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Efficient collection of information from vending machines

  • US 6,754,558 B2
  • Filed: 08/28/2001
  • Issued: 06/22/2004
  • Est. Priority Date: 08/28/2001
  • Status: Expired due to Fees
First Claim
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1. A vending machine, comprising:

  • a) a control system adapted to;

    i) determine new vending data for the vending machine, the new vending data relative to reference vending data kept at a central processing system for the vending machine; and

    ii) generate difference indicia capable of instructing the central processing system to modify the reference vending data to reflect the new vending data;

    b) communication electronics associated with said control system and adapted to communicate the difference indicia to the central processing system wherein the reference data at the central processing system is modified using the difference indicia to reflect the new vending data;

    wherein the reference vending data and the new vending data include records and data for the records end said control system is further adapted to compare the corresponding records for the reference vending data and the new vending data to identify records to insert into and records to delete from the reference vending data to reflect the new vending data.

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