A touch sensing system is configured to determine a state of a paper material indicative of a touch input on the paper material. The actions include receiving one or more values of features representing physical properties of a paper material. The system generates, by a pair of electrodes in a conductive material that is electrically connected with the paper material, an electric field in the conductive material. The paper material is configured to shunt current from the conductive material when the paper material is touched. The system measures the electric field in the conductive material in the conductive material. The system generates an approximation of the electric field in the conductive material. The system determines with a classifier a state of the paper material indicative of a touch input on the paper material.

A flexure guidance system may be provided for controlling movement of an optical subassembly and/or a connected combiner lens. For instance, the flexure guidance system may include a distal end piece, a proximal end piece, and multiple wire flexures that link the distal end piece to the proximal end piece. The linking wire flexures may be spaced to form an interior cavity between the distal end piece and the proximal end piece. This interior cavity may house various electronic components. One or more actuators in the system may move the electronic components according to input signals along different axes of movement provided by the wire flexures. Various other methods, systems, and computer-readable media are also disclosed.

Systems and methods for through-display imaging. An optical imaging sensor is positioned at least partially behind a display and is configured to emit shortwave infrared light at least partially through the display to illuminate an object, such as a fingerprint, in contact with an outer surface of the display. Surface reflections from the object are received and an image of the object can be assembled.

A computer readable recording medium comprising at least one program stored therein. An image quality improving method is performed when the program is executed. The image quality improving method comprises: (a) computing brightness contrast information of an original image captured by an image sensor of an optical navigation device; (b) computing a brightness variation level of the original image; and (c) improving an image quality of the original image based on the brightness contrast information and the brightness variation level.

A computer readable recording medium storing at least one program, wherein an image quality improvement method is performed when the program is executed. The image quality improvement method comprising: (a) classifying data units of a target image to normal data units and abnormal data units based on relations between brightness values of the data units and a classification parameter, wherein the classification parameter is related with an image quality of the target image or the brightness values of the data units; and (b) adjusting the brightness values of the abnormal data units based on an adjusting parameter to generate adjusted brightness values, such that differences between the adjusted brightness values and the brightness values of the normal data units are reduced. An optical navigation method using the image quality improvement method is also disclosed.

A display device includes a display unit including a plurality of emission areas, a plurality of touch electrodes that sense a touch, a plurality of code patterns formed in a preset code shape on partial areas of front surfaces of the plurality of touch electrodes, a plurality of tilt sensing patterns including a light absorbent disposed in an inner area or a peripheral area of each of the plurality of code patterns, and a main processor. The main processor receives detected image data corresponding to the plurality of tilt sensing patterns from a position input device, and determines arrangement direction information and tilt information of the position input device by comparing the detected image data with each other.

The present invention provides a dot film, a multi-layers optic sheet comprising the dot film, and a smart electric board having the multi-layers optic sheet attached thereto, the dot film comprising: a base layer made of a synthetic resin; a resin layer coated with a resin mixture on the rear surface of the base layer; and a dot layer on which fine dots are formed by printing such that a printing material permeates the resin layer, wherein the dot layer has a plurality of dots formed therewith which are spaced apart from each other at crossing points of virtual grid lines, and has location information encrypted therein so as to determine location information of an electronic pen when writing with the electronic pen. According to the present invention, the optic sheet has a thinned thickness, a minimized possibility of an inflow of particles between layers in the production process, and a low reflectance and scattering rate, and thus has an excellent reactivity and recognition rate for the electronic pen, and UV printing is possible as well as the printing of inkjet and laser printers etc., the production cost thereof is low, and there is an effect of easily permeating and printing printed material.

A display sheet 10 according to the present invention is to be used while being placed on a display 11, and includes: infrared-light emitting elements 15 that emit infrared light from on the display 11 to a space; infrared-light receiving elements 16 that receive infrared light proceeding to the display 11 from the space; and transmitting portions 17 that passes light emitted from the display 11 to the space. The infrared-light emitting elements 15, the infrared-light receiving elements 16, and the transmitting portions 17 are formed into a sheet in a state of being arranged side by side or arranged to be scattered. Merely by placing the display sheet 10 on the display 11 and teaming them with an optical image-forming means, an aerial-image-forming type input device can be obtained with no need of separately preparing a dedicated display or infrared-light emitter. Thus, it is excellent in versatility.

Methods, apparatus, and computer program products that can display applications on a mobile computing device based on different relative positions are disclosed herein. One method includes determining, by a processor, different relative positions of a mobile computing device user while a user is performing an activity. In some embodiments, the method further includes toggling display of a plurality of applications on the mobile computing device based on the different relative positions of the mobile computing device while the user is performing the activity. Apparatus and computer program products that include hardware and/or software that can perform the methods for display applications on a mobile computing device based on position are also disclosed herein.

A hosing (11) has a shape capable of being held by a user. A reading device (12) is installed in the housing (11) and configured to read identification information (ID) that is associated with a position in a media content (M). A vibration source (13) is installed in the housing (11) and capable of generating vibration. A control device (15) is installed in the housing (11) and configured to cause the vibration source (13) to generate vibration corresponding to vibration waveform information (VW) that is associated with the identification information (ID).