera bracket, the camera bracket fixing the relative positions of the first camera module and the second camera module, and a cover member positioned in the sensor assembly hole and attached to the frame member.

Abstract: Contrast sensitivity is an informative measure of visual function, but current tools for assessing it are limited by the attentional, motor, and communicative abilities of the participant. These participants are often less able to engage with psychophysical tasks or follow an experiment's instructions, and alternative approaches have disadvantages that limit their usefulness in clinical settings. Here, we describe an efficient new measure of contrast sensitivity—‘Curveball’—that continuously infers stimulus visibility through smooth eye tracking instead of perceptual report. The procedure rapidly lowers stimulus contrast in real time until the threshold is found. The task is repeatable, well-correlated with results from conventional psychophysical methods, and sensitive to improvements in visual acuity from refractive correction.

Abstract: The present system can measure eye gaze position and detect, in near real-time, smooth eye movements that are driven by a moving stimulus. Smooth movements that match the velocity of a moving stimulus provide evidence that the subject can see the moving stimulus. The present system can give real-time feedback to the user, for example in the form of music, contingent on the ability of the user to perform smooth velocity-matched eye movements. The present system can measure visual impairment and train visual ability both for rehabilitation and development purposes.

Abstract: We describe a method of reducing artefacts in an image displayed by an active matrix electro-optic display and display driver, the electro-optic display driver comprising a plurality of active matrix pixel drivers each driving a respective pixel of the electro-optic display, each active matrix pixel driver having an associated storage capacitor coupled to a common backplane connection of the display driver, pixels of the electro-optic display having a common pixel electrode, the method comprising: driving the electro-optic display with a null frame during a power-down procedure of the display.

Abstract: A pixel driver circuit having only three conductive layers is described. The pixel driver circuit comprises a vertical driver transistor (26) spanning said three conductive layers, wherein a first of said conductive layers (22) on a first side of a middle conductive layer (32) provides a first source-drain connection (52) of said driver transistor, wherein a third of said conductive layers (34) on the opposite side of said middle conductive layer to said first conductive layer provides a gate connection (54) for said vertical driver transistor, and wherein said middle conductive layer provides a second source-drain connection (50) for said vertical driver transistor. The circuit also comprises a lateral switching transistor (30) with source-drain connections (44,46) in one of said three conductive layers.

Abstract: An orifice introducer device for introducing, for example a surgical device, into, for example an orifice of a body, includes a tubular member having a distal end and a proximal end. The distal end is adjustable between a first position for insertion into an orifice and a second position once inserted into the orifice. Alternatively, the orifice introducer device includes a distal portion having a proximal end configured to be detachably secured to the distal end of the tubular member. The distal portion is selectively detachable when the orifice introducer device is positioned in the orifice.

Abstract: A pixel driver circuit having only three conductive layers is described. The pixel driver circuit comprises a vertical driver transistor (26) spanning said three conductive layers, wherein a first of said conductive layers (22) on a first side of a middle conductive layer (32) provides a first source-drain connection (52) of said driver transistor, wherein a third of said conductive layers (34) on the opposite side of said middle conductive layer to said first conductive layer provides a gate connection (54) for said vertical driver transistor, and wherein said middle conductive layer provides a second source-drain connection (50) for said vertical driver transistor. The circuit also comprises a lateral switching transistor (30) with source-drain connections (44,46) in one of said three conductive layers.

Abstract: A device comprising an array of transistors; wherein the device comprises an array of first conductors providing either the gate electrodes or the source electrodes for the transistors, and an array of second conductors providing the other of the gate electrodes and the source electrodes for the transistors; wherein the first conductors include conductors that are each associated with a respective group of N rows of the array of transistors; and wherein the columns of transistors include columns of transistors that are associated with a respective set of N second conductors of the array of second conductors, and each second conductor in each set of N second conductors is associated with a respective set of 1/N transistors in the respective column of transistors; wherein N is greater than 1.

Abstract: A surgical device is described. The surgical device may comprise a rotatable cutter configured to cut tissue for insertion of a cannula, and a first driver configured to be driven by a motor arrangement and to rotate the cutter. The surgical device may further include, for example, the cannula, at least one of the rotatable cutter and the first driver being disposed in a bore of the cannula. In one embodiment, the rotatable cutter may include an auger having a cutting thread. In another embodiment, the rotatable cutter may include a disk-shaped blade.

Abstract: A surgical device is described. The surgical device may comprise a rotatable cutter configured to cut tissue for insertion of a cannula, and a first driver configured to be driven by a motor arrangement and to rotate the cutter. The surgical device may further include, for example, the cannula, at least one of the rotatable cutter and the first driver being disposed in a bore of the cannula. In one embodiment, the rotatable cutter may include an auger having a cutting thread. In another embodiment, the rotatable cutter may include a disk-shaped blade.

Abstract: A surgical device is described. The surgical device may comprise a rotatable cutter configured to cut tissue for insertion of a cannula, and a first driver configured to be driven by a motor arrangement and to rotate the cutter. The surgical device may further include, for example, the cannula, at least one of the rotatable cutter and the first driver being disposed in a bore of the cannula. In one embodiment, the rotatable cutter may include an auger having a cutting thread. In another embodiment, the rotatable cutter may include a disk-shaped blade.

Abstract: We describe a method of reducing artefacts in an image displayed by an active matrix electro-optic display and display driver, the electro-optic display driver comprising a plurality of active matrix pixel drivers each driving a respective pixel of the electro-optic display, each active matrix pixel driver having an associated storage capacitor coupled to a common backplane connection of the display driver, pixels of the electro-optic display having a common pixel electrode, the method comprising: driving the electro-optic display with a null frame during a power-down procedure of the display.