| Patents for H04L 29 - Arrangements, apparatus, circuits or systems, not covered by a single one of groups (330,333) |
|---|
| 08/01/1978 | USRE29713 Rotary cutter drums |
| 07/18/1978 | US4101743 Test circuit for a protective coupler |
| 07/04/1978 | US4099259 Data stores and data storage system |
| 06/13/1978 | US4095277 Method for communicating text commands and instructions using conventional coded text characters and a structure for decoding and presenting command and instruction signals |
| 06/13/1978 | US4095045 Method and apparatus for signaling in a communication system |
| 06/06/1978 | US4093825 Data transmission system |
| 06/06/1978 | US4093819 Closed user group facility |
| 05/30/1978 | US4092492 Clockless serial data transfer |
| 05/16/1978 | US4090059 Thermal recording head for printer |
| 04/25/1978 | US4086534 Circuit for wire transmission of high frequency data communication pulse signals |
| 03/14/1978 | US4079452 Programmable controller with modular firmware for communication control |
| 02/14/1978 | US4074232 Data sending and receiving system for packet switching network |
| 01/31/1978 | US4071887 Synchronous serial data adaptor |
| 01/17/1978 | US4069396 Power saving circuit for use with a converter circuit in a telephone switching installation |
| 11/22/1977 | US4059727 Data transmission system between telephone subscriber location and telephone exchange location during idle telephone condition |
| 10/04/1977 | US4052702 Circuit for interfacing microcomputer to peripheral devices |
| 06/07/1977 | US4028493 Call progress signal detector |
| 05/24/1977 | US4025905 System for on-line processing of banking transactions |
| 04/12/1977 | US4017688 Method and devices for inserting additional pattern in, or removing same from, a message |
| 02/08/1977 | US4007449 Control device for local connection of a peripheral unit through a modem interface for remote connection |
| 02/01/1977 | US4005627 Rotary cutter drums |
| 01/11/1977 | US4002987 Circuit arrangement for limiting the transmission speed of data signals |
| 01/04/1977 | US4001504 Automatic terminal data rate selection |
| 12/28/1976 | US4000371 Facsimile transmission method and system |
| 10/12/1976 | US3986119 Emergency communication system |
| 10/05/1976 | US3984637 Computer terminal security system |
| 08/31/1976 | US3978449 Method and apparatus for in-band signalling in data transmission |
| 06/08/1976 | US3962546 Malfunction detection and changeover apparatus for data communications system |
| 05/25/1976 | US3959595 Concentrator |
| 03/30/1976 | US3947818 Bus-coupler |
| 03/16/1976 | US3944724 Paging system with selectively actuable pocket printers |
| 03/09/1976 | US3943348 Apparatus for monitoring the operation of a data processing communication system |
| 03/02/1976 | US3942157 Data gathering formatting and transmitting system having portable data collecting device |