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Class Information
Number: 178/18.09
Name: Telegraphy > Systems > Position coordinate determination for writing (e.g., writing digitizer pad, stylus, or circuitry) > Writing digitizer pad > Optical
Description: Subject matter wherein position coordinates are determined by a property (e.g., type, material, temperature, and structure of connection) of a photocell (e.g., photodiode or phototransistor) that is included in the sensing surface.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8711125 Coordinate locating method and apparatus Apr. 29, 2014
8692805 Coordinate input apparatus, control method, and storage medium Apr. 8, 2014
8692806 On a substrate formed or resting display arrangement Apr. 8, 2014
8692807 Touch surface with a compensated signal profile Apr. 8, 2014
8686974 Touch-sensitive system and method for controlling the operation thereof Apr. 1, 2014
8686971 Liquid crystal display device and a method of manufacturing the same Apr. 1, 2014
8681096 Automatic switching between functions emulated by a click pad device Mar. 25, 2014
8674963 Waveguide configurations for optical touch systems Mar. 18, 2014
8669951 Optical touch panel and touch display panel and touch input method thereof Mar. 11, 2014
8665243 Sensor device, method of driving sensor element, display device with input function and electronic unit Mar. 4, 2014
8659578 Optical sensing unit, display module and display device using the same Feb. 25, 2014
8659576 Liquid crystal display with touch screen function and method for detecting external illuminance using the same Feb. 25, 2014
8659561 Display device including optical sensing frame and method of sensing touch Feb. 25, 2014
8654099 Control of data processing based on inter-image motion detection Feb. 18, 2014
8648836 Hybrid pointing device Feb. 11, 2014
8638317 Display apparatus and method for controlling the same Jan. 28, 2014
8629856 Apparatus and method for acquiring object image of a pointer Jan. 14, 2014
8629854 Controlling method applied to a sensing system Jan. 14, 2014
8624835 Interactive input system and illumination system therefor Jan. 7, 2014
8624853 Structure-augmented touch sensing with frustated total internal reflection Jan. 7, 2014
8619061 Optical touch apparatus and operating method thereof Dec. 31, 2013
8619062 Touch-pressure sensing in a display panel Dec. 31, 2013
RE44658 Storage medium having input processing program stored thereon and input processing device Dec. 24, 2013
8610668 Computer keyboard with input device Dec. 17, 2013
8605057 Reflection detection apparatus, display apparatus, electronic apparatus, and reflection detection method Dec. 10, 2013
8605059 Input/output device and driving method thereof Dec. 10, 2013
8599138 Information processing apparatus, information processing method and computer program Dec. 3, 2013
8600107 Interactive input system and method Dec. 3, 2013
8593435 Optical touch apparatus with high resolution and method of operating the same Nov. 26, 2013
8587563 Touch system and positioning method therefor Nov. 19, 2013
8576199 Computer control systems Nov. 5, 2013
8558817 Optical touch-control system Oct. 15, 2013
8558818 Optical touch system with display screen Oct. 15, 2013
8553935 Computer interface employing a manipulated object with absolute pose detection component and a display Oct. 8, 2013
8542217 Optical touch detection using input and output beam scanners Sep. 24, 2013
8537124 Touch sensor, liquid crystal display panel having the same and driving method for the same Sep. 17, 2013
8537140 Illuminated touch sensitive surface module and illuminated device thereof Sep. 17, 2013
8531413 Touch panel and touch display panel Sep. 10, 2013
8525815 Optical touch system with display screen Sep. 3, 2013
8525814 System and method of distinguishing multiple touch points applied to an optical touch system Sep. 3, 2013
8525813 Multi-point interface for a graphical modeling environment Sep. 3, 2013
8519979 Multi-point interface for a graphical modeling environment Aug. 27, 2013
8513547 Image reading apparatus and image reading method Aug. 20, 2013
8514201 Image pickup device, display-and-image pickup device, and electronic device Aug. 20, 2013
8508508 Touch screen signal processing with single-point calibration Aug. 13, 2013
8508506 Illumination device and electro-optical apparatus Aug. 13, 2013
8508486 Directional haptic effects for a handheld device Aug. 13, 2013
8502803 Drift compensated optical touch screen Aug. 6, 2013
8497835 Electro phoretic display device including touch panel Jul. 30, 2013
8493365 Optical touch display apparatus Jul. 23, 2013

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