MUTIPLEXING SYSTEM FOR A FUEL TRANSACTION ENVIRONMENT
First Claim
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1. A fuel transaction system for enabling the customer purchase of fuel from a location having a 4 data wire fuel dispensing system, a 4 data wire remote station for receiving customer data from the 4 data wire fuel dispensing system and two underground communication wires positioned between the remote station to the fuel dispensing system comprising:
- a) an active multiplexing/demultiplexing unit having active power and two data inputs and two data outputs actively connected to the fuel communication system and a two wire output for connection to an end of the two leading wires;
b) a passive multiplexing/demultiplexing unit having a two wire input for connection to an opposite end of the two communication wires and a four wire data output for connection to the remote station;
c) wherein the active and passive units are actively connected from the two wire output to the two wire input via the two communication wires; and
d) wherein the system is capable of multiplexing/demultiplexing 4 wire data to and from the fuel dispensing system and the 4 data wire remote station via the two communication wires.
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Abstract
The present invention relates to a system in fuel dispensing control such as gasoline pumps wherein a four wire data system is operated utilizing two wires and a multiplexing system.
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Citations
8 Claims
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1. A fuel transaction system for enabling the customer purchase of fuel from a location having a 4 data wire fuel dispensing system, a 4 data wire remote station for receiving customer data from the 4 data wire fuel dispensing system and two underground communication wires positioned between the remote station to the fuel dispensing system comprising:
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a) an active multiplexing/demultiplexing unit having active power and two data inputs and two data outputs actively connected to the fuel communication system and a two wire output for connection to an end of the two leading wires; b) a passive multiplexing/demultiplexing unit having a two wire input for connection to an opposite end of the two communication wires and a four wire data output for connection to the remote station; c) wherein the active and passive units are actively connected from the two wire output to the two wire input via the two communication wires; and d) wherein the system is capable of multiplexing/demultiplexing 4 wire data to and from the fuel dispensing system and the 4 data wire remote station via the two communication wires. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification
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Current AssigneeProgressive International Electronics Inc.
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Original AssigneeProgressive International Electronics Inc.
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InventorsBarker, Arthur E. Jr.
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Application NumberUS13/358,689Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current705/39CPC Class CodesG06Q 20/18 involving self-service term...
