作者: Walter E. Warn , Fred K. Carr
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摘要: A fuel dispenser-credit card reader control system for controlling the dispensing process and accepting payment dispensed through a is disclosed. The dispenser controller has microprocessor with read-only-memory storing operating routines command code read-and-write-memory responses. Configuration circuits translate communication language of into protocol readable by dispensers such that various brands can be controlled accepted. feature disclosure includes transmitting an encrypted PIN number data block from to site without analyzing data, manipulating or permanently data.