1
Roberta S Cohen, Kenneth M Huber, Deborah J Mills: Communication system having unified messaging. American Telephone and Telegraph Company, AT&T Information Systems, David H Tannenbaum, David R Padnes, June 6, 1989: US04837798 (791 worldwide citation)

Unified messaging is a concept that provides for a single electronic mailbox for different types of messages. The mailbox can be on a user's host computer, PBX, PC, etc., and the user has consistant facilities available to originate, receive and manipulate messages. Messages can be translated from o ...


2
Peter E Costello, Lawrence D Fossett, Michael S Lane, Terrence T Quin, Nicholas K Smith: ACD Management information system. AT&T Bell Laboratories, David H Tannenbaum, April 9, 1985: US04510351 (215 worldwide citation)

There is disclosed an ACD management information system which tracks attendant work performance without regard to the actual station at which the attendant is operating. The system also monitors non-ACD work states and provides individualized status reports based upon temporarily stored limit criter ...


3
Leonard R Kasday: Touch position sensitive surface. AT&T Bell Laboratories, David H Tannenbaum, November 20, 1984: US04484179 (212 worldwide citation)

A touch sensitive device is arranged with substantially parallel surfaces which are at least partially transparent to light. A flexible membrane is supported above the top surface of the screen and when the overlay is flexed into contact with the screen, light which had passed through the screen, is ...


4
Charles C Hayden: Graphics based call management. American Telephone & Telegraph, AT&T Information Systems, David H Tannenbaum, March 24, 1987: US04653090 (151 worldwide citation)

There is disclosed a method of setting up, manipulating, and taking down communication connections. The telephone instrument would include a graphics screen, such as a PC, and a series of call appearance boxes would be represented on the screen. Each possible party to a connection would be represent ...


5
Harold G Alles, Peter S Kubik: Deformable touch sensitive surface. AT&T Bell Laboratories, David H Tannenbaum, September 17, 1985: US04542375 (148 worldwide citation)

A touch sensitive device is arranged with substantially parallel surfaces inside which light from a synchronized source, such as a CRT, can become trapped by total internal reflection. The screen is fitted with photodetectors which respond to the entrapment of light within the surfaces. The device i ...


6
Charles R Baugh, Robert M Smith: Communication line interface for controlling data information having differing transmission characteristics. Bell Telephone Laboratories Incorporated, David H Tannenbaum, April 24, 1984: US04445213 (142 worldwide citation)

There is disclosed an office communication system adapted to handle both bursty and continuous data transmission over a single transmission facility to a central switching network. A programmable station controller is used at each station location to interface a number of transmission inputs to the ...


7
James B Mallos: Touch position sensitive surface. Bell Telephone Laboratories Incorporated, David H Tannenbaum, August 24, 1982: US04346376 (122 worldwide citation)

A touch sensitive device is arranged with substantially parallel surfaces inside which light from a synchronized source, such as a CRT, can become trapped by total internal reflection. The edges of the device are fitted with photodetectors which respond to the entrapment of light within the surfaces ...


8
James R Fleming, William A Frezza, Gerald S Soloway: Terminal generation of dynamically redefinable character sets. Bell Telephone Laboratories Incorporated, David H Tannenbaum, March 27, 1984: US04439761 (122 worldwide citation)

A graphic display terminal is arranged to receive from a sending source drawing instructions containing the description of a display character. The terminal, under control independent from the sending source, interprets each received drawing instruction into a particular picture description bit patt ...


9
Kenneth K Chan, Philip W Hartmann, Scott P Lamons, Terry G Lyons, Argyrios C Milonas: Virtual local area network. American Telephone and Telegraph Company, AT&T Information Systems, David H Tannenbaum, David R Padnes, April 18, 1989: US04823338 (116 worldwide citation)

A system is disclosed for completing communication connections from end-users served by a connectionless (broadcast) type system in a manner which allows expansion of the calling area beyond the immediate physical limitations of the broadcast media. The system is based upon a device for mediating be ...


10
Joseph R Everhart, Jeffrey G Osborn: Encryption system key distribution method and apparatus. AT&T Bell Laboratories, David H Tannenbaum, March 25, 1986: US04578531 (101 worldwide citation)

Encryption systems typically rely on the distribution of cipher keys between terminals for scrambling and unscrambling transmitted messages. Elaborate security precautions are necessary to protect the cipher keys since a compromise of the key could result in a compromise of the transmission. There i ...