| Patents for H03M 11 - Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys (4,545) |
|---|
| 03/24/1981 | CA1098213A1 Operator controlled programmable keyboard apparatus |
| 03/10/1981 | CA1097419A1 Calculator apparatus with electronically alterable key symbols |
| 02/17/1981 | US4251805 Circuit arrangement for an input keyboard |
| 02/10/1981 | US4250401 Data input device |
| 02/04/1981 | EP0023271A1 Microprocessor-controlled data-input keyboard with variable-impedance keys |
| 01/20/1981 | CA1094197A1 Keyboard encoding with repeat key pause |
| 12/30/1980 | US4242676 Interactive device for data input into an instrument of small dimensions |
| 12/23/1980 | US4241333 Key-operated arrangement for producing code characters |
| 12/16/1980 | CA1091783A1 Keyboard encoding system with electronic hysteresis |
| 12/10/1980 | EP0020118A1 Finger control system |
| 11/18/1980 | US4234872 Circuit arrangement for a keyboard |
| 10/28/1980 | US4231024 Device for a digital arithmetic processing apparatus |
| 10/28/1980 | US4231016 Input signal recognition circuit |
| 09/30/1980 | CA1086539A1 Device for detecting a key switch operation |
| 09/09/1980 | US4222038 Microcomputer keyboard input circuitry |
| 09/09/1980 | CA1085487A1 One-handed keyboard and its control means |
| 09/09/1980 | CA1085486A1 Arrangements for coding of data characters |
| 07/08/1980 | US4211915 Keyboard verification system |
| 06/11/1980 | EP0011840A1 Keyboard verification system and method |
| 05/28/1980 | EP0011307A2 Method and apparatus for character code generation |
| 05/20/1980 | US4204089 Keyboard method and apparatus for accented characters |
| 05/14/1980 | EP0011050A1 Enciphering and deciphering apparatus |
| 05/06/1980 | US4202038 Method of effecting one of several different circuit connections |
| 04/29/1980 | US4200926 Electronic calculator implemented in semiconductor LSI chips with scanned keyboard and display |
| 04/29/1980 | US4200913 Operator controlled programmable keyboard apparatus |
| 04/22/1980 | US4199751 Device for the input of alphanumerical data for apparatus of small size |
| 04/22/1980 | US4199750 Key input circuit capable of roll-over operation |
| 03/18/1980 | US4194188 Interrogation of key switches using pulse width detection |
| 03/11/1980 | CA1073554A1 Keyboard circuit |
| 03/04/1980 | US4191481 Analogical control device for a typewriting machine to be used by handicapped persons |
| 02/12/1980 | US4188626 Method for scanning a keyboard and for actuating a display device via common conductors |
| 01/29/1980 | US4186385 Electronic apparatus push button keyboard assembly |
| 01/22/1980 | CA1070411A1 Signal input devices and systems |
| 01/15/1980 | US4184147 Input device for input of alphanumeric characters into a computer |
| 11/20/1979 | CA1066811A1 Electronic dictionary and language interpreter |
| 11/06/1979 | US4173753 Input system for sino-computer |
| 07/31/1979 | US4163222 Synchronous phase detected keyboard |
| 07/17/1979 | US4161664 Input circuit |
| 07/17/1979 | CA1058781A1 Crt cursor scan control circuits |
| 06/27/1979 | EP0002434A1 Remote control for the controlling and switching and the commuting of functions and of control magnitudes in telecommunication equipment |
| 06/26/1979 | CA1057402A1 Strobing scheme and keyboard sensing circuit for a one chip calculator |
| 06/26/1979 | CA1057203A1 Keyboard entry circuitry of the key strobing type |
| 06/13/1979 | EP0002247A1 Apparatus for transmitting characters, applicable to a push button telephone set |
| 06/12/1979 | US4158236 Electronic dictionary and language interpreter |
| 05/08/1979 | CA1054273A1 Interactive stylus sensor apparatus for gas panel display |
| 04/03/1979 | US4148017 Device for detecting a key switch operation |
| 04/03/1979 | CA1052007A1 Calculator having merged key codes |
| 03/20/1979 | US4145687 Keyboard switch circuit for use in a matrix which has a series circuit including a reluctance element and a diode connected between each row and column of the matrix |
| 02/21/1979 | EP0000696A1 Fingerkey arrangement for generating signals by means of keys arranged by pairs or quadratically and forming part of an AND circuit |
| 02/13/1979 | US4138916 Key assignor |
| 01/16/1979 | US4134537 Transaction terminal |
| 01/16/1979 | CA1046418A1 Signal input devices and systems |
| 11/21/1978 | CA1042810A1 Keying input apparatus |
| 10/17/1978 | US4121048 Multiple shift electronic keyboard |
| 10/10/1978 | US4120040 Electronic calculator |
| 10/03/1978 | US4118700 Single wire transmission of multiple switch operations |
| 10/03/1978 | US4118695 Data processing system |
| 08/29/1978 | US4110749 Touch display to digital encoding system |
| 08/22/1978 | CA1036945A1 Keyboard with multiple contact points for each key |
| 08/08/1978 | US4106011 Keyboard circuit |
| 07/25/1978 | US4103308 Digital information input method |
| 07/11/1978 | US4100606 Key debounce system for electronic calculator or microprocessor |
| 07/04/1978 | US4099246 Calculator having merged key codes |
| 07/04/1978 | US4099177 Keyboard entry circuitry of the key strobing type |
| 05/16/1978 | US4089156 Stop watch device |
| 05/09/1978 | US4088994 Paralleled output self-encoding keyboard |
| 05/02/1978 | US4087861 Calculator |
| 04/25/1978 | US4086588 Signal generator |
| 03/28/1978 | US4081859 Electronic calculator for feet-inch-fraction numerics |
| 03/14/1978 | US4079447 Stored program electronic computer |
| 03/14/1978 | US4079234 Manual key input apparatus |
| 03/07/1978 | US4078257 Calculator apparatus with electronically alterable key symbols |
| 02/28/1978 | US4077036 Data entry devices |
| 02/21/1978 | US4075702 Electronic calculating apparatus and wallet enclosure |
| 02/21/1978 | US4075621 Hand held communication aid for the dumb |
| 02/14/1978 | US4074262 Key input circuit |
| 02/14/1978 | US4074261 Keyboard contact and signal line arrangement |
| 02/14/1978 | US4074233 Selection switch memory circuit |
| 02/07/1978 | US4072820 Apparatus for coding input data characters |
| 01/31/1978 | US4071720 Binary coded cam selector switch having split housing and dent structure |
| 01/24/1978 | US4070664 Key controlled digital system having separated display periods and key input periods |
| 01/10/1978 | US4068226 Apparatus and method for data entry and display |
| 01/10/1978 | US4068089 Data indicator unit |
| 01/10/1978 | US4067431 Combinational keyboard with movable keys and adapted for one-handed keying of numerical information |
| 01/03/1978 | US4066350 Character display and input device |
| 12/27/1977 | US4065754 Input device for processing system probe controlled |
| 12/20/1977 | US4064560 Master keyboard terminal with auxiliary keyboard terminal capability |
| 12/20/1977 | US4064399 Electronic calculator having keyboard for entering data |
| 10/11/1977 | US4053753 Electronic calculator with function keys |
| 09/27/1977 | US4051471 Key input means providing common key identifying and display driving digit timing signals |
| 09/13/1977 | US4048484 Digital grade averager |
| 09/06/1977 | US4047010 Multi-functional electronic watch |
| 08/16/1977 | US4042777 One-handed keyboard and its control means |
| 08/09/1977 | US4041295 Electronic timepiece calculator |
| 07/19/1977 | US4037225 Keyboard encoding system with electronic hysteresis |
| 06/28/1977 | US4032931 Money transfer device keyboard terminal |
| 06/07/1977 | US4028695 Data terminals having interactive keyboards and displays and data processing apparatus incorporating such terminals |
| 05/24/1977 | US4025899 Circuit arrangement for data input and output in data processing devices |
| 05/17/1977 | US4024534 Keyboard encoding with repeat key pause |
| 05/10/1977 | US4022296 Signal input devices and systems |