| Patents for H04L 13 - Details of the apparatus or circuits covered by groups or (1,941) |
|---|
| 10/29/1980 | EP0017988A1 Multiplex interface circuit connecting a processor to a synchronous transmission means |
| 10/21/1980 | US4229617 Assembly for processing punched paper tape |
| 09/30/1980 | CA1086654A2 Control apparatus for serial printer |
| 09/23/1980 | CA1086233A1 Arrangements for producing information for controlling a printer unit of a teleprinter |
| 09/09/1980 | US4221374 Device for moving sheet data carriers from and to stacks of sheets |
| 07/29/1980 | CA1082787A1 Method and apparatus for signaling in a communication system |
| 05/29/1980 | WO1980001125A1 Access arrangement with keys for distribution and dialogue |
| 05/28/1980 | EP0011593A1 Control device with a keyboard for distribution and dialogue services |
| 05/14/1980 | EP0010753A1 A paper tape punch and reader assembly |
| 05/06/1980 | CA1076960A1 Printer |
| 04/15/1980 | CA1075822A1 I/o bus transceiver for a data processing system |
| 01/29/1980 | US4185931 Circuit arrangement for determining the position of a printer carriage in printer devices |
| 01/09/1980 | EP0006143A1 Carriage drive for printer or teleprinter |
| 01/01/1980 | US4181909 Method and appratus for initializing remote data communication equipment |
| 11/29/1979 | WO1979001043A1 Series-parallel converter |
| 11/28/1979 | EP0005488A1 Circuit arrangement for keyboard memory release in teleprinters or data printers |
| 03/13/1979 | US4143980 Shifting arrangement for exact space positioning of a writing carriage in typewriters |
| 01/30/1979 | US4136809 Paper transport device |
| 12/12/1978 | CA1044149A1 Control device of a teletype to be used by invalids |
| 08/15/1978 | CA1036705A1 D.c. signal receiving circuit arrangements |
| 06/13/1978 | US4095045 Method and apparatus for signaling in a communication system |
| 05/23/1978 | US4091235 Printer and control circuit therefor |
| 03/14/1978 | US4079371 Rate converter for digital signals having a negative feedback phase lock loop |
| 02/07/1978 | US4072819 Circuit arrangement for storing information formed of teletype characters |
| 12/27/1977 | US4065639 Synchronous transmission control system |
| 12/13/1977 | US4063029 Arrangement for effecting a variable modification of information used to control a printer unit of a teleprinter |
| 09/13/1977 | US4048439 Control device of a teletypewriter to be used by invalids |
| 09/06/1977 | US4047201 I/O Bus transceiver for a data processing system |
| 05/31/1977 | US4027100 Code transmission system having buffers of approximately equal capacities on both transmitting and receiving sides |
| 05/31/1977 | US4027099 Reducing teleprinter errors caused by primary power frequency variations |
| 04/12/1977 | US4017688 Method and devices for inserting additional pattern in, or removing same from, a message |
| 12/28/1976 | US4000363 Arrangement for the production of selection pulses in teleprinters |
| 09/21/1976 | US3982166 Control unit for paper transport |
| 09/07/1976 | US3979036 Paper guide for tape perforators with an automatic pitch-adapted threading mechanism for the feed element zone |
| 08/24/1976 | US3976972 Prevention of non-allowed character combinations |
| 08/17/1976 | US3975712 Asynchronous communication interface adaptor |
| 06/29/1976 | US3967273 Method and apparatus for using pushbutton telephone keys for generation of alpha-numeric information |
| 06/15/1976 | US3963108 Matrix printing head |
| 06/01/1976 | US3960250 Skirted dashpot piston |
| 02/03/1976 | US3936700 Electronic overcurrent protection of a DC data transmission circuit |
| 01/13/1976 | US3932838 Method and apparatus for controlling circuitry with a plurality of switching means |