Abstract: Electronic devices may include camera modules. A camera module may include an anamorphic lens and an image sensor having an array of asymmetrical image pixels. The array may be a square array arranged in pixel columns and pixel rows. The square image pixel array may include more pixel columns than pixel rows and may be located completely within the image circle of the anamorphic lens. The asymmetrical image pixels may each have a width that is smaller the height of that image pixel. The asymmetrical image pixels may be rectangular image pixels or diamond-shaped image pixels. The anamorphic lens may project a distorted image onto the array of asymmetrical image pixels. The width of each asymmetrical image pixel may be smaller than the height of that image pixel by an amount that corresponds to the distortion of the image by the anamorphic lens.

Abstract: A lead extension for an electrical stimulation system includes a lead-extension body, terminals, and a connector. The connector includes a contact housing and a gasket housing. Multiple connector contacts are disposed in the contact housing and are coupled to the terminals. A retention member is disposed along one end of the contact housing and is receivable by a retention socket defined in the gasket housing. A deformable gasket is disposed in the retention socket. A lumen extends through the connector and is suitable for receiving an electrical stimulation lead. The received lead is retained in the lumen by using the retention member to compress the gasket along a longitudinal length of the connector. The longitudinal compression of the gasket causes a corresponding radial expansion of the gasket, which retains the electrical stimulation lead within the lumen.

Abstract: A system and a method are disclosed for displaying content collected in a pen-based computing system. Content collected in the pen-based computing system includes stroke data collected by a smart pen as well as other contextual data collected by the pen-based computing system. The collected stroke data are grouped into snippets and used to create paper strips. Paper strips are arranged based on metadata associated with the collected content.

Abstract: A system and a method are disclosed for smart zooming content displayed in a pen-based computing system. Content is displayed in a paper strip interface including at least a first and a second paper strip. When the zoom level associated with the content of the first paper strip is changed, the content of the first paper strip is transformed accordingly. A determination is made if applying the same transformation to the content of the second paper strip will cause the content to exceed the boundaries of the second paper strip. If so, then a second transformation is determined and applied to the content of the second paper strip.

Abstract: A system and method are disclosed for interacting with digital workbooks. An identifier, identifying a physical workbook, is received. The physical workbook is associated with a digital book and can be displayed on a display screen of a computing system. Captured interactions between the smart pen and the writing surface of the workbook are received. One or more completed areas of the workbook are identified based on the one or more captured interactions. Based on the one or more completed areas of the workbook, a portion of the digital book is selected and displayed.

Abstract: Electronic devices may include camera modules. A camera module may include an array camera having an array of lenses and a corresponding array of image sensors. The array of image sensors may include a monochromatic image sensor such as a green image sensor and a polychromatic image sensor such as a red and blue image sensor. The red and blue image sensor may include a color filter array of red and blue color filter elements formed over an array of image pixels. The red and blue color filter elements in the polychromatic image sensor may be arranged in a checkerboard pattern, a zigzag pattern that extends vertically from the top of the pixel array to the bottom of the pixel array, or a diagonal strip pattern. The electronic device may include processing circuitry for combining monochromatic images from the monochromatic image sensor with polychromatic images from the polychromatic image sensor.

Abstract: A system and a method are disclosed for calibrating writing on a writing surface to a digital document. One or more calibration parameters associated with a writing surface and a digital document of a display device are determined. The calibration parameters indicate a spatial offset between a reference position on the writing surface and a reference position in the digital document. A gesture captured by a smart pen is received. The gesture includes a sequence of spatial positions representing movement of the smart pen with respect to the writing surface. The sequence of spatial positions is mapped to a sequence of spatial positions in the digital document based on the calibration parameters.

Abstract: A system and a method are disclosed for organizing content collected in a pen-based computing system. A plurality of groups of stroke data are obtained. Each group of stroke data is associated with a timestamp based on the timing of strokes made by the smart pen. The groups of stroke data are grouped into one or more snippets based on a temporal proximity of the timestamps and spatial proximity of the stroke data. A request to associate a snippet to a tag is received. An association between the snippet and the tag is stored responsive to the request.

Abstract: A central device concurrently receives handwriting gestures from a plurality of smart pen devices. Each set of handwriting gestures includes a sequence of spatial positions of the corresponding smart pen device with respect to a writing surface. Representations of the handwriting gestures are displayed on a display screen, and the representations show relative timing between the different sets of handwriting gestures. In one embodiment, a portion of the received handwriting gestures is outputted for display.

Abstract: A system and method establishes a connection between a smart pen and a computing device, and establishes a privilege level that regulates data requests for specific data from the smart pen. The smart pen determines whether a connection should be established between the smart pen and a computing device, based on device information received from the computing device. If a connection is established, a privilege level is established for an application executing on the computing device based on the device information, which determines whether a request from the application for specific data from the smart pen is allowed or denied.

Abstract: A lead assembly includes an electrical stimulation lead with a lead body having a distal portion, a proximal portion, a longitudinal length, and an outer surface. At least one electrode is disposed along the distal portion of the lead body. At least one terminal is disposed along the proximal portion of the lead body. At least one lead conductor electrically couples the at least one electrode to the at least one terminal. An anchoring arrangement is configured and arranged to reduce undesired movement of the lead relative to a patient when the lead is inserted into the patient. The anchoring arrangement includes at least one helical member attached to, and projecting outwardly from, the outer surface of the lead. The at least one helical member extends along at least 30% of the longitudinal length of the lead and makes at least one full coil around the lead.

Abstract: An electrical stimulation lead includes at least one lead body and at least one thin, elongate anchoring element. The lead body defines at least one anchoring lumen extending longitudinally along at least a portion of the lead body and at least one open slot in the lead body where each anchoring lumen is open at one of the at least one open slot. For each anchoring element, the first end of the anchoring element is disposed in one of the at least one anchoring lumen and the second end of the anchoring element is configured and arranged preferentially to extend out of the open slot associated with the anchoring lumen and away from the lead body in a deployed configuration unless the second end is constrained in a constrained configuration adjacent or within the lead body.

Abstract: An imaging system may include a camera module with an image sensor having an array of image sensor pixels and one or more lenses that focus light onto the array. The system may include processing circuitry configured to mitigate flare artifacts in image data captured using the array based on at least one image flare map. The image flare map may identify a portion of the captured image data on which to perform image flare mitigation operations. The processing circuitry may perform image flare mitigation operations such as pixel value desaturation on the identified portion of the captured image data without desaturating portions of the image data that do not include flare artifacts. The flare map may be generated using a calibration system that characterizes the location, intensity, and color of all possible image flare artifacts that may be generated by the imaging system during normal imaging operations.

Abstract: A stimulation lead includes an electrode carrier disposed along a distal portion of a lead body. The electrode carrier defines multiple segmented-electrode-receiving apertures extending between an outer surface and a central lumen. Each of the segmented-electrode-receiving apertures includes a ledge disposed around a perimeter of that segmented-electrode-receiving aperture and inset from the outer surface of the electrode carrier. The stimulation lead also includes multiple segmented electrodes, with each of the segmented electrode disposed in a different one of the segmented-electrode-receiving apertures with an outer stimulation surface exposed through the segmented-electrode-receiving aperture and an inner surface abutting the ledge disposed around the perimeter of that segmented-electrode-receiving aperture. Conductive wires extend along the lead body and couple the segmented electrodes to terminals.

Abstract: An image sensor may include an array of photodiodes and readout circuitry. A group of adjacent photodiodes in the array may be covered with a first color filter element that transmits a first color light and an additional group of adjacent photodiodes may be covered with a second color filter element that transmits a second color light. The group of photodiodes may share a floating diffusion node. The array may be operable in a low resolution mode in which the readout circuitry reads out image signals corresponding to a sum of charges generated by the group of photodiodes and in a high resolution mode in which the readout circuitry reads out image signals corresponding to charges generated by each of the photodiodes from the shared floating diffusion node. The photodiodes in the group may capture charge using different integration times for generating high-dynamic-range images.

Abstract: A system and method receives a plurality of data streams from a smart pen device and a computing device, and indexes the data streams to a synchronized time index. A processor receives a first data stream representing gesture data captured by a smart pen device, and a second data stream representing a sequence of states associated with applications executing on a computing device, such that each state identifies content displayed by a computing device while the gesture data is captured. For example, a state could be a particular page of a digital document displayed by the computing device. After receiving the first and second data streams, the processor indexes the data streams to a synchronized time index, and stores the indexed data streams in a memory.

Abstract: A lead extension for an electrical stimulation system includes a lead-extension body, terminals, and a connector. The connector includes a contact housing and a gasket housing. Multiple connector contacts are disposed in the contact housing and are coupled to the terminals. A retention member is disposed along one end of the contact housing and is receivable by a retention socket defined in the gasket housing. A deformable gasket is disposed in the retention socket. A lumen extends through the connector and is suitable for receiving an electrical stimulation lead. The received lead is retained in the lumen by using the retention member to compress the gasket along a longitudinal length of the connector. The longitudinal compression of the gasket causes a corresponding radial expansion of the gasket, which retains the electrical stimulation lead within the lumen.

Abstract: An insertion tool for a paddle lead includes an insertion tool body having a receiving end portion; a stylet channel extending along the insertion tool body; a stylet disposed in the stylet channel; and an actuator assembly disposed along the handling end portion of the insertion tool body and coupled to the stylet. The actuator assembly controls transitioning of the stylet between a first position and a second position. In some instances, the stylet can be a wire stylet that is inserted into a lumen in the paddle body of the paddle lead. In some instances, the stylet of the insertion tool pushes lead bodies of the paddle lead out of the insertion tool to release the paddle lead. In some instances, the insertion tool includes a paddle envelope to hold the paddle lead.

Abstract: An imaging system may include a camera module with an image sensor having an array of image sensor pixels and one or more lenses that focus light onto the array. The system may include processing circuitry configured to mitigate flare artifacts in image data captured using the array based on at least one image flare map. The image flare map may identify a portion of the captured image data on which to perform image flare mitigation operations. The processing circuitry may perform image flare mitigation operations such as pixel value desaturation on the identified portion of the captured image data without desaturating portions of the image data that do not include flare artifacts. The flare map may be generated using a calibration system that characterizes the location, intensity, and color of all possible image flare artifacts that may be generated by the imaging system during normal imaging operations.

Abstract: A system and a method are disclosed for smart zooming content displayed in a pen-based computing system. Content is displayed in a paper strip interface including at least a first and a second paper strip. When the zoom level associated with the content of the first paper strip is changed, the content of the first paper strip is transformed accordingly. A determination is made if applying the same transformation to the content of the second paper strip will cause the content to exceed the boundaries of the second paper strip. If so, then a second transformation is determined and applied to the content of the second paper strip.