Abstract: A wearable apparatus for sensing movement of a wearer's body is disclosed. The wearable apparatus comprises a flexible substrate for conforming about the wearer's body, and a capacitive sensor attached to the flexible substrate, the capacitive sensor comprising a transmitter electrode and a receiver electrode arranged in opposition on opposite sides of the flexible substrate, the transmitter electrode being arranged to capacitively couple to the receiver electrode.

Abstract: A method to determine a position of an inkable substrate located on a drawing area of an input device is disclosed. The method comprises detecting one or more physical features of the inkable substrate using a sensor that is positionally fixed relative to the drawing area of the input device, and determining, based on the detected physical features of the inkable substrate, a position of the inkable substrate with respect to the drawing area of the input device.

Abstract: An example electronic device includes an active digital pen sensor surface to generate analog position information, wherein the active digital pen sensor surface includes a projective capacitive sensor layer with a variance of sheet resistance of less than plus or minus 20 percent. The electronic device also includes a controller, including a sigma-delta analog-to-digital (A-to-D) converter, to generate digital pen position information based on the analog position information, and perform a triangulation based on the digital pen position information to determine a pen position.

Abstract: Translating a hand gesture to an action, consistent with the present disclosure, may be performed in a number of ways. In a particular example, a computer-readable medium may store instructions that when executed cause a processor to receive from a sensor of an input device, a drive signal indicative of a hand gesture, where the drive signal is a sigma-delta A-to-D enabled drive signal. The computer-readable medium may also store instructions that when executed, cause the processor to instruct the input device to enter a hover mode of operation, in response to a determination that the hand gesture includes a first hand gesture, and translate a second hand gesture detected by the sensor to an action by determining a three-dimensional space position and a motion vector of the second hand gesture. The computer-readable medium may store instructions, provide instructions to an operating system to perform the action.

Abstract: An example touch/pen (T/P) sensor device includes a T/P sensor to generate position information based on user interaction with a sensor surface of the T/P sensor, and a color sensor to sense a color hue of a writing tip of a pencil to be used to interact with the sensor surface of the T/P sensor to generate a digital image. The T/P sensor device also includes a processor to record metadata with the digital image to indicate the sensed color hue.

Abstract: An example electronic device includes an active digital pen sensor surface to generate analog position information, wherein the active digital pen sensor surface includes a projective capacitive sensor layer with a variance of sheet resistance of less than plus or minus 20 percent. The electronic device also includes a controller, including a sigma-delta analog-to-digital (A-to-D) converter, to generate digital pen position information based on the analog position information, and perform a triangulation based on the digital pen position information to determine a pen position.

Abstract: An example of a flexible sensor stack includes a flexible film comprising a conformal polymer film or a flexible glass film. The flexible sensor stack includes first and second conformal poly(3,4-ethylenedioxythiophene) (PEDOT) films formed over the flexible film and including sensor traces to provide a flexible touch/pen (T/P) sensor surface, wherein the flexible sensor stack is bendable to conform to a non-flat attachment surface.

Abstract: A surface including: a plurality of visually detectable marks, wherein the visually detectable marks include: a first group of grid marks forming a grid and a second group of information marks encoding information based on positions of information marks of the second group of marks relative to the data page, wherein grid marks are less than 45% of the visually detectable marks on the surface.

Abstract: A surface including: multiple data pages, wherein each data page includes: multiple optically detectable marks indicating boundaries of the data page; and an array of data cells, wherein a location of an optically detectable mark in a data cell of the array of data cells encodes information and adjacent data pages use different encoding patterns such that an encoded value would be represented by a first pattern of marks on a first data page and the same encoded value would be represented by a second, different pattern of marks on a second data page.

Abstract: Determining locations of electro-optical pens. An example apparatus includes a distance determiner to determine a distance of a pen to a scribing surface based on a first image output by a first imager of the pen and a second image output by a second imager of the pen, the first image associated with a first plane of view and the second image associated with a second plane of view; a tilt orientation determiner to determine a tilt orientation of the scribing surface relative to the pen; a corrector to adjust at least one of the first plane of view or the second plane of view based on the tilt orientation of the scribing surface; and a location determiner to determine a location of the pen relative to the scribing surface based on the at least one of the adjusted first plane of view or the adjusted second plane of view.

Abstract: In one example in accordance with the present disclosure, an electronic input device is described. The electronic input device includes a scribing shaft disposed within a housing, the scribing shaft to translate along a longitudinal axis as a result of contact with a substrate. The electronic input device also includes an input sensor. The input sensor includes a plate secured within the housing. The plate elastically deforms responsive to the translation of the scribing shaft. A full-bridge strain gauge of the input sensor is disposed on a surface of the plate. The full-bridge strain gauge detects a deformation of the plate and outputs a corresponding signal, which corresponding signal varies dependent upon the amount of deformation of the plate. The input sensor also includes a failure protection device to limit the deformation of the plate to within a predetermined amount.

Abstract: Methods, systems, apparatus, and computer-readable media (transitory or non-transitory) are described herein for scaling and rendering a virtual hand. According to an example, vision data may be received from a three-dimensional (“3D”) vision sensor. The vision data may capture at least a portion of a user in an environment, and may include data representing the user's hand relative to a touch interaction surface. The vision data may be processed to generate a 3D representation of the user's hand. A scaling center may be identified on the touch interaction surface to scale the 3D representation of the user's hand. The 3D representation of the user's hand may be scaled with respect to the identified scaling center using a scaling factor. The scaling factor may be based on a rendering constraint. A virtual hand may be rendered, e.g., on a display, based on the scaled 3D representation of the user's hand.

Abstract: A first alternating current (AC) power may be changed into a direct current (DC) power and stored in an energy storage as stored power. The stored power may be converted into a second AC power and combined with the first AC power.

Abstract: In one example, an electronic input device is described. The electronic input device includes a cylindrical shaft including a tip. A sensor housing of the electronic input device is disposed within an external housing. The sensor housing is parallel with, and surrounds, the cylindrical shaft. The electronic input device also includes a radial sensor(s) disposed on an inside diameter of the sensor housing. The sensor(s) are to sense, directly from the tip, radial force inputs against the tip.

Abstract: In one example, an electronic input device is described. The electronic input device includes a cylindrical shaft including a tip. A sensor housing of the electronic input device is disposed within an external housing. The sensor housing is parallel with, and surrounds, the cylindrical shaft. The electronic input device also includes a radial sensor(s) disposed on an inside diameter of the sensor housing. The sensor(s) are to sense, directly from the tip, radial force inputs against the tip.

Abstract: A surface including: a plurality of visually detectable marks, wherein the visually detectable marks include: a first group of grid marks forming a grid and a second group of information marks encoding information based on positions of information marks of the second group of marks relative to the data page, wherein grid marks are less than 45% of the visually detectable marks on the surface.

Abstract: Determining locations of electro-optical pens. An example apparatus includes a distance determiner to determine a distance of a pen to a scribing surface based on a first image output by a first imager of the pen and a second image output by a second imager of the pen, the first image associated with a first plane of view and the second image associated with a second plane of view; a tilt orientation determiner to determine a tilt orientation of the scribing surface relative to the pen; a corrector to adjust at least one of the first plane of view or the second plane of view based on the tilt orientation of the scribing surface; and a location determiner to determine a location of the pen relative to the scribing surface based on the at least one of the adjusted first plane of view or the adjusted second plane of view.

Abstract: A surface including: multiple data pages, wherein each data page includes: multiple optically detectable marks indicating boundaries of the data page; and an array of data cells, wherein a location of an optically detectable mark in a data cell of the array of data cells encodes information and adjacent data pages use different encoding patterns such that an encoded value would be represented by a first pattern of marks on a first data page and the same encoded value would be represented by a second, different pattern of marks on a second data page.

Abstract: Determining locations of electro-optical pens. A disclosed example includes, a distance determiner to determine a distance from a pen to a scribing plane at a plurality of points to produce a plurality of distance measurements, a tilt orientation determiner to determine a tilt orientation of the scribing plane relative to the pen based on the plurality of distance measurements, a plane of view corrector to, based on the tilt orientation of the scribing plane, correct a plane of view associated with at least one of the first perspective and the second perspective, and a coordinate determiner to determine coordinates of the pen based on the corrected plane of view. A location determiner determines the location of the pen on a display based on the coordinates.

Abstract: In one example in accordance with the present disclosure, an electronic input device is described. The electronic input device includes a scribing shaft disposed within a housing, the scribing shaft to translate along a longitudinal axis as a result of contact with a substrate. The electronic input device also includes an input sensor. The input sensor includes a plate secured within the housing. The plate elastically deforms responsive to the translation of the scribing shaft. A full-bridge strain gauge of the input sensor is disposed on a surface of the plate. The full-bridge strain gauge detects a deformation of the plate and outputs a corresponding signal, which corresponding signal varies dependent upon the amount of deformation of the plate. The input sensor also includes a failure protection device to limit the deformation of the plate to within a predetermined amount.