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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:
| Patent Number |
Title Of Patent |
Date Issued |
| 7586479 |
Display device and driving method thereof |
Sep. 8, 2009 |
| 7570249 |
Responding to change of state of control on device disposed on an interactive display surface |
Aug. 4, 2009 |
| 7553537 |
Position identification pattern |
Jun. 30, 2009 |
| 7534988 |
Method and system for optical tracking of a pointing object |
May. 19, 2009 |
| 7532206 |
System and method for differentiating between pointers used to contact touch surface |
May. 12, 2009 |
| 7525536 |
Coordinate input device, control method therefor, and control program for implementing the method |
Apr. 28, 2009 |
| 7515143 |
Uniform illumination of interactive display panel |
Apr. 7, 2009 |
| 7511703 |
Using size and shape of a physical object to manipulate output in an interactive display application |
Mar. 31, 2009 |
| 7477241 |
Device and method for optical touch panel illumination |
Jan. 13, 2009 |
| 7466308 |
Disposing identifying codes on a user's hand to provide input to an interactive display application |
Dec. 16, 2008 |
| 7460110 |
Dual mode touch system |
Dec. 2, 2008 |
| 7429706 |
Interactive IR electronic white board |
Sep. 30, 2008 |
| 7414617 |
Coordinate input device working with at least display screen and desk-top surface as the pointing areas thereof |
Aug. 19, 2008 |
| 7345676 |
Text entry for electronic device |
Mar. 18, 2008 |
| 7333095 |
Illumination for optical touch panel |
Feb. 19, 2008 |
| 7333094 |
Optical touch screen |
Feb. 19, 2008 |
| 7310090 |
Optical generic switch panel |
Dec. 18, 2007 |
| 7286111 |
Apparatus for electro-optically writing a display |
Oct. 23, 2007 |
| 7280102 |
Light sensitive display |
Oct. 9, 2007 |
| 7277085 |
Orientation sensing device |
Oct. 2, 2007 |
| 7274356 |
Apparatus for determining the location of a pointer within a region of interest |
Sep. 25, 2007 |
| 7250939 |
Display motion multiplier |
Jul. 31, 2007 |
| 7230611 |
HMI device with optical touch screen |
Jun. 12, 2007 |
| 7176905 |
Electronic device having an image-based data input system |
Feb. 13, 2007 |
| 7154483 |
Touch panel device |
Dec. 26, 2006 |
| 7138986 |
Touch-type input apparatus |
Nov. 21, 2006 |
| 7136053 |
Projector and camera arrangement with shared optics and optical marker for use with whiteboard systems |
Nov. 14, 2006 |
| 7123245 |
Computer system for providing user interaction via an interface surface |
Oct. 17, 2006 |
| 7116316 |
Audible and visual effects as a result of adaptive tablet scanning |
Oct. 3, 2006 |
| 7113270 |
Determination of an orientation parameter of an elongate object with a scan beam apparatus |
Sep. 26, 2006 |
| 7079116 |
Method of processing data of optical mouse |
Jul. 18, 2006 |
| 7050048 |
Coordinate input and detection device and information display and input apparatus |
May. 23, 2006 |
| 7042444 |
OLED display and touch screen |
May. 9, 2006 |
| 7027038 |
System and method for locating on a physical document items referenced in another physical document |
Apr. 11, 2006 |
| 7013029 |
Incorporating handwritten notations into an electronic document |
Mar. 14, 2006 |
| 6982703 |
Handwritten text capture via interface surface having coded marks |
Jan. 3, 2006 |
| 6972753 |
Touch panel, display device provided with touch panel and electronic equipment provided with display device |
Dec. 6, 2005 |
| 6943774 |
Portable communication terminal, information display device, control input device and control input method |
Sep. 13, 2005 |
| 6924791 |
Method and apparatus for automatic power-up and power-down of a computer system based on the positions of an associated stylus and/or hinge |
Aug. 2, 2005 |
| 6911972 |
User interface device |
Jun. 28, 2005 |
| 6906702 |
Coordinate input device and its control method, and computer readable memory |
Jun. 14, 2005 |
| 6828959 |
Method and device for inputting coordinate-position and a display board system |
Dec. 7, 2004 |
| 6803906 |
Passive touch system and method of detecting user input |
Oct. 12, 2004 |
| 6788295 |
Touch pad using a non-electrical deformable pressure sensor |
Sep. 7, 2004 |
| 6781577 |
Capacitive sensor-based input device |
Aug. 24, 2004 |
| 6771283 |
Method and system for accessing interactive multimedia information or services by touching highlighted items on physical documents |
Aug. 3, 2004 |
| 6731271 |
Coordinate input device and its control method, and computer readable memory |
May. 4, 2004 |
| 6697052 |
Optical mouse chip with silicon retina structure |
Feb. 24, 2004 |
| 6689966 |
System and method for determining positional information |
Feb. 10, 2004 |
| 6667695 |
Position code |
Dec. 23, 2003 |
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