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AssigneesAmerican Telephone and Telegraph Company, AT&T Information Systems Inc.
InventorsJohn M. Nichols, Richard A. Windhausen
Estimating the term…
An arrangement for securing data transmissions to and from one data device from among a plurality of data devices sharing a common interface is disclosed. In a data communication network, a master communication bus connects to a plurality of data transmitting and receiving devices via a single interface. The disclosed arrangement provides circuitry in the common interface which generates a jamming signal to all devices connected to the interface except for that one device which is either transmitting or receiving a data-transmission. The jamming signal inhibits all the connected devices from monitoring and detecting the data transmission processes of the interface. The one transmitting and receiving device is enabled to either transmit or receive data during the generation of the jamming signal which ensures a secure data transmission and prevents "eavesdropping" by the other devices. The jamming signal is removed at the conclusion of the data transmission to or from the one device.
In a data communication network interconnecting a plurality of data terminal devices via corresponding interface devices where a group of said data terminal devices share a single interface device, a data security arrangement in said single interface device for providing privacy of data transmissions comprising:
In a data communication network interconnecting a plurality of data terminal devices via interface devices where a group of said data terminal devices share a single interface device, a data transmission security arrangement in said single interface device for providing privacy of data transmissions comprising:
In a data communication network interconnecting a plurality of data terminal devices via corresponding interface devices where a group of said data terminal devices share a single interface device, a data transmission security arrangement in said single interface device for providing privacy of data transmissions comprising:
In a data communication network interconnecting a plurality of data terminal devices via corresponding interface devices where a group of said data terminal devices share a single interface device, a data security transmission method for providing privacy of data transmissions comprising the steps of:
In a data communication network interconnecting a plurality of data terminal devices via interface devices where a group of said data terminal devices share a single interface device, a method of data transmission security for providing privacy of data transmissions comprising the steps of:
In a data communication network interconnecting a plurality of data terminal devices via corresponding interface devices where a group of said data terminal devices share a single interface device, a method of providing data transmission security for providing privacy of data transmissions comprising the steps of:
Dependencies are inferred from the claim text.