1
Michael D Schroeder, Roger M Needham, Charles P Thacker, Andrew D Birrell, Thomas L Rodeheffer, Edwin H Satterthwaite Jr, Hallam G Murray Jr: High-speed mesh connected local area network. Digital Equipment Corporation, Flehr Hohbach Test Albritton & Herbert, February 11, 1992: US05088091 (113 worldwide citation)

A mesh connected local area network provides automatic packet switching and routing between host computers coupled to the network. The network has a multiplicity of cut-through, nonblocking switches, each capable of simultaneously routing a multiplicity of data packets. Low host-to-host latency is a ...


2
Andrew Hopper, Roy Want, Roger M Needham, David J Wheeler: Carrier locating system. Olivetti Research, Lee Mann Smith McWilliams Sweeney & Ohlson, March 28, 1995: US05402469 (43 worldwide citation)

A system for locating any mobile body or a plurality thereof within a predetermined environment, wherein each mobile body carries a transmitter (10 to 18), each transmitter producing a unique identifying signal, and a plurality of receivers (20 to 32) located in a corresponding plurality of defined ...


3
Andrew Hopper, Roy Want, Roger M Needham, David J Wheeler: Locating and authentication system. Olivetti Research, Lee Mann Smith McWilliams Sweeney & Ohlson, February 20, 1996: US05493283 (38 worldwide citation)

A system for locating any mobile body of a plurality thereof within a predetermined environment, wherein each mobile body carries a transmitter (10 to 18), each transmitter producing a unique identifying signal, and a plurality of receivers (20 to 32) located in a corresponding plurality of defined ...


4
Lyndsay Williams, Roger M Needham: Radio-frequency badge for location measurement. Microsoft Corporation, Richard T Lyon, Lyon & Harr, April 13, 2004: US06720922 (19 worldwide citation)

A system and process for determining the location of persons and objects using transmitters (TXs) that transmit location messages to at least one receiver connected to a computer, in a network of computers. The TXs are small, battery-powered, radio frequency transmitters carried by the person or obj ...


5
Lyndsay Williams, Roger M Needham: Radio-frequency badge for location measurement. Lyon & Harr, October 2, 2003: US20030184475-A1 (1 worldwide citation)

A system and process for determining the location of persons and objects using transmitters (TXs) that transmit location messages to at least one receiver connected to a computer, in a network of computers. The TXs are small, battery-powered, radio frequency transmitters carried by the person or obj ...