1
James P Fernow, Roger P Levy: Data packet flow control scheme for switching networks. AT&T Bell Laboratories, Roy C Lipton, October 2, 1984: US04475192 (134 worldwide citation)

Flow of data packets through virtual circuits in a multinode packet switching network is controlled by authorizing packets to enter and to leave each node. When a packet entering a node does not have an authorization (credit) to leave, it is placed in a pool of buffers common to all virtual circuits ...


2
Jack Salz, Jean J Werner: Amplitude and frequency modulation system. Bell Telephone Laboratories Incorporated, Roy C Lipton, October 9, 1979: US04170764 (105 worldwide citation)

Combined amplitude and frequency-shift-keying (AM-FSK) modulation of a carrier wave by a baseband data signal achieves significant suppression of one of the sidebands to ease the design requirements of filters generally used in the transmission of FSK signals. The significant suppression effect is o ...


3
Francis Joseph Brophy, Jeremiah Francis Hayes: Adaptive polling technique. Bell Telephone Laboratories Incorporated, Roy C Lipton, January 31, 1978: US04071908 (74 worldwide citation)

Messages are collected by a central polling station from a plurality of remote terminal stations on a multiparty line. The central polling station is arranged to initially query stations in groups, probing successively smaller size subgroups of each group if a station in the group returns an acknowl ...


4
Henry C Bauer, Gary J Burns, Clair A Buzzard, Travis H Gordon, Heinz Kahlbrock, Robert F Ricca, Robert M Zachok: Collection of messages from data terminals using different protocols and formats. Bell Telephone Laboratories Incorporated, Roy C Lipton, July 28, 1981: US04281315 (66 worldwide citation)

A central controller (104) for a multipoint polling system arranged to collect inquiry messages from data terminals (102a-n, 103a-n) for processing by a data base (101) and for distributing response messages to the terminals, the several terminals using different communication protocols. The control ...


5
Glenn R Babecki, Carlos Escolar, Craig M Garnant, Hsin Kuo Kan, Frank Kaplan, Hueichi R Liu, George F MacLachlan, Peter J Matteo, John F McDonald, John D Palframan, Roger T Tran, Martin J Welt, Timothy A Wendt, Gregory S Yates, Paul M Zislis: Geographically distributed multiprocessor time-shared communication processing system. AT&T Bell Laboratories, Roy C Lipton, February 19, 1985: US04500960 (65 worldwide citation)

A geographically distributed multiprocessor system is implemented by locating groups of processors at nodes which are interconnected by way of a transport network and which are connected by way of local lines to customer terminals and hosts. Each processor supports a plurality of processes which com ...


6
Alexander G Fraser: Control circuit for modifying contents of packet switch random access memory. Bell Telephone Laboratories Incorporated, Roy C Lipton, August 19, 1980: US04218756 (48 worldwide citation)

The information in the header portion of a data packet, which header includes the old module and channel numbers, is used to access locations in a random access memory which contain new module and channel numbers or words that identify the packet routing. To convert the "virtual" address defined by ...


7
Sudhir R Ahuja, Dhiraj K Sharma: System for displaying overlapping pages of information. Bell Telephone Laboratories Incorporated, Roy C Lipton, November 8, 1983: US04414628 (43 worldwide citation)

Various size frames or pages of information elements stored in a computer system can be simultaneously displayed on a screen-based terminal. The computer processor identifies the screen position the user selects for each of the stored pages and the top-to-bottom order of the pages with respect to vi ...


8
Orlando Napolitano, Robert Edward Reid, Burton R Saltzberg, Nathan Harold Stochel, John Ronald Tingley: Multipoint polling technique. Bell Telephone Laboratories Incorporated, Roy C Lipton, July 11, 1978: US04100533 (43 worldwide citation)

A multipoint polling system wherein a multipoint switch selectively connects a plurality of remote terminals to a central station in response to remote terminal addresses transmitted on a signaling path to the multipoint switch. Polling apparatus stores portions of a remote terminal address list pro ...


9
Glenn R Babecki, Frank Kaplan, Hueichi R Liu, George F MacLachlan, John F McDonald, John D Palframan, Martin J Welt, Timothy A Wendt, Gregory S Yates: Geographically distributed multiprocessor time-shared communication processing system. AT&T Bell Laboratories, Roy C Lipton, Ronald D Slusky, September 30, 1986: US04614841 (39 worldwide citation)

A geographically distributed multiprocessor system is implemented by locating groups of processors at nodes which are interconnected by way of a transport network and which are connected by way of local lines to customer terminals and hosts. Each processor supports a plurality of processes including ...


10
Stanley L Freeny, Arthur B Larsen, Thomas J Pedersen: Ring communication system data packets reusable a variable number of times. Bell Telephone Laboratories Incorporated, Roy C Lipton, November 25, 1980: US04236245 (35 worldwide citation)

Communication between a plurality of data terminals (101(1) to 101(b)) serially interconnected with a main terminal (102) is provided by data frames or packets having a data portion for accommodating a burst of data preceeded by a header portion for accommodating address data followed by an empty/fu ...