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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 5559883 | Method and apparatus for secure data packet bus communication A method and system for secured data communication where a plurality of users communicate through ports on a common communication channel. The users communicate by transmitting and receiving data packets. The data packets are transmitted with a variety of... | 09/24/1996 |
| 5337310 | Backplane communication system and method A backplane communication system based on CSMA/CD protocol including a plurality of communication nodes and method of encoding/decoding data via backplane bus. Each communication node (1) has transmit and receive data links (2,3) connected to the backplan... | 08/09/1994 |
| 5311593 | Security system for a network concentrator A method and apparatus for providing secure communication on open networks. Each port of the network is provided with a security entity which monitors the communication between one port to the other. End stations connected to the ports communicate with ot... | 05/10/1994 |
| 5303266 | Multimedia high speed network A system is provided implementing an extremely high speed link allowing selection of either twisted pair (or like media) and fiber media in to provide a high speed multimedia local area network. A high speed transmission link for twisted pair, coaxial cab... | 04/12/1994 |
| 5301303 | Communication system concentrator configurable to different access methods A local net area network, or LAN, configuration is provided with a multiple generic LAN channel architecture which can be logically and dynamically changed. The configuration control can be applied to each module of the network and to each port of a modul... | 04/05/1994 |
