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Eddie Ka Lun Law, Biswajit Nandy, Alan S J Chapman: Scaleable web server and method of efficiently managing multiple servers. Nortel Networks, December 11, 2001: US06330602 (294 worldwide citation)

A client-server architecture includes a plurality of clients and a plurality of servers. Information resources are replicated among the servers. According to one aspect, the invention includes an intermediary device called a “depot” sitting transparently between a client and a pool of servers which ...


2
Scott A Inrig, Alan S J Chapman: Method for providing a substitute memory in a data processing system. Northern Electric Company, Achmed N Sadik, April 17, 1979: US04150428 (65 worldwide citation)

A method for substituting one memory module for another, faulty, memory module comprises designating and marking a memory module as the substitute module, which, upon detection of a fault in the other memory module, is inhibited from responding to its own address when called, and responds to the add ...


3
Abdulaziz S Almulhem, Alan S J Chapman, John E Vincent: Supertrunking for packet switching. Nortel Networks, July 1, 2003: US06587431 (49 worldwide citation)

A packet routing system is disclosed that allows for efficient transfers of IP streams from router to router with use of supertrunking. The router that receives an IP stream set for transmission on a supertrunk, individually inputs the IP packets, determines the logical output port corresponding to ...


4
Nadir Nizamuddin, Alan S J Chapman, John W J Williams, Alan M Redmond: Digital key telephone system. Northern Telecom, Foley & Lardner Schwartz Jeffery Schwaab Mack Blumenthal & Evans, August 4, 1992: US05136585 (36 worldwide citation)

A key telephone system includes a plurality of ports linked by port associated bidirectional communication channels which are synchronously switched by transferring bit states between ones of the channels to provide communication paths between the ports as directed by a central processor. The ports ...


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Timothy J Littlewood, David J Robertson, Ronald J Maginley, Alan S J Chapman, Terence N Thomas, Nadir Nizamuddin: Digital key telephone system. Northern Telecom, Foley & Lardner Schwartz Jeffery Schwaab Mack Blumenthal & Evans, June 25, 1991: US05027345 (21 worldwide citation)

Relocation and/or replacement of terminal apparatus in telecommunications systems including, but not necessarily limited to, key telephone systems, usually entails reassignment of administration data; for example, features. When a station or terminal apparatus is moved physically from one port to an ...


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David J Robertson, Ronald J Maginley, Alan S J Chapman, Terence N Thomas, Nadir Nizamuddin, John W J Williams, Alan M Redmond, Robert S Morley: Digital key telephone system. Northern Telecom, Foley & Lardner Schwartz Jeffery Schwaab Mack Blumenthal & Evans, January 9, 1990: US04893310 (21 worldwide citation)

A key telephone system includes a plurality of ports being linked by port associated bidirectional communication channels which are synchronously switched by transferring bit states between ones of the channels to provide communication paths between the ports as directed by a central processor. The ...


7