Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7372456 | Method and apparatus for calibrating an interactive touch system A method of calibrating an interactive touch system includes moving a pointer along at least one path on a touch surface over a calibration image presented on the touch surface. Pointer coordinates are generated generally continuously during the tracing representing... | 05/13/2008 |
| 7289113 | Projection display system with pressure sensing at screen, and computer assisted alignment implemented by applying pressure at displayed calibration marks An interactive display system comprising a touch sensitive display surface for sensing pressure applied thereto and in response generating control signals indicating locations of the applied pressure, a personal computer for receiving the control signals and in resp... | 10/30/2007 |
| 7283126 | System and method for providing gesture suggestions to enhance interpretation of user input A touch system comprises a touch panel having a touch surface and a projector presenting images onto the touch surface. A computer executing an applications program is coupled to the touch panel and the projector. The computer is responsive to contact output generat... | 10/16/2007 |
| 7274356 | Apparatus for determining the location of a pointer within a region of interest An apparatus for detecting a pointer within a region of interest includes a first reflective element extending along a first side of the region of interest and reflecting light towards the region of interest. A second reflective element extends along a second side o... | 09/25/2007 |
| 7256772 | Auto-aligning touch system and method A touch system includes a touch surface on which an image is, displayed and at least one camera acquiring images of the touch surface. A pointer contact data generator generates pointer position data in response to pointer contact with the touch surface. The pointer... | 08/14/2007 |
| 7236162 | Passive touch system and method of detecting user input A passive touch system includes a passive touch surface and at least two cameras associated with the touch surface. The at least two cameras acquire images of the touch surface from different locations and have overlapping fields of view. A processor receives and pr... | 06/26/2007 |
| 7232986 | Apparatus for detecting a pointer within a region of interest An apparatus for detecting a pointer within a region of interest includes at least one pair of imaging devices. The imaging devices have overlapping fields of view encompassing the region of interest. At least one light source provides illumination across the region... | 06/19/2007 |
| 7184030 | Synchronization of cameras in camera-based touch system to enhance position determination of fast moving objects A camera-based touch system includes at least one pair of cameras having overlapping fields of view and a touch surface encompassed within the overlapping fields of view across which a pointer is moved. The cameras of the at least one pair acquire images at interval... | 02/27/2007 |
| 7151533 | Keyboard for an electronic writeboard and method An electronic writeboard for communicating with a computer including applications software and running an active application comprises a touch sensitive panel on which the screen image output of the computer is displayed. The touch sensitive panel is responsive to u... | 12/19/2006 |
| 6972401 | Illuminated bezel and touch system incorporating the same A passive touch system includes a touch surface and at least one source of backlight illumination projecting backlighting across the touch surface. At least two image sensors are associated with the touch surface and acquire images of the touch surface from differen... | 12/06/2005 |
| 6954197 | Size/scale and orientation determination of a pointer in a camera-based touch system A touch system includes a touch surface and at least two cameras associated with the touch surface. The at least two cameras acquire images of the touch surface from different locations and having overlapping fields of view. A digital signal processor is associated ... | 10/11/2005 |
| 6947032 | Touch system and method for determining pointer contacts on a touch surface A system and method for determining pointer contacts on a touch surface includes a touch surface to be contacted by a pointer. At least one imaging device having a field of view looks generally along the touch surface. At least one processor communicates with the at... | 09/20/2005 |
| 6919880 | Calibrating camera offsets to facilitate object position determination using triangulation A touch system includes a reference frame, and at least two cameras having fields of view that overlap within the reference frame. The position of an object relative to the reference frame is determined from captured images of the object based on triangulation. The ... | 07/19/2005 |
| 6215477 | Touch sensitive display panel A touch sensitive display panel comprises a noisy display panel having a display screen on which images are displayed. An electronic writeboard is provided on the noisy display panel and overlies the display screen. Images displayed on the display screen ... | 04/10/2001 |
| 6141000 | Projection display system with touch sensing on screen, computer assisted alignment correction and network conferencing An interactive display system comprising a touch sensitive display surface for sensing pressure applied thereto and in response generating control signals indicating locations of the applied pressure, a personal computer for receiving the control signals ... | 10/31/2000 |
| 6070247 | Method and apparatus for controlling power to a multi-media conferencing system using any one of a system power switch and a computer A multi-media conferencing system (10) that links desirable conferencing components into an adaptable and functional whole through innovative system approaches to system level controls. Another object of the present invention is to provide a multi-media c... | 05/30/2000 |
