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Class Information
Number: 178/19.05
Name: Telegraphy > Systems > Position coordinate determination for writing (e.g., writing digitizer pad, stylus, or circuitry) > Writing digitizer stylus > Light pen
Description: Subject matter wherein the pointing device is a light sensitive device which consists of an optical lens and a photocell with associated circuitry mounted in a tubular housing.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8711101 Information processing apparatus and storage medium for storing information processing program Apr. 29, 2014
8624835 Interactive input system and illumination system therefor Jan. 7, 2014
8619065 Universal stylus device Dec. 31, 2013
8587526 Gesture recognition feedback for a dual mode digitizer Nov. 19, 2013
8570307 Electronic writing instrument, computer system, electronic writing method and computer readable medium Oct. 29, 2013
8547364 Input system for controlling electronic device Oct. 1, 2013
8531437 Handwriting input system Sep. 10, 2013
8525784 Input device for use with a display system Sep. 3, 2013
8477117 Embedded optical induction input device and method of implementing the same Jul. 2, 2013
8462139 Solid state image sensor suitable for touch screens Jun. 11, 2013
8454257 Hand-writing input device and hand-writing input system Jun. 4, 2013
8456419 Determining a position of a pointing device Jun. 4, 2013
8451223 Pointing apparatus, pointer control apparatus, pointing method, and pointer control method May. 28, 2013
8436813 Pointing device and method and pointer display apparatus and method May. 7, 2013
8436837 Stylus input system May. 7, 2013
8436836 Method and apparatus for forming, projecting and detecting a coded pattern image with a camera and recognition system May. 7, 2013
8416188 System for controlling movement of a cursor on a display device Apr. 9, 2013
8405613 Optimization of statistical movement measurement for optical mouse, with particular application to laser-illuminated surfaces Mar. 26, 2013
8405607 Optical navigation device and associated methods Mar. 26, 2013
8384696 Carrier for a digital pen Feb. 26, 2013
8358289 Controller arrangement for an optical sensing pen with an infrared data association (IRDA) interface Jan. 22, 2013
8350829 Input pen for touch-panel and touch-panel input system Jan. 8, 2013
8345002 Control apparatus and method for controlling an image display Jan. 1, 2013
8339378 Interactive input system with multi-angle reflector Dec. 25, 2012
8319745 Method of estimating nib position using images captured at different pen rotations Nov. 27, 2012
8319753 Optical pen and optical touch system with same Nov. 27, 2012
8305346 Multi-directional remote control system and method with automatic cursor speed control Nov. 6, 2012
8294675 Touchpad and pick button assembly Oct. 23, 2012
8269746 Communication with a touch screen Sep. 18, 2012
8248387 Efficient buffering of data frames for multiple clients Aug. 21, 2012
8232966 Multiple input optical navigation system Jul. 31, 2012
8194038 Multi-directional remote control system and method with automatic cursor speed control Jun. 5, 2012
8169423 Electronic writing instrument, computer system, electronic writing method and computer readable medium May. 1, 2012
8149213 Mouse pointer function execution apparatus and method in portable terminal equipped with camera Apr. 3, 2012
8144127 Input/output integrated display apparatus Mar. 27, 2012
8081171 Digital pen and a method of storing digital records of the use made of the digital pen Dec. 20, 2011
8081172 Pen unit and electronic apparatus Dec. 20, 2011
8049721 Pointer light tracking method, program, and recording medium thereof Nov. 1, 2011
8044943 Touch panel Oct. 25, 2011
8031187 Method for managing information Oct. 4, 2011
8031982 Pen-shaped sensing device for sensing surface regions Oct. 4, 2011
8013841 Enhanced lift detection technique for a laser illuminated optical mouse sensor Sep. 6, 2011
8009152 Refined coordinate detection method and error correction method for touch panel Aug. 30, 2011
7952570 Computer navigation May. 31, 2011
7903905 Pen-shaped scanning device having a region identity sensor Mar. 8, 2011
7898505 Display system Mar. 1, 2011
7786984 Method and system for processing observation charts Aug. 31, 2010
7773076 Electronic pen holding Aug. 10, 2010
7714843 Computer input device with a self-contained camera May. 11, 2010
7705837 System and method for alarming for misplaced computer tablet pen Apr. 27, 2010

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