Signature pulse generator and method of detecting tampering with

Details Signature pulse generator and method of detecting tampering with Signature pulse generator and method of detecting tampering with

1999-03-31

2000-08-29

Jacyna, J. Casimer

Dispensing

Processes of dispensing

222 71, 25023114, B67D 500

Patent

active

061094773

ABSTRACT:
A method and apparatus for detecting tampering with a fuel dispenser digital pulse stream during dispensing of a fuel. The method includes generating a digital pulse stream indicative of the volume and flow rate of fuel dispensed wherein the pulse stream includes an identifying pulse anomaly; storing a digital pulse stream signature in a memory device wherein the stored signature includes the identifying pulse anomaly; comparing the incoming digital pulse stream with the stored digital pulse stream; and allowing fuel delivery to continue if the incoming digital pulse stream generated by the pulse generator is substantially similar to the stored digital pulse stream signature.

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