| Patents for H03M 11 - Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys (4,545) |
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| 01/24/1984 | US4427969 Interface circuit for a meter reading device |
| 01/18/1984 | EP0098531A2 Momentary digital encoding device for keyboards |
| 01/10/1984 | CA1160316A1 Keyboard with an externally programmable repeat rate and repeat delay rate counter |
| 12/13/1983 | US4420744 Keyboard crosspoint encoder having N-key rollover |
| 12/13/1983 | CA1158741A1 Bi-directional information transfer on a single direction bus |
| 11/30/1983 | EP0095023A2 Contact keyboard with finger controlled N-key rollover |
| 11/22/1983 | CA1157567A1 Text recorder with automatic word ending |
| 11/16/1983 | EP0094234A2 Combinational logic structure using pass transistors |
| 11/16/1983 | EP0094130A2 Data entry keyboard apparatus |
| 11/15/1983 | CA1157158A1 Matrix encoder for resistive sensor arrays |
| 11/08/1983 | US4414538 Keyboard sense gate |
| 10/25/1983 | US4412218 Remote control signal transmitter capable of setting custom codes individually alloted to a plurality of controlled instruments |
| 10/25/1983 | US4412210 Electronic calculator with acoustic confirmation of key actuation and acoustical alarms |
| 10/25/1983 | CA1155963A1 Scan-controlled keyboard |
| 10/04/1983 | US4408184 Keyboard switch circuit |
| 09/28/1983 | EP0089646A2 Input system using switch matrix |
| 09/27/1983 | US4406998 Non-verbal communication device |
| 09/20/1983 | US4405917 Matrix screening and grounding arrangement and method |
| 09/14/1983 | EP0088534A1 Keyboard terminal type identification |
| 08/23/1983 | US4400593 Key array |
| 08/09/1983 | US4398181 Keyboard entry system |
| 08/02/1983 | US4396992 Word processor |
| 07/27/1983 | EP0084247A2 Operation mode setting circuitry for microprocessor |
| 07/26/1983 | US4395704 Input device for electronic apparatus |
| 07/06/1983 | EP0083252A1 Apparatus for providing interchangeable keyboard functions |
| 06/28/1983 | US4390866 Keyboard with electronic hysteresis |
| 06/07/1983 | CA1147868A1 Program controlled capacitive keyboard sensing system |
| 05/31/1983 | US4386347 Method of, and apparatus for, increased resolution slewing of a bar-graph-display data input/output system |
| 05/25/1983 | EP0079831A1 Sequential generator with manual control for a digital code |
| 05/03/1983 | CA1145855A1 Low cost programmable video computer terminal |
| 04/27/1983 | EP0077658A2 Keyboard scanning and interface method and circuit |
| 04/26/1983 | US4381502 Method and apparatus for character generation |
| 04/26/1983 | US4381501 Encoding apparatus utilizing acoustic waves of controlled initial polarity |
| 03/23/1983 | EP0074757A1 Data logging device |
| 02/23/1983 | EP0072471A2 Keyboard unit control system |
| 02/22/1983 | US4375036 Keyboard strobe generation system |
| 02/22/1983 | US4374625 Text recorder with automatic word ending |
| 02/22/1983 | CA1141874A1 Switch scanning means for use with integrated circuits |
| 02/15/1983 | US4374429 Information transfer system wherein bidirectional transfer is effected utilizing unidirectional bus in conjunction with key depression signal line |
| 02/15/1983 | US4374425 Single actuator electronic minicomputer |
| 02/15/1983 | US4374384 Matrix encoder for resistive sensor arrays |
| 02/01/1983 | US4371870 Fail transparent LCD display with backup |
| 01/19/1983 | EP0070038A2 Input device |
| 01/19/1983 | EP0069789A1 Integrated circuit for a data input keyboard of an electronic apparatus |
| 01/18/1983 | US4369440 Data input device |
| 01/05/1983 | EP0068941A1 Apparatus for discriminating the four states of a three-key keyboard |
| 12/22/1982 | EP0067516A1 Shift control system for keyboards |
| 12/21/1982 | CA1138069A1 Encipher-decipher device |
| 12/08/1982 | EP0066063A2 Report preparation |
| 12/08/1982 | EP0066047A2 Method for assisting an operator of an interactive text processing system in entering instructional data which define a desired rearrangement of fields in a stored file of spatially related data |
| 12/07/1982 | US4363108 Low cost programmable video computer terminal |
| 11/17/1982 | EP0064627A1 Keyboard coding apparatus |
| 11/03/1982 | EP0063800A2 Keyboard apparatus |
| 11/02/1982 | CA1134925A1 Key input circuit |
| 09/29/1982 | EP0061146A2 Non-verbal communication device |
| 09/07/1982 | US4348741 Priority encoder |
| 08/24/1982 | US4346369 Keyboard encoder-decoder |
| 08/10/1982 | US4344069 Method and apparatus for character generation |
| 07/06/1982 | US4338518 Position encoder with column scanning and row sensing |
| 06/30/1982 | EP0054620A2 Data processing terminal |
| 06/22/1982 | CA1126422A1 Device for selecting values of data elements |
| 06/15/1982 | US4335374 Key discrimination circuit |
| 06/08/1982 | US4334212 Electronic latch for digitally actuating a load |
| 05/18/1982 | CA1123933A1 Input signal recognition circuit |
| 04/27/1982 | CA1122714A1 Portable keyboard device |
| 04/20/1982 | US4326194 Dual encoded switching matrix |
| 03/24/1982 | EP0048064A1 Method and system for transmitting information in a communication system |
| 03/10/1982 | EP0047111A2 Matrix encoder for resistive sensor arrays |
| 03/09/1982 | US4319077 Circuit for coded symbol conversion |
| 03/02/1982 | US4318087 Switch closure sensing circuit |
| 02/17/1982 | EP0045782A1 Scan-controlled keyboard |
| 01/26/1982 | US4313031 Encipher-decipher device having semi-automatic generation of the code key during data entry |
| 01/26/1982 | CA1117202A1 Key array |
| 01/06/1982 | EP0042952A1 Arrangement for bidirectional information transfer on a single direction bus |
| 12/22/1981 | CA1114920A1 Key discrimination circuit |
| 12/08/1981 | US4305135 Program controlled capacitive keyboard variable threshold sensing system |
| 12/08/1981 | US4305065 Key input circuit |
| 12/01/1981 | US4303907 Low power switch closure sensing circuit |
| 11/24/1981 | US4302816 Key input control apparatus |
| 11/11/1981 | EP0039434A1 Signal storing device |
| 11/11/1981 | EP0039393A2 Text recorder with automatic word ending and method of operating the same |
| 11/10/1981 | CA1112369A1 Video processing logic |
| 11/04/1981 | EP0039233A2 Data input device |
| 11/03/1981 | US4298861 Integrated ultrasonic magnetic encoder |
| 10/06/1981 | US4293849 Keyboard encoder using priority encoders |
| 09/22/1981 | US4291385 Calculator having merged key codes |
| 09/08/1981 | US4288786 Touch sensing keyboard construction |
| 08/20/1981 | WO1981002350A1 Scan-controlled keyboard |
| 08/04/1981 | US4282516 Keyboard encoding arrangement |
| 07/28/1981 | US4281323 Noise responsive data input apparatus and method |
| 07/07/1981 | US4277784 Switch scanning means for use with integrated circuits |
| 07/07/1981 | US4277780 Scan-controlled keyboard |
| 06/16/1981 | CA1103330A1 Keyboard apparatus |
| 05/26/1981 | CA1101997A1 Transaction terminal |
| 05/05/1981 | CA1100598A1 Multiple shift electronic keyboard |
| 04/21/1981 | US4263659 Electronic instrument with a flexible keyboard |
| 04/21/1981 | US4263582 Keyboard with an externally programmable repeat rate and repeat delay rate counter |
| 04/15/1981 | EP0026840A2 Circuit arrangement for converting characters to be fed by a keyboard into code characters, especially teleprinter characters |
| 03/24/1981 | US4258426 Device for selecting values of data elements |
| 03/24/1981 | US4258356 Multi bar encoding apparatus utilizing acoustic energy |