| Patents for G08C 21 - Systems for transmitting the position of an object with respect to a predetermined reference system, e.g. tele-autographic system (996) |
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| 04/26/1992 | CA2028505A1 Hollow shell deflection reading system |
| 12/11/1991 | EP0460063A1 Sparking stylus for acoustic digitizer. |
| 11/13/1991 | EP0377558A4 Touch screen input system |
| 07/20/1991 | WO1991010981A1 Position determining apparatus and method |
| 07/20/1991 | CA2074077A1 Position determining apparatus and method |
| 04/30/1991 | CA1283724C Motion and position sensor |
| 04/23/1991 | US5010557 Mobile radio transmitter using band expanding method |
| 04/20/1991 | CA2003095A1 An improved meter reading device |
| 04/10/1991 | CA2000334A1 Decta |
| 04/05/1991 | CA2200115A1 Mechanical/electrical displacement transducer |
| 04/05/1991 | CA2200114A1 Mechanical/electrical displacement transducer |
| 04/05/1991 | CA2200113A1 Mechanical/electrical displacement transducer |
| 04/05/1991 | CA2200112A1 Mechanical/electrical displacement transducer |
| 04/05/1991 | CA2200111A1 Mechanical/electrical displacement transducer |
| 04/05/1991 | CA2200110A1 Mechanical/electrical displacement transducer |
| 04/05/1991 | CA2200109A1 Mechanical/electrical displacement transducer |
| 04/05/1991 | CA2200108A1 Mechanical/electrical displacement transducer |
| 04/05/1991 | CA2200107A1 Mechanical/electrical displacement transducer |
| 04/05/1991 | CA2200106A1 Mechanical/electrical displacement transducer |
| 01/15/1991 | CA1279119C Digitizer system with loopback conductor grid |
| 08/24/1990 | WO1990010283A1 Sparking stylus for acoustic digitizer |
| 08/24/1990 | CA2047238A1 Sparking stylus for acoustic digitizer |
| 07/18/1990 | EP0377558A1 Touch screen input system |
| 06/28/1990 | WO1990007171A1 Ink-on-glass digitizer tablet and method of construction |
| 06/19/1990 | CA1270540A1 Guidance system for farm implements |
| 05/15/1990 | CA1269146A2 Angular position detector |
| 05/04/1990 | CA2002040A1 Optical sensor |
| 01/02/1990 | US4891474 Sparking stylus for acoustic digitizer |
| 10/10/1989 | US4873399 Ink-on-glass digitizer tablet and method of construction |
| 10/10/1989 | CA1262269A1 Optical encoder with two photosensors |
| 09/26/1989 | CA1261939A1 High resolution leveling resistor |
| 03/21/1989 | CA1251538A2 Photoelectric input apparatus |
| 03/07/1989 | CA1250923A2 Photoelectric input apparatus |
| 02/23/1989 | WO1989001677A1 Touch screen input system |
| 01/24/1989 | CA1249354A1 Arrangement for determining the travel of a piston |
| 12/28/1988 | CA1247718A Photoelectric input apparatus |
| 09/22/1988 | WO1988007247A1 Digitizer system with loopback conductor grid |
| 08/23/1988 | CA1241086A1 Structural monitoring system using fiber optics |
| 05/24/1988 | CA1237179A1 Eye-position sensor |
| 03/29/1988 | US4734546 Digitizer system with loopback conductor grid |
| 01/19/1988 | CA1231766A1 Multimode fiber optic rotation sensor |
| 11/03/1987 | CA1228906A2 Photoelectric input apparatus |
| 09/29/1987 | CA1227551A1 Control device for switches fitted onto an automobile steering wheel |
| 09/22/1987 | CA1227261A1 Transducer |
| 09/08/1987 | CA1226644A1 Transducers |
| 09/01/1987 | CA1226351A1 Apparatus for detecting the position of a probe relative to a workpiece |
| 06/16/1987 | EP0157821A4 Conductive electrode arrays and arrays of resistive elements for use in touch panels and for producing electric fields. |
| 08/19/1986 | CA1210109A1 Electrical measuring instrument |
| 07/02/1986 | CA1207056A Precision linear potentiometer sensor and method for producing same |
| 05/20/1986 | CA1204864A1 System for automatically calibrating the space coordinates of a robot gripper in six degrees of freedom |
| 02/18/1986 | CA1200892A1 Electrographic system and method |
| 11/19/1985 | CA1197000A1 Travel locus display device |
| 11/19/1985 | CA1196989A1 Hitching guidance device |
| 11/12/1985 | CA1196728A1 Modular shaft encoder system for non-binary counts |
| 10/16/1985 | EP0157821A1 Conductive electrode arrays and arrays of resistive elements for use in touch panels and for producing electric fields |
| 07/09/1985 | US4528552 Travel locus display device |
| 07/03/1985 | EP0065568B1 Touch position locating arrangement |
| 07/02/1985 | CA1189930A1 Method of sensing position of movable body and apparatus therefor |
| 06/26/1985 | EP0065567B1 Touch position locating system |
| 03/28/1985 | WO1985001375A1 Conductive electrode arrays and arrays of resistive elements for use in touch panels and for producing electric fields |
| 02/05/1985 | CA1182187A1 Method and apparatus for the determination of the position of a surface |
| 09/11/1984 | CA1174320A1 Optical transducer for detecting the angular position of a rotating member with respect to a fixed structure |
| 08/14/1984 | CA1172725A1 Dynamic level shifter for photoelectric touch panel |
| 07/03/1984 | CA1170368A1 Touch position locating system |
| 07/03/1984 | CA1170352A1 Touch position locating arrangement |
| 06/26/1984 | US4456377 Multimode fiber optic rotation sensor |
| 06/05/1984 | CA1168771A1 Remote chalkboard automatic cursor |
| 01/17/1984 | US4426644 Method and apparatus for generating three coordinate signals x, y, z for an x, y, z display device |
| 01/03/1984 | US4424572 Device for the digital transmission and display of graphics and/or of characters on a screen |
| 11/08/1983 | CA1156737A1 Alarm modification for meteorological instrument |
| 10/18/1983 | CA1155522A1 Converter of meter-gauge readings |
| 06/08/1983 | EP0065567A4 Touch position locating system. |
| 05/16/1983 | EP0065568A4 Touch position locating arrangement. |
| 05/11/1983 | WO1983001683A1 Multimode fiber optic rotation sensor |
| 03/29/1983 | US4378465 Apparatus for generating a signal representative of a co-ordinate position of a movable indicating member |
| 12/28/1982 | CA1138554A1 Automatic orientation circuit indicator device for portable power tools and the like |
| 12/01/1982 | EP0065568A1 Touch position locating arrangement. |
| 12/01/1982 | EP0065567A1 Touch position locating system. |
| 10/19/1982 | US4355202 Mounting arrangement for a position locating system |
| 07/20/1982 | US4340777 Dynamic position locating system |
| 07/06/1982 | CA1127262A1 Electronic two-directional control apparatus |
| 06/24/1982 | WO1982002107A1 Touch position locating arrangement |
| 06/24/1982 | WO1982002106A1 Touch position locating system |
| 03/24/1982 | EP0047868A2 Process and apparatus for producing x,y,z-coordinate signals for a x,y,z-coordinates representation device |
| 03/02/1982 | US4317956 Remote chalkboard automatic cursor |
| 12/22/1981 | CA1114942A1 Bidirectional telewriting system operating in an alternating mode over a single carrier |
| 09/08/1981 | CA1108718A1 Resistive planar graphical entry device |
| 06/03/1981 | EP0029664A1 Apparatus for generating a signal representative of a co-ordinate position of a movable indicating member |
| 03/25/1981 | EP0025748A1 Device for transmitting digitally and for displaying graphics and/or characters to and on a screen |
| 01/07/1981 | EP0021928A1 Writing device for a television screen and remote writing system comprising such a device |
| 07/22/1980 | US4214123 Bidirectional telewriting system operating in an alternating mode over a single carrier |
| 06/24/1980 | CA1080325A1 Automatic coordinate determining device |
| 11/14/1978 | US4125743 Graphics transmission system |
| 01/24/1978 | US4070544 Electrographic apparatus and method of producing an electrode surface therefor |
| 01/18/1977 | US4004088 System for the formulation and transmission of coordinate information to reproduce handwritten items |
| 09/28/1976 | US3983322 Method and apparatus for converting the location and movement of a manually controlled instrument into corresponding electrical signals |