Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 7, 2009
Patent Application Number
10398704
Date Filed
October 5, 2001
Patent Citations Received
Patent Primary Examiner
Patent abstract
Data transfer occurs between an ISP database (21) and a vending machine database (11), via respective controllers (22 and 121). TCP ports and sockets (e.g. Telnet) (125, 126) at the module controller (121) and (225, 226) at the database controller (22) are used to establish separate CONTROL and CLEAR channels. The CONTROL channel provides end-to-end control information between the remote module controller (121) and the database controller (22), whilst the CLEAR channel is available to exchange pure end-to-end data.
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